production systems aligned with distributed economies: examples from energy and biomass sectors

11
Production systems aligned with distributed economies: Examples from energy and biomass sectors Murat Mirata * , Helen Nilsson, Jaakko Kuisma International Institute for Industrial Environmental Economics (IIIEE), Box 196, Tegnerplatsen 4, 221 00 Lund, Sweden Accepted 20 December 2004 Abstract This article builds on the introduction to the concept of distributed economies (DE) by Johansson et al. [Johansson A, Kisch P, Mirata M. Distributed economies e a new engine for innovation. Journal of Cleaner Production, this issue] and takes the discussion further by reviewing examples of production systems that, due to certain characteristics, can be seen as illustrative DE elements. Through selected cases from energy production and biomass products sectors, the environmental and business benefits provided by local, small-scale, flexible production units that increase value addition to local assets are exemplified. The factors supporting the development of such systems are also reviewed. The lessons extracted from these cases are designed to guide the development of other production and product systems aligned with DE. Ó 2005 Elsevier Ltd. All rights reserved. Keywords: Distributed economies; Localised production systems; Small-scale production systems; Regional development; Sustainable development 1. Introduction This article continues the discussion initiated in Johansson et al. [1], where the idea of distributed economies is presented. We are not aware of the existence of any industrial regional system, which in terms of its overall functioning, can be described as an operational example of DE. However, in this paper we take the concept of DE a step further through a discussion of certain aspects surrounding selected production systems including operational as well as projected ones. The systems we include do not represent distributed econo- mies themselves. However, due to having characteristics aligned with those formulated by Johansson et al. and those we present in subsequent, they are deemed as illustrative elements that can be part of distributed economies. Besides elaborating on the operational attributes that make them desirable for improved sustainability, we also provide a closer look at the enabling factors for the evolution of such distributed systems as commercially viable units. Our overriding goal is to contribute to the transition towards more sustainable economic activities by extracting lessons from cases that can guide the evolution and spread of alternative production systems. In the following section, we target the readers who are not familiar with the work by Johansson et al., also included in this issue, and provide a brief overview of the DE concept and highlight the elements relevant to our discussion. We then introduce the methodology that guides the development of our cases and analysis, before introducing our cases from the energy provision and biomass products sectors. The analysis section elabo- rates on the specific characteristics of these cases in regards to their contribution to sustainability and the development of distributed economies. The factors that support their development and sustained operation are * Corresponding author. Tel.: C46 46 2220200; fax: C46 46 2220230. E-mail address: [email protected] (M. Mirata). 0959-6526/$ - see front matter Ó 2005 Elsevier Ltd. All rights reserved. doi:10.1016/j.jclepro.2004.12.018 Journal of Cleaner Production 13 (2005) 981e991 www.elsevier.com/locate/jclepro

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Journal of Cleaner Production 13 (2005) 981e991

www.elsevier.com/locate/jclepro

Production systems aligned with distributed economies: Examplesfrom energy and biomass sectors

Murat Mirata*, Helen Nilsson, Jaakko Kuisma

International Institute for Industrial Environmental Economics (IIIEE), Box 196, Tegnerplatsen 4, 221 00 Lund, Sweden

Accepted 20 December 2004

Abstract

This article builds on the introduction to the concept of distributed economies (DE) by Johansson et al. [Johansson A, Kisch P,Mirata M. Distributed economies e a new engine for innovation. Journal of Cleaner Production, this issue] and takes the discussionfurther by reviewing examples of production systems that, due to certain characteristics, can be seen as illustrative DE elements.

Through selected cases from energy production and biomass products sectors, the environmental and business benefits provided bylocal, small-scale, flexible production units that increase value addition to local assets are exemplified. The factors supporting thedevelopment of such systems are also reviewed. The lessons extracted from these cases are designed to guide the development of

other production and product systems aligned with DE.� 2005 Elsevier Ltd. All rights reserved.

Keywords: Distributed economies; Localised production systems; Small-scale production systems; Regional development; Sustainable development

1. Introduction

This article continues the discussion initiated inJohansson et al. [1], where the idea of distributedeconomies is presented.We are not aware of the existenceof any industrial regional system, which in terms of itsoverall functioning, can be described as an operationalexample of DE. However, in this paper we take theconcept of DE a step further through a discussion ofcertain aspects surrounding selected production systemsincluding operational as well as projected ones. Thesystems we include do not represent distributed econo-mies themselves. However, due to having characteristicsaligned with those formulated by Johansson et al. andthose we present in subsequent, they are deemed asillustrative elements that can be part of distributed

* Corresponding author. Tel.: C46 46 2220200; fax: C46 46

2220230.

E-mail address: [email protected] (M. Mirata).

0959-6526/$ - see front matter � 2005 Elsevier Ltd. All rights reserved.

doi:10.1016/j.jclepro.2004.12.018

economies. Besides elaborating on the operationalattributes that make them desirable for improvedsustainability, we also provide a closer look at theenabling factors for the evolution of such distributedsystems as commercially viable units. Our overriding goalis to contribute to the transition towardsmore sustainableeconomic activities by extracting lessons from cases thatcan guide the evolution and spread of alternativeproduction systems.

