The price premium charged for competitive-market products depends on several factors including the price of standard offer or default service, the availability of incentives to green power marketers or suppliers, and the cost of renewable energy generation available in the regional market. Some marketers have charged prices close to or even below the default market price in recent years (., in Texas); others have offered fixed-price products, providing customers with protection against increasing prices for a specified period of time, usually one year. Competitively marketed green power products generally carry a price premium of between 1¢/kWh and ¢/kWh for.
