4 bed home, Bedfordshire
This 4-bed executive home in Bedfordshire had a 2.22kW system installed in roof in May 2010, which is generating around 1,851 kWh per year. The system works in conjunction with an air source heat pump and heat recovery ventilation to provide a whole house solution.
Installation Date: May 2010
Number of panels: 12 – In roof
Installation time: 3 days (longer installation because the system is in roof)
Total kWp: 2.22 kW
Estimated kWh: Average 154kWh per month / 1,851kWh per annum
Annual benefit: £912.54
Inverter: Fronius IG20
Orientation / Pitch: South, 45 degrees
For more information, please visit www.pv.mitsubishielectric.co.uk.
The performance of PV systems is impossible to predict with certainty due to the variability in the amount of sunlight in different locations of the UK and from year to year.
This is index linked, and assumes that 50% of electricity is generated by the PV array, and 50% is exported back to the grid. Based on an average of 9p per kWh charged by the energy supplier.
This estimate is based upon the Government's standard assessment procedure for energy rating of buildings (SAP) and is given as guidance only. It should not be considered as a guarantee of performance.