Your roof can pay your electricity bill

Depending on system size, self-consumption rate and electricity price, residential systems typically pay back in 5–8 years and commercial systems in 3–5 years. With a service life of 25–30 years, the remaining years are practically free electricity.

No. South gives the highest total yield, but east-west roofs produce only about 10–15 % less and spread production more evenly over the day, which often increases self-consumption. Only north-facing pitched roofs are usually unsuitable.

On cloudy days the system still produces, just less. At night and whenever solar is not enough, grid-connected homes automatically draw electricity from the grid — or from the battery if one is installed. You never need to switch anything manually.

Not when installed correctly. On tiled roofs we use roof hooks that sit under the tiles without drilling through them; on metal roofs we use sealed clamps or rail fixings with EPDM gaskets; flat roofs can be ballasted with no penetrations. We give a workmanship warranty on all roof work.

Modules usually come with a 12–15-year product warranty and a 25–30-year linear performance warranty; inverters with 5–10 years (extendable); LiFePO4 batteries with 10 years. In addition, we provide our own workmanship warranty on the installation.