intelligent distribution grid: a business case as such … distribution grid: a business case as...
TRANSCRIPT
Intelligent distribution grid: a business case as such and a
business enablerRonnie Ronnie Belmans
Katholieke Universiteit Leuven, Belgium
2
Outline
• European Energy Policy • New grid challenges
Future energy demand New generation paradigm Ageing assets Market and regulation
• Smart grid vision From passive towards active grids Enabling technologies Communication New Grid Visions
• Business Models • R&D, regulation and funding
3
Outline
• European Energy Policy • New grid challenges
Future energy demand New generation paradigm Ageing assets Market and regulation
• Smart grid vision From passive towards active grids Enabling technologies Communication New Grid Visions
• Business Models • R&D, regulation and funding
4
• Three Agencies • ACER: Agency for the Cooperation of Energy Regulators • EACI: Executive Agency for Competitiveness & Innovation • ESA: Euratom Supply Agency
• Actions • Technology & Innovation (SET) • Infrastructure (EEGI) • Renewable energy (NER300) • Research (EERA, ERA Net+) • …
• Stakeholders • Industrial Partners (Eurelectric) • System Operators (e-DSO, ENTSO-E)
Directorate-General for Energy
Regulation of Monopolies
Innovation and Competitiveness
Low Prices And Efficiency
Primary Energy Sources
Reliability and Quality
Capacity
Nature Preservation
Climate Change
Kyoto and Post-Kyoto
Environment
Source: European Commission of Energy, website
5
EU 20-20-20 Goals
Reduction of greenhouse gases
Energy consumption, Efficiency increase
Share of renewable energy
-20% -20% 100%
20%
8.5%
6
CO2 neutral electric energy supply
• Generation-side – Energy efficiency
– Nuclear
– CCS
– Renewables
• Demand-side – Energy efficiency & Intelligent
consumption
• Residential
– Smart appliances
– Intelligent heating/cooling
– insulation
• Transportation
– Electric vehicles
Required paradigm shift on the demand-side
EREC: RE-thinking 2050
7
Technology & Innovation
• SET-plan – Accelerating development and deployment
of cost-effective low carbon technologies – Industrial Initiative with large scale pilot projects – Themes:
• Wind, Solar • Nuclear • CCS • Bio-energy • Green Cars • Fuel cells • Hydrogen • Smart Cities • Electricity Grids • Sustainable Energy
European Industrial Initiative
Industry
European Research
Area
Financing
EuropeanEnergy
Research Alliance
Research
European Institute of
Innovation & Technology
Education
8
Infrastructure
• The European Electricity Grid Initiative (EEGI) – Accelerating development and deployment of electricity
networks capable of handling the massive deployment of renewable and decentralised energy sources as proposed by the SET-plan
– Initiative of the System Operators (EDSO, ENTSOE)
– Theme: • Active Smart Grid
– TWENTIES, PEGASE, REALISEGRID
• New Market Rules
– OPTIMATE
• Intelligent Metering
8
of the System Operators (EDSO, ENTSOE)
Source: The European Electricity Grid initiative, Roadmap 2010-18 and Detailed Implementation Plan 2010-12, 25th May 2010 [online]
9
Renewable Energy
• NER300
– Subsidises installations of innovative renewable energy technologies and Carbon Capture and Storage
– 300 million allowances in the New Entrants’ Reserve of the European Emissions Trading Scheme
– Themes
• Innovative Renewable Energy – Biofuels, solar, wind, geothermal, hydro, ocean, ...
• Grid Integration
• Carbon Capture Storage
10
Research & Education
11
Outline
• European Energy Policy • New grid challenges
Future energy demand New generation paradigm Ageing assets Market and regulation
• Smart grid vision From passive towards active grids Enabling technologies Communication New Grid Visions
• Business Models • R&D, regulation and funding
12
New grid challenges
1. Future of energy demand
2. Generation paradigm shift
3. Ageing assets
4. Markets and regulation
13
Future of electricity demand
• Rise of consumption at 2% a year
– 1250 TWh/year extra by 2030
• Dependence on imported fuels?
• Plug-in Hybrid Electric Vehicles?
14
New generation paradigm
• Current grid = hierarchical
• One-way pipeline
– Source has no realtime info on termination points
– Peak demand reserve => inefficient use of grid
G G Generation
Transmission
Distribution Demand
Traditional one-way supply system
Supply
15
New generation paradigm
• Increasing wind generation & CHP units in Denmark
16
New generation paradigm
• Importance of wind forecasting
– Wind speed change of 1 m/s = variation of 320MW on a capacity of +-2400MW.
