your energy (efficiency) strategy · • competitive advantage and differentiation • support...

improving the use of energy in buildings

Energy Management Summit

Your Energy (Efficiency) Strategy

4th October 2016

Dr Kerry J Mashford – CEng FIMechE

Contents

1. Why bother?

2. Building your strategy

3. How are we doing?

4. From strategy to policy

5. Inside information

6. Buildings

7. ESOS insights

8. Take aways

Why bother?

Multiple Benefits

Benefits

Energy Savings

Performance and productivity

Regulatory

Reputational

Risk reduction

Comfort and Wellbeing

Staff satisfaction

New Opportunities

Evidence and insights

• Reducing the UK energy bill & future

proofing against price volatility

• Energy efficiency gap UK £11bn - DEFRA

• Improved competitiveness to drive

business growth (CBI estimate 1% GDP)


• Energy efficiency supports a UK

market of around £18bn and

136,000 jobs (£1.8bn

exports)(DECC and CBI)

• Offers productivity benefits

(International Energy Agency)


• Long term economic health - more

secure and sustainable supply

system

• Public Spending £1 invested in

energy efficiency, tax revenue of

£1.27 (Cambridge Econometrics /

Verco 2014)


• Health and Wellbeing – Cost to

NHS of cold homes estimated at

around £1.36 billion per year

(Age UK - the cost of cold)

• Key role in meeting UK carbon

targets

Building your strategy

Headline Benefits

• Energy waste is a sign of wider organisational inefficiency

• Energy surveys of existing buildings typically identify avoided

energy costs of up 20% from no/low cost interventions

• Larger, longer term projects and whole building targets avoid

in excess of 30% energy costs

• Low carbon and renewable energy – revenue, security,

reputation

• Reducing costs now and reducing risks around future energy

cost and supply uncertainty

• Energy savings go straight onto

the bottom line, small proportion

of costs, can be large part of

profits and visible to shareholders

• 20% energy saving for many

businesses can be equivalent to

5% increase in sales

Sales Equivalent

• Reduced Electricity Demand

• Reduce Available Supply

Capacity charges (DUoS)

• Reduce Triad charges (TNUoS)

• Reduce grid consumption /

Load management – on-site

generation (conventional or

renewables) or demand

management

Capacity and Transmission charges

Plant and Production

• Reduce operating hours and costs

• Optimise plant use and increase life

• Reduced maintenance costs

• Reduce lifecycle costs

• Increased output and quality

• Improve working conditions and

productivity of staff, for example by

reducing heat from processes,

improving daylight or reducing

noise

People & Productivity

• Better lighting and more natural light –

positive impact on individual

productivity (0.7 %– 23%) (Linking Energy to Health and Productivity in the Built Environment.

Carnegie Mellon, 2003.)

• Temperature and control – performance

impact above 24oC, at 30oC - 91% of

maximum. (Meta analysis, Helsinki University, 2006)

Comfort, Health and Wellbeing

“Life Cycle Cost Analysis of Occupant

Well-being and Productivity in LEED

Offices,”

• Reduced absence, put in more

hours per person annually.

• Fewer allergic reactions, reduced

stress.

• Indoor air quality

• Daylighting

• Views to the outdoors

• Highest increases in employee

satisfaction. (Singh, A. et al. “Effects of Green Buildings on Employee Health and

Productivity” American Journal of Public Health. July 15th, 2010.)

http://www.institutebe.com/Existing-Building-Retrofits/Productivity-Gains-from-Energy-Efficiency.aspx

Staff Engagement

• Good energy management has to involve staff

across many disciplines.

• Staff involvement, decision making,

responsibility, job satisfaction, new skills and

knowledge, improved performance.

• Energy Act 2011 (MEES) - 2018

unlawful to let poor performers

(EPC F&G)

• Energy Efficiency Directive 2012

– ESOS audits

• CRC – reduced carbon costs

(£15-£18/tonne)

• Reduced CCL liabilities

• Firth Carbon Budget…..

Reducing Regulatory Risks and Burden

Asset Value

‘Green’ is increasingly expected particularly in premium markets.

Green and energy efficient buildings

attract

higher rents

higher sale price and

higher occupancy rates

“It is our view that sustainability already sits

alongside location, tenant , building size and

building quality as a key factor in real estate’s value

and performance’’

Bill Hughes: Managing Director LGP

• Demonstration of Corporate

Responsibility

• Exemplars to project brand and

meet stakeholders and customer

expectations

• Competitive advantage and

differentiation

• Support Corporate objectives –

energy might be 5% of the costs

but 100% of the carbon

Reputational Benefits

• Additional benefit typically 40% to

50% of the value of the energy

savings

• Inclusion of all relevant benefits will

build a more compelling strategy.