In the following section, we target the readers whoare not familiar with the work by Johansson et al., alsoincluded in this issue, and provide a brief overview ofthe DE concept and highlight the elements relevant toour discussion. We then introduce the methodology thatguides the development of our cases and analysis, beforeintroducing our cases from the energy provision andbiomass products sectors. The analysis section elabo-rates on the specific characteristics of these cases inregards to their contribution to sustainability and thedevelopment of distributed economies. The factors thatsupport their development and sustained operation are

982 M. Mirata et al. / Journal of Cleaner Production 13 (2005) 981e991

also reviewed. In our conclusions we emphasise theimportance of identifying and studying additionalsystems that exhibit characteristics aligned with DE asthe knowledge such exercises generate will be valuable tocatalyse developments towards DE.

2. Distributed economies for improved sustainability

In Johansson et al. [1], the problems associated withsustainability and sustainable development are discussedwith particular emphasis on the issues surrounding largeversus small-scale production units. Mainstream eco-nomic and business management models have been verysuccessful in catalysing industrial growth and econom-ically efficient production systems. On the other hand,growth that is dominantly driven by the sole rule of‘‘production efficiency’’ often results in the increasingorganisation of industrial activities in the form ofcentralised, large-scale production units. These units,mostly under the ownership of big and powerfulcorporations, have increasingly uniform product out-puts that are mostly traded in global markets. However,the dominance of such centralised, large-scale pro-duction units bring along dynamics that underminesustainability. Examples of such dynamics include:

� Increasing throughput of non-renewable materialand energy resources to the economy and increasingwaste generation;

� Increasing the movement of raw materials andproducts over larger distances, mainly relying ondecreasing transportation costs;

� Distancing production from consumers and therebyhiding the environmental and social costs [2];

� Weakening the local actors’ possibilities to haveownership and control over their immediate eco-nomic environment;

� Distorting or destroying cultural identities; and� Limiting the diversity in regional economic activities[3e6].

In addition to such environmental and socio-economic drawbacks, Johansson et al. caution that theinflexible nature of large-scale, centralised productionunits limit their ability to respond to rapidly changingdemands and thus, threaten their business viability [1].All of these motivate the need for alternative forms oforganising economic activities driven by a different setof values and priorities if a more sustainable state is tobe reached. As one alternative, the authors introduce theidea of creating distributed economies (DE) throughdownsizing a selective share of production activitiesand distributing them to the regions in the form ofsmall-scale, flexible, and synergistically inter-connected

production units, thereby establishing a renewed bal-ance between these and large-scale production units.

These authors further state that social well-being andquality of life should be the main values guiding thedevelopment of DE during which priority should begiven to good environmental performance and localpeoples’ preferences regarding how they want to live [1].

One of the challenges facing the DE concept is todemonstrate that more desirable environmental andsocial outcomes may prevail through decentralisationand downsizing of selected productioneconsumptionsystems and finding a renewed balance between theseand scale economies. Equally important is the challengeto demonstrate that such transformations can alsoprovide adequate economic and business benefits atthe right juncture.

3. Methodology

As stated, the purpose of this paper is to reviewselected production systems that can be compatible withthe elements of DE and to extract useful lessons that canassist the development towards DE. The ability to dothis requires criteria that can guide the selection of casesand, to a certain extent, their analysis. Here, we can findguidance from the ‘fundamental areas of concern’ ascatalogued by Johansson et al. [1] intended to guide thedevelopments of DE. However, these ‘areas of concern’address a wide spectrum of aspects relevant to regionaleconomies and in totality are too broad for the scope ofthis work, which dominantly focuses on productionsystems. Thus, we developed our guiding criteriathrough distilling several operational and organisationalcharacteristics implied by Johansson et al. and bysynthesizing them with those that Mirata et al. [7]proposed to guide the development of more sustainableregional production systems. Consequently, in ourselection of cases, we selected locally and regionallyfocused small-scale production systems that satisfy anycombination of the following:

� Increasing the share of renewable resources ineconomic activities;

� Increasing wealth creation for a larger number ofpeople;

� Decreasing pollutant emissions and waste generationat the local/regional level;

� Increasing the sustainable use of local resources ineconomic activities;

� Increasing the value addition to local resources;� Increasing the share of added value benefits retainedin the regions;

� Increasing the share of non-material (e.g. informa-tion, know-how) and higher added value materialresources in the cross-boundary resource flows;

983M. Mirata et al. / Journal of Cleaner Production 13 (2005) 981e991

� Increasing the diversity and flexibility of economicactivities;

� Increasing the diversity and intensity of communica-tion and collaboration among regional activities;

In our analysis, we focused our attention on theenvironmental, socio-economic and business relatedimplications of these cases and highlighted the factorsthat assist their development and functioning.

The information used in the development of our casesis collected through a combination of, direct observa-tions, face-to-face and telephone interviews with rele-vant regional actors and review of the relevantliterature. These activities were performed:

� Directly by ourselves, as part of our doctoralresearch activities focusing on regional sustainabledevelopment at the ‘International Institute forIndustrial Environmental Economics, (IIIEE) ofLund University;

� By the IIIEE’s master’s students we supervisedbetween 2002 and 2004 in their research for thefulfilment of the requirements of ‘Applied Researchin Preventative Environmental Approaches I and II’and ‘Strategic Environmental Development’ coursesof ‘Environmental Management and the PolicyMasters’ programme.

4. Cases of distributed systems of production

and consumption

In the following sections, we provide brief accountsof selected production systems that satisfy any combina-tions of the criteria that we have outlined in the previoussection and are therefore, considered compatible withDEs. Although they have elements extending to thewider region, our cases from bio-energy and biomassproducts have more of a local orientation. However,because such local elements form the building blocksthrough their inter-connections to enable a transitiontowards DE, they remain valid for our discussion, aswell. Besides highlighting their desirable characteristicswe also provide a closer look on the enabling factors forsuch distributed systems to evolve as commerciallyviable units.

4.1. Provision of biomass based district heating andelectricity in Nordic countries

Apart from being one of the leading Nordic industrialclusters focussed upon export markets, the bio-energysector, particularly in Sweden and Finland, has demon-strated its potential to boost local development.Through their employment of decentralised energy

solutions at the municipal level and utilising locallyand regionally available materials, these systems enableincreased value addition to local resources and havereduced the regional dependency on fossil-fuels.

4.2. Co-combustion of gasified biomass and sourceseparated waste in Lahti, Finland1

Developments from the Finnish city of Lahti help usto demonstrate the benefits associated with valueaddition to local and regional resources, in this case,mostly embedded in biomass and source separated wastestreams. It also helps to highlight how such valueaddition is enabled through a synergistic linkage betweena small-scale innovative technology and a large-scaleconventional one.

Being one of the largest combined heat and power(CHP) units in Finland, the Kymijarvi power plantowned by Lahti Energia Oy produces more than 70% ofthe electricity and more than 90% of the heating needsof the city of Lahti, which has approximately 100,000inhabitants. The plant was put into operation in 1976and was modified in 1982 to switch from heavy fuel oilto pulverised coal e a decision motivated by the 1982 oilcrisis. A gas turbine was installed in this plant in 1986and was connected to a heat exchanger to preheat theboiler feed water. The measures employed by the plantto control SOx and NOx emissions are the use of lowsulphur containing coal (only 0.3e0.4% sulphur) andthe use of burners provided with flue gas circulation andstaged combustion, respectively.

However, our prime focus in this case is on thegasifier unit that was installed and connected to themain boiler in 1997. This unit converts regionallysourced biomass, and source separated industrial andmunicipal solid waste into a fuel of low calorific valuethat is co-combusted with coal in the main boiler.

Energy recovery from locally available biomass e i.e.bio-fuels and organic fraction of industrial and domesticwaste streams e is a desirable development, because: (a)it provides a means of reducing emissions (politicallymost important, those of CO2) linked to energyproduction [8], and (b) it offers a preferable option overlandfilling in managing certain fractions of separatedwaste streams. However, because the availability of suchbiomass is limited within regions and its transportationover long distances is not feasible (due to their lowenergy density), plants which can perform such con-versions are generally smaller than fossil-fuel fired units.Moreover, due to their smaller size, these plants require

1 The information given in this section was collected as part of

a research project titled ‘‘Biomass energy systems and local economiese

towards widespread adoption of decentralised production and con-

sumption systems’’ sponsored by Finish Ministry of Environment and

conducted by IIIEE.

984 M. Mirata et al. / Journal of Cleaner Production 13 (2005) 981e991

Bottom

ash

Coal

540 °C/170bar

Processing

Fly ash

Natural Gas

60 MW

350 GWh/a -15 % fuel input

1850 GWh/a -80 % of fuel input

360 MW

100 GWh/a -5 % of fuel input

Power

* 600 GWh/a

District Heat

Gasifier

540 °C/170 bar

Biomass

Fly ash

* 1000 GWh/a

Fig. 1. Simplified process diagramme of power and heat production in Kymijarvi power plant in Lahti, Finland [8].

much higher specific investment and operation costsand have lower power production efficiencies comparedto larger plants run on fossil-fuels. Nevertheless, theeconomic and technical feasibility of power productionfrom such materials is enhanced if they can be used inexisting medium- to large-scale fossil-fuel fired units. [8]This is enabled in Lahti through integrating a gasifierwith a larger pulverised coal boiler, where the biomassand other waste derived materials are gasified in theformer and used as supplementary fuel in the latter. Thearrangement in Kymijarvi power plant is illustrated inFig. 1.

In this case the decision to realise this transformationwas motivated by the fact that it simultaneously offeredenvironmental and economic benefits. This transforma-tion reduced the plant’s imported coal needs andreduced the emissions associated with its operations.This diversification of fuel base also provides flexibilityto the plant and enhances its economic stability. On theother hand, revalorisation of resources embedded inwaste streams with this scheme provides benefits forother local actors including industries, waste manage-ment functions and inhabitants.

There are plans in Lahti to build two new gasifiersequipped with a gas cleaning system. The cleanedproducts of the gasifiers will be combusted in a new160 MW steam boiler that will feed a new steam turbine.If realised, this system will produce 45 MW of electricityand 90 MW of district heating through the increased useof locally and regionally available biomass and wastederived fuel. Furthermore, it will allow for furtherreductions in the amounts of coal combusted andpollutants emitted.

4.3. Biomass based energy system in Enkoping withdedicated Salix plantations2

Our case from Enkoping helps us to demonstrate thebenefits linked to developing local capacity for increasedlocal production of a renewable resource that fuelsanother local production unit. It also exemplifies someof the benefits provided through synergistic inter-connections among different activities.

Enkoping is a small town with 38,000 inhabitants andis located in central Sweden. Here, a biomass fuelledCHP plant was commissioned in 1994 and an oil-firedboiler was converted to be run on wood dust. Ownedby Ena Kraft AB, these systems have the capacity toproduce 45 MW of heat, which satisfies Enkoping’sentire district heating needs and also produces 24 MWof electricity, which is sold to the national grid. Since1997, the energy production in Enkoping has been basedsolely on bio-fuels.

However, the region does not provide forest residuesin sufficient quantities and is therefore, a net importer ofbio-fuels. Given the increasing demand for bio-fuels thisexternal dependence was regarded as risky by Ena KraftAB, and motivated them to look at the possibilities ofincreasing the local short rotation forestry. Today, Salixtrees grown on 1200 ha of land by local farmers providethis plant with the possibility of substituting part oftheir imported fuels by locally produced ones. This

2 This section is based on the information collected by IIIEE

researchers and master’s students as part of the ‘‘Applied Research in

Preventative Environmental Approaches’’ exercise in the spring of

2004.

985M. Mirata et al. / Journal of Cleaner Production 13 (2005) 981e991

alternative and reliable fuel source provides increasedflexibility and the foundation for enhanced economicstability.

As part of another relevant development in Enkoping,since 2000, about 73 ha of Salix plantations adjacent tothe town’s wastewater treatment plant are irrigated bytreated wastewater pumped through a 33 km long dripirrigation system. Besides reducing the nitrogen loadingin the nearby river, this arrangement also accelerates thegrowth of the Salix trees and reduces their harvestingtime from 4 to 3 years. Moreover, wastewater treatmentsludge and bottom ash are also spread on the Salixplantations as fertilizers (further coverage of this casecan be found in Ref. [9] included in this issue).

4.4. Community owned windmill parks in NovaScotia, Canada3

Our case from Nova Scotia exemplifies a mechanismthrough which local investment, and thus, ownership, ina regional renewable energy development is stimulated.

During the past few decades, Nova Scotia’s tradi-tional economic cornerstones of coal mining and fishinghave both experienced dramatic downturns and theeconomy has been underdeveloped for most of thesecond half of the 20th century. Recently, the provincehas experienced an economic recovery, with the de-velopment of a strong tourism sector and significantcapital investment in an emerging offshore oil and gasindustry. Nonetheless, Nova Scotia remains a net re-ceiver of equalization funds within the Canadianconfederation.

With the initiative of the regional developmentagency, windmill development projects were recentlyinitiated in the region, coordinated by RenewableEnergy Services Ltd. (RESL). The objective of RESLis to develop the capacity to generate 150 MW ofelectricity through the Scotian WindFields over 3 years:25 MW in 2004/2005, 50 MW in 2005/2006 and 75 MWin 2006/2007 [10]. As part of this project, the firstturbines will be commissioned in February of 2005.

The name Scotian WindFields refers to a group of 9funds operating within defined regions in the province ofNova Scotia. These 9 funds share similar operatingcharacteristics and a brand identity. Each of theWindField funds is a separate legal entity with its owninvestors and board of directors that make decisionsregarding the energy generation assets in which itinvests. The Scotian WindFields are analogous totraditional co-operatives, in that they are rooted in thelocal communities where they are located [10].

3 The background research leading to the development of this case

was conducted in 2002 by Chad Park as part of his fulfilment of the

requirements of Applied Research on Preventative Approaches for

Environment course at the IIIEE.

The 9 companies are financed through an innovativefinancial mechanism established by the government ofNova Scotia called Community Economic DevelopmentInvestment Fund (CEDIF). Introduced in 1993, theCEDIF is a pool of capital formed through the sale ofshares or units to persons from within a defined commu-nity [11]. It was designed to assist Nova Scotia’s smallbusinesses, co-operatives and community economicdevelopment initiatives in obtaining equity financingby offering a personal income tax credit to individualsinvesting in eligible businesses [12]. Investors receivea 30% Nova Scotia provincial tax credit and theirinvestment automatically qualifies for inclusion in a self-directed Registered Retirement Savings Plan (RRSP). Ifused as a Retirement Savings Plan, contributions to theinvestment will also generate the federal RRSP taxcredit offsetting federal taxes payable, at the marginalrate. Outside the Halifax urban area, the Province ofNova Scotia guarantees 20% of the investment againstloss for the first 4 years [13]. The maximum annualinvestment for individuals is 50,000 Canadian dollars(w31,000 Euro), which yields a maximum annual taxcredit of 15,000 Canadian dollars (w9000 Euro) [12].Although there are no official limitations on who caninvest in the companies, there are limitations on who canaccrue the benefits; making Nova Scotia residentsprincipal beneficiaries of the tax credits. Thus, there isa strong implicit bias toward local investors. Thus far,most of the funds raised have come from investors in theregion where the project is located. This is expected to bethe case for all of the funds [10].

4.5. Wood pellet production in Vansbro, Sweden4

This case from Vansbro demonstrates how enhancedutilisation of biomass resources can help the sustain-ability of a local community.

Vansbro has approximately 7500 inhabitants and islocated in the mid-west of Sweden. There has been a netdecrease in population in the area, coupled withincreasing unemployment. Moreover, existing employ-ment is highly dependent on the public sector and ona small number of relatively large companies that tendto invest in improved technology rather than in people.Local businesses feel the competitive pressures and areincreasingly trying to produce more with less labourinput. Nine out of the 10 sawmills in the region went outof business in the last decade, as they could no longercompete with the larger sawmills. On the other hand,currently available jobs are characterised as havinginadequate attraction to keep people in the region.

4 The information used in this section was gathered as part of the

Strategic Environmental Development exercise conducted by IIIEE

researchers and master’s students in April 2004.

986 M. Mirata et al. / Journal of Cleaner Production 13 (2005) 981e991

More external and consolidated ownership of busi-nesses is also increasing. This undermines the autonomyof the Vansbro area and has adverse impacts on thesocial environment. For example, high levels of socialsupport that used to be provided by one of area’s majorcompanies while under local ownership, has practicallyceased, following its takeover by a multinational com-pany in 1999.

The area has an abundance of high quality forests.However, so far only a small fraction of benefits that canbe realised with the use of this important resource isretained in the region. This is closely linked to the factthat the majority of forest products are traded witha limited number of large actors outside the region.More specifically: firstly, the forest owners receive lowerprices for their products because the region is regardedas being too far from the major pulp and paper plants,giving rise to higher transportation costs. Secondly, theyhave little power to negotiate better prices since theparties they can trade with are too few in number.Furthermore, there is room for improving the way theforests are managed, thereby increasing their produc-tivity. Regular thinning activities that can lead to long-term economic gains are an example of this. Thinninghas been neglected in the past few decades as they fail todeliver profits in the short run to private owners.

Besides its forestry resources, the region has certainsocial strengths, such as the existence of a tightly knitsocial net with open communication among localpeople. There are also numerous forward looking andinnovative ideas in the community that can providesignificant benefits to the region if supported andimplemented. Nonetheless, these strengths are noteffectively utilised.

A recent development in Vansbro, where a longstanding idea fostered by a collection of local parties wasfinally turned into a real project, offers a good potentialto turn some of these negative trends around. Thisproject involves the start up of a company to produce50,000 t/y of wood pellets. Wood pellets are animportant product for which there is increasing demandin national and international markets. Conventionally,sawdust is the preferred raw material for pellet pro-duction. The supply of sawdust is likely to remain moreor less constant, however, there is increasing demand forthis material from various sectors (such as wood boardmanufacturing, district heating, etc.). Nevertheless, inthis project the production of pellets mainly relies onthe use of tree tops and other locally and regionallyavailable biomass resources, including local forestthinning residues and regionally available wood waste.Moreover, the hot condensate, a by-product of pelletproduction, will be used in a wet condensate turbine togenerate around 6.8 GWh/y of electricity [14]. Theplant will also be integrated with the local districtheating system so that the hot condensate from pellet

production will be used as a heat source for localresidents. To a lesser extent local and regional ones anddominantly national and international markets arebeing targeted as buyers of the pellets.

Currently, 9 private persons from the region hold theownership of the project. Once the plant is operationaland the uncertainty about its operation is reduced, up to20% of its shares will be offered to the local forestowners.

5. Analysis

The cases presented provide examples of productionsystems that exhibit some of the characteristics fosteredby the DE concept. They reveal important informationboth in terms of their contribution to improved regionalsustainability and in terms of the conditions supporting,or at times hindering, their development. These arefurther elaborated in the following paragraphs.

Firstly, the cases from Lahti and Enkoping demon-strate how significant efficiency gains can be realisedthrough the use of CHP units (these units can achieve upto 90% conversion efficiencies), as opposed to conven-tional condensed cycle units that can usually convertonly 30e40% of the energy contained in fuels toelectricity. These cases also demonstrate how increasedvalue addition to local resources can take place whilesimultaneously satisfying local needs by substitutinglocally available resources for those imported fromoutside the region. These developments reduce keyregional activities’ dependence on external resources andthereby, reduce their vulnerability to negative externalchanges. On the other hand, from a business perspective,the flexibility gained through access to a diversified fuelbase provides the power plants with increased economicstability. However, a vital element of both of thesecases is linked to their economic success. That is, theseplants offer competitively priced heat and electricityto consumers and retain sufficient profit margins toinvest in further research and development. Moreover,through partially sourcing their fuels from variousregional activities, they provide economic benefits toother regional activities.

The gasification unit integrated to a pulverised coalfired boiler in Lahti currently enables a total of around100,000 t/y of biomass and source separated waste to beutilised for power and heat generation. Besides di-versifying the fuel base, this development enables theplant to reduce its annual imported coal consumptionfrom 320,000 t to 270,000 t (a reduction of 15%). This iscoupled with a 10% reduction in the plant’s CO2 and SOx

emissions and between 5 and 10% reduction in NOx

emissions. Moreover, this setting provides the powerplant with a competitively priced fuel source as pro-ducing 1 MJ of output through the use of biomass and

987M. Mirata et al. / Journal of Cleaner Production 13 (2005) 981e991

waste derived fuel is around 50% cheaper than producingthe same output with coal. This is mostly due to Finnishtaxes on energy produced by fossil-fuels and subsidiesprovided for certain kinds of wood based bio-fuels [15].

Through the developments in Lahti, value is added tovarious local and regional waste streams, providingbenefits distributed to a wider range of parties. Localbusinesses benefit due to reduced waste managementcosts and in certain cases through the revenuesgenerated by their waste streams. The municipal wastemanagement company has an economically feasible andenvironmentally preferable way of dealing with waste.All these elements provide the local residents witha cleaner environment and competitively priced heat,electricity and waste management services. Through theinstallation of new gasification and CHP units, the useof an additional 250,000 t/y of biomass and fuel fromsource separated waste is planned. If realised, thisdevelopment will multiply the above stated benefits.

Another important element of Lahti case is that itdemonstrates the effects of two of the important designfactors (emphasized by Johannson et al. [1]) for DEprinciples concurrently. That is, a renewed balancebetween small and large-scale is being established, andthis is enabled through synergistically connecting smalland large-scale operations. It is important to note thatproper functioning of gasification units are highlydependent on the quality of inputs. In Finland, thisimportant issue is successfully dealt with through theintroduction of standards for waste derived fuels. Itis also important to note that proper operation of thesystem is an outcome of the collective fulfilment ofindividual responsibilities.