– Control systems needed to avoid excessive backup capacity
16
of + 2400MW.
16
“Fresh breeze” means somewhere
between 200 and 1,600 MW
17
New generation paradigm
• Future grid = distributed
– Wind and solar “farms”
– Home PV + CHP+ PHEV
Demand
Traditional one-way supply system
Generation
Bi-directional supply system
Supply G G Generation
Transmission
Distribution
G G Generation
18
New generation paradigm
Demand-pull CO2-lean energy supply needs renewable energy resources Dependency on primary energy sources Rising/fluctuating (?) fuel prices Liberalized market opportunities Energy efficiency: CHPs Subsidies, e.g. ROC
Technology-push Experience curves of PV and wind Break-even point? Although not entirely true for wind due to bottlenecks in supply chain… Electrical energy storage?
Source: IEA
Source: PhD G. Nemet
Source: IEA
PV cost
Wind generation cost
19
Ageing assets
• Lagging investments in infrastructure
– Rising demand = decreasing safety margins
Installation wave in European distribution systems in the 60s & 70s Replacement wave expected with business-as-usual approach Opportunity for new system architecture and operation schemes
20
Markets and regulation
• Energy market
• Data + information need > 20G€ investment (based on 100€ per connection)
GenCo GenCo
DistCo DistCo
Retail Retail
GenCo
TransCo
DistCo
Retail
REGULATED
21
Outline
• European Energy Policy • New grid challenges
Future energy demand New generation paradigm Ageing assets Market and regulation
• Smart grid vision From passive towards active grids Enabling technologies Communication New Grid Visions
• Business Models • R&D, regulation and funding
22
SmartGrids Vision
What is a SmartGrid?
A SmartGrid is an electricity network that can
intelligently integrate the actions of all users connected to it – generators, consumers and those that do both – in order to efficiently deliver sustainable, economic and secure electricity supplies.
European Technology Platform SmartGrids
23
SmartGrids Vision
Central & dispersed sources
Smart materials and power electronics
Smart materials
Central & dispersed intelligence
Seamless integration of new applications
End user real time Information & participation
Multi-directional ‘flows’
24
SmartGrids Vision
DSO’s
SmartGrid
Consumers Generators
DSO’s
TSO’s SmartGridSmartGridSmartGrid
Actions
Consumers
sustainable, economic and secure electricity supply
Technology
Standards Small scale generation
Regulations
Market considerations Consumer
choice
Reduced environmental impact
Security of supply
Communication
Innovation Self-healing
Energy Awareness
25
From passive towards active grids
• More electrical consumption – +1à2% per annum
• Unpredictable generation • photovoltaics (PV), wind,…
• Storage is not possible yet • battery storage, electric car batteries,…?
• Communication required
26
From passive towards active grids
• Load control – active demand management
• Easily controllable loads: heating, ventilation, airco future: also electric vehicles
• Moderately controllable loads: washing machines, dryer, dish washer, freezer,… (residential constraints!)
– besides passive demand response • awareness, different tariff schemes (e.g. real-time
pricing) • Storage control
– e.g. electric vehicles (plug-in and/or full EV) • Distributed generation control
– limiting peak PV power can allow more PV energy
27
Smart metering
• AMR – automated meter reading • AMM – automatic meter management
– AMR + dimming, shutdown, reconnection, etc. • AMI – automated meter infrastructure
– includes bidirectional communication technology
• Smart meters – AMM + real-time control
• streaming, demand response, ….
28
Flexible Consumption
Source: MoMa Modellstadt Mannheim
29
Storage
• Large scale integration renewable energy resources
– Curtailing?
– Energy Storage
• Grid services
– Peak shaving
– Voltage control
– PF correction
– Energy arbitrage Source: KULeuven - ELECTA
30
Storage
Source: Electrical Storage Association, www.electricitystorage.org
Source: Prospects for Large-Scale energy Storage In Decarbonised Power Grids; IEA; 2009
31
Installed systems
Source: Electrical Storage Association, www.electricitystorage.org
32
Storage
Source: www.consumersenergy.com
33
Electrochemical storage: batteries
Batteries
Normal
Pb
Gel VRLA
AGM VRLA
Open cell
Ni
NiCd
NiMH
NiZn
Li
LiCoO2
LiMn2O4
LiFePO4
Li4Ti5O12
Metal-air
High temperature
NaS NaNiCl
Flow-type
PSB
VRB
ZnBr
CeZn
And many many more….
