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NSP-Wisconsin
Recently Concluded Regulatory Proceedings — PSCW
NSP-Wisconsin – Wisconsin 2016 Electric and Gas Rate Case — In May 2015, NSP-Wisconsin filed a request with the PSCW
seeking an increase in annual electric rates of $27.4 million, or 3.9 percent, and an increase in natural gas rates of $5.9 million, or 5.0
percent, effective Jan. 1 2016. The rate filing was based on a 2016 forecast test year, a ROE of 10.2 percent, an equity ratio of 52.5
percent and a forecasted average rate base of approximately $1.2 billion for the electric utility and $111.2 million for the natural gas
utility.
In December 2015, the PSCW approved an electric rate increase of approximately $7.6 million, or 1.1 percent, and a natural gas rate
increase of $4.2 million, or 3.6 percent, based on a 10.0 percent ROE and an equity ratio of 52.5 percent. New rates went into effect in
January 2016. As shown below, NSP-Wisconsin received approximately 65 percent of the non-fuel and purchased power portion of its
requested electric rate increase and 71 percent of its requested natural gas rate increase.
The major components of the requested rate increases and the PSCW’s approval are summarized as follows:
Electric Rate Request (Millions of Dollars) NSP-Wisconsin
Request PSCW Approval
Capital investments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . $ 23.0 $ 13.9
ROE & other capital structure adjustments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . — (3.8)
Generation and transmission expenses (excluding fuel and purchased power). . . . . . . . . . . . . . . . 37.2 42.7
O&M expenses. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11.1 3.2
Sales forecast . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . (27.0) (27.0)
Rate increase - non-fuel and purchased power . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44.3 29.0
Rate reduction - fuel and purchased power . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . (16.9) (21.4)
Total electric rate increase . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . $ 27.4 $ 7.6
Natural Gas Rate Request (Millions of Dollars) NSP-Wisconsin
Request PSCW Approval
Capital investments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . $ 3.7 $ 3.7
ROE & other capital structure adjustments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . — (0.4)
O&M expenses. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3.2 1.9
Environmental remediation expenses. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2.9 2.9
Sales forecast . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . (3.9) (3.9)
Total natural gas rate increase . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . $ 5.9 $ 4.2
PSCo
Pending and Recently Concluded Regulatory Proceedings — CPUC
PSCo – Colorado 2015 Multi-Year Gas Rate Case — In March 2015, PSCo filed a multi-year request with the CPUC to increase
Colorado retail natural gas base rates by $66.2 million over three years. The request was based on a HTY ended June 30, 2014
adjusted for known and measurable expenses and capital additions for each of the periods in the MYP and an equity ratio of 56
percent. In addition, PSCo requested an extension of its PSIA rider through 2020 to recover costs associated with its pipeline integrity
efforts. The rider would recover incremental revenue of $42.8 million over three years.