• Start with avoided cost and sales

equivalent – then add security,

people & performance. Add risk &

reputation; asset value and

regulation.

• For buildings work with ‘total cost of

occupancy’

Building your Energy Strategy

How are we doing?

Measuring and benchmarking

Buildings data

In theory, theory and practice are the same – in practice they aren’t!

EPC / DEC

Energy intensity vs EPC

Source : Bill Bordass based on data from Better Buildings Partnership

DECs trump EPCs… …but

Tenanted Offices

• No split between Landlord and

Tenant

• DEC shows whole building

performance, one DEC.

• Cannot show improvements (or

not) in what each control

• DECs use one benchmark for all

offices

• Many offices are ‘stuck’ at G,

cannot show improvement

Building Energy Solutions

Energy Management, Research & Training Consultancy

What do you need for a VolDEC?

• Building postcode

• Floor area

• Approximate hours of occupancy

• Annual energy use – landlord & tenant

• Data year

• Main heating fuel type

• Office type (of 4 ECON 19 c.f. 1 for DECs (TM46))

• Split of landlord and tenant energy end uses

• Now developing for shopping centres/retail

• Decide key parameters

• Gather data and create baseline

• Benchmark (VolDEC, etc.)

• Review regularly

• Track changes and compare

• Check cause and effect

• Be alert for unexpected or exceptional data

• Correlate and drill down to check

– especially less tangible

• Report findings and progress in accessible form

• Shout about your successes!

0

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Elec

tric

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Co

nsu

mp

tio

n (k

Wh

)

Time

East Office Lighting

Mon

Tue

Wed

Thu

Fri

Sat

Sun

HHD weekly profile for 10th to 16th July 2006

0

20

40

60

80

100

120

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160

180

Mon Tues Wed Thurs Fri Sat Sun

kW

h

Tracking progress

From Strategy to Policy

Making the Case

• Align with values and business

objectives

• Senior support – Board level sponsor

• Statement of commitment and

importance……. then

• Set objectives and targets

• Assign responsibilities and resources

• Schedule review and reporting

• Launch and communicate across whole

organisation

Inside information

• Operations – good housekeeping & maintenance

• Technology - enhanced plant and controls

• Behaviour – building users

• Training – enhanced skills and knowledge for staff

• Procurement – energy efficient options

• Design and retrofit – work with suppliers

Key intervention areas

Useful standards

• ISO 50001 – also satisfies ESOS (more later)

• Supporting standards to 50001 – eg. 50006 and

50047

• 50006 is about setting baselines and energy

performance indicators

• 50047 is about calculating energy savings (including

normalization) to be published this month

• 50047 ‘convened’ by NEF and drew on Energy

Efficiency Accreditation Scheme so UK practice

is embedded

• Energy surveys (technical)

• Monitoring and sub metering

• Performance testing (fabric and plant)

• Modelling - building and systems

• Walk-around audits and interviews

(behaviours, could involve students)

Tools and techniques

• Match plant operation to occupancy profiles

• Check and optimise time control and set

points

• Review with building users regularly

• Catering operations

Operations opportunities

Site Occupancy for:

Site hours Opens Closes

Monday

Tuesday

Wednesday

Thursday

Friday

Saturday

Sunday

Staff occupancy Others

Arrive Leave Arrive Leave Arrive Leave

Monday

Tuesday

Wednesday

Thursday

Friday

Saturday

Sunday

General staff Cleaners

BMS schedule

Plant ON OFF DAYS

AHU 1 - 6 24/7 Mon-Fri

08.00 00.00 Sat-Sun

Boiler plant 00.00 22.00 Mon-Wed

00.00 21.00 Thurs-Sat

OFF Sun

Chiller plant 24/7

Toilet AHU 08.00 17.00 Mon-Fri

VT radiator circuits 08.00 17.00 Mon-Fri

Basement AHU 24/7

Ground floor toilet extract 08.00 17.00 Mon-Fri

Ground floor VAV dining 24/7

Reception AHU 24/7

• Review equipment

type

• Efficiency and

performance

• Size (loading)

• Age and condition

• Control

• Alternatives – replace

or enhance

Plant and equipment

Focus and define key behaviours – culture,

communication, peer pressure

• Switch-off – Lighting, IT, other equipment

• Set points – Temperatures, (timers)

