Our first motorhome (Autocruise Starfire) and I want to fit solar power. Only the standard electrical items....lights (not LED)....water pump. Fridge will be on gas as will the water heater. At the moment we don't have a TV/DVD but do intend to get one. No hair dryers or straighteners and no inverter. We will need to charge phones /tablets and possibly look at how to run a laptop on DC but that is about for the forseeable future. Just how much solar panel wattage will be needed for three season running in the UK (long weekends mostly)? We plan to go to France for a couple of weeks in September also. I'm considering a 120W system and 10A controller (I have a cheap PWM sitting on a shelf from a prior domestic project) or at the other extreme a 250W panel (being sold by a local domestic solar installer) which is only a few pounds more than the 120W panel, and a 20A MPPT. If I go the expensive option I'd like to remove it when swapping MHs (as everyone says I will in a few years!). Is it easy to remove fixings stuck on with Sikaflex?