Ohio's new utility restructuring law, which went into force in July, includes a provision that allows for large scale turbines to be used for net metering. Net metering allows customers to generate their own power and to trade power back to the utility when their supply exceeds demand. Unlike most other states, Ohio does not designate an arbitrary cap on the size of the generator. Rather, the generator must be sized to meet the customer's own load. Iowa also allows this approach, which has resulted in sales of single turbines to a number of schools and rural factories. In a unique twist, Ohio's law also allows fuel cells and micro turbines using any fuel to be net metered. A proposed Renewables Portfolio Standard failed to be included in the legislation.