Our homes make up 20% of the CO2 emissions throughout the United States. Help increase your energy efficiency. Beginning Friday, March 26, 2010, Ohio residents can be rewarded for the purchase of an ENERGY STAR appliance! By upgrading your appliances to ENERGY STAR, and recycling your old ones, you are saving a TON on energy bills! Rule of thumb, if your current appliance is 10 years or older, it is definitely time to upgrade to ENERGY STAR.