Physics

Arthur Rosenfeld, 'godfather' of energy efficiency who helped consumers save billions on electric bills, dies at 90

Arthur Rosenfeld, 'godfather' of energy efficiency who helped consumers save billions on electric bills, dies at 90

California’s role as a world leader in energy efficiency can be traced in good part to a laboratory in Berkeley where a physicist named Arthur Rosenfeld spent much of his career searching for new ways to conserve power and then campaigning for their use.

His efforts were so far-reaching that — as his ideas and practical conservation methods swept the nation — he was credited with saving American consumers billions on their energy bills.

Rosenfeld died Jan. 27 at age 90 in Berkeley, not far from the Lawrence Berkeley National Laboratory where he became known as the “godfather” of energy efficiency.

The slight, bespectacled Alabama native also was a commissioner at the...

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