CTV034

7/30/2019 CTV034

1/19

Management guide

Better businessguide to energysavingIntroducing measures to help organisations save carbon

enter

7/30/2019 CTV034

2/19

2Better business guide to energy saving

This guide shows how to identiy measures where

energy and cost savings can be easily made with

little or no cost.

It is designed or use by anyone new to carbon saving

(especially in smaller businesses) and recognises that

not everyone has the time or resources to undertake

a ull carbon management programme.

This guide can be used on its own or as an introduction

to the many sector and technology specic publications

in the Carbon Trusts library. Free publications can

be downloaded rom www.carbotrust.co.uk/

publicatios, or ordered rom the advice line on

0800 085 2005.

A 20% cut in energy costs

represents the same bottom

line beneft as a 5% increase

in sales in many businesses

Introduction

Most businesses could use a lot less energy. Experience shows that even low and no-costactions can usually reduce energy costs by at least 10% and produce quick returns.

Did you know?

60% o UK mploys ow say it s importat

to work or a compay that has a activ policy

to rduc its carbo missios. Th survy

was coductd amogst 1,217 mploys

across th UK by YouGov rom 31st Jauary

5th Fbruary 2007.

MenU

help
http://www.carbontrust.co.uk/publicationshttp://www.carbontrust.co.uk/publicationshttp://www.carbontrust.co.uk/publicationshttp://www.carbontrust.co.uk/publications

7/30/2019 CTV034

3/19


To identiy where energy savings can be achieved,

it is essential to start by looking at how energy is

currently being used. Conducting a walk round

with a checklist will identiy:

What is happening on the ground

Wasteul energy use

Opportunities or savings.

It will also demonstrate a commitment to

improving energy perormance.

The areas to look at on a walk round are heating,

lighting, oce equipment and, i applicable, actory

and warehouse equipment. The checklist opposite

is a useul guide, and the sections that ollow give

more inormation on what to look or.

As the pattern o energy use will dier throughout the

day, it is useul to conduct a series o walk rounds and

to vary the times that they are carried out, or example:

When the cleaners are on duty

At lunchtime

At night or over weekends

At a time when you would expect to be

using little or no energy.

Varying the times o walk rounds will provide a better

picture o when and where energy might be beingwasted. It is helpul to plan uture walk rounds or dates

such as when the clocks change and at the beginning

and end o the heating season. This will ensure that

controls are set correctly or the time o year. Key

members o sta can and should get involved with walk

rounds, both to help identiy problems and opportunities

and to ensure they eel part o the process.

It is important to prioritise energy saving actions once

they have been identied, rather than expecting to

do everything at once. Usually, those with the biggest

savings potential or least disruption to the business

will decide this. In some cases the savings are easy

to identiy and calculate; this guide should help you

to estimate the potential savings o many o the

common improvements. Where the savings are

more dicult to calculate, contact the Carbon Trust

(details can be ound inside the back cover).

Carrying out an energy wak round

Conducting regular housekeeping walk rounds and noting down and acting on any maintenanceissues can identiy opportunities or energy savings and avoid expensive problems later on.

Carbon surveys

Th Carbo Trust ors carbo survys

through its twork o cosultats.

Thy ca provid hlp through a visit to your

prmiss, or ovr th tlpho. Call us o

0800 085 2005 or mor iormatio or go to

www.carbotrust.co.uk/rsurvy.

Exampleenergywalk round

checklist

03Betterbusiness guide to energy saving

Example energy walk round checklist

Date o energy walk round: CheckedFurtheraction

needed y/n

Heating (see page 4)

Are there sta complaints about the t emperature?

Have heaters/boilers been serviced in the last 12 months?

Are portable heaters being used?

Are heaters and airconditioning units operating in the same space?

How is hot waterprovided?

Do all areas have the same heating requirements?

Is the roomthermostat working and set to the correct temperature?

Are the timers working and on the correct settings?

Are otherheating controls working and on the correct settings?

Are there obstructions in ront o radiators orheaters?

How are extractorans controlled (e.g. in toilets)?

Are windows and doors open when heating orair conditioning is on?

Are there any cold draughts coming romwindows or doors?

Lighting (see page 7)

Are lights switched o (is daylight sucient/roomnot in use)?

Are any old large diameterfuorescent tube lights still in use?

Are lamps, ttings and roofights clean?

Are traditional tungsten light bulbs still in use?

Are light switches arranged conveniently and labelled?

Is exteriorlighting switched o when not needed?

In the ofce (see page 10)

Have computers got built-in energy saving eatures and are they activated?

Are computers let on overnight?

Are monitors switched o when not in use?

Are photocopiers located in airconditioned areas?

Are printers and photocopiers let on overnight/at weekends?

Are vending machines/watercoolers let on all the time?

In the actory/warehouse (see page 12)

Are pumps/ans/compressed airswitched o when the equipment they serve

is not in use?

Do you hearcompressed airleaks?

Are rerigeration units being run eciently?

