To: Frank A. Coluccio who wrote (34549 ) 7/20/2010 7:56:53 PM From: Maurice Winn 1 Recommendation Respond to of 46821 Frank, the answer to wind-driven power surges is price [as it is for other surges in demand]. Hot water cylinders could be turned on and off according to the available supply. People could agree to buy electricity for water heating at a certain price. When that price is reached, their system would start using electricity. < the inability of the T&D (transmission & distribution) parts of the grid to deal with surges caused by the unpredictability of some renewable energy forms. > People could increase or reduce their bid price by simply twirling a dial, or, with new-fangled gadgets, entering digits from their cyberphone wherever they are [having got a text message that their hot water is looking a bit chilly and they might like to turn it up if they are going to be home in half an hour as usual]. Aluminium smelters could have another line ready to switch on as the expected gale force winds arrive at the turbines.... Electric car battery recharging centres would take a lot of off-peak electricity. Price variations can handle the lumpy supply. Right now, I'd like to turn on 20 kilowatts for half an hour. But there is no price variation option for me to select. Mqurice PS: My uncle 50 years ago was growing tomatoes [and before but that's when I became aware of it], so I have always been aware of prices, markets and "use by" dates. I grew chokos and he helped me with how to get them to market - very easy = get one from Grandma's, plant it, wait, pick them, put them in boxes, he and I went to the market and unloaded, people bid, I got cash. It was good fun. My uncle built glass houses so that the "act of Go-" frost problem you mentioned was not a problem. With air and soil chemistry and temperatures and hydration well-controlled, along with pests, his tomato quality was high, along with prices, and G-d wasn't needed as part of the production process.