34
NiCd: projects
• Golden Valley Electric Association, Fairbanks, Alaska, USA, 2001
• The BESS will automatically pick up 26 megawatts of load for 15 minutes (or 40 MW for 7 minutes) in the event of power plant or transmission line equipment failure
• There are four Ni- Cd battery strings. Each string consists of 344 series connected battery modules. The batteries are monitored with a battery monitoring system (BMS).
http://www05.abb.com/global/scot/scot232.nsf/veritydisplay/faf8b33a47f7ef21c1256d94002a24a7/$file/prs%20bess%20gvea_rev1.pdf]
35
LiFePO4: projects
• AES Energy Storage is deploying 44MW of A123’s Smart Grid Stabilization Systems (SGSS)
• Various new projects including an energy storage project in Johnson City, N.Y. The project is projected to be completed by the end of 2011.
• Until now, A123 has delivered more than 20MW of SGSS units to customers worldwide to perform frequency regulation and other ancillary services.
http://www.smartmeters.com/the-news/1131-a123-systems-partners-in-new-projects.html
36
NaS: projects
• This 34 MW system (220 MWh) has been co-developed in UK & Europe in the ’80 and ‘90s and licensed to Japan.
• It is used for storage for the nearby 51 MW Wind farm.
• A typical system of NGK Insulators, LTD. has a rated power of 2 MW and rated capacity of 12 MWh.
• The lifetime has been predicted to 15 years. • NAS systems can provide fast acting reserves, standby reserves, black
start and frequency regulation.
37
VRB: projects
• The VRB technology is commercialized by VRB Power systems http://www.vrbpower.com
• Energinet.dk, the Danish Trans-mission System Operator (TSO), owns and operates the high-voltage electric power system in Denmark, a country with roughly 25% wind power penetration.
• Energinet.dk therefore has an urgent challenge facing more and more power dispatchers – the need to optimize performance of renewable energy while ensuring system security and stability.
38
ZnBr: projects
• 200 kW/400 kWh of energy, 48 of RedFlow’s battery modules • Energy storage from a 390 kW section of the UQ 1.2MW PV array • Initial installation at UQ in mid-summer, upgrade in May 2011 to full
capacity. Operate for a 24 month demonstration phase. http://www.redflow.com.au/Files/2010%2021%2010%20UQ%20Press%20R
elease%20-%2021%20Oct%2010.pdf
39
ZnBr: projects
• TransFlow 2000
• 500 kW/2.8 MWh BESS
• Four 125kW grid-tied inverter/rectifiers and grid interconnections.
• System Controller: real-time monitoring, control, management and communication, with remote access.
• Thermal Management: active control of temperature for all system components
• PowerBlock 150
• 150 kW peak, 100 kW cont.
• 150 kWh
• http://www.premiumpower.com/
40
Communication
SmartGrids require increased Communication
Source: De Craemer, Deconinck, Analysis of the resilience of communication infrastructures on Smart Grid coordination strategies
41
Communication
o Possible communication means: – PLC: Power Line Carrier
• + no extra cabling required • - not available during certain power problems, less reliable than
other comm. means, smallband – Wired over telephone / cable infrastructure
• + very reliable • broadband when DSL or TV cable • - requires phone connection or access to cable, short distances
– Wireless mobile telephony and data (2G/3G) • - smallband (2G) + broadband (3G) • - no good coverage in cellar, availability 3G < 100%
– Wireless: radio frequency (RF) • - smallband, requires antenna infrastructure • + very reliable, good coverage
42
Communication
• Availability: fraction of time that the system is operational
• Reliability: probability to function correctly for specific time period – redundancy increases A and R – encoding & protocols enhance A and R
• Integrity: no undeserved changes • important for specific messages (data packets) • encoding can enhance integrity
• Confidentiality: no unauthorised disclosure – important for specific messages (data packets) – encryption can enhance confidentiality
43
Communication
• Copper based energy infrastructure (electricity)
• Optimized topology • Power electronic devices
• Communications layer • Requirements of speed, quality, reliability, dependability
with costs • Different communication technologies at the same time
• Software layer • Multiple software functions for normal operation: doing
locally and independently the maximum number of functions, reporting/requesting from upper level minimum possible information necessary
• Network reconfiguration • Self-healing procedures • Fault management • Forecasting, modeling & planning
44
Communication
Issue: Interruption of Communication
Source: De Craemer, Deconinck, Analysis of the resilience of communication infrastructures on Smart Grid coordination strategies
45
Grid Hierarchies
Virtual Power Plants (VPP) Flexible representation of load & generation, acting as 1 entity towards DSO/TSO
Cell concept (Denmark) Hierarchical structure in the power system in which each cell coordinates local balance (market for DG), clears fault situations and communicates with other cells in energy trading
(Source: www.fenix-project.org) (Source: Risö)
46
Public Acceptance much more than technology…
Smart Grids extend beyond networks and will embrace transport, the built environment, the behaviours and engagement of customers, and will need societal acceptance.
