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Utilities Feeling Rooftop Solar Heat Start Fighting Back

If you wonder why America’s utilities are rattled by the explosive growth in rooftop solar -- and are pushing back -- William Walker has a story for you.

A flip-flop wearing Walker stands in his driveway pointing to a ubiquitous neighborhood feature – solar panels on the roofs of five of six houses nearby. He lives in Ewa Beach, a development on the sultry leeward coast of the Hawaiian island of Oahu built on land cleared of sugar cane fields.