What fuel sources are approved for the Maryland RPS Program?
Fuel sources are divided in to two categories, Tier 1 and Tier 2. Tier 1 includes solar, wind, qualifying biomass, methane from a landfill or wastewater treatment plant, geothermal, and ocean, including energy from waves, tides, currents, and thermal differences. Hydroelectric power plants less than 30 megawatts in capacity are also Tier 1. Tier 2 includes hydroelectric power other than pump storage generation, poultry litter, and waste-to-energy.