Solar power in Ohio has been increasing, as the cost of photovoltaics has decreased. Ohio adopted a net metering rule which allows any customer generating up to 25 kW to use net metering, with the kilowatt hour surplus rolled over each month, and paid by the utility once a year at the generation rate upon request. For hospitals there is no limit on size, but two meters are required, one for generation, the other for utility supplied power.
Costs have decreased to the point that the average consumer may save approximately $17,527 over a 20 year period by installing solar panels. Euclid's City Hall and library installed solar panels and expects to save $25,000 over the next 15 years. The panels were installed at no cost to the city by Ohio Cooperative Solar, which is leasing the rooftops.
Ohio has a renewable portfolio standard which calls for 0.06% from solar by 2012 and 0.09% by 2013, and 0.5% from solar and 12.5% from renewable sources by 2024. Ohio used 160,176 million kWh in 2005. Approximately 75 MW is required to generate 0.5%. Covering rooftops with solar panels would generate 20% of demand.