The front of our house faces north, and we've had a loft conversion, so the south-facing previously sloped roof at the rear is now a flat-roofed dormer. We also have a large rear kitchen extension with a south-facing flat roof. From what I've read online, its possible to put solar panels on a flat roof but they need to be installed at an angle, and so they're more expensive. Has anyone done this? I'd be interested to hear about your experience.
We also have a combi boiler, so no water tank. Would it be necessary to install a tank? (There is a large eaves cupboard on the north side of the house, that could have space for it but, if the panels were on the kitchen roof, the wiring would have to be quite long to get there).