Driving around business parks and industrial estates (as I do..), I am frequently struck by how many flat roofed industrial buildings there are, and how few of them have solar panels on them.
Flat roof solar tends to cost slightly more than sloping roof solar, but it's still worth doing - payback times of 7-9 years are typical, versus an expected life of 20-30 years.
In simple terms the lifetime cost per kWh generated is around 4.5p. With the Feed-in Tariff subsidy that falls to around 3p per kWh!
You really should want one...
3p per kWh is pretty amazing, particularly when compared to a grid cost of 10-15p per kWh and rising. So if your premises has a flat roof, don't dismiss it. Call us and we'll assess the viability of the installation for you.
In the mean time, here are a few key things to be aware of, including the optimal panel slope, the optimal orientation, fixing type, ballast, and roof warranties.