Renewable Energy Installer October 2016 | Page 29

Cost comparison of heating fuels ( not including RHI payments )
RHI non-domestic rates
Domestic RHI deployment
Domestic RHI tariffs

Cost comparison of heating fuels ( not including RHI payments )

Fuel source kWh provided per unit of fuel
Efficiency of system (%)
Units consumed by house ( kWh )
Price per unit of fuel (£)
Units consumed per annum
Cost per annum
Heating oil ( kerosene )
10 per litre
90
25300
0.31 per litre
2530 litres
£ 784
Wood pellets
4800 per tonne
94
24300
256 per tonne
5 tonnes
£ 1,280
Natural gas
1 per kWh
90
25300
0.04 per kWh
25300 kWh
£ 1,012
LPG
6.6 per litre
90
25300
0.38 per litre
3833 litres
£ 1,457
Electricity
1 per kWh
100
23000
0.14 per kWh
23000 kWh
£ 3,220
* Air source heat pump
1 per kWh
290
7931
0.14 per kWh
7931kWh
£ 1,110
* Ground source heat pump
1 per kWh
360
6389
0.14 per kWh
6389kWh
£ 894
Dual mode system 1 Oil boiler ( 30 % of heat load )
10 per litre
90
7590
0.31 per litre
759 litres
£ 235
* Air source heat pump
1 per kWh
290
5552
0.14 per kWh
5552 kWh
£ 777
( 70 % of heat load )
Dual mode system 2 Gas boiler ( 30 % of
1 per kWh
90
7590
0.04 per kWh
7590 kWh
£ 304
heat load )
* Air source heat pump ( 70 % of heat load )
1 per kWh
290
5552
0.14 per kWh
5552 kWh
£ 777
Based on 23,000kWh needed to meet typical household ’ s heating and hot water needs per annum . Prices and costs are indicative only and may vary .
* Calculations based on continuous operation at maximum efficiency . Fuel costs taken from Nottingham Energy Partnership and other sources .

RHI non-domestic rates

Tariff name
Eligible technology
Eligible sizes
Tariff rate
( pence / kWh )
Tariff duration

Domestic RHI deployment

Small biomass
Solid biomass : Municipal solid waste ( inc CHP )
< 200kWth Tier 1 : 3.10 Tier 2 : 0.82
20
Technology
Accreditations ( Aug 31 )
% of total
Medium biomass
Solid biomass : Municipal solid waste ( inc CHP )
200kWth and above , < 1000kWth
Tier 1 : 5.24 Tier 2 : 2.27
20
ASHP 23,724 47
GSHP 7,400 15
Large biomass
Solid biomass : Municipal solid waste ( inc CHP )
1000kWth and above
2.05 20
Biomass 11,939 23
Solar thermal
7,864 15
Small ground source
Ground source heat pumps , water source heat pumps , deep geothermal
< 100kWth Tier 1 : 8.95 Tier 2 : 2.67
20
TOTAL 50,927 100
( Source : DECC )
Deep geothermal
Solar collectors Air source heat pumps
( Source : OFGEM )
Number of MCS registered installers per technology
5.14
Solar collectors < 200kWth 10.28 20
ASHPs All 2.57 20
Number of MCS registered installations per technology

Domestic RHI tariffs

Technology type Cumulative Registered Sept 16
Solar PV 1,838 13 Biomass 547 0 Air source heat HP 979 7 Ground source HP 683 2 Solar thermal 755 1 Small wind 54 0 Total 2,519 23 ( Figures supplied by Gemserv )
Technology type Cumulative Installed
Sept 16
Solar PV
883,581
4,461
Biomass
17,065
51
Air source HP
49,539
466
Ground source HP
13,594
92
Solar thermal
8,683
64
Small wind
5,061
2
Total
955,615
4778
Technology RHI rate ( from 1 July ) ( p / kWh )
ASHP 7.51 Biomass boilers 4.68 GSHP 19.33 Solar thermal 19.74
( Source : DECC )
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