The case in Enkoping is unique with its element offacilitating the generation of an economically importantresource locally. The use of approximately 120,000 t/y oflocally produced Salix today constitutes 15e20% of thefuel used by Ena Kraft, thereby reducing their biomassimports from other regions. This dynamic primarilyhelps with the economic stability of both the powerplant and the farmers. Although it currently does notprovide the power plant with direct financial gains, localfarmers earn additional income. It is estimated thatadditional employment, up to an equivalent of 20 fulltime jobs, is created with such dynamics. The companyhas plans to further increase the share of locallyproduced Salix by, possibly, up to 30% [16].

In addition, the recent synergistic connections be-tween the wastewater treatment plant, the power plant,and the Salix plantations, the following benefits arerealised. By using 320,000 m3/y of treated wastewaterthat is rich in nitrogen content for irrigation purposesthe amount of nitrogen discharged to the receiving riverdecreases from 130 t/y to 48 t/y [17]. Irrigation alsoenables the reduction of time between Salix harvestsfrom 4 to 3 years. On the other hand, the use of

wastewater treatment sludge and bottom ash asfertilizers on the Salix plantations provides an econom-ically feasible and environmentally preferable way ofdealing with wastes generated by the wastewatertreatment facilities and the power plant. In the case ofthe wastewater treatment plant, this routine helps todivert all of the 1700 t/y of digested wastewater sludgefrom the landfill [17]. Another important characteristicof the developments in Enkoping is that through theincreased Salix plantation, value will be added to one ofthe area’s underutilized resources e namely the ‘‘land’’.In other words, around 200 ha of currently unutilizedland will be turned into Salix plantations and thus, willbecome productive. While the landowners will benefitthrough renting their land, growing their own Salix willprovide the power plant with economic gains. Similar tothe case in Lahti, the benefits provided by reneweddynamics in Enkoping are, and will be, shared by a widerange of local parties, including the community.

It is notable that the developments in Enkoping werestrongly influenced by the solid commitments ofvisionary local decision makers. Running the localenergy system based on 100% bio-energy was one ofmany goals of the local administration which have otheron-going projects to make the region more sustainable.Moreover, the power plant has been, and still is,supporting the Salix plantations in various ways,without realising any direct financial returns. Suchsupport is provided in the form of providing the farmerswith long-term demand guarantees at attractive prices,and by spreading soil enhancers (i.e. bottom ash) on theplantations free of charge.

It is also important to acknowledge that develop-ments in Lahti and Enkoping cases have been stronglysupported by national policy elements. Since the early1990s, both Finland and Sweden have been promotingthe development of bio-energy based energy systems, asa proactive measure for energy security triggered by theoil crises in the 1980s. The intensive R&D in the field ofbio-energy in this period has indirectly contributed toboth systems. Moreover, as part of their strategies thegovernments in both cases also provided direct financialsupport for the development of these systems (3 millionEuro out of the total investment of 12 million Euro inthe case of Lahti, and 4000 SEK (450 Euro) per kWcapacity to power plant and 5000 SEK (560 Euro) perhectare for Salix plantations were provided to Enkop-ing). Additional support for these plants’ financialviability is provided by the fact that bio-fuels (or powerproduced by bio-fuels) are exempted from taxes thatapply to fossil-fuels, and in some cases they even receiveadditional subsidies. These fiscal elements significantlysupport the economic viability of bio-energy implemen-tations in these countries (more information on relevantSwedish energy policies can be found in Ref. [9] includedin this issue).

988 M. Mirata et al. / Journal of Cleaner Production 13 (2005) 981e991

Besides partially compensating regional electricitydemands with a renewable and clean source, the mainessence of the wind farms in the Province of NovaScotia, in Canada, lies in their innovative financingmechanism. The fund and ownership schemes outlinedin this study offer an attractive solution to the crucialissue of financing the diffusion of technologies allowingthe emergence of distributed systems. The ScotianWindFields project demonstrates the feasibility of sucha concept on a regional level and sets an important rolemodel, particularly for areas where the possibilities forlocal investments have been under-utilised. With theseschemes, not only is a mechanism provided whereinitiatives with dominantly regional benefits are financedlocally, but also almost all the benefits provided by thesesystems are retained in the local communities.

On the other hand, the case from Vansbro demon-strates how adding more value to local resourcesthrough new, local initiatives can support regionalsustainability. In this case, this is to be done by turningaround 150,000 m3 (w112,000 t of dry wood) ofcurrently under-utilised forest resources and wasteconstruction wood into wood pellets for which there isa growing market. This initiative has several importantdimensions. Firstly, it will increase the capital flow tothe region and create more income. Around 50 millionSEK (w5.6 million Euro) investment will be made intothe region and the pellet production is projected to havebetween 50 and 60 million SEK (5.6e6.7 million Euro)turnover per year. This is likely to pave the road forfurther developments. Linked to this project, creation ofbetween 25 and 30 new jobs (10e15 jobs in forestry and10 in the pellet plant) is also expected [14]. With thisproject the forest owners will be paid for the top 5% ofthe trees and for the forest residues, for which theconventional buyers do not offer anything. As the forestowners sell their trees as a whole rather than sellingdifferent fractions to different customers, this willincrease their negotiation power with other conventionalbuyers who are mostly interested in timber and pulpwood. Also, linked to this is the possibility of the localpellet company buying the whole trees, parts of whichcan then be used locally to provide other added valuetimber based products. These developments will alsoprovide incentives for the forest owners to bettermaintain their forests and thereby improve productivity,as the thinnings can also be sold for pellet production.

