Water heating can account for 15-18 percent of the average NSW energy bill. It’s possible to reduce these costs by upgrading to a more efficient hot water system. The NSW government is committed to helping NSW households and businesses reduce their energy costs. We are helping you receive rebates or discounts through businesses accredited under the program for replacing your old inefficient hot water system with a more efficient one. All NSW households and businesses that have an inefficient electric hot water system are eligible to participate. One of the main reasons of providing the rebate is to reduce your energy use and also to reduce the greenhouse gas emissions.