Capacity markets for power in the US are not broken, grid operatorofficials and company executives said Wednesday, but they will need toevolve as more zero-marginal cost renewable resources are added tothe system and state policy continues to impact competitive markets.Capacity markets have done a good job in the eastern US atattracting investment in the incremental power generation resourcesneeded to ensure there is ample supply in the markets to meet peakdemand and provide a cushion, according to grid operator officials. Allthree eastern ISO markets currently have healthy power supply reservelevels, the officials told S&P Global Platts' Financing US PowerConference in New York.
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