3.89kW On-Roof Domestic System

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Key Points – Solar PV Installation – Retro Fit – On-Roof, Sheffield, UK
Type of Property / Building Detached house
Technology Solution Solar PV
Type of System 3.89kw On-Roof Solar PV System

The requirement

The requirement was for a large domestic solar PV array to be installed over the existing building. It was important that the size of the system did not exceed 4kwp so as to maximise the feed in tariff yield.

System configuration

System Configuration – Solar PV Installation – Retro Fit – On-Roof, Sheffield, UK
Number of PV panels 21 Panels
Output of each PV Panel 185 Watts
Weight of each PV Panel 16kg
Area of Panels 27 Square Meters
Peak Output 3.885kW Peak
Type of roof kit On roof, portrait orientation
Type of System Grid connected

Performance Benefits / Savings

Performance Benefits / Savings – Solar PV Installation – Retro Fit – On-Roof, Sheffield, UK
Energy generated per annum (estimated) 3,400 kW Hours
Annual Saving in CO2 Emissions 2,700 kg
Feed in Tariff income per annum £1,800
  • Provides 80% of annual electricity requirements
  • House has an electricity bill net gain
  • Reduced grid electricity consumption
  • Reduced carbon emissions
  • Increased property value