Solar Panel Case Study - Solar and ground source heat pump


This system involved installing a solar thermal system (120 Navitron evacuated tubes) on a barn to assist in heating a 500 litre cylinder of hot water and an outdoor pool. A Resol Differential Temperature Controller co-ordinates the operation of three pumps and two motorised valves.

A GSHP operates as the auxiliary heat source for all domestic hot water, heating and the pool.


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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

Got questions about PV systems?

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

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