Moreover, these benefits are likely to be sustainedbecause the projected development has operationalcharacteristics that will enforce its long-term economicand technical viability. As the supply of sawdust is at itslimits but the demand for it is increasing, its price isestimated to increase in the near future. Therefore, theuse of locally sourced alternative materials in thisproject is likely to provide competitive advantages inthe future. Another strength of the operation is

connected to the use of by-product condensate frompellet production. Instead of being wasted, the conden-sate will be used for electricity production (around6.8 GWh/y) and for district heating thereby generatingadditional revenues. This will also provide the neededcapacity expansion for district heating system at a lowercost and provide the system with extended flexibility andfinancial gains. Furthermore, the project has the noveltyfeature of using roundwood and green biomass in pelletproduction. If successful, the knowledge gained with thisinnovative initiative is likely to constitute an asset thatcan be traded in external markets for economic returns.Last but not least, the plant can enjoy close to optimumorganisational conditions for its successful operation ifthe local parties who can influence this success, areprovided with incentives to do so. Provision of suchincentives is already planned and will take place throughoffering the forest owners the opportunity to own sharesof the company that will produce the pellets.

Another important and positive aspect of the case inVansbro is linked to the ownership structure of thecompany that will produce the pellets. Regional partieswho are engaged in various regional economic activitiesdominantly own this company. Therefore, with thisownership structure, the economic returns of pelletproduction are more likely to be retained in the regionand be used for further development. On a differentaccount, the orientation of this project towards highervalue addition also increases the possibility to createhigh skill jobs, which in turn may provide more diverseand attractive employment options and encourageeducation. Collaboration within and among companiesas well as with public institutions is also important forthe desired developments to take place and for them toremain viable.

Here, we underline the fact that increased valueaddition is at least as important for private companies asit is for the region, as a whole. Vansbro region’s onlysurviving saw mill constitutes a living example of thisimportance. This company continues to maintain itseconomic viability owing mostly to its recent initiativewhere customised or further processed (e.g. painted)products, rather than solely sawn timber, is offered intheir product range.

As indicated earlier, the successful realisation of sucha project relies heavily on cooperation among regionalparties, including the forest owners, pellet production,the district heating system and the logistical operations.Although, there is open communication among regionalparties, the intensity of communication and level ofcooperation is still remarkably low. However, thissituation can be changed and the collaboration amongregional parties can be improved if a body such as thelocal municipality assumes coordination roles. This willbe a valuable exercise because, even by only focusing onthe biomass resources of the region, the gains that can

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be achieved through improved integration and co-operation can go beyond those associated with pelletsproduction. Ideas already exist in the region regardingsuch possible developments. The development scenarioenvisioned by one of region’s entrepreneurial individualsconstitutes one example of this. This scenario includesthe development of a diverse range of activities and theirsynergistic interconnection with each other, as depictedin Fig. 2. At this stage, such a scenario remains to bequalitative. However, it demands scrutiny and furtherquantitative assessments as its realisation may bringalong additional environmental, economic and socialbenefits.

6. Discussion

The examples reviewed in the previous sectionsillustrate common characteristics and some importantsuccess factors for production and consumption systemsthat could be elements of distributed economies. In thesubsequent sections we draw attention to some of theirattributes that play important roles in enabling thesuccessful development and functioning of the casesreviewed here. These are important as the evolution ofDE requires acquiring similar characteristics in a widercontext, i.e. collectively, in as many of the productionsystems building up a regional economy as desirable.

Therefore, they should be included among the factorstaken into consideration in fostering the development ofsimilar systems in other regions or sectors. In otherwords, the knowledge provided by examples, such asthose presented here, should contribute to the knowl-edge base needed to systematically assist the develop-ment of systems aligned with DE.

6.1. Flexibility

The majority of our examples illustrate the benefitsprovided by their flexibility. The dominantly bio-fuelledCHP plants and the pellet production from un-conventional raw materials have, for example, higherlevels of flexibility regarding their inputs, whichcontributes to their economic stability. The flexibilityof these systems is one of the important leverage pointsfor small producers to gain a competitive advantage.

6.2. Local commitment and collaboration

Our examples highlight that successful developmentsaligned with the DE principles are tightly linked to theideals and commitments of the people and institutionsliving and functioning in regions (see also Ref. [9] in thisissue). As local development concerns a large numberof stakeholders, it is crucial to develop a commonunderstanding regarding targeted dynamics, develop

Fig. 2. A possible scenario for future economic activities in Vansbro (redrawn after) [18].

990 M. Mirata et al. / Journal of Cleaner Production 13 (2005) 981e991

shared objectives and goals, and assure commitmentamong regional parties. Given its importance, thiselement needs to be systematically addressed. Creatingan inventory of local needs and capacities constitutesa promising first step, as the heart of the DE is theability to make the best use of a region’s assets and theability to deploy them for the satisfaction of local needs.The development of effective communication platformswhere local ideas can be shared, common objectives canbe created and collective action can be supported is alsoof prime importance.

6.3. Economic gains

Although the systems aligned with DE differ from thesystems motivated by traditional scale economies inmany aspects, they share the element of ‘‘economicprofit’’ as an important driver for their development.Thus, it is important to underline that all the examplescited are coupled with adequate economic profits. Goingbeyond sole profit generation, the cases on biomassbased energy production exhibit an improvement intheir economic performance as compared to traditionalfossil based fuels (mostly thanks to fiscal policies). Withthe anticipated increase in sawdust prices, the economicattractiveness of pellet production relying on localresources is also likely to increase.

