AUSTIN (AP) – Energy markets were not manipulated during rolling electrical outages and the failure of dozens of power plants in early February as freezing weather blanketed parts of Texas, an independent analysis found.

The analysis was done by Potomac Economics Ltd., a consulting company that operates under contract to the Texas Public Utility Commission.

The Electric Reliability Council of Texas, ERCOT, which supervises the state’s power distribution grid, ordered the rolling outages Feb. 2, a day after an ice and snow storm rolled into the state. The severe conditions knocked out more than 80 power stations.

At times power prices spiked as much as 100 times normal rates, but the market “operated efficiently” during the freeze, the Austin American-Statesman reported Friday.

“We do not find any evidence of market manipulation or market power abuse in relation to the widespread generating unit outages,” according to the analysis, released late Wednesday.

Three other state and federal reviews are pending.

“We anticipate and are looking forward to participating in the development of a comprehensive set of actions that will serve to significantly improve the future reliable operation of the ERCOT grid,” the report said.

The analysis noted that ERCOT officials knew that although several units were scheduled to be out of service when the freezing weather hit, they apparently did not ask two of the largest power generators to delay their planned outages.

“The initiation of such a dialogue would appear to have been a reasonable action,” the report said.

John Fainter, president of the Association of Electric Companies of Texas, said it was anticipated that the report would find no manipulation or withholding of power.

“But it’s good to have that confirmed. Some people lost a lot of money, and others made it, but that’s generally how the market works,” said Fainter.

Tom “Smitty” Smith, director of the Texas office of Public Citizen, a nonprofit consumer advocacy organization, said the results of the analysis alleviated a lot of concerns.

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