A proposed decision would have the California Public Utilities Commission keep many business secrets as requested by utilities but allow greater public access to information about renewable power contracts. The tentative decision notes that the commission can be more secretive than its sister agency, the California Energy Commission. That agency has been at odds with the CPUC for keeping the public in the dark about information on energy supplies. Commissioner Dian Grueneich's May 30 proposed decision would establish that "confidentiality protections are essential to avoid a repetition of electricity market manipulation" but that "market-sensitive" information is not the same as "trade secrets." Market-sensitive information would have limited protection. Only data that "would have a material impact on the market price" would remain secret. Data that are kept secret would be under seal only for a limited period - "one year backwards and three years forward," according to Grueneich.