6.4. Local ownership

In many of the reviewed cases, the local ownershipconstitutes an important factor, assisting both theimproved sustainability profile of the systems and theirsuccessful operation. This is partly due to the fact thatunder local ownership, the provision of benefits to otherlocal and regional parties is given more weight thanwhat would be allowed under traditional economicconsiderations. Conversely, another aspect is related tothe fact that under local ownership, the returns tendto be re-invested for the regions’ benefit.

There are drivers for regional sustainable develop-ment and these call for a multi-disciplinary approach fordevising and implementing effective strategies. Amongthese drivers, it is the social and environmental ones thatdeserve particular attention. This is because they tend tobe underrated in real-life decisions where economicconsiderations dominate to the detriment of small-scaledevelopments. However, through technology innovationand diffusion, the economic outlook can be turnedaround as exemplified in some of our cases. Althoughmost of the examples reviewed provide sufficienteconomic returns, it should be noted that in other cases,or sectors, the benefits of locally produced goods andservices could be linked to other values. The notion ofhigher quality of local products as compared to centrallyprovided goods and services is one that deserves

particular attention. Acceptance and valuation of thisquality aspect by the customers and the consumercommunity can both become a source for pricepremiums and provide loyal customers. Among otherthings, appreciation of the quality aspects of productsand services provided by a DE is important for helpingto offset the impacts of decreased economic transactionsacross regional boundaries due to the increased local-isation of the material flows. However, it is among DE’smain objectives to boost the local economies throughthe combination of both increased intra-regional trans-actions and increasing the share of higher value addedproducts in exports and imports.

It is not only the economics that are influenced bytechnological development, as significant changes inenterprises’ operational environments are also facilitat-ed through new technologies. In some sectors, forexample, economies of scale are no longer pursued forthe ‘‘material flows handling’’ related benefits butinstead focus on design, technology provision, andknowledge dissemination. This transition providesopportunities for innovative developments at the locallevel in the form of new local business solutions,technical systems, and ownership structures. The speedand direction of such transitions can vary amongsectors. For instance, in the traditionally slowlychanging energy sector, where the focus has been oncentralised production and distribution systems, signif-icant shares of new installations are small-scale ordecentralised. If spread and sustained, this trend maylead to considerable system changes over the next fewdecades. Recent experience has illustrated that this kindof transition is more rapid in the information andcommunications technologies (ICT) sector, and insectors that are better positioned to take advantage ofICT developments, such as the printing industry, andthe ‘‘textiles and garments’’ industry.

Decentralised technical solutions constitute a centraltheme in distributed economies. This is dominantlymotivated by the fact that currently the systems inpursuit of scale economies are likely to have developedfurther than what would be optimal. Thus, a search forfinding a better balance naturally places the primaryfocus on more decentralised solutions. However, thedecisions that support a more sustainable economicactivity require finding an optimal solution after takingthe economic, social, and environmental aspects intoconsideration. Therefore, required technological ad-vancements need to have strong, or at least adequate,economic, environmental and social performance pro-files as well as being able to allow economic activities totake place on a small-scale.

The important question regarding how to fostera development towards distributed economies still remainsto be addressed. As noted above, the promotion oftechnological developments and the diffusion of system

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solutions aimed for the local scale and markets havea considerable role to play in achieving this. Asdiscussed earlier, policy elements that support necessaryresearch and development and that employ fiscalinstruments in the form of tax relief or investmentsubsidies, are likely to play key roles. In particular, thosethat steer the economic activities towards acquiringcharacteristics aligned with DE. An additional approachthat is important in assisting the strengthening of localeconomies is to create alternative market places andmarketing channels for local products and services inareas where established markets create high barriers toentry for the local producers. Other propositions putforward by other scholars, such as local tax systems,currencies and ownership mechanisms deserve scrutinyfor their effectiveness in creating changes toward thedesired direction.

7. Conclusions

Distributed economies is an evolving concept andoffers a promising basis for discussion about sustainablelocal and regional development as well as how technical,economic, political, and social systems at the regionallevel can be constructed to support a developmentaligned with its principles. It may not be revolutionaryand is surely inspired by other streams of thought thatare designed to improve environmental and social well-being. However, besides having environmental andsocial improvements as core objectives, DE differs fromsimilar concepts by placing increased focus on theeconomic viability and business adaptability of small-scale, flexible schemes that concentrate on local valueaddition and take advantage of inter-sectoral collabo-ration. In other words, they are designed to build aninnovative business case to promote the development ofrobust systems that are better aligned with sustainabilityrequirements.

This paper has reviewed and discussed selectedproduction systems and some of their attributes thatcontribute to their desirability as elements of distributedeconomies. It also highlighted some of the factors thataffect their development and sustained operation. Acommon feature of such systems is that they have a focuson using local resources for the generation of valueadded products. This flexibility allows these systems totake advantage of a diverse range of inputs and theirviability is enhanced by collaborative linkages witha diverse range of other activities. More importantly,they provide environmental, social, and economic

benefits that are shared by a wide group of local parties.Therefore, these production systems provide usefulbuilding blocks for robust economic systems thatare closer to local people and provide a higher qualityof life e two of the main objectives of distributedeconomies.

Acknowledgements

We would like to express our gratitude to Mr HemmoTakala from Lahti Energia Oy, Mr Brian Watling fromRenewable Energy Services Ltd, Mr Eddie Johanssonfrom Ena Kraft AB, and Mr Jan Eklund from Vasterdala Bioenergy AB for their valuable contributions.

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