Washington, D.C. 20549
Pursuant to Section 13 or 15(d) of
the Securities Exchange Act of 1934
Date of Report (Date of earliest event reported) June 6, 2018
Commission File Number
Exact Name of Registrant as Specified in its Charter; State of Incorporation; Address of Principal Executive Offices; and Telephone Number
IRS Employer Identification Number
(a Minnesota corporation)
414 Nicollet Mall
Minneapolis, Minnesota 55401
(612) 330-5500
(a Colorado corporation)
1800 Larimer Street Suite 1100
Denver, Colorado 80202
(303) 571-7511

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions (see General