Arizona Utility Blinks in Bitter Battle Over Rooftop Solar

Arizona’s biggest utility, Arizona Public Service, is withdrawing its bid to jack up monthly fees for rooftop solar users in its territory.  The retreat, tendered last week to the Arizona Corporation Commission (ACC), capped an eventful month in the high-stakes battle between utilities and solar advocates that's raging across Arizona rooftops.  The party with the most bruises is not Arizona Public Service (APS), however, but the ACC itself.  The elected body referees the state's power markets, but all five of its commissioners now face accusations of bias that challenge their ability to fairly adjudicate the rooftop solar dispute.

Arizona’s solar dispute is hot, but not unique.  Across the United States utilities are fighting to contain or eliminate “net metering” policies that pay rooftop solar users retail prices for the surplus power that their panels export to the grid (thus offsetting retail charges for power they consume at night).  Utilities argue that solar customers rely heavily on the grid but, under net metering, pay little or nothing to maintain it.  Over the past year all of Arizona’s utilities levied or proposed new fees for customers installing rooftop solar systems.  APS’s proposal worked out to about $21 per month.

Solar advocates argue that rooftop solar provides a variety of benefits to the grid—such as reducing consumption of fossil fuels and lessening reliance on distant power plants.  They see fees from utilities such as APS, which owns fossil-fueled and nuclear power plants, as unfair competition. 

In August, ACC staff sided with solar advocates’ call to defer consideration of proposed fees so they could be reviewed in the broader context of the utility’s overall business.  When the ACC commissioners voted to overrule, calling for immediate hearings on solar fees, San Francisco-based solar installer Sunrun and two former commissioners filed challenges with the ACC, alleging bias. 

The bias filings allege that the two commissioners elected in 2014 allegedly benefited from $3.2 million in secret campaign donations to independent groups by APS.  The filings also cite a third commissioner elected in 2012 for inappropriate public comments about rooftop solar users.  (Earlier challenges accuse the remaining two commissioners of bias based on lobbying activities prior to their election in 2012.)

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