92% of our customers are happy to recommend us to their friends and neighbours

We'll do the maths...

While the Feed in Tariff is still high, but with our prices down by as much as 30%, our customers can expect great returns up to 10% on their South facing roofs.

For a very quick estimate of what returns you can expect if you instal solar panels on your roof, just answer these four quick questions about your roof. You can then download the estimate, take it way to compare to other solar providers, and then hopefully come back to us for a proper quote. Please note: Our estimate will be based on the 21p tariff.

For more information on exactly what is happening with the UK solar domestic Feed-in Tariff, ready Dr Toby's blog.

Check out our gallery of installations to date and what our customers say about us or find out why we think you should choose Engensa.

The Cost

Installation costs hint

The installation cost is estimated based on the size of your roof and the number of panels you can fit on it. It assumes your roof is accessible and that we can easily erect scaffolding to get to it. We’ll need to do a (free) design visit before we can finalise and fix the price.

The Return

Per year hint

The annual return is made up of two sources: REVENUE from the Feed-in Tariffs and SAVINGS on your electricity bill:

To calculate revenue per year, we take the government's estimate of how much solar energy falls on a set area facing the same direction as your roof and multiply this with the size of your potential installation to work out how many kilowatt hours you would generate each year (kWh). Multiply this by the current Feed-in Tariff to get your annual revenue.

To calculate savings on your bill, we take the same estimate of kW hours and use the government assumption that you use half of this electricity in your home and export half of it back into the Grid: this means for 50% of your generation you will get an additional 13p because you don't need to buy this kWh from a horrible utility and for the other half, you get 3p for every kWh you export...

The savings and the revenue are added together to get your return.

Over 25 years hint

Because the Feed in Tariff (the government subsidy that the electricity companies pay you for generating your own green, electricity) is fixed for 25 years, we’ve simply multiplied the estimated annual return by 25.

On investment hint

This is an approximate return on investment calculated by dividing the installation cost by the annual return and to get a basic % return on investment each year.