STCs are part of the government’s commitment to renewable energy. STCs are created when you install and commission qualifying solar hot water, solar/wind power systems or residential solar power systems. Each STC represents 1 MWh (Megawatt hour) of energy produced. The number of STCs you are eligible for varies depending on the size of the system you install and your location. STCs have a market value (which may vary over time) and are tradable; they can be sold, or used to get a discount or cash. Solahart offers an up front discount on the price of a solar power system in return for the STCs.