Sample survey
See how it works for one of London's Blue Plaque properties
221b Baker Street, London, NW1 6XE*
* - London address of the fictional detective Sherlock Holmes, created by author Sir Arthur Conan DoyleBuilding type
Mid terrace house
No. of bedrooms
3
Viable roof space
863 m2
Roof orientation: West
The highest potential in this roof is between South and West, this roof will generate its maximum power between midday and the afternoon
Very good potential
The estimated maximum annual generation for this property is 92,031 units of electricity (kWh), that places the property in the top quarter for all domestic homes in London
Costs & savings
How much would a full installation cost for this property & how long would it take before this system paid for itself?
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Your quote
Installation cost
£104,179
Based on
an installation covering 100% of the viable roof space
Annual savings
£1,153
Based on
an average electricity bill for a 3 bed home
Payback period
91 years
Based on
Savings from electric bill for 3 bed home. Without earnings from export to grid or grant to fund installation costs
Yesterday
How much electricity would this property have generated yesterday?
The roof would have generated
515400
Watts
That's enough to power all these appliances for free
Washing machine
Dishwasher
Grill/hob Oven
Immersion heater
a smart phone (charge)
broadband router
tablet (charge)
extractor fan
tv set top box
dvd/cd player
laptop
LCD TV
Fridge-freezer