47
Public Acceptance much more than technology…
Smart Grids will require
Customer Acceptance and Participation in:
...Intelligent Appliances & Demand Response
...Micro-generation providing grid services
...Smart metering with 2-way communications
48
Key Challenges
• Strengthening the grid ensuring sufficient transmission capacity to interconnect energy resources, especially RES, across Europe – Moving offshore
– Integrating intermittent generation
– Preparing for electric vehicles
• Enhancing intelligence of generation, demand and most notably in the grid – Communication between millions of parties in a single market
– Developing decentralized architectures to enable smaller scale electricity supply systems to operate harmoniously
• Activating consumers, with or without their own generation, to play an active role in the operation of the system
49
Outline
• European Energy Policy • New grid challenges
Future energy demand New generation paradigm Ageing assets Market and regulation
• Smart grid vision From passive towards active grids Enabling technologies Communication New Grid Visions
• Business Models • R&D, regulation and funding
50
Roles in Business Models
Aggregator and manager of dispersed power sources
Aggregator and manager of ancillary services for local network and the grid
Manage constraints and minimise losses
Utilise smart meter data Manage asset condition / predict
failure events Intelligent demand management in
emergencies
Energy efficiency Customer overall participation Customer micro-gen types Heat networks Carrier communications
Aggregator and manager of dispersed power sourcesAggregator and manager of ancillary services for local
Grid Infeed SS
Energy Storage
Aggregator Optimiser Integrator
(Source: EON Central Networks)
New roles for Network Co’s
51
Virtual Power Plant
• Virtual Power Plant: Dispersed generation Dispersed Storage Controllable loads
• Not necessarily by physically connecting plants but by interlinking them via soft technologies (ICT)
• VPP as key delivery mechanism to provide access of DER – to energy market (commercial aggregation) – to ancillary and network management services markets
(grid aggregation)
The goal is to manage DER to provide as much services as a conventional generators
Dispersed generation Aggregated to work as a conventional power plant
52
Virtual Power Plant
• Why do we need a VPP?
Dispatchability: Aggregation creates units dispatchable by TSO (several MW) and DSO
Visibility: Aggregators can give transparency to TSO/DSO of their aggregated resources, providing real-time information
Deterministic behaviour: Adequate aggregation can perform close to conventional power plants (e.g.: Wind+CHP+DSM)
Entry of new agents: Non-network owners can create value thanks to the existing flexibility of DER and DSM
53
Virtual Power Plant
• Services of VPP
– Locally performed ancillary services
• Voltage control and reactive power supply
• Optimize grid losses, local power quality
• Local (distribution network) congestion management
• Islanded operation capacity
• System wide ancillary services
Frequency control
Active power reserve
Network restoration
54
Monitoring and control applications
• End-user management – demand response applications
• peak shaving, load shifting, usage flattening – energy management systems
• incorporate prices & external circumstances • (de)activate appliances (heat pumps, fridge, battery
chargers, ...) – remote meter reading
• Grid management – aggregating data (profiles, peaks, services, …)
– controlling grids and elements (topology, power quality, …)
55
Demand Side Management (DSM)
• Local Grid Aspects: avoid grid upgrades – Measures: - better use of grids
- reduce losses
- avoid voltage issues
• Balancing: avoid payments – Measures: - balance forecast faults for intermittent sources
• Ancillary Services: get revenues – Measures: - offer capabilities to match consumption and
generation on respective markets
Control consumption to match it with uncontrollable generation
56
Demand Side Management (DSM)
• Energy saving: most common used – Measures: - discount for energy-efficient equipments
- energy tax
- provide information about energy efficient equipments
• Load management: keeping demand as constants as possible – Measures: - different tariffs for day/ night consumption
- contractual load shedding
• Fuel shift: saving primary fuel – Measures: - promote heat pump (alternative for fuel oil/ gas
heating)
57
Impact of electric vehicles
• Impact on the electric power system – Smart integration
• Flexible load – Coordinated charging – Integrating variable/unpredictable RES: central or distributed – Integrating inflexible generation facilities
• New storage facility – Bidirectional power flows – Arbitrage between different hours
• Grid support – Delivering ancillary services
» Frequency regulation » Voltage regulation » Load leveling
– Large availability: 90 % not driving
58
Need for market models
• Significant amount of energy required
– Vehicle: energy-equivalent of 1 household/year
– Now: energy is “free” when charging
• Extensive investments required
– Charging infrastructure to be financed
– Who will pay for the energy and infrastructure?
