Reuters: An energy company in Israel plans to launch a solar farm this month using new technology it says can produce cheap and efficient electricity while supplying hot water to homes. As with all solar energy systems, investors and consumers may be turned off by high initial costs and the need for strong sunlight. But if the commercial pilot works, Israeli start-up ZenithSolar plans to make small units for homes in two years. ZenithSolar CEO Roy Segev says its energy dish can …