Herald: Hunter households would feed renewable energy back into the electricity grid if greater financial incentives existed, industry and community advocates believe. About 150 of the 1300 homes in NSW presently feeding electricity back into the grid are in the Hunter. The figure has grown significantly in the past 18 months with more than 550 megawatt hours deposited across NSW in the past 12 months. But the cost of installing an average two-kilowatt system, about $12,000 …