Dowload

MenU

help
http://www.carbontrust.co.uk/freesurveyhttp://www.carbontrust.co.uk/freesurvey

7/30/2019 CTV034

4/19


Overheating is oten the result o heating areas that

do not need to be warmed (such as storage areas or

corridors) to the same temperature as those that do,

such as occupied areas. Overheating can also be the

result o poor control o heating systems.

Preventing as much heat loss as possible through

improving insulation and draught control can also

signicantly reduce heating bills.

Key areas and issues to look out or when

carrying out an energy walk round, are:

Equipment and heat usage

When were the heaters or boilers last serviced?

Heating costs can increase by 30% or more i the

boiler is poorly operated or maintained. Ensure

they are serviced at least annually and adjusted

or optimum eciency. More inormation can be

ound in theCarbon Trust technology overviews

Low tmpratur hot watr boilrs (CTV008) and

Stam ad high tmpratur boilrs (CTV018).

Is there evidence o use o portable heaters?

Portable electric heaters are expensive to run.

I portable heaters have to be used, install a simple

time switch so they turn themselves o ater a

designated period, or instance 30 minutes.

Are there heaters and air conditioning units

operating simultaneously in the same space?

Simultaneous heating and cooling o a space is

commonplace and wastes a lot o money. Set a

dead band o 5C between heating and cooling,

to avoid this happening.

Heating costs rise

by about 8% or every

1C o overheating

Heating

Heating typically accounts or about hal o the energy used in oces and orms a signicantproportion o energy use in other areas o a business. It is a key area to target with energy saving

measures. Many businesses are overheated which can cause discomort and wastes money.

Further inormation

Th Carbo Trust has a broad rag o

publicatios o savig rgy aimd at all

lvls o xpric. Cotact th Carbo Trusto 0800 085 2005 or urthr dtails or visit

www.carbotrust.co.uk/publicatios

MenU

help
http://www.carbontrust.co.uk/Publications/pages/publicationdetail.aspx?id=CTV008http://www.carbontrust.co.uk/Publications/pages/publicationdetail.aspx?id=CTV018http://www.carbontrust.co.uk/publicationshttp://www.carbontrust.co.uk/publicationshttp://www.carbontrust.co.uk/Publications/pages/publicationdetail.aspx?id=CTV018http://www.carbontrust.co.uk/Publications/pages/publicationdetail.aspx?id=CTV008

7/30/2019 CTV034

5/19


How is the hot water provided?

Consider installing local instantaneous water heaters

where small quantities o hot water are required

a long way rom the main heating plant. This may

also allow the main boiler to be switched o in

the summer.

Insulate all hot water tanks, boilers, valves and

pipework unless they provide useul heat to

occupied spaces.

Do all areas have the same heating requirements?

Consider heating the building in zones to allow

heating to be adjusted or each area. Areas such as

storerooms and corridors, or areas where there is

a high level o physical activity, require less heat.

Warehouses are sometimes heated in an

attempt to reduce humidity and maintain product

quality, but warm air can oten hold more moisture

than cold air and heating may actually increase

humidity. Dehumidication can be more ecient

or this purpose.

Remember the eect o sunlight are you heating

areas that are already warmed by the sun?

Controls and timing

Are thermostats correctly set?

Thermostats should generally be set at

19-20C or heating.

Install thermostatic radiator valves where possible

to provide local control o radiators and make sure

they are used correctly.

Are thermostats placed in the correct locations

away rom draughts and direct sunlight and at a

distance rom any heating sources?

Zone controls allow heating or cooling o dierent

parts o a building at dierent times and dierent

temperatures according to occupants needs.

Are time controls correctly set?

Does heating come on only when needed?

Control heating using seven-day timers to

allow it to be turned o or down during regular

unoccupied periods.

Money can be saved by adjusting any preheat

period in the morning to match weather conditions.

Controls are available that can do this automatically.

How are extract ans, or example in

toilets, controlled?

Fans let running extract warm air and waste

money consider tting time switches or

occupancy detectors.

Interest ree loans

ergy-ecicy Loas rom th Carbo Trust

ar a cost ctiv way to rplac or upgrad

your xistig quipmt with a mor rgy

cit vrsio. Busisss ca borrow

rom 3,000 to 100,000* o a uscurd,

itrst-r loa payabl ovr a priod o

up to our yars. Thr ar o arragmt

s ad applyig is straightorward. Go to

www.carbotrust.co.uk/loas to s i

you qualiy.

*Subject to eligibilit y. Regional variations apply.

Further inormation

Technology overviews

Hatig, vtilatio ad air

coditioig (CTV003)

Low tmpratur hot watr boilrs (CTV008)

Technology guides

Hatig cotrol (CTG002)

Stam ad high tmpratur hot

watr boilrs (CTV018)

MenU

help
http://www.carbontrust.co.uk/loanshttp://www.carbontrust.co.uk/Publications/pages/publicationdetail.aspx?id=CTV003http://www.carbontrust.co.uk/Publications/pages/publicationdetail.aspx?id=CTV003http://www.carbontrust.co.uk/Publications/pages/publicationdetail.aspx?id=CTV008http://www.carbontrust.co.uk/Publications/pages/publicationdetail.aspx?id=CTG002http://www.carbontrust.co.uk/Publications/pages/publicationdetail.aspx?id=CTV018http://www.carbontrust.co.uk/Publications/pages/publicationdetail.aspx?id=CTV018http://www.carbontrust.co.uk/Publications/pages/publicationdetail.aspx?id=CTV018http://www.carbontrust.co.uk/Publications/pages/publicationdetail.aspx?id=CTV018http://www.carbontrust.co.uk/Publications/pages/publicationdetail.aspx?id=CTG002http://www.carbontrust.co.uk/Publications/pages/publicationdetail.aspx?id=CTV008http://www.carbontrust.co.uk/Publications/pages/publicationdetail.aspx?id=CTV003http://www.carbontrust.co.uk/Publications/pages/publicationdetail.aspx?id=CTV003http://www.carbontrust.co.uk/loans

7/30/2019 CTV034

6/19


Case StudyBirmingham Hippodrome

Birmigham Hippodrom is o o th largstrcivig vus i th coutry, with a 1,887 sat

mai auditorium, a 206 sat studio thatr ad

rst class studio spac, corc ad hospitality

acilitis. Howvr, hatig ad vtilatig th

thatr had rsultd i high rgy bills o aroud

35,000 pr yar or th Mai Auditorium.

eagr to d a way to rduc costs, th

Birmigham Hippodrom Thatr Trust applid

or a rgy cicy itrst r loa rom

th Carbo Trust. Th loa abld th trust

to t variabl spd drivs to th ucotrolld

as i th Mai Auditorium ad to th hatig

ad chilld watr pumps o th prst hatig

ad vtilatig systm, which was ovrsizd

or ormal duty. Th proposd chags will

abl th damprs o th mai auditorium

air hadlig uits to b ully opd to icras

th ovrall cicy o th xistig systm,

thus rducig rgy usag.

Although th cost o th projct was arly

60,000, th Birmigham Hippodrom should

rduc its rgy xpditur by mor tha

17,500 pr yar. Basd o ths yarly rgy

savigs, th iitial loa rom th Carbo Trust will

pay or itsl i lss tha our yars, ad all urthr

savigs o th compays rgy bill will go

dirctly to th bottom li.

Draughts and avoiding heat loss

Are windows and doors let open during

the heating season?

Windows are oten opened because rooms

are too hot.

Instead o opening windows, turn down thermostats

a little until a comortable temperature is reached.

Use promotional material and sta meetings to

raise sta awareness. Posters and stickers are

available rom the Carbon Trust (see inside back

cover or details).

Are there cold draughts coming rom

windows and doors?

Draughts are not only a cause o complaint

and discomort, but waste money.

Fit draughtstrips and seal up windows and

doors that are no longer used.

Further inormation

S th Hatig cotrol tchology guid

(CTG002) or urthr guidac o

rcommdd tmpraturs.

MenU

help
http://www.carbontrust.co.uk/Publications/pages/publicationdetail.aspx?id=CTG002http://www.carbontrust.co.uk/Publications/pages/publicationdetail.aspx?id=CTG002http://www.carbontrust.co.uk/Publications/pages/publicationdetail.aspx?id=CTG002http://www.carbontrust.co.uk/Publications/pages/publicationdetail.aspx?id=CTG002

7/30/2019 CTV034

7/19


Key areas and issues you should look out or when

carrying out an energy walk round are:

What type o fuorescent tubes are in use?

Slimline fuorescent tubes (26mm diameter) use

10% less electricity and are cheaper to buy thanthe older 38mm tubes.

Installing new high requency fuorescent lighting

eliminates ficker and hum, extends lamp lie and

can oten reduce consumption by around 25%.

Are lamps, ttings and roofights clean?

Dirty shades and roofights greatly reduce

lighting levels.

Are standard (tungsten) light bulbs

still being used?

These bulbs are very expensive to run or long

periods and produce more heat than light!

Replace standard light bulbs with more ecient

compact fuorescent bulbs they have a longer lie,

lower maintenance costs and use up to 75% less energy.

Task lighting is a good way to minimise the amount

o electric light being used, by lighting just the

working area to a higher level and providing

background lighting at a lower level or the rest o

the space. The use o task lighting can also reduce

glare on computer screens making it morecomortable or employees.

Lighting in a typical ofce costs

about 3/m2 annually, but in the most

efcient ofce only costs about 1/m2

lighting

There are many simple and inexpensive ways to reduce the energy consumption and costsassociated with lighting without compromising health and saety or comort levels.

Did you know?

Fluorsct tubs us oly a w scods worth

o powr i start up thror, it is always

bttr to switch thm o wh lavig a room.

Top tip

Baks o lights ar ot cotrolld by a

sigl switch. Cosidr istallig mor

switchs or pullcord switchs to improv

cotrol o idividual ttigs.

Further inormation

Lightig tchology ovrviw (CTV021)

MenU

help
http://www.carbontrust.co.uk/Publications/pages/publicationdetail.aspx?id=CTV021http://www.carbontrust.co.uk/Publications/pages/publicationdetail.aspx?id=CTV021

7/30/2019 CTV034

8/19


Is the exterior lighting always switched

o when it is not needed?

Exterior lighting should be limited to the

hours o darkness.

It may not be necessary to have lights on

continuously throughout the night. Consider

tting lighting controls to limit hours o use.

Are lights switched o when the premises

are not occupied?

A lot o energy is wasted when unnecessary

lights are let on out o hours.

Carry out an out-o-hours check to see i

this is a problem.

Make sta responsible or switching o the lights.

Posters and stickers are available rom the

Carbon Trust to raise awareness amongst sta

(see the inside back cover or details).

Case StudyHenderson Group

Th Hdrso Group has workd with thCarbo Trust to gt a bttr udrstadig

o its rgy cosumptio ad rduc its carbo

missios. Th compay ows th SPAR,

eUROSPAR, VIVO ad VIVOXTRA rachiss

i northr Irlad, supplyig almost 400 stors

across th provic ad owig ad opratig

60 stors through its Hdrso Rtail divisio.

Hdrso Group Proprty, th groups proprty

dvlopmt rm, is a spcialist i th acquisitio

ad dvlopmt o rtail outlts, particularly ptrolorcourts ad ighbourhood rtail schms.

Carbo survys idtid that lightig ad

rrigratio wr th two mai sourcs o rgy

us. Th compay has ow pilotd a rag o

dirt rgy cit lightig systm solutios,

icludig chags to lightig systm dsig,

upgradig lamps ad lumiaris, as wll as

appropriat automatic cotrols. Th pilot projctshav dlivrd prov savigs o approximatly

2,200 pr aum or ach lightig systm i a

typical stor. Stor apparac ad lightig lvls

hav also b improvd, ad with payback

priods o lss tha a yar, th group ow itds

to roll out th modicatios across all its stors.

Mark Adrai, Proprty Dirctor said: Giv th

cotiual icras i rgy costs, w hav

mad a coscious ort to rduc our rgy

cosumptio ad carbo missios. With th

support o th Carbo Trust ad th coclusiv

digs o th rgy audits, w hav b abl

to implmt rgy cit corporat

rrigratio ad lightig spcicatios which

satisy our objctivs ad provid a hacd

rtail viromt at rducd opratig costs.

MenU

help

7/30/2019 CTV034

9/19


Make sure that the most ecient type o lighting

is installed. The ollowing table shows dierent

types o bulbs and whether there might be a more

ecient alternative.

*Take care when tungsten light bulbs are used as task lighting or m achinery in workshops. Replacing them wit h energy saving bulbs can cause a str oboscopiceect, so tungsten bulbs can sometimes be the saest option. An alternative is to use a compact fuorescent tting with high-requency electronic control gearwhich eliminates the stroboscopic eect.

Existing lamp type Energy-ecient option Energy saving benets

Stadard (tugst)light bulbs

Replace with energy saving

compact fuorescent bulbs in

the same tting*

75% energy saving plus

longer lamp lie

38mm (T12)fuorsct tubs iswitch-start ttigs

Replace with equivalent 26mm

(T8) fuorescent tubes o lower

wattage

8% energy saving plus

longer lamp lie

High wattag lamtlamps or tugsthalog lamps asusd i foodlights

Replace with high-pressure

sodium or metal halide lighting

65-75% energy saving plus

longer lamp lie

Mais voltagrfctor lamps,lamt spot adfood typs

Replace with low-voltage

tungsten halogen lighting or

metal halide discharge lighting

30-80% energy saving

or equivalent lighting

perormance

Fluorsct ttigswith th old 2t 40W,ad 8t 125Wfuorsct lamps

Replace with modern, ecient

ttings using refectors/louvres

or ecient prismatic controllers

with high-requency electronic

or low-loss control gear and

triphosphor lamps

30-45% energy saving with

much improved lighting

quality. The use o high-

requency electronic control

gear eliminates ficker, hum

and stroboscopic eect

Fluorsct ttigswith opal diusrs orprismatic cotrollrswhich arprmatlydiscolourd

Replace with new prismatic

controllers or replace complete

ttings as above

No reduction in energy

consumption but increases

the amount o light by

between 30% and 60%

Did you know?

It is possibl to cut your lightig costs by

up to 30% by implmtig rgy savig

masurs outlid i this ovrviw.

Lightig a typical oc ovright wasts

ough rgy to hat watr or 1,000

cups o ta.

MenU

help

7/30/2019 CTV034

10/19


Apart rom heating and lighting savings, energy

consumption in oces can be reduced by looking

at the way equipment is used.

In an air conditioned oce it can take hal as

much energy again to remove the heat generated

by oce equipment as it takes to run the equipment

in the rst place.

Have the computers got in-built energy

saving eatures?

The best known energy label or oce equipment

is the Energy Star rating, whereby equipment

automatically enters a low power mode ater a

preset amount o time.

However, these savings can only be achieved i theenergy management sotware has been enabled.