• Heat loss – Closing of doors and windows

• Reporting and action around issues and waste

• Feedback on progress

Behaviour Opportunities

Procurement Opportunities

• Wide range of performances

• Consider running costs or lifecycle – energy,

maintenance, other

• Suppliers should be able to provide running

cost information

• Sources of help – ECA Technology List

(www.eca.gov.uk), Energy Star

http://www.energystar.gov/certified-products/detail/commercial_kitchen_package?fuseaction=find_a_product.showproductgroup&pgw_code=CKP

http://www.eca.gov.uk/

Buildings

Building Performance Evaluation programme - Innovate UK

• Over 100 new build projects + 3 refurb

• 49 non-domestic buildings, 366 dwellings

• Completion and early occupation / in-use

• Energy use typically 2.5- 4.5 times predicted

Ensure your building project is not only designed green but delivered green

Save costs, energy and carbon Improve comfort

Opportunities – Design and retrofit

Common themes

• Almost no buildings fully commissioned

• Sub-meters – not functioning or understood

• BMS – training, complexity, functionality

• Controls – complexity and labelling

• Lighting – too much and inability to control

• Fabric performance – specification and build

• HVAC – integration and control of multiple systems

• Renewables – installation, operation and

maintenance

https://connect.innovateuk.org/web/building-performance-evaluation

• Identify potential performance

risks

• Eliminate any and all risks that

are ‘acccidental’ or unnecessary

• Mitigate remaining risks e.g. by

changing or defining critical aspects

• Manage residual risks by providing

guidance for future stages – attention

to detail, visual checks, testing etc.

Principles of Assured Performance

Assured Performance Process

08/03/2016 Assured Performance

- Ecobuild 2016

47

Core AimHampshire

Planning Policy

Building

RegulationsPlanning Stage Requirement Evidence Required Guidance on Issue

1

To ensure that there is someone in the

project team who is accountable for the

final energy performance of the

completed homes.

n/a n/a

Named individual from developer

appointed as 'sustainability champion'

responsible for delivering verified 'as-

built' performance and demonstrating

this to Whitehill and Bordon

Confirmation of who the sustainability

champion is and of their standing within

the developer

The sustainability champion is expected

to be the main point of contact with

W&B regarding compliance with W&B

Housing Performance Verification Policy

2

To ensure it is clear to all stakeholders

what performance indicators the

finished homes will be judged on:

• Regulated energy use

• Annual space and water heating cost

• Resultant CO2 emissions

n/a n/a

Chosen target housing performance

indicators for every plot (minimum of:

regulated energy use, space and water

heating cost and resultant CO2

emissions) must be prominently

displayed on all planning stage

information and published literature or

advertising related to the development.

Copies of planning submissions with

stated performance indicators shown.

Copies of any marketing information

published to show housing performance.

Ensuring awareness of the expected

energy performance of the homes to all

involved in their development and

delivery will help to prioritise as-built

performance as an important part of the

development process.

Ensuing wide public awareness of the

performance of the homes in W&B will

promote the sustainability credentials of

the town and empower buyers to choose

homes that will be comfortable and have

low running costs

3

To ensure that knowledge and

understanding of 'as-built' performance

gained from recent projects and

research programmes informs design

and delivery of homes in Whitehill and

Bordon

n/a n/a

Undertake a review of past experience,

from published case studies of existing

developments and ensure that the

proposed planning stage design has

been informed by earlier findings.

Show how past learning has been

incorporated into the planning stage

design - to be reviewed at a design

workshop with NEF(?)

There is a growing body of evidence that

has been published that provides useful

information that could be incorporated

into planning stage design, including

layout, in order to ensure as built

performance is delivered.

4To incorporate good practice passive

low energy design

Check if this is

covered in any way

by existing policy.

n/a

Demonstrate how each parcel of land

has been designed to provide a good

daylighting and useful solar gain into

main living areas

Demonstrate understanding of solar

access with regard to sun angle through

the year and relationship between useful

gain vs. overheating

A passive design strategy report is

required that cover both site layout and

house type designs and which

demonstrates how solar access has been

considered for every dwelling.

Solar gain can provide approximately

one third of space heating in well

designed and built homes that have a

very high quality thermal envelope.

