Solar Companies Value Consumer Data That Utilities Ignore at Their Peril

Lead installers for SolarCity affix solar electrical panels to the roof of a home in Palo Alto, Calif., in 2011 Photograph by Tony Avelar/The Christian Science Monitor via Getty Images

Andrew Greenfield checks his home’s solar power output against consumption through his computer and mobile phone dozens of times each day. The IBM storage engineer enjoys trying to match the power he consumes to heat his pool in Arizona with what he produces during the day from the panels on his roof.

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