Energy: Conservation

Energy and Climate Change written question – answered on 30th March 2010.

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Photo of David Anderson David Anderson Labour, Blaydon

To ask the Secretary of State for Energy and Climate Change what estimate he has made of the cost per kilogram of carbon dioxide saved for the different types of commercially available domestic energy efficient technologies, including circulator pumps; and if he will make a statement.

Photo of Joan Ruddock Joan Ruddock Minister of State (Department of Energy and Climate Change)

This question was considered in the recent CERT extension impact assessment, which can be accessed via the link provided(1). The cost per kilogram of carbon dioxide saved can be determined for a range of technologies from the information provided in tables 1 and 2. The cost per kilogram can be determined by dividing the total cost for the measure, shown in table 2, by the relevant life time carbon dioxide savings shown in table 1 (multiply the figures shown in table 1 by 1,000 to obtain kilograms of carbon dioxide). The Department does not hold this information for circulator pumps.

(1) This information was extracted from pages 55 and 56 of die Impact Assessment for the CERT consultation and can be accessed via the following link:

http://www.decc.gov.uk/en/content/cms/consultations/cert_ext/cert_ext.aspx

Table 1: Lifetime CO 2 saving score per measure, in the priority and non-priority groups
Lifetime C O 2 savings per measure tC O 2 (lifetime)
Carbon saving measure Lifetime (years) PG Non-PG
Insulation Cavity wall insulation 40 23.74 26.34
Loft insulation professional (from < 60mm) 40 14.70 18.10
Loft insulation professional (from > 60mm) 40 4.34 5.34
Loft insulation (DIY) 40 9.40 11.58
SWI external 30 62.02 68.83
SWI internal 30 58.64 65.08
Insulated wallpaper 30 20.17 22.38
Tank insulation-top-up 10 1.98 1.98
Glazing E to C rated 20 1.52 1.72
Draughtproofing 20 2.32 2.86
Heating A/B rated boilers (exceptions) 12 3.95 4.47
Fuel switching 20 74.97 84.94
Heating controls-upgrade with boiler 12 0.38 0.44
Heating controls-extra 12 3.09 3.57
Wood pellet stoves (secondary) 20 11.10 12.58
Log burning stoves 20 3.99 4.52
Wood pellet boilers (primary) 20 95.84 108.60
Solar water heater (4m(2)) 25 8.14 8.14
Ground source heat pumps 40 95.97 108.75
Air source heat pumps 15 42.57 48.23
Wood chip CHP 30 96.48 107.07
Community GSHP 40 20.42 22.66
Community heating to wood chip 30 106.41 118.08
Replacement of G rated boilers 6 5.44 6.17
Lighting CFLs-retail 8 0.05 0.05
Efficient halogens 6.51 0.02 0.02
LEDs 18 0.14 0.14
Appliances A rated cold appliances (1)-
A rated wet appliances (1)-
iDTVs (1)-
PC mains panels 5 0.15 0.16
Energy saving kettles 5 0.04 0.04
LNBs 7 0.04 0.04
A++ cold appliances 12 0.58 0.58
A++ wet appliances 12 0.11 0.11
Microgen Photovoltaic panels (2.5 kWp) 25 22.78 22.78
micro Wind (1 kWp, 10 per cent. LF) 10 3.78 3.78
micro Hydro (0.7 kWp, 50 per cent. LF) 20 26.44 26.44
Mini-wind 5 kW, 20 per cent. LF 22.5 84.98 84.98
mCHP (80 per cent. heat, 15 per cent. elec) 15 2.91 3.30
Other RTDs 15 0.996 0.996
Advice only 7.5 0.6675 0.6675
(1) No longer eligible
Table 2 : Assumed costs of measures
£
Basic installation cost Administration cost Total cost
Carbon saving measure All PG non-PG PG non-PG PG non-PG
Insulation Cavity wall insulation 380 356 395 87 71 443 466
Loft insulation professional (from < 60mm) 286 268 297 70 57 338 355
Loft insulation professional (from > 60mm) 286 268 297 70 57 338 355
Loft insulation (DIY) 120 107 128 32 28 138 157
SWI external 8,500 7,969 8,830 293 225 8,262 9,054
SWI internal 5,100 4,781 5,298 273 210 5,054 5,508
Insulated wallpaper 3,700 3,469 3,843 256 198 3,725 4,042
Tank insulation-top-up 14 14 14 4 3 18 17
Glazing E to C rated 212 199 220 55 45 253 265
Draughtproofing 101 94 105 28 24 123 128
Heating A/B rated boilers (exceptions) 212 209 214 57 44 266 258
Fuel switching 2,014 1,888 2,092 216 169 2,104 2,261
Heating controls-upgrade with boiler 90 84 94 26 21 110 115
Heating controls-extra 148 139 154 40 33 179 188
Wood pellet stoves (secondary) 1,417 1,399 1,428 192 147 1,592 1,575
Log burning stoves 1,000 988 1,008 164 125 1,151 1,133
Wood pellet boilers (primary) 7,200 7,110 7,256 289 220 7,399 7,476
Solar water heater (4m(2)) 3,500 3,500 3,500 257 194 3,757 3,694
Ground source heat pumps 11,360 10,295 12,021 301 231 10,596 12,252
Air source heat pumps 5,844 5,771 5,889 281 214 6,052 6,103
Wood chip CHP 9,281 9,165 9,353 298 226 9,463 9,579
Community GSHP 4,250 4,197 4,283 267 203 4,463 4,486
Community heating to wood chip 350 346 353 85 65 430 418
Replacement of G rated boilers 2,500 2,500 2,500 236 179 2,736 2,679
Lighting CFLs-retail 1.10 1.10 1.10 0.36 0.27 1.46 1.37
Efficient halogens 2.50 2.50 2.50 0.82 0.62 3.32 3.12
LEDs 8.00 7.00 8.62 2.29 2.14 9.29 10.76
Appliances A rated cold appliances (1)-
A rated wet appliances (1)-
iDTVs (1)-
PC mains panels 25 25 25 8 6 33 31
Energy saving kettles 17 17 17 6 4 23 21
LNBs 10 10 10 3 2 13 12
A++ cold appliances 100 100 100 30 23 130 123
A++ wet appliances 100 100 100 30 23 130 123
Microgen Photovoltaic panels (2.5 kWp) 6,338 6,338 6,338 285 216 6,623 6,553
Micro wind (1 kWp, 10 per cent. LF) 3,200 3,200 3,200 251 190 3,451 3,390
Micro hydro (0.7 kWp, 50 per cent. LF) 1,890 1,890 1,890 216 163 2,106 2,053
Mini-wind 5 kW, 20 per cent. LF 21,000 21,000 21,000 315 239 21,315 21,239
mCHP (80 per cent. heat, 15 per cent. elec) 600 563 623 119 96 681 719
Other RTDs 20 20 20 6 5 26 25
Advice only 35 35 35 11 8 46 43
(1) No longer eligible

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