Core AimHampshire

Planning Policy

Building

RegulationsDesign Stage Requirement Evidence Required Guidance on Issue

1




completed homes.

n/a n/a

Named individual from developer

appointed as 'sustainability champion'

responsible for delivering verified 'as-

built' performance and demonstrating

this to Whitehill and Bordon

Ongoing confirmation of who the

sustainability champion is and of their

standing within the developer

The sustainability champion is expected

to be the main point of contact with

W&B regarding compliance with W&B

Housing Performance Verification Policy

2







n/a n/a

Target housing performance indicators

for every plot (minimum of: regulated

energy use, space and water heating cost

and resultant CO2 emissions) must be

prominently displayed on all design

stage information and published

literature or advertising related to the

development.

Copies of planning submissions with














homes that will be comfortable and have

low running costs

3






Bordon

n/a n/a

Undertake a review of past experience,

from published case studies of existing

developments and ensure that the design

and detailed design has been informed

by earlier findings.

Show how past learning has been

incorporated into the design of each

dwelling, include detailing around

feature known to cause

underperformance such as thermal

bridging, air leakage, thermal bypass

etc. - to be reviewed at the design

workshop with NEF(?)

Produce log sheet of 'Design Risks'*

(These to be developed as part of WPC1)

for each house type based on details

present in each type and previous issues

that have occurred with that detail

(informed by review), and what must be

done to ensure the detail performs as

intended.




into detailed design, for example the

poor buildability of in order to ensure as

built performance is delivered.


low energy designn/a n/a

Demonstrate how each dwelling has

been designed to provide a good

daylighting and useful solar gain into

main living areas. Demonstrate

understanding of solar access with

regard to sun angle through the year and

relationship between useful gain vs.

overheating

A passive design strategy report is

required that cover both site layout and

house type designs and which

demonstrates how solar access has been

considered for every dwelling.

Solar gain can provide approximately

one third of space heating in well

designed and built homes that have a

very high quality thermal envelope.

Core AimHampshire

Planning Policy

Building

RegulationsConstruction Stage Requirement Evidence Required Guidance on Issue

1




completed homes.

n/a n/a

In addition to the named individual from

developer appointed as 'sustainability

champion' with overall responsible for

delivering verified 'as-built'

performance, an 'as-built performance

champion' should be appointed who is

based on site. The individual appointed

should have both design and site quality

control experience and be provided with

sufficient time and seniority to enforce

quality issues that impact as-built

performance.

Confirmation of who the 'sustainability

champion' and 'as-built performance

champion' are, their standing within the

developer and in the case of the latter,

that a significant portion of their job

role is to enforce as built performance.

The 'as-built performance champion' is

responsible for ensuing that the design

intent is accurately built on site and

thus the buildings have the potential to

perform as designed. For any but the

smallest site it is unlikely that this could

reasonable be added to the numerous

existing duties of the overall site

manager.

2







n/a n/a

Target housing performance indicators

for every plot (minimum of: regulated

energy use, space and water heating cost

and resultant CO2 emissions) must be

stated on all house type drawings and

marketing in relation to development

sites in the EcoTown

Copies of house type drawings with














homes that will be comfortable,

sustainable and have low running costs

3






Bordon

n/a n/a

Check that known 'construction under-

performance risks' l ist developed at the

design stage have been constructed

correctly.

Completed plot specific checklists to

confirm details constructed as per

designs




into housing designs in order to better

ensure as built performance


low energy designn/a n/a

Applicable at the planning and

design stages only


design stages only


design stages only

AS-BUILT verification of building energy performanceMeasurement Notes Sampling Rate Problems Solutions

Air tightness

Air tightness testing as part of forensic

investigation, in conjunction with

thermography and or smoke

Sample of house types in early

stages of overall delivery to

understand detailing risks in

each design

Requires completion of dwelling

including services. Potentially

time consuming

Uncalibrated blower door type

machine for depreasurising

building in oder to falut find.

Air tightness measurement

intermediate stages

Optional, only needed as part of

quality management when high

level of airtightness is required

(e.g. Passivhaus)

Time taken for testing, must be

sequenced into build

programme.

Possible use of pulse

measurement technique?

Air tightness measurement on

completion

All dwellings - standard for

speculative developers

Possible use of pulse

measurement technique?

Thermography

Themograpic survey of junction

performance

Sample of house types.

Sampling rate increased in types

with more complex detailing - in

line with risk mitigation

approach


including heating system.

Restrictions on time of day, time

of year. Possible liaison with

airtightness testing.

Themograpic survey of element

performance

Sample of homes, not house

type dependent. Reduced

sampling rate for construction

types with less risk of

underperformance (factory

manufactured panels, ICF).

