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© Energy Local Ltd. 2015 SWELL WELCOME PACK 1.04

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Page 1: SWELL WELCOME PACK 1.04

© Energy Local Ltd. 2015

SWELL

WELCOME PACK

1.04

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SWELL WELCOME PACK

Page 2 v1.04 © Energy Local Ltd 2015

Contents

Glossary ................................................................................................................................................... 3

1 Welcome ......................................................................................................................................... 3

2 Overview of Energy Local ................................................................................................................ 3

3 The SWELL Trial ............................................................................................................................... 3

3.1 Tariffs ...................................................................................................................................... 4

3.2 How you will receive your savings .......................................................................................... 5

3.3 Events during the Trial ............................................................................................................ 5

3.4 Surveys .................................................................................................................................... 5

3.5 How the control works ............................................................................................................ 5

3.5.1 Immersun ........................................................................................................................ 6

3.6 Information on the cost of power and amount of generation available. ............................... 6

4 The different components .............................................................................................................. 6

4.1 Hestia Hub Control box ........................................................................................................... 6

4.2 Display Interface ..................................................................................................................... 6

4.3 Broadband communication .................................................................................................... 6

4.4 Setting up your system ........................................................................................................... 6

4.4.1 To see your display on a laptop, tablet or smartphone .................................................. 7

4.4.2 Setting users and passwords ........................................................................................... 7

4.4.3 Notifications .................................................................................................................... 8

4.5 Smart plugs ............................................................................................................................. 8

4.6 How to control smart plugs .................................................................................................... 9

4.7 Storage heater and Hot Water Control ................................................................................. 11

4.7.1 How to control electric hot water ................................................................................. 11

4.7.2 How to control electric storage heaters ....................................................................... 12

4.7.3 Holiday Mode ................................................................................................................ 13

4.8 Electrical storage ................................................................................................................... 13

4.9 Changes to your broadband password or loss of connection to WiFi .................................. 14

4.9.1 Your Data ...................................................................................................................... 14

5 Troubleshooting ............................................................................................................................ 15

5.1 The information on my display is not updating. ................................................................... 15

5.2 My control box is not switching my appliances .................................................................... 15

5.3 I have electric water heating but it is cold. ........................................................................... 15

5.4 I have electricity and storage heaters but the house is cold. ............................................... 15

5.5 I have lost my password to my display ................................................................................. 16

5.6 My broadband password has changed ................................................................................. 16

6 Contact Information – In Case of Problems .................................................................................. 16

6.1 Electrical Safety ..................................................................................................................... 16

6.2 Other problems ..................................................................................................................... 16

6.3 General enquiries .................................................................................................................. 16

7 Technical information ................................................................................................................... 16

8 Energy Use in the Home and Its Cost ............................................................................................ 17

9 Energy Savings from Efficient White Goods ................................................................................. 19

10 SWELL Partners ............................................................................................................................. 21

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V1.04 ©Energy Local Ltd 2015 Page 3

Glossary Term / Acronym Meaning

CESCo Community ESCO (Community Energy Service Company)

Energy Efficiency Ratings

Ratings for white goods and wet appliances from A+++ to C showing how efficiently they use energy. (Older appliances might be rated D, E, F or even G)

Hestia The name of the control boxes used in this trial

Maslow The name of the storage units (batteries) tested in this trial

Photovoltaics Panels that generate electricity from the sun.

PV Shortened name for solar photovoltaic panels. (See above)

Solar panels See above

Smart plugs The plug sockets used in this trial that can be switched on and off remotely so that the appliance plugged into them can be scheduled.

SWELL The name of the trial ‘Shrivenham and Watchfield Energy Local with Longcot’

Tariffs

The price you pay per kWh for electricity. In this trial this will vary at different times of the day.

1 Welcome Thank you for participating in the SWELL trial. This booklet should give you information about the

trial and the Hestia Home Energy Management system.

We will update the copy on www.energylocal.co.uk if new features are added.

