On our recent trip to Ireland we had problems with the truma heating since our batteries were low. The problem was that our daily mileage was only 30 -50 miles for a lot of the time so the batteries were not getting enough charge. Was chatting to the mobile m'home engineer today who suggested that I fit a solar panel. He has quoted £750 to supply and fit 180w semi flexible Austrian panel (Am short of space on roof so will be on flat and curved section) with a schaudt lrm1218 solar regulator - needs this since I have a Schaudt Elektroblock PSU. This was more than I was expecting, is this a reasonable price.