PNM Resources files general rate case

PNM Resources’ New Mexico utility, PNM, filed with the New Mexico Public Regulation Commission its request for an increase in electric rates of $123.5 million, or 14.4 percent, which if approved would take effect in the third quarter of 2016.

The net customer bill increase would average 5.4 percent when other changes, including savings from a new coal supply contract if the San Juan case is approved by the commission, are considered. PNM’s original rate case filing in December 2014 was dismissed by the NMPRC on procedural grounds.

The rate request reflects $2.5 billion in rate base, which is a $655 million increase since the 2010 rate case. The additional $655 million of investments are not currently recovered in PNM rates, and account for the majority of the company’s request, including depreciation. Key capital additions to rate base include:

·      Four new solar power centers online by 2016 (40 MW, $65 million) capable of powering 16,200 average homes;

·      La Luz Natural Gas Plant online by 2016 (40 MW, $50 million) to serve customers when demand is highest, to support renewable energy growth and to ensure reliable power under a variety of grid conditions;

·      Emission control equipment at San Juan Generating Station to comply with federal haze regulations ($58 million);

·      Critical resources for the future: Purchasing Rio Bravo Generating Station (formerly Delta Person) natural gas plant ($32 million) and purchasing leases for Palo Verde Nuclear Generating Station Unit 2 ($144 million); and

·      Investments to keep our electric system reliable, including a $61 million investment at PNM’s Rio Puerco Switching Station, $8 million to improve substation security and modernizing the company’s distribution system operations center.

Another driver is declining energy usage resulting from the still recovering New Mexico economy and energy efficiency.

In the rate filing, PNM also proposes changes to rate design to better align electric rates with the actual costs to serve customers, while encouraging energy efficiency.

Specific regulatory improvements, if approved, would include:

·      A revenue balancing account pilot program for residential and small commercial customers, also known as decoupling. This is designed to support recovery of fixed costs that are critical to reliability of service at the lowest cost to customers; and

·      An economic development tariff to support state and local efforts to retain and attract companies that provide locally based jobs.


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