Screensavers do not save energy. They only

save the screen image rom burning in when

the image does not change or a long period.

Are computers let on overnight?

By switching computers o at nights and

weekends, rather than leaving them running,

their energy consumption can be reduced

by 75%per year.

I the monitor is also turned o when not being

used (including lunchtimes, etc), and the standby

options are activated, energy consumption can be

reduced by 90% per year.

Are photocopiers located in air-conditioned areas?

Place photocopiers in areas that are naturally

ventilated where possible. This will help avoid

any air conditioning plant having to compensate

or the associated heat gains.

Run copies in batches to reduce the amount o

time the machines are running in idling mode beore

and ater use. This will allow machines to remain in

power save mode or a higher proportion o the day.

A photocopier let on overnight uses enough

energy to make over 5,000 A4 copies.

On average, 20% o the total

energy bill in commercial ofces

is accounted or by ofce equipment

about hal o this use stems rom

PCs and monitors

In the ofce

Businesses rely on a range o oce equipment. From computers and photocopiers to teleconerenceacilities, these items have become integral to daily activity. However, it is not always appreciated

how much this equipment can cost a company.

MenU

help

7/30/2019 CTV034

11/19


Is other oce equipment let on unnecessarily?

Activate energy saving mode where available

on printers and ax machines, as this will allow

the machine to automatically power-down ater

a set time period.

By switching laser printers o in the evenings

and at weekends, energy consumption can be

reduced by 75%.

Dont orget to switch o cold drink vending machines

and water coolers overnight and at weekends too.

Install a plug-in seven-day timer to reduce the likelihood

o machines being let on out o hours. These can be

bought or a ew pounds rom most DIY stores.

Consult your manuacturer or advice.

Check what equipment is being used in the oce

kitchen: old kettles, tea urns, or rerigerators tend to

be less ecient than newer models it could be worth

investing in a new, energy ecient appliance to improve

perormance and save money in the long run.

Did you know?

A computr ad fatscr moitor lt o 24

hours a day will cost aroud 50 a yar.

Switchig thm o out o hours ad ablig

stadby aturs could rduc this to lss tha

15 a yar ad prolog th lispa o quipmt.

Further inormation

For mor dtaild iormatio o oc

quipmt ad or oc-basd compais,

s th Carbo Trust Oc quipmt

tchology ovrviw (CTV005) ad Oc

basd compais sctor ovrviw (CTV007)

MenU

help
http://www.carbontrust.co.uk/Publications/pages/publicationdetail.aspx?id=CTV005http://www.carbontrust.co.uk/Publications/pages/publicationdetail.aspx?id=CTV005http://www.carbontrust.co.uk/Publications/pages/publicationdetail.aspx?id=CTV007http://www.carbontrust.co.uk/Publications/pages/publicationdetail.aspx?id=CTV007http://www.carbontrust.co.uk/Publications/pages/publicationdetail.aspx?id=CTV007http://www.carbontrust.co.uk/Publications/pages/publicationdetail.aspx?id=CTV007http://www.carbontrust.co.uk/Publications/pages/publicationdetail.aspx?id=CTV005http://www.carbontrust.co.uk/Publications/pages/publicationdetail.aspx?id=CTV005

7/30/2019 CTV034

12/19


Compressed air

Is the system leaking?

Check or wasteul leaks in the compressed air

system (30-50% leakage is not uncommon) and

repair them immediately this simple measure

could produce dramatic savings.

It is easiest to check or leaks during quiet periods

when there is no demand or air.

Does the compressor run when not needed?

Many actories run their compressor or most o

the day, even when compressed air is not needed,

and are unaware o how much this is costing them

encourage sta to switch the compressor o

when not in use.

Electrical equipment

Is equipment let running when it is not

being used?

Conveyor systems, machine tools and other

equipment should be switched o when not in use.

Are Higher Eciency Motors tted?

Higher Eciency Motors now cost no more than

normal ones and can save 3-5% o the running cost.

Are Variable Speed Drives (VSDs) tted

to equipment?

In many cases, using a VSD to reduce the speed o a

pump or an by just 20% can halve its running cost.

In the actory/warehouse

There are some excellent opportunities or energy saving that can be made on the actory fooror in the warehouse. The exact equipment used and the processes will be unique to each business,

however it is possible to highlight a ew common areas in which opportunities can oten be ound.

Tax incentives

ehacd Capital Allowacs (eCAs) abl

busisss to buy rgy cit quipmt

usig a 100% rat o tax allowac i th yar

o purchas. Busisss ca claim this

allowac o th ivstmt valu o rgy

cit quipmt, i it is o th ergy

Tchology List. Th procdur or claimig

a eCA is th sam as or ay othr capital

allowac. For urthr iormatio plas visit

www.ca.gov.ukor call th Carbo Trust o

0800 085 2005.

MenU

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

7/30/2019 CTV034

13/19


Rerigeration

Are the seals on rerigerated areas/equipment

in good condition?

Replacing worn or damaged seals can

drastically reduce rerigeration costs.

Make sure that doors to rerigerated areas

are being kept closed.

