This premium is also affected by the general lack of availability of credible off-takers in the market. In some markets, however, where short term supply has overtaken demand, long-term prices are competitive and can actually be better than spot prices. References External links Database of State Incentives for Renewables & Efficiency (DSIRE). New Jersey SREC Program Maryland SREC Program Pennsylvania Alternative Energy Credit (AEC) Program Carbon finance Climate change in the United States Renewable energy certification Solar power in the United States