World's Largest Solar PhotoVoltaic System
The world's largest rooftop solar power station is being built in Spain. The 12 megawatts of power covers an area of around 2 million square feet. The roof space is owned by General Motors but is being leased out to Veolia Envirnoment and Clairvoyant Energy.
The £40 million investment will see an output of more than 15 million kilowatt hours.
This shows that PV is a very viable prospect for commercial investment. Obviously smaller systems are available for domestic and commerical premises. Typical installations range from 1kW to 20kW peak power. Installation costs are typically around £5500 per kW. In a good position each kW of peak power should generate around 800kWh per year.

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