Increased sampling rate for higer






Themograpic survey of services

performance

Sample of homes, not house

type type dependent. Increased

sampling rate for non standard

services (heat pumps, solar

thermal, MVHR, underfloor

heating etc.) - in line with risk

mitigation approach



Heat loss measurement

Flux testing of building elements Sample of homes, not house

type dependent. Reduced

sampling rate for construction

types with less risk of

underperformance (factory

manufactured panels, ICF)






Whole dwelling co-heating testing May only be possible for very

small sample of homes. Test

tends to show the impact of the

various contributors to the

perofrmance gap that can be

itentified by other means.

Very time consuming and

therefore expensive. Requires

completion of dwelling.



airtightness testing. Lack of

industry aggrement over

standard testing procedure.

Construction process (is this really a test?)

Photographic record of key concealed

detailing

All dwellings.

OR sample that is increased for

housetypes that require more

complex detailing.

OR required of certain junctions

were ever they occur.

verification of what is depicted

in photos - may be fine for 1 off

Passivhaus but more for an

estate of 4500 dwellings.

Develop an app for tablets

similar to those available to

DEAs for conducting energy

audits? Would help to manage

information generated.

IN-USE verification of building energy performanceMeasurement Notes Scenario 1 Scenario 2 Scenario 3 Data manipulation

Fuel Use

Gas consumption (m3,

converted into kWh)

Potentially includes space heating, water heating,

cooking. Can be used to avoid sub metering all uses

downstream of the utility meter.

Main utility meter N/A - provides direct figure

Electricity use (kWh) Potentially includes space heating, water heating,

cooking, lighting and appliances. Can be used to

avoid sub metering all uses downstream of the

utility meter.

Main utility meter N/A - provides direct figure

Energy use by application within dwelling

Space heating energy use

(kWh, deduced from ΔT and

flow if required)

Essential measurement required for comparison to

design prediction

Heater meter across boiler main

flow and return. Heat metering

of DHW energy content.

Heater meter across heat pump

main flow and return. Heat

metering of DHW energy

content.

Electricity sub meter(s) on

circuit(s) supplying direct

electric heaters

Subtract DHW energy content

from measured energy reading

on heater meter

Water heating energy use

(kWh, deduced from ΔT and

flow if required)

May be essential to measure this in order to

determine space heating energy use, depending on

services configuration. Otherwise nice to have but

largely dependent on occupancy and behaviour.

Heat meter flow component can be used to measure

DHW use.

Heater meter across rising main

and DHW output from water

heater (combi DHW feed, DHW

cylinder)


circuit(s) supplying direct

electric point of use water

heaters (e.g. electric showers)

N/A - provides direct figure.

Figures may need to be

combined to give total where

point of use heaters co-exist

with central system.

Lighting and appliance energy

use (kWh)

This should be measured because it ultimately ends

up as heat in the dwelling so should be added to

measured space heating energy use during the

heating season to determine 'real' space heating

energy use for the dwelling.


circuit(s) of interest

Deduce energy use figure by

subtracting sub metered

building services use from main

utility meter

Scenario 2 only: Subtract sub

meter(s) on heating system from

main utility meter

Ventilation system energy use

(kWh)

Electricity sub meter N/A - provides direct figure

Heating system efficiency

Overall boiler efficiency in use

(% conversion to heat)

Not essential to measure in order to verify fabric

performance but if significantly less than

manufacturers stated figures will be a contributor to

the performance gap in terms of fuel use and thus

running cost

Main utility gas meter where

boiler is only consumer of gas

Gas sub meter on boiler where

gas cooking / fire is used

Calculate ratio of boiler heat

energy output (heat meters) to

energy content of gas supplied

to boiler.

Overall heat pump efficiency in

use (% conversion to heat)

Not essential to measure in order to verify fabric

performance but found to be significantly less than

manufacturers stated figures in EST study - will be a

contributor to the performance gap in terms of fuel

use and thus running cost. Should be confirmed as

measure of installation / commissioning quality

Electricity sub meter on

monoblock heat pump system

Electricity sub meters on all

components of split heat pump

system including immersion

heaters

Calculate ratio of total system

heat energy output (heat

meters) to electrical energy

supplied to system.

