Scott Waldman reports in Politico New York that the state’s independent grid operator is warning that the Cuomo administration’s expansion of New York’s renewable energy could prove expensive. Cuomo's plan would convert 50 percent of the state's electrical grid to renewable energy by 2030, and towns across the region are holding public hearings and solar moratoriums over new rules for coming solar panel farms. The New York Independent System Operator group that oversees power, is warning that so-called purchase-power agreements that allow a large number of customers to buy into a renewable energy project is a risky strategy that could lead to higher costs for consumers and other problems in a letter to the state Public Service Commission. “Such PPAs unnecessarily transfer the risk that certain resources may not be economically viable from private investors and developers to those that are unable to manage and mitigate such risk — consumers,” NYISO officials wrote. “Significantly, the [Department of Public Service] Staff White Paper does not address the reliability concerns that arise when resources are insulated from the financial consequences of their operation.” The PSC, calculating through 2023, predicts consumer energy bills would increase by less than one percent, about $1 per month. Read the full story in Politico New York.