NV Energy, part of billionaire Warren Buffett’s Berkshire Hathaway conglomerate, achieved a 31.3% “renewable credit level” based on total energy sales in its northern Nevada service area and a 21.2% level in its southern service area that includes Las Vegas.

Kevin Geraghty, vice president of energy supply, asserts that complying with the mandate is important, but the utility’s motivation has been to be environmentally responsible and to keep costs to customers as low as possible.

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