Of the 11 states that do not set voluntary or mandatory requirements on how much green energy utilities must buy, eight of those states are clustered in the Southeast.Conservative politicians in the Southeast typically oppose government mandates and worry the efforts could raise energy prices in a recession and hurt manufacturing jobs.In deriving these energy standards, the DLI was to seek to balance energy savings with initial construction costs.
The practical use of these systems varies with the specific technology, application, location, cost of energy, and other factors.
To stimulate development of new renewable energy projects, Executive Order 13693 requires federal agencies to explore on-site renewable energy generation at their facilities.
Many states around the nation have implemented renewable portfolio standards (RPS) mandating a minimum fraction of renewably generated energy in all electricity sold.
The companies can meet that requirement in part by taking steps to decrease electricity use.
The earliest standard was created in 1983, although analysts at the Pew Center say most states created or strengthened their rules after 2000.