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PJM Interconnection says it is studying the effects of existing wind energy on the grid and plans to make transmission improvements to handle it.

A report released recently by PJM identified nine grid stability problems at eight locations in Ohio, Illinois and Virginia resulting from conditions related to wind energy on the grid. PJM planned and authorized $97 million in transmission projects to ensure that energy from generators, such as wind power, that typically run during overnight hours can be delivered without causing stability problems.

Because the penetration of wind energy is expected to grow in the region and will be necessary to meet state renewable portfolio standards, PJM is continuing to evaluate what new transmission lines and improvements will be necessary in order to add more wind power onto the grid. The study also takes into consideration the possible impact of offshore wind and wind energy imported from other regions.

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