> Some people have "night storage" heating to take advantage of > the cheaper off-peak rates, but I was just wondering if > off-peak charging of batteries and using an inverter during > peak hours would be viable? Initial costs would be pretty > high I guess. Reality check: if this were feasible, would you think all other people / companies (especially the power companies) would not know this (and act)? I don't know the English term, but "piek schering" is one of the major problems of electric power companies. If you solve this some alternative energy sources, particularly wind, suddenly become much more attractive. Wouter van Ooijen -- ------------------------------------------- Van Ooijen Technische Informatica: www.voti.nl consultancy, development, PICmicro products docent Hogeschool van Utrecht: www.voti.nl/hvu -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist