The Missouri Public Service Commission (PSC) approved a proposal by Ameren Missouri to update a voluntary program which gives consumers the opportunity to finance the purchase renewable energy credits (REC). Ameren charges customers $15 per credit, including the ability to purchase amounts equal to their monthly usage or select a set number of RECs per month. The PSC said that price was about average for such programs in the United States. For complete regulatory coverage, citations, and analysis, subscribe to Utility Regulatory News http://www.fortnightly.com/urn-subscribe