Filings

We work with the Public Utilities Commission and other stakeholders to offer energy efficiency and conservation choices for customers

View documents and information pertaining to renewable energy in the state of Colorado.

We have submitted a proposal for Colorado’s largest wind farm, which would deliver clean, carbon-free, low-cost wind energy and boost the state’s economy.

We are working on building a smarter energy infrastructure to enhance customers’ experience, reliability, and control.

We are exploring the development of a new solar choice program in Colorado.

With decoupling, instead of linking energy profits to the amount of power sold, profits are linked to the number of customers served.

The Tax Cuts & Jobs Act (TCJA) reduced our corporate tax rates. To flow those benefits to customers, we filed adjustments that will lower your bills as of May 1, 2018.

The reliability of electricity is important. See how we are making improvements and working with regulators to bring more predictability to your energy bills.

As an update to this original filing, we proposed a new strategy which will accelerate our transition from coal-based generation while continuing to ensure a reliable energy system.

Proposed pilot program in two areas of the Twin Cities may help customers save on their bills.

We are required to report by November 1 of each odd numbered year on the status of the transmission system, including identifying possible solutions to anticipated inadequacies in the transmission system.

The 2013-2015 Triennial Plan fulfills our compliance with Minnesota Statute §216B.241, subd. 2(a), requiring us to file conservation improvement program plans by June 1 of the applicable year.

Now that the operating lives of the Monticello and Prairie Island nuclear generating plants have been extended another 20 years, changes to the Custody and Escrow Agreement are necessary.

Learn about what we are asking the commission to do as a part of the Hobbs to China Draw filing.

Access the application, testimony, and other documents around the New Mexico Renewable Portfolio Standard.

Learn about our energy-efficiency and load management plans, reports, and other filings since 2008.

Access the notice, application, direct testimony, and supplemental direct testimony as a part of the SPS Interim Report on Participation in the SPP.

Access the full procedural schedule for this filing, including additional details for public hearings to be held on April 5th and April 6th, 2017.

Access the application, direct testimony, and notice to customers as part of this filing.

Learn about what we are asking the commission to do as a part of the filing for retirement of the Carlsbad Generating Station.

Access the application, direct testimony, and notice to customers as part of this filing.

This plan discusses major generation and transmission facilities in the state of South Dakota.

As an update to this original filing, we proposed a new strategy which will accelerate our transition from coal-based generation while continuing to ensure a reliable energy system.

On October 21, 2011, the South Dakota Public Utilities Commission approved our first Demand-Side Management (DSM) Plan.

Our operating utility Southwestern Public Service Company (SPS) has developed an energy efficiency portfolio designed to meet its statutory goals consistent with the requirements in P.U.C. Subst. R. 25181.

Access the application and direct testimony as a part of this filing.

As an update to this original filing, we proposed a new strategy which will accelerate our transition from coal-based generation while continuing to ensure a reliable energy system.