Arizona regulators mull controversial changes to rooftop-solar policy

Customers of Tucson Electric Power and other Arizona utilities could face much lower bill credits for excess solar energy they export to the grid.

David Wichner

Customers of Tucson Electric Power and other Arizona utilities looking to install rooftop solar systems could face much lower bill credits for excess energy they export to the grid, as state utility regulators look to review such credits next week.Solar supporters say a move by the Arizona Corporation Commission to reduce so-called solar export rates would reverse a carefully crafted, six-year-old commission policy decision and hamstring the state’s burgeoning solar energy industry.But Commission member Nick Myers, a Queen Creek Republican, is leading a drive to allow deeper cuts to the solar export rate, arguing that the current rates essentially result in a subsidy of rooftop solar customers by customers without solar.In August, the ACC voted to drop solar export rates by the maximum 10% allowed annually for rooftop solar energy systems installed by customers of TEP, Arizona Public Service Co. and TEP sister utility UniSource Energy Services.

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