> 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. I've long thought that a home "gasometer" system should be viable - miniature version of those used here for coal gas in days of yore. . Electrolyse water to Hydrogen and store enough for a few days heating demand. Oxygen a bonus. Done well any inefficiencies turn up as heat. Some dangers storing Hydrogen like this but should be manageable. No great pressures involved. Russell -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist