A 1 MW wind turbine at a capacity factor of 40% would generate 9600 kWh per day enough for 542 of our households above. A 1 kWp share would generate 9.6 kWh/day.
Operating for 20 years such a turbine costs about £3 million per MW (£3000/kWp). Even though the project cost is almost twice that of solar, the higher capacity factor will mean the wind turbine will generate over 3 times as much energy resulting in a lower electricity cost of 4.5p/kWh. It will also generate electricity more consistently and at more useful times of the year when demand is highest.
Generating 17.7 kWh/d from wind would cost about £5,530 or only 8% of our budget.
Wind power is more consistent than solar with a higher capacity factor and better matching with winter heat demand. A share of a wind turbine generating 17.7 kWh/d would meet 75% of the demand.