As the demand for renewable energy increases, compliance markets are being created to stimulate the production of renewable energy resources. State governments implement Renewable Portfolio Standards (RPS) which require a certain percentage of retail energy sales come from renewable sources. The Northeast (PJM and NEPOOL), Texas and California compliance markets have set the standard for other compliance markets. States currently participating in RPS markets that are covered by Amerex include CA, CT, DC, DE, MA, MD, ME, NJ, PA, RI, NH, OH, IL, MI, NC and TX.