2 Overview of Energy Local Energy Local is a new means by which a community can pool locally their own generation. The

owners of the generation receive a better income from any power that they don’t use (i.e. export)

and the local users receive a better price if they use power which has been generated locally. The

community is also offered different power from their supplier at different prices, depending on the

time of day.

As well as reducing the cost of power, more income is retained within the community. This makes

renewable power more viable.

To help a community match their energy use to local generation and cheaper prices at different

times of day, Energy Local is working with partners to develop a home energy management system

that works on a community scale. More information at www.energylocal.co.uk.

3 The SWELL Trial The SWELL trial is to test out the Energy Local model in Shrivenham, Watchfield and Longcot. The

trial is being co-funded by InnovateUK. As one of the 50 participants you are testing the idea to see

how much you can save from shifting when you use power and matching local generation (in this

case solar photovoltaic - PV - generation). You are also testing a prototype of the energy

management system to help schedule loads and understand your energy use.

There are 16 participants with solar panels. It is their generation that we will share within the group.

The Environmental Change Institute at Oxford University will be carrying out surveys during the

project to find out how you are getting on and to learn about your motivations.

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3.1 Tariffs For the SWELL trial we are not changing your energy bill. However, we are giving you a ‘dummy

tariff’ with different prices at different times of day. If you move when you use electricity to when

the price is cheap, we will give you the equivalent of the savings you would make in Cooperative

Shopping vouchers.

The prices at different times of day are shown below in the table and on the graph. Remember local

solar is always the cheapest at 6.5p/kWh.

Time Price p/kWh

23:00 to 06:00 (0vernight) 8.3

06:00 to 11:00 (Morning peak) 13.0

11:00 to 17:00 (Daytime) 11.0

17:00 to 23:00 (Evening) 15.4

Price for solar 6.5

So that everyone is treated the same we are comparing you savings against the cost of power if you

were on a standard tariff from SSE. This is 13.37p/kWh. For those who are on Economy 7, the two

rates are 16.02/kWh and 7.35p/kWh. You may have a lower tariff but we need to have a benchmark.

If you export generation that is used within the CESCo you will receive 6.5p/kWh. If you use power

generated in the CESCo it will cost you 6.5p/kWh.

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Prices During the Day

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3.2 How you will receive your savings We will calculate your savings once a quarter during the 12 months of the trial. We will send you

Cooperative Shopping Vouchers with a description of how you saved power.

You will also receive a £10 voucher once the equipment has been installed.

3.3 Events during the Trial We will be organising events during the trial for you to discuss how you are getting on. We also plan

a ‘celebration’ nearer the end.

3.4 Surveys A researcher from the Oxford University Environmental Change Institute will be carrying out surveys

at the beginning, middle and end of the project.

The first survey will

take place either over the phone or in your home

occur between 1-3 weeks after installation

will take around 20 minutes

aim to find out how you use energy in your home, your motivations for taking part in the

project, the degree of control you feel you have over your energy consumption and how

much of your electricity use you might be able to shift to different times if necessary

Subsequent surveys will

take place in spring 2016 (either online or postal)

take place towards the end of the trial (either phone or in home)

be concerned with how the trial is working out from your point of view

take between 10-20 minutes

3.5 How the control works

Each day around midnight your control box will receive two pieces of information from a central server to help you use power during the next day. These two pieces of information are:

A table of the price of power at different times of day offered by the supplier (for this first

trial this won’t change from day to day)

A signal that shows “good” or “bad” times to use power. As well as the price of power from

a supplier, this uses a weather forecast to estimate the amount of local generation (e.g. from

solar panels). For example, the ‘best’ time to use power will be in the middle of the day if it

is a sunny day and there are solar panels.

The signal will be used to influence the time when appliances under automatic control will operate,

according to your preferences:

If you have storage heaters and electric water heating, the control box will find the best time

to put heat into the storage heaters and heat up the water. You will be able to enter how

warm you need the home. You will be shown how much hot water you have available and

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you will be able to boost this, if necessary. The system will always ensure there is some hot

water available.

If you have a battery installed, this will charge and discharge in the best way to save money.