I doors to rerigerated areas are let open,

even or short periods, costs can rise signicantly.

Are the doors adequate to prevent warmer air

entering the chilled space?

Is the rerigeration equipment well maintained?Badly maintained chiller plant will increase

energy consumption.

Are chiller units ree o ice build-up and

are they regularly serviced?

Is the chiller outlet ree o debris and blockages?

Motors can consume their

purchase price in energy

costs in just a ew weeks!

Case studyAAC Cyroma

Oxordshir basd mauacturr AAC Cyromawas icurrig rgy costs o mor tha 19,000

pr yar, much o which was big spt o

lctricity. eagr to rduc costs, th compay

applid or a itrst-r Carbo Trust loa

to rplac thr xd spd air comprssors

with o, mor rgy cit variabl spd

omprssor, which could supply th tir actory.

Although th ovrall cost o th projct

was mor tha 29,000, th rplacmt o th

quipmt will rsult i th rductio o AAC

Cyromas rgy xpditur by arly 7,000

pr yar. Basd o ths aual rgy savigs,

th payback priod or th Carbo Trust loa is

approximatly our ad a hal yars. All urthr

savigs will th go dirctly to th bot tom li.

Th compay will also rduc its CO2 missios

by mor tha 77,000 kg pr yar.

Further inormation


Rrigratio (CTV002)

Motors ad drivs (CTV016)

Comprssd air (CTV017)

Sector overviews

High tmpratur idustry (CTV011)

Chmicals sctor (CTV012)

Food ad drik procssig (CTV004)

Mauacturig (CTV015)

MenU

help
http://www.carbontrust.co.uk/Publications/pages/publicationdetail.aspx?id=CTV002http://www.carbontrust.co.uk/Publications/pages/publicationdetail.aspx?id=CTV016http://www.carbontrust.co.uk/Publications/pages/publicationdetail.aspx?id=CTV017http://www.carbontrust.co.uk/Publications/pages/publicationdetail.aspx?id=CTV011http://www.carbontrust.co.uk/Publications/pages/publicationdetail.aspx?id=CTV012http://www.carbontrust.co.uk/Publications/pages/publicationdetail.aspx?id=CTV004http://www.carbontrust.co.uk/Publications/pages/publicationdetail.aspx?id=CTV015http://www.carbontrust.co.uk/Publications/pages/publicationdetail.aspx?id=CTV015http://www.carbontrust.co.uk/Publications/pages/publicationdetail.aspx?id=CTV004http://www.carbontrust.co.uk/Publications/pages/publicationdetail.aspx?id=CTV012http://www.carbontrust.co.uk/Publications/pages/publicationdetail.aspx?id=CTV011http://www.carbontrust.co.uk/Publications/pages/publicationdetail.aspx?id=CTV017http://www.carbontrust.co.uk/Publications/pages/publicationdetail.aspx?id=CTV016http://www.carbontrust.co.uk/Publications/pages/publicationdetail.aspx?id=CTV002

7/30/2019 CTV034

14/19


Reviewing energy invoices and checking meter

readings regularly will help build a picture o your

energy perormance. These measures will also help to:

Ensure that only the uel actually used, is paid or.

Assist with comparing current consumption

and costs with previous years.

Enable assessment o the seasonal pattern

o consumption.

Identiy unexpectedly high or unusual patterns

o energy use so that quick action can be taken.

Electricity and gas meters are two o the most

important tools in helping to identiy opportunities to

save energy. Taking regular meter readings should help

to establish a pattern o energy consumption, which

can be compared against what the business should

be using. Inconsistencies between the two could show

where energy is being used unnecessarily.

The meter

Kow whr rgy mtrs ar

Remember, there may be more than one

meter or each type o uel.

What typ o mtr is it?

Meters that need to be read manually will

have either a digital display or an analogue dial.

Increasingly, energy companies are installing

meters which automatically send inormation

on energy usage to them on a regular basis

sometimes every hal-hour. I this type o meter

is installed, the data should be available rom

the energy supplier.

Aalysig data

Record meter readings regularly. I there is a

change that cant be explained, or no reduction

when you would expect to see one (e.g. summer

holiday periods) check controls and settings

equipment may be let on when it is not needed.

Ideally energy use should be plotted over time

graphically to make it easier to see trends.

Fluctuations in energy use may have many

possible explanations, including variations in

workload, holidays, the season or the weather.

I there is an unexpected fuctuation, then it is

worth looking urther to check i some equipment

malunction or change in working method has

caused an increase in energy use.

Using bis and meter readings

to investigate energy useLooking at energy bills and taking regular meter readings helps to track howenergy is being used and take control o energy costs.

MenU

help

7/30/2019 CTV034

15/19


Pay less or your energy

There are many actors that aect the price o a unit

o electricity. To reduce costs, bear in mind that the

price o a unit can vary signicantly throughout the day

and be substantially cheaper at night.

Contact the electricity supplier or urther inormation.

There are several ways o paying less or each unit

o electricity, or example:

Make maximum use o cheaper electricity

rates, especially those at night-time.

Minimise use o peak rate and winter units.

I possible, reschedule work activity so that

the maximum daily demand or electricity does

not all in peak rate times.

Check taris to ensure you are paying the

minimum amount.

Check with the supplier that the load (the amount

drawn rom the supply) has no unusual

characteristics that may aect the unit price.

Check the power actor (see pag 16).

In addition, the maximum demand i.e. the maximum

number o electricity units the premises take rom

the supplier in any hal-hour period can have a big

impact on the cost, especially i the maximum demand

exceeds what is agreed with the supplier. Checkwhat the maximum demand limit is it should be

on the bill but check with the supplier i it isnt.

Maximum demand is usually provided as a gure

expressed in kWs (kilowatts).

Maximum dmad gratr tha 100kW

I the maximum demand or electricity is greater

than 100kW, a contract can be negotiated with a

supplier. The supplier (or meter operator) will install

a meter that records consumption every hal hour

and automatically sends the reading to them.

Lower prices can be obtained by minimising the

maximum demand in any hal-hour period during

the day and, depending on the details o the contract,

minimising demand during the peak times (usually

4.30pm to 7.30pm Monday to Friday).

An example of reduced energy use after installing

a half-hour meter

0:30

2:00

3:30

5:00

6:30

8:00

9:30

11:00

12:30

14:00

15:30

17:00

18:30

20:00

21:30

23:00

03/02/2005

21/04/2005

0

2

4

6

8

10

12

14

16

18

kWh

Time

MenU

help

7/30/2019 CTV034

16/19


Maximum dmad lss tha 100kW

I the maximum demand is less than 100kW

the organisation will probably be on a standard

tari. There is a wide range o tari structures

and it is important to check that the tari is the

most economical or the organisations consumption

pattern. Contact the supplier to discuss the

available taris and which is likely to be appropriate.

Some electrical equipment, e.g. motors and fuorescent

lighting, can exhibit an eect known as power

reactance (a bit like driving a car with the brakes on).

The combined measure o this unwanted eect in a

business is the power actor. A low actor places an

increased load on the power supply and means thatthe electricity could be more expensive. However,

Power Factor Correction (PFC) equipment is available

which corrects the power actor eect.

It is always advisable to consult an independent

consultant when exploring this measure it can

produce signicant cost savings but is not

applicable in many businesses and needs expert

help to implement.

Many businesses pay too

much or their electricity

and gas and paying lessneednt always involve

switching supplier

Further inormation

Technology guide

Powr actor corrctio (CTG007)


Mtrig (CTV027)

In-depth guides

Moitorig ad targtig (CTG008)

MenU

help
http://www.carbontrust.co.uk/Publications/pages/publicationdetail.aspx?id=CTG007http://www.carbontrust.co.uk/Publications/pages/publicationdetail.aspx?id=CTV027http://www.carbontrust.co.uk/Publications/pages/publicationdetail.aspx?id=CTG008http://www.carbontrust.co.uk/Publications/pages/publicationdetail.aspx?id=CTG008http://www.carbontrust.co.uk/Publications/pages/publicationdetail.aspx?id=CTV027http://www.carbontrust.co.uk/Publications/pages/publicationdetail.aspx?id=CTG007

7/30/2019 CTV034

17/19


Next stepsOnce the opportunities or savings have been identied, its time to act.

The ollowing steps should help you to take eective measures.

Stp 1. Mak somo rsposibl

Give one person responsibility or an energy

saving initiative at the site. They could:

Be responsible or reading the meters

and checking uel bills

Carry out a walk round at designated times

to identiy new sources o wasted energy

Manage specic energy saving projects

Make sure other sta know about the main areas

o energy waste and show them how to save

energy and the benets o doing so.

Stp 2. Pla ad orgais

Draw up an action plan which should be a simple

schedule o the improvements that need to be made,

when they will be made, and who will be responsible

or them. When writing an action plan:

Make someone responsible or each improvement

Allocate resources both time and money i

needed to each improvement

Where possible, set deadlines or the completion

o each improvement and keep checking to ensure

each has been done

Prioritise improvements according to energy

cost savings and time taken to recoup the

cost. The Carbon Trust can assist with this call 0800 085 2005.

Stp 3. Ivolv sta

Although one individual may be responsible or

energy eciency, the involvement and commitment

o all sta is crucial to achieving success. Encourage

all sta to participate in a campaign o energy

eciency. Raising awareness is the rst step on

the way to getting sta participation.

Posters, stickers and leafets are an inexpensive,

eective way o reminding sta to be energy ecient.

These can be produced in house, or there is a range

o materials available to order rom the Carbon Trust.

Many companies have introduced incentive schemes

to ensure that actions are undertaken and that all sta

contribute to energy saving measures.