Renewable energy system contribution

Electricity generation (kWh) Main utility generation meter for

FIT

Built in system generation meter N/A - provides direct figure

Heat generation (kWh,

deduced from ΔT and flow)

Heater meter across heat

generator flow and return

N/A - provides direct figure

Internal environmental conditions

Internal temperature (°C) Essential to measure in order to normalise measured

space heating energy use back to a standard set

point temperature. Ideally need an indication that

temperature in dwelling is reasonably uniform, i.e.

multiple loggers.

One or more temperature

loggers, initially in the room

containing (main) heating

system thermostat


Internal Relative Humidity (RH,

%)

Proxy for ventilation strategy (system) performance

and indoor air quality.

One or more RH loggers, initially

outside rooms where moisture is

generated


Internal CO2 concentration

(ppm)

Proxy for ventilation strategy (system) performance

and indoor air quality.

One or more loggers, initially

living rooms, then bedrooms


Window and door opening (%

of time, hours)

Required to identify additional ventilation losses

caused by occupant behaviour.

Sensors on each window and

door

N/A - provides direct data

Mechanical ventilation system

flow rates (m3/hour)

Required to identify ventilation losses so that they

can be separated from fabric losses and verify

performance of the system.

High end systems can confirm

flow rate, otherwise difficult to

measure and may need to be

taken as commissioned flow

rates

N/A - provides direct data

External environmental conditions

External temperature (°C) Essential to measure in order to normalise measured

space heating energy use back to a standard set of

climate data.

Single temperature logger. N/A - provides direct figure

External Relative Humidity (RH,

%)

Can be used to explain internal RH under certain

conditions.

Single RH logger. N/A - provides direct figure

Solar radiation (hours) Can be very site specific, useful to determine likely

level of passive heating and the reasons for

overheating.

ESOS insights

The power of ESOS?

• Across just 12 organisations as lead

assessor, NEF identified energy savings

totalling 30 GWh per year, the

equivalent of £2.9 million avoided costs

for fuel and utility bills.

• At one commercial site with an onsite combined heat and

power plant, power was being used, but heat dumped to

atmosphere. Simultaneously energy was used to heat water

for an industrial washing facility and there was no space

heating. The solution was to re-engineer the systems to

provide space heating and deliver low-carbon pre-heating for

the industrial washing facility. Together, these two solutions

are set to save £40,000 and 1.7 GWh per year.

ESOS insights 1-6

1. Stimulates positive engagement

2. Improves energy-use record keeping.

3. Improves energy awareness, and visibility of energy

consumption helps identify energy-saving opportunities.

4. Major energy-saving opportunities identified through

behaviour change initiatives in both buildings and transport

5. Major energy efficiency improvements can be achieved

through modernising the technology used to monitor and

control energy, especially in areas of high energy demand.

6. Energy management behaviour could be improved in all the

buildings we audited.

ESOS insights 7-12

7. All organisations could improve the support they provided to

their staff through awareness and training initiatives.

8. Lighting upgrades and boiler replacements reduced lighting

and heating demand by 25-50%.

9. Fuel card systems provide transport energy consumption data

easily, and driver fuel-use data makes it easier to undertake

behaviour-change programmes.

10.Benefits of ESOS compliance will be in the number and value

of energy saving opportunities that are actually implemented.

11.Act on opportunities early - why wait?

12.Anticipate next audit and use to drive and structure actions

and evidence.

ESOS tips 1-6

1. Transport energy costs often outweigh office energy.

Managing logistics, i.e. reducing journey lengths required,

seems to be the most effective way of making savings.

2. Need good data – develop a simple robust data measuring

strategy – can’t manage what you don’t measure

3. Half-hourly data helps to identify overnight loads

4. Sub-metering helps to identify significant load profiles

5. LED lighting is a no brainer

6. Maximise use of daylight, lighting control and PIR

ESOS tips 7-13

7. Be HVAC wise – avoid AC units competing in the same

space

8. Avoid windows being open and AC on

9. Review HVAC arrangements after office restructuring

10.Bring people together to avoid surplus space heating

11.Set server rooms to 24°C

12.Make warehouses ambient

13.Use radiant spot heating where necessary in warehouses

Take aways

• Remember – your energy efficiency strategy is your energy

strategy and is an integral component of your overall

business strategy

• Develop and communicate your strategy in business

relevant terms

• Gather evidence to help baseline, benchmark, track and

demonstrate progress

• Use standards, regulation and external expertise, recruit

colleagues formally and informally

• Make a positive contribution to your business – across

multiple metrics.

Thank you for attending

Have a safe journey home

[email protected]

www.nef.org.uk

@TheNEF

http://www.nef.org.uk/

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