The remotely controlled plug will switch on an appliance. You will be able to enter a period

of the day when you would like the appliance to run. The control box will use the signal to

select the best time of day to switch it on within that period.

3.5.1 Immersun Some participants with PV have ‘Immersun devices’ use the excess generation to heat water. With a

few exceptions, we have asked you to switch these off during the trial. You will receive more for

this power in Coop Vouchers than the value you would save from reduced use of gas.

3.6 Information on the cost of power and amount of generation available. On your display there will be a page that shows the cost of power at different times of day. This is

calculated daily and takes into account the amount of solar PV generation available within the

community each day.

This display will be the same for all users irrespective of whether they have PV on their roof or

Maslow battery units, or neither of these.

We will would like your comments to help us make the display as easy to understand as possible.

Predicting the amount of generation available on a local scale is difficult. We won’t perfect this first

time! Where possible it may be worth looking out of the window to double check. We will work to

improve the prediction of generation during the trial.

4 The different components

4.1 Hestia Hub Control box This is the ‘brains’ of the system in your home. It receives information from the central server and

from your display interface and provides local control for some appliances in your home.

4.2 Display Interface This is where you can see how much power you have used and when. It will show you the tariffs and

forecast the amount of local generation available. You can use it to manage your smart plug, and

your storage heaters and water heating if you have them and they are part of the trial.

We will be grateful for feedback so we can improve this interface.

4.3 Broadband communication The system uses your broadband to communicate with a central server. It also uses it to

communicate with your display.

It is particularly important that the broadband is on at least once a day. Ideally from 23:30 to

midnight or early in the morning to pick up the forecast for the next day.

If your broadband is not on or broadband fails, it will use the information from the day before.

4.4 Setting up your system When the electrician installs your Hub, he will ask you to enter your broadband password, the

system should then connect automatically.

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If there seems to be a problem, unplug the Hub, plug it back in again. It should reconnect

automatically.

4.4.1 To see your display on a laptop, tablet or smartphone

To access your display, if you're using Windows, Apple OS X, Linux or an iPhone:

Open a web browser and enter http://hestia.local into the address bar.

We will install Apple software ‘Bonjour Print Services’ on your Windows computer or laptop

https://support.apple.com/kb/DL999?locale=en_GB, to enable them to communicate with your hub.

If you're using an Android device (e.g. most smartphones that aren’t made by Apple), you must

download an app.

Open a web browser and enter http://tiny.cc/hestiahub-android into the address bar.

Click the downloaded file to install the app. Once installed, you can use this to access your

display (as long as you are connected to your home broadband network)

Note: you may need to configure your Android to allow app installations from .APK files. To

do this, on your android phone go to:

> Settings > Security - Device Administration

Click to allow "unknown sources". Then you can install the file you just downloaded.

4.4.2 Setting users and passwords The admin name and password is printed on the Hestia box label.

You can add and remove users for your display. Go to Admin and the Users tab. Give each User a

name and password and press add.

To remove a user press remove.

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If someone forgets their password, you can always log in using the name and password printed on

the Hub label.

4.4.3 Notifications You can enter an email address to receive automatic notifications. For example if your broadband

fails. Go to the Notification Tab and enter an e mail address. Tick ‘Enable Notifications’ and press

update.

You can turn off notifications by unclicking the Enable Notifications and pressing Update

4.5 Smart plugs These can be used to control appliances from the plug socket. Be careful – digital washing machines

and dishwashers may lose their settings if turned off at the wall. If this is the case you cannot

schedule them using the smart plugs. Many modern appliances have a ‘delay start’ option so you

can manually set them to start when the power is cheapest.

We would not suggest you connect any critical loads to the smart plug, just in case something

doesn’t work quite right.

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4.6 How to control smart plugs

On the display interface go to the smart plug page.

Smart plugs are labelled A, B, C, etc. We will supply you with one plug but you can buy more at: https://energenie4u.co.uk/catalogue/product/ENER002

Firstly, you need to set up your smart plug. Select an appliance name and a cycle length. Make sure

you always leave more time than you need for a task to run, to make sure it has finished before the

plug is switched off.

