ABCDEFGHIJKLMNOPQRSTUVWXYZ
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
Total gas use per household per year kWh
 12,100
https://assets.publishing.service.gov.uk/government/uploads/system/uploads/attachment_data/file/1008727/Consumption_headline_EW_2019.xlsx
49
Share used for cooking2%
https://www.gov.uk/government/statistics/energy-consumption-in-the-uk-2020
50
Average boiler efficiency85%
https://assets.publishing.service.gov.uk/media/5a75149be5274a3cb28697f7/In-situ_monitoring_of_condensing_boilers_final_report.pdf
51
Heat used per household per year kWh 10,038
52
Cost gas £/kWh0.0634
https://www.ofgem.gov.uk/energy-price-cap
53
Cost elec £/kWh0.2486
https://www.ofgem.gov.uk/energy-price-cap
54
Standing charge gas £115.559
https://www.ofgem.gov.uk/energy-price-cap
55
Cost elec Octopus £/kWh0.2368
Average based on last month price data https://agile.octopushome.net/historical-data
56
Cost elec OVO £/kWh0.15
https://www.ovoenergy.com/heat-pump-plus
57
Cost elec Octopus Cosy £/kWh0.203852
18% average savings compared to standard rate according to https://cdn.sanity.io/files/lrxd4jqj/production/85b1357ec84918b3b6e42b694f60b067c3f683fb.pdf
58
59
Savings from heat pump on standard tariff
60
Heat pump standard tariff
Heat pump Octopus Agile
Heat pump Octopus Cosy
Heat pump OVO Heat Pump tariff
Gas boiler 92%Gas boiler 85%£%
61
2.5 £ 998 £ 951 £ 819 £ 602 £ 807 £ 864 -£ 134 -15%
62
2.6 £ 960 £ 914 £ 787 £ 579 £ 807 £ 864 -£ 96 -11%
63
2.7 £ 924 £ 880 £ 758 £ 558 £ 807 £ 864 -£ 60 -7%
64
2.8 £ 891 £ 849 £ 731 £ 538 £ 807 £ 864 -£ 27 -3%
65
2.9 £ 861 £ 820 £ 706 £ 519 £ 807 £ 864 £ 4 0%
66
3.0 £ 832 £ 792 £ 682 £ 502 £ 807 £ 864 £ 32 4%
67
3.1 £ 805 £ 767 £ 660 £ 486 £ 807 £ 864 £ 59 7%
68
3.2 £ 780 £ 743 £ 639 £ 471 £ 807 £ 864 £ 84 10%
69
3.3 £ 756 £ 720 £ 620 £ 456 £ 807 £ 864 £ 108 13%
70
3.4 £ 734 £ 699 £ 602 £ 443 £ 807 £ 864 £ 130 15%
71
3.5 £ 713 £ 679 £ 585 £ 430 £ 807 £ 864 £ 151 18%
72
3.6 £ 693 £ 660 £ 568 £ 418 £ 807 £ 864 £ 171 20%
73
3.7 £ 674 £ 642 £ 553 £ 407 £ 807 £ 864 £ 190 22%
74
3.8 £ 657 £ 626 £ 538 £ 396 £ 807 £ 864 £ 208 24%
75
3.9 £ 640 £ 609 £ 525 £ 386 £ 807 £ 864 £ 224 26%
76
4.0 £ 624 £ 594 £ 512 £ 376 £ 807 £ 864 £ 240 28%
77
4.1 £ 609 £ 580 £ 499 £ 367 £ 807 £ 864 £ 256 30%
78
4.2 £ 594 £ 566 £ 487 £ 359 £ 807 £ 864 £ 270 31%
79
4.3 £ 580 £ 553 £ 476 £ 350 £ 807 £ 864 £ 284 33%
80
4.4 £ 567 £ 540 £ 465 £ 342 £ 807 £ 864 £ 297 34%
81
4.5 £ 555 £ 528 £ 455 £ 335 £ 807 £ 864 £ 310 36%
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119