Is Maine’s electric grid ready for a lot more renewable power? Regulators need to find out now.

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It didn’t take catastrophic power failures like those that have hit Texas this week to show that Maine’s power grid may not be ready for the promised clean energy future. To be clear, the recent massive power outages in Texas were not caused by renewable energy, as some officials have erroneously claimed. Rather, millions of Texans were without power during an unusually long stretch of freezing temperatures because of problems with natural gas supply, cost-saving measures and a power grid that is purposely disconnected from the nation’s electricity system.

In Maine, possible deficiencies in the state’s power delivery system came to light earlier this month after Central Maine Power Co. said it can’t accommodate dozens of solar projects without expensive upgrades. CMP told the solar power generators that they likely would be charged far more than the company had previously said to pay for improvements to its systems to handle the power they would add to the state’s electric network. The power company said it may need to upgrade 100 substations to accommodate the new, dispersed energy sources. CMP has since said it believes it has found lower cost alternatives, but further study is required.