Once you have completed the settings page, two more tabs will appear – Timeline and New Tasks.

Select the ‘New Task’ tab.

Fill in when the cycle needs to be completed and press ‘add to schedule’. You may schedule

repeated tasks here too.

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On the timeline you can see what tasks have run and what are scheduled. You can cancel schedules

here too.

Please note

Avoid putting two smart plugs in adjacent/close sockets or in a socket near to the Hestia Hub – the communications can get confused. The smart plugs may occasionally stop responding if they lose their ‘pairing’ information. If this occurs, press the button on the front of the smart plug until it flashes, then send a test on/off from the hub – the orange button at the bottom of the settings screen.

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4.7 Storage heater and Hot Water Control If you have storage heaters or electric water heating and they are part of the trial, the control will

put enough energy into your storage heater to ensure you feel comfy in your home. It will keep hot

water ready for you to use. You may need to boost the water heater it if you need extra hot water.

4.7.1 How to control electric hot water The system will provide a regular amount of hot water available and learn your habits. You can see

how much hot water is available by water tank graphic, and other indicators on this page.

If you find at any point you find you need more water heated, please press the ‘Need more hot

water?’ button.

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4.7.2 How to control electric storage heaters

The control will automatically predict and deliver enough energy into your storage heaters,

depending on your preferences, the weather forecast, and the type of house you have. You can

indicate how warm you like to feel by selecting a heating profile.

You can select which heaters are charged by switching them on during the night individually using

their main switch and select which heaters to use during the day by switching them on individually.

You can use the boost direct heater if necessary as usual (but we hope you won’t need to do this).

Please let us know if you need to use the boost heater more than normal.

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4.7.3 Holiday Mode If you want to turn off your heating whilst on holiday, go to Admin and the Occupancy tab. Add the

date you are leaving and the date you are returning. Press submit. You heating with then be ready

for you when you return.

Press cancel if you want to remove the holiday mode.

4.8 Electrical storage We are trialling 10 storage units (batteries). They will charge at the cheapest time of day so you can

use this power when it is more expensive to buy from the supplier. The batteries will provide power

to your home electricity supply so that you can use the power for anything. The battery will charge

and discharge automatically.

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4.9 Changes to your broadband password or loss of connection to WiFi If your hub is connected to your internet with WiFi:

Check the list of local WiFi networks. If there is one with a name "HestiaHub_****", then

that means your Hub has lost connection to your house internet.

Connect to this WiFi network (there is no password required) and then type this address into

your web browser: "192.168.52.1". Then follow the instructions on screen.

If there is no WiFi network called "HestiaHub_****", turn your HestiaHub Control box off at

the mains, and turn it back on, then wait for 5 minutes and try again.

If you still have problems, please contact us (section 6)

If your hub is connected to your internet by a cable:

Check that both ends of the ethernet cable are plugged in,

Wait 2 minutes and try to access “hestia.local" webpage, or launch your Android app.

If you still can't see your webpage or icon, turn your HestiaHub Control box, off at the mains,

and turn it back on, then wait for 5 minutes and try again.

If you still have problems, please contact us (section 6)

4.9.1 Your Data On the display you will be able to see your power usage. We will also send you information about

when you are using power when we send your vouchers. We can give you data about your energy

use over a longer time scale if you request it.

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5 Troubleshooting

5.1 The information on my display is not updating. Switch your display on and off. It should reconnect automatically.

Switch the power to your Hestia Hub control box on and off at the wall. It should reconnect

automatically.

Please check that your broadband and WiFi router is operating. Once it reboots it should

reconnect to your Hestia Hub control box automatically.

Please contact us, see section 6.

5.2 My control box is not switching my appliances Please check that you have programmed them to run on your display interface (see section

4.6)

Please check that you have the appliance plugged into the right smart plug (see section 4.6)

Please check you have set the appliance up so that it will run when it is switched on at the

wall by the plug.

Please increase the length of time the appliance requires on the display.