Further inormation

ergy maagmt stratgy (CTV022)

Practical rgy maagmt (CTV023)

Cratig a awarss campaig (CTG001)

MenU

help
http://www.carbontrust.co.uk/Publications/pages/publicationdetail.aspx?id=CTV022http://www.carbontrust.co.uk/Publications/pages/publicationdetail.aspx?id=CTV023http://www.carbontrust.co.uk/Publications/pages/publicationdetail.aspx?id=CTG001http://www.carbontrust.co.uk/Publications/pages/publicationdetail.aspx?id=CTG001http://www.carbontrust.co.uk/Publications/pages/publicationdetail.aspx?id=CTV023http://www.carbontrust.co.uk/Publications/pages/publicationdetail.aspx?id=CTV022

7/30/2019 CTV034

18/19


Carbon Footprint Calculator Our online calculator will help youcalculate your organisations carbon emissions.

www.carbotrust.co.uk/carbocalculator

Interest Free Loans Energy Eciency Loans rom the Carbon Trust are a costeective way to replace or upgrade your existing equipment with a more energyecient version. See i you qualiy.

www.carbotrust.co.uk/loas

Carbon Surveys We provide surveys to organisations with annual energy billso more than 50,000*. Our carbon experts will visit your premises to identiy energy

saving opportunities and oer practical advice on how to achieve them.

www.carbotrust.co.uk/survys

Action Plans Create action plans to implement carbon and energysaving measures.

www.carbotrust.co.uk/apt

Case Studies Our case studies show that its oten easier and less expensivethan you might think to bring about real change.

www.carbotrust.co.uk/casstudis

Events and Workshops The Carbon Trust oers a variety o eventsand workshops ranging rom introductions to our services, to technical energyeciency training, most o which are ree.

www.carbotrust.co.uk/vts

Publications We have a library o ree publications detailing energy savingtechniques or a range o sectors and technologies.

www.carbotrust.co.uk/publicatios

Need urther hep? Call our Customer Centre on 0800 085 2005

Our Customer Centre provides ree advice on what your organisation

can do to save energy and save money. Our team handles questions

ranging rom straightorward requests or inormation, to in-depth

technical queries about particular technologies.

* Subject to terms and conditions.

Go onine to get moreThe Carbon Trust provides a range o tools, services and inormation to help you

implement energy and carbon saving measures, no matter what your level o experience.

MenU

help
http://www.carbontrust.co.uk/carboncalculatorhttp://www.carbontrust.co.uk/loanshttp://www.carbontrust.co.uk/loanshttp://www.carbontrust.co.uk/surveyshttp://www.carbontrust.co.uk/surveyshttp://www.carbontrust.co.uk/apthttp://www.carbontrust.co.uk/apthttp://www.carbontrust.co.uk/casestudieshttp://www.carbontrust.co.uk/casestudieshttp://www.carbontrust.co.uk/eventshttp://www.carbontrust.co.uk/eventshttp://www.carbontrust.co.uk/publicationshttp://www.carbontrust.co.uk/publicationshttp://www.carbontrust.co.uk/publicationshttp://www.carbontrust.co.uk/eventshttp://www.carbontrust.co.uk/casestudieshttp://www.carbontrust.co.uk/apthttp://www.carbontrust.co.uk/surveyshttp://www.carbontrust.co.uk/loanshttp://www.carbontrust.co.uk/carboncalculator

7/30/2019 CTV034

19/19

The Carbon Trust receives unding rom Government including the Department o Energy and Climate

Change, the Department or Transport, the Scottish Government, the Welsh Assembly Government

and Invest Northern Ireland.

Whilst reasonable steps have been taken to ensure that the inormation contained within this publication

is correct, the authors, the Carbon Trust, its agents, contractors and sub-contractors give no warrantyand make no representation as to its accuracy and accept no liability or any errors or omissions.

Any trademarks, service marks or logos used in this publication, and copyright in it, are the property

o the Carbon Trust. Nothing in this publication shall be construed as granting any licence or right to use

or reproduce any o the trademarks, service marks, logos, copyright or any proprietary inormation

in any way without the Carbon Trusts prior written permission. The Carbon Trust enorces inringements

o its intellectual property rights to the ull extent permitted by law.

The Carbon Trust is a comp any limited by guarantee and registered in England and Wales under Company

number 4190230 with its Registered Oce at: 6th Floor, 5 New Street Square, London EC4A 3BF.

Published in the UK: May 2010. CTV034v2

Queens Printer and Controller o HMSO.

The Carbon Trust is a not-or-prot company with the mission to accelerate the move to a low

carbon economy. We provide specialist suppor t to business and the public sector to help cut

carbon emissions, save energy and commercialise low carbon technologies. By stimulating

low carbon action we contribute to key UK goals o lower carbon emissions, the development

o low carbon businesses, increased energy security and associated jobs.

W hlp to cut carbo missios ow by:

providing specialist advice and nance to help organisations cut carbon

setting standards or carbon reduction.

W rduc pottial utur carbo missios by:

opening markets or low carbon technologies

leading industry collaborations to commercialise technologies

investing in early-stage low carbon companies.

www.carbontrust.co.uk

0800 085 2005

ACT ON CO2 is the Governments initiative to help

individuals understand and reduce their carbon ootprint.

Visit http://actonco2.direct.gov.uk or more inormation.

CTV034

Documents

CTV034