Published June 2016
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- UNS Electric, Inc., is a small utility serving approximately 93,000 ratepayers in Santa Cruz and Mohave Counties in Arizona.
- The utility faces challenges in paying for fixed assets with a declining demand and a business model built on increasing energy consumption.
- As a remedy, UNS is applying for a rate change focused on increasing the cost of electricity for small volume electricity users, especially those that may benefit from net-metering policies for distributed (primarily solar) generation.
- Although the utility is small, the rate case is being closely watched, as it may be precedent setting for other utilities.
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- The Arizona Energy Efficiency Resource Standard (EERS) requires regulated electric utilities with an annual revenue of more than $5 million to achieve a cumulative energy savings of 22 percent by 2020, based on historical customer demand. The incremental savings began in 2011 at 1.25% of the previous year’s retail sales. Regulated gas utilities have a similar requirement of 6 percent cumulative energy savings by 2020, also based on historical consumer demand.
- On November 4th, 2014, the Arizona Corporation Commission (ACC) staff filed a draft amendment to the state EERS that would have the effect of rescinding the mandatory Standard. Instead, gas and electric utilities would be allowed to determine their own custom energy efficiency goals each year, on the basis of cost-effectiveness, during their bi-annual integrated resource planning (IRP) process. The IRP is non-binding.
- The public has until Tuesday, November 18th, 2014 to submit comments to the ACC regarding the proposal. (Comment submission information can be found at the end of this document).
- Currently, the Societal Cost Test is used to verify all energy efficiency programs under the EERS. The amended goal would allow the Commission to use three other tests to determine cost effectiveness:
o The Participant Cost Test
o The Ratepayer Impact Cost Test
o The Utility Cost Test