Please reset the smart plug by pressing the green button on the plug until it flashes and then

the orange test button on the smart plug settings display tab (see section 4.6)

Switch the power to your Hestia Hub control box off and on at the wall. It should reconnect

automatically.

Please check that your broadband and WiFi router is operating. Once it reboots it should

reconnect to your Hestia Hub control box automatically.

Please contact us, see section 6.

5.3 I have electric water heating but it is cold. Please check that the water heating is switched on at the wall.

Please check that you have not switched your heating off by pressing the ‘I’m on holiday’ on

your customer interface(see section 4.7.3)

Switch the power to your Hestia Hub control box on and off at the wall. It should reconnect

automatically.

Please check that your broadband and WiFi router is operating. Once it reboots it should

reconnect to your Hestia Hub control box automatically.

- Please contact us, see section 6.

5.4 I have electricity and storage heaters but the house is cold. - Try increasing how warm you would like your home on the customer interface (see section

4.7.2)

- Check the heaters are switched on.

- Please check that your control box and is on and the broadband is on and connected (see

section 4.9)

- Please contact us see section 6.

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5.5 I have lost my password to my display You can use the admin name and password which are shown on the hub label.

5.6 My broadband password has changed To update the system, please follow the instructions in 5.6. It’s always worth trying to refresh the

browser window (for example, hold down the control key and press F5 for Windows computers).

Also, you may wish try a different browser. If you get stuck please contact us see section 6.

6 Contact Information – In Case of Problems

6.1 Electrical Safety

Safety First: If there is any indication of damage to electrical appliances

– unusual smells or marking on casings, immediately:

Unplug the control hub and smart plugs

Switch off the heating and hot water at the consumer unit (fuse

box)

Contact us immediately (see below)

6.2 Other problems If you have a problem (not for general enquiries) please email or phone:

[email protected] 0118 310 0475

Please give your name, and the best means to contact you. Please try to explain what the problem is

and for how long it has occurred.

We will endeavour to respond in 24 hours. Over the weekend we may not be able to get back to you

until the Monday.

6.3 General enquiries For general enquiries please use the following:

Email: [email protected]

Website: www.energylocal.co.uk

Twitter: @energylocal

7 Technical information We can provide the project technical file on request.

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8 Energy Use in the Home and Its Cost This section is aimed to give you some information about how much energy different appliances use

and when we typically use them in the day. It then gives an idea of the difference in cost of running

different appliances at times of cheap or expensive electricity.

Power used by different appliances

The power that is used by different appliances in a year for a typical household is shown in the bar

chart below. The black bars show the consumption if they were bought in 2009 and the red bars if

they were bought in 2013.

You can see that some items are now much better designed so they use much less power. For

example, a new chest freezer now uses about half the energy it did in 2009.

Everyone’s habits are different so how much they use different items will vary. However, you can

see from the chart the items that tend to use a lot of power – washing and keeping things cool.

Other items will add up because you may have a lot of them. If you have a lot of lightbulbs or

electronics, although each one does not use much power, in total the power they use will add up.

When do we use different appliances and how much does it cost?

Below is a graph of when we typically use different appliances during the day. Quite a lot of a

household's energy use is ‘unknown’. This could be anything that plugs in e.g. vacuuming, ironing,

hairdryers, toasters…. Again, every house will be different.

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Not surprisingly households do a lot of cooking in the evening and electric showers are used in the

morning and evening.

Under Energy Local, power will cost different amounts at different times of day. The next tables

show the typical annual running costs for appliances if the power costs different amounts.

Remember, power will be more expensive during the evening with an Energy Local tariff. These

figures are for typical usage during a year, some people will use some appliances more. For

example, if you more washing than average, your washing machine costs for the year will be higher.

The first table shows typical costs over the year for:

Lighting – this is hard to schedule without a battery but the table shows the difference in

cost when efficient lighting is used.

Fridges and freezers - eventually these could be cooled during times of cheaper power.

