Energy Tariff Comparison Report

2024-04-01 to 2025-03-31

Benchmark cost against the Ofgem Energy Price Cap

£49,447
Average £1,498 per home
Fixed costs:
ⓘ
Annual fixed costs for connection and capacity. Includes standing charges and capacity charges.
£6,418
Import cost:
ⓘ
Cost of all electricity use, at the grid import rate, before solar savings. 26.3p per kWh, 204,568 kWh
£53,822
Solar export value:
ⓘ
Revenue from all solar generation, at the Feed-in-tariff export rate, before behind-the-meter savings. 7.4p per kWh, 76,030 kWh
£5,619
Solar BtM uplift:
ⓘ
Additional value from matched behind-the-meter solar, at the difference between the import and export rates. 18.9p per kWh, 27,351 kWh
£5,175
Total cost (incl. fixed):
ⓘ
Total cost including fixed charges, import costs, less solar exports and other credits.
£49,447
Fixed: £189/home/year • Imports: 204,568 kWh at 26.3p/kWh • Solar: 76,030 kWh at 7.4p/kWh • BtM Uplift: 27,351 kWh at 18.9p/kWh

Water Lilies Customer Tariff (what customers pay)

£37,822
Average £1,146 per home
Saved £2,028.2 versus Octopus
Fixed costs:
ⓘ
Annual fixed costs for connection and capacity. Includes standing charges and capacity charges.
£5,134
Import cost:
ⓘ
Cost of all electricity use, at the discounted microgrid rate, before solar savings. 21.0p per kWh (20% discount), 204,568 kWh
£43,057
20% discount
Solar microgrid credit:
ⓘ
Revenue from providing your solar installation to the microgrid, at the microgrid solar usage rate. £85/kWp/year
£10,370
Total cost (incl. fixed):
ⓘ
Total cost including fixed charges, import costs, less solar exports and other credits.
£37,822
Fixed: £151/home/year • Imports: 204,568 kWh at 21.0p/kWh • Microgrid credit: £85/kWp/year

Octopus Cosy Tariff

£39,850
Average £1,208 per home
Fixed costs:
ⓘ
Annual fixed costs for connection and capacity. Includes standing charges and capacity charges.
£6,418
Import cost:
ⓘ
Cost of all electricity use, at the grid import rate, before solar savings. 22.9p per kWh, 204,568 kWh
£46,854
Solar export value:
ⓘ
Revenue from all solar generation, at the Octopus Outgoing rate, before behind-the-meter savings. 15.0p per kWh, 76,030 kWh
£11,404
Solar BtM uplift:
ⓘ
Additional value from matched behind-the-meter solar, at the difference between the import and export rates. 7.9p per kWh, 27,351 kWh
£2,018
Total cost (incl. fixed):
ⓘ
Total cost including fixed charges, import costs, less solar exports and other credits.
£39,850
Fixed: £189/home/year • Imports: 204,568 kWh at 22.9p/kWh • Solar: 76,030 kWh at 15.0p/kWh • BtM Uplift: 27,351 kWh at 7.9p/kWh

Water Lilies Market Tariff (what CESCo pays)

£37,953
Average £1,150 per home
Saved £1,897.4 versus Octopus
Fixed costs:
ⓘ
Annual fixed costs for connection and capacity. Includes standing charges and capacity charges.
£8,089
Import cost:
ⓘ
Cost of all electricity use, at the grid import rate, before solar savings. 19.2p per kWh, 204,568 kWh
£39,356
Solar export value:
ⓘ
Revenue from all solar generation, at the grid export rate, before behind-the-meter savings. 7.3p per kWh, 76,030 kWh
£5,578
Solar BtM uplift:
ⓘ
Additional value from matched behind-the-meter solar, at the difference between the import and export rates. 8.6p per kWh, 45,584 kWh
£3,915
Total cost (incl. fixed):
ⓘ
Total cost including fixed charges, import costs, less solar exports and other credits.
£37,953
Fixed: £238/home/year • Imports: 204,568 kWh at 19.2p/kWh • Solar: 76,030 kWh at 7.3p/kWh • BtM Uplift: 45,584 kWh at 8.6p/kWh