• Payment system
– Every time when charging or periodically?
– Privacy and security of transactions
59
Eurelectric definition: different location types
Source: Eurelectric
60
Public property: 4 models (Eurelectric)
61
Integrated infrastructure
30 Fast Charge Points
3500 Public and domestic Charge Points
62
E-mobility provider
63
Outline
• European Energy Policy • New grid challenges
Future energy demand New generation paradigm Ageing assets Market and regulation
• Smart grid vision From passive towards active grids Enabling technologies Communication New Grid Visions
• Business Models • R&D, regulation and funding
64
REGULATORY ACTION
Technology – development, demonstration & proving supported by……
Standards & Open Systems
Regulatory Frameworks and Incentives
Commercial & Legal Arrangements
Connect & Collaborate
REGULATORY ACTION
NOT command & control
65
Funding options for SmartGrids
• EC Research & Development funding – Seventh Framework Programme – ERA-NET
• National Funding opportunities – Vary according to each MS (numerous)
• Regulator allowances for innovation – UK; the IFI (innovation funding initiative) and
RPZ (registered power zone) • Private Funding options
– industry
66
Funding options for SmartGrids
-500
500
1500
2500
3500
4500
5500
6500
7500
8500
9500
198
9/0
199
0/1
199
1/2
199
2/3
199
3/4
199
4/5
199
5/6
199
9/0
200
0/1
200
1/2
200
2/3
200
3/4
0ct 04 - Apr05 (IFI 1s
t 6m
ths)
200
5/6
200
6/7
Financial Year
£0
00
* Data from 1989/1990 to 2003/2004 is the collaborative spending on R&D amongst the DNOs through a single provider.
* Data from Oct 2004 - April 2005 and the last financial year (2005/2006) shows reported total IFI spend.
UK Distribution Company R&D trend • c.180 projects
• Projects are initiated by the companies
• Ofgem does not ‘approve’ each project
• Spend up to 0.5% of annual turnover (use it or lose it)
• Av. intensity is 0.27%
• Forecast benefits total €70m (NPV)
Impact of IFI Incentive
Privatisation
€9m >
€13m >
67
Funding options for SmartGrids Examples of IFI projects
Mobile Locator GIS Scada
132kV
66 or 33kV
11kV
LV Fenix Customer Interface moduleLV Automation
Redox Storage
On load tapchanger transformer
Superconducting Fault Current Limiter
Lidar scanning Hi res photography
PFT cable oil leak location
Alternative fluid Transformer
Alternative Trident line With fibre optics
Woodhouse tower Replacement
Synchronising PMR
RemoteFPI
Line Tracker & Line Sense
Intelligent Universal Transformer
1ph Regulator
Storage
Under-grounding Cable plough
On-line condition Monitoring Cables Lines & switches
Fault Level Monitor
Earthing Condition
LV Incipient Fault Programme
Autonomous Regional Network Management Autonomous Regional Network Management
Circuit Breaker condition
Network Risk Distribution State Estimator
Fibre Optic Temp Monitor Wind Farm
Gen AVC
Broadband Powerline Carrier
Vista u/g mapping
Thermal line assessment
Wood pole disposal
Recycling Excavated Material
Optimising Voltage control / Var performance of large Wind Farm
Lightning Protection
www.innovationsolutions.co.uk
68
Smart Grid Flanders
• Research Institutes
• Industrial Partners – Eandis (DSO) – Infrax (DSO) – Alcatel – Lucent (Telecom) – Belgacom (Telecom) – Telenet (Telecom) – Laborelec (Engineering) – Niko (Electronic equipment & domotica) – And many others… http://www.smartgridsflanders.be
69
Smartgrids in Flanders
EnergyVille
• EnergyVille
– A knowledge center focused on green energy and energy technology which at its start will host 200 researchers.
70
Research partners
Industrial partners
Additional steering commitee members
Linear acknowledges the Flemish Government for its support
http://www.linear-smartgrid.be
71
Future urban view