‘Wet appliances’ for laundry that you could schedule to run at times of cheaper power.

price £/kWh

Halogen

(£)

Fluoresc

ent Strip

Lighting

(£)

Energy

Saving

Light

Bulb (£)

LED

lighting

(£)

Chest

Freezer

(£)

Fridge-

freezer

(£)

Refrigera

tor (£)

Upright

Freezer

(£)

Washing

Machine

(£)

Washer-

dryer (£)

Dish

washer

(£)

Tumble

Dryer (£)

0.06 1.36 3.92 0.53 0.57 8.96 18.15 8.05 11.33 12.03 32.36 17.76 24.98

0.08 1.81 5.23 0.71 0.76 11.95 24.21 10.73 15.11 16.04 43.15 23.68 33.31

0.10 2.26 6.54 0.88 0.95 14.94 30.26 13.42 18.88 20.05 53.93 29.60 41.64

0.12 2.71 7.85 1.06 1.14 17.92 36.31 16.10 22.66 24.06 64.72 35.52 49.97

0.14 3.17 9.15 1.24 1.33 20.91 42.36 18.78 26.44 28.07 75.51 41.45 58.29

0.16 3.62 10.46 1.42 1.52 23.90 48.41 21.47 30.21 32.08 86.29 47.37 66.62

0.18 4.07 11.77 1.59 1.70 26.89 54.46 24.15 33.99 36.09 97.08 53.29 74.95

Saving if

power costs

£0.06

instead of

£0.14/kWh 1.81 5.23 0.71 0.76 11.95 24.21 10.73 15.11 16.04 43.15 23.68 33.31

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The second table shows typical costs over the year for:

IT and electronics – those with batteries can be charged during times of cheap power.

Cooking and electronics – you could change your routine to save money.

9 Energy Savings from Efficient White Goods We don’t change our white goods very often. When we are standing in the show room, the savings

from buying an efficient model may be hard to imagine but, over the years, the savings add up.

Energy Efficiency ratings are from A+++ to C or D. Very old goods will have lower ratings than this

scale. The fact that there are now new categories up to A+++ shows how much more efficient

appliances can be nowadays. For most goods, no products are sold with a rating below B or C today.

Note that keeping old appliances as ‘spares’ could be a significant cost to you. Likewise accepting

old appliances that have been ‘passed on’ may be costly in the long run.

Washing Machines

The energy ratings are assessed for a typical use per year and per cycle are given below (costs are

estimated assuming a rate of 14p/kWh. There is ~ £11/year saving between an A to A+++ rated

machine and yet A+++ machines need not be more expensive to buy. Typical energy use and costs:

Washing machine rating

A+++ A++ A+ A B C D

Max kWh/year 150 174 197 227 257 291 334

Max cost/year [£] £21 £24 £28 £32 £36 £41 £47

Savings of A+++ [£] £3 £7 £11 £15 £20 £26

Max kWh/cycle 0.15 0.70 0.79 0.90 1.03 1.17 1.32

Max cost/cycle [£] £0.68 £0.79 £0.90 £1.03 £1.17 £1.32 £1.52

Savings from A+++ /cycle [£]

£0.11 £0.22 £0.35 £0.49 £0.64 £0.84

Different machines use different amounts of water which you may also want to compare the

amount of water that machines use especially if you are on a water meter.

price £/kWh

Set Top

Box (£)

DVD/VCR

2 (£)

Games

Consoles

3 (£)

Power

Supply

Units (£)

Desktops

(£)

Laptops

(£)

Monitors

(£)

Electric

Oven (£)

Electric

Hob (£)

Microwave

(£)

0.06 2.50 0.96 0.57 2.00 11.63 2.23 12.40 10.34 14.66 5.44

0.08 3.33 1.27 0.76 2.67 15.51 2.97 16.54 13.79 19.55 7.26

0.1 4.17 1.59 0.95 3.34 19.39 3.72 20.67 17.24 24.44 9.07

0.12 5.00 1.91 1.15 4.01 23.27 4.46 24.80 20.69 29.33 10.89

0.14 5.84 2.23 1.34 4.68 27.14 5.20 28.94 24.13 34.22 12.70

0.16 6.67 2.55 1.53 5.34 31.02 5.95 33.07 27.58 39.11 14.52

0.18 7.50 2.87 1.72 6.01 34.90 6.69 37.21 31.03 43.99 16.33

Saving if

power costs

£0.06

instead of

£0.14/kWh 3.33 1.27 0.76 2.67 15.51 2.97 16.54 13.79 19.55 7.26

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Dishwashers

Dishwashers are rated according to a typical yearly usage.

