income generation from solar pv

As explained in our section ‘How the FiT works’, there are clear financial benefits from the installation of a solar PV system – the FiT (generation tariff), savings in your bill, and payment for export. The amount that you get from each of these elements is determined primarily by how much electricity you generate, and secondly by how much you use on site.

For the purpose of our financial calculations we can accurately estimate how much electricity you will generate annually (based on system size – kWp, orientation of the system, and the elevation of the roof) – we use this figure to calculate how many ‘generation tariffs’ you would receive, and we also assume that you would use 50% of the electricity on site – saving 12p/kWh, and export 50% at 3p. This provides us with a total annual return, from which we can calculate the payback period, and return on investment for the system we have designed for you.

Within our calculations we make no allowance for RPI adjustments to the generation tariff and export tariff, or the increasing cost of electricity – all of which would act to increase your return on investment, and shorten your payback period.