Today the major solar incentives are the cost savings accruing through net-metering systems, according to an article from Building Operating Management on the FacilitiesNet website.
With net metering, solar power provides electricity to users directly, in their own buildings, so they are charged only for the amount of energy they pull from the electrical grid.
If a solar system produces more energy than a user needs, that energy is exported to the grid, the customer’s power meter spins backward, and the customer will get credit for that energy at the retail rate.
Most investor-owned utilities, which are regulated at the state level, have net-metering rules. Energy cooperatives and municipal utilities are self-regulating and may use buy-all/sell-all arrangements.