Solar Panel Case Study - PV with differering orientations


In order to maximise the available roof area on this semi-detached property in West Sussex a PV system was specified consisting of 6 x 295W mono crystalline HHV modules to give a total of 1.77 kWp.

The modules were mounted on the SW and SE roofs. 3 x Mastervolt Soladin 600 inverters were installed in order to best optimise the system during times of differential shading.

Annual yield expected 1,393 kWh Total energy yield over 25 years expected 34,010 kWh Total CO2 offset over 25 years expected 18,387 kg Total FIT earnings over 25 years expected £15,226


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Feed in Tariff scheme

The FIT is a scheme in which owners of PV systems are rewarded for every unit of electricity they generate, irrespective of whether they are used on site or not.

This is known as the Generation Tariff and is currently under review. Payments are also made for 50% of every unit generated by the PV system. This is known as the Export Tariff and is currently under review. These payment rates are fixed for 20 years, linked to the Retail Price Index (RPI) and are tax-free. PV systems installed from 1 August 2012 will be subject to an approximate 7% decrease in the FIT rates.

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Frequently Asked Questions

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Read our dedicated Photovoltaic FAQ section that answers the most common queries.

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