Dishwasher rating A+++ A++ A+ A B C D Max kWh/year 208 240 273 314 356 402 462

Max £ cost/year £29 £34 £38 £44 £50 £56 £65

Savings from a A+++ model £ £5 £9 £15 £21 £27 £36

Between an A rated and A+++ rated machine there is nearly £15/year saving. Whilst A+++ products

are more expensive to buy there are A++ rated designs of the same price as A rated options. You

can get £10 of the savings at no extra capital cost!

Different machines use different amounts of water which you may also want to compare the

amount of water that machines use especially if you are on a water meter.

Fridges and Freezers

It is difficult to compare one fridge to another or one freezer to another as they are all different

shapes and sizes. The Energy Rating is calculated by comparing the energy use with the internal

volume. Below are two examples.

If your fridge or freezer is nearly empty, the door is not shut or you keep opening and shutting the

door, it will use more power.

There are few fridges and freezers that are A+++ rated and they tend to be more expensive.

Nevertheless A+ rated fridges are similar in price to A -rated products and gain a £10/year saving.

An A++ fridge saves £14 saving/per year compared to A, this is around £20/year for a fridge freezer.

Fridge rating A+++ A++ A+ A B C

Fridge kWh/year 72 90 122 192 212 232

cost £/year £10 £13 £17 £27 £30 £32

Saving to A+++ rating £3 £7 £17 £20 £22

Fridge freezer A+++ A++ A+ A B C

kWh/year 206 270 339 408 612 816

cost £/year £29 £38 £47 £57 £86 £114

difference in cost to A+++ rating £

£9 £18 £28 £57 £85

For very old fridges and freezers, the running costs will be even higher than the figures shown for

the C-rated appliances shown above.

Total Savings

So without additional capital expensive purchasing energy efficient white goods could save you

£40/year in running costs. The savings will be greater if you are replacing older, poorly rated

appliances.

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10 SWELL Partners

We have range of partners working with us to develop Energy Local in the SWELL project.

WeSET is a unique local charity, supported by the community-owned Westmill Wind Farm. WeSET supports renewable energy, arts and education projects and funds small grants. Over the last few years we’ve shown almost 9,000 visitors around Westmill Wind Farm and Solar Park through a combination of open days and on-site events. We demonstrate what a genuinely community owned low carbon future could look like. www.weset.org

The Environmental Change Institute was founded in 1987 to organise and promote interdisciplinary research on the nature, causes and impact of environmental change and to contribute to the development of management strategies. ECI researchers contribute to an integrated programme of understanding change processes, exploring sustainable solutions, education and partnership. www.eci.ox.ac.uk

Exergy Devices is an R&D company developing innovative products that save energy and integrate the smart home with the smart grid. Winners of the 2014 Dynamic

Demand Challenge with our Hestia smart heating control for electrically-heated homes. www.exergydevices.co.uk

Energise Sussex Coast is an energy co-operative for community benefit set up to address fuel poverty in East Sussex by helping local communities save energy and generate and own their own energy.

energisesussexcoast.co.uk

Moixa Technology aims to change the way we produce and use electricity. Our ambition is no less than to power the future efficiently and

affordably, to help keep the lights on and electronics online, at the lowest possible price and carbon use. www.moixatechnology.com www.meetmaslow.com

De Montfort University www.dmu.ac.uk

Co-operative Energy is an energy provider supplying gas and electricity to domestic

customers across England, Scotland and Wales. The business is committed to fair pricing, lower carbon energy and is wholly owned by its customers, who are rewarded twice a year with a share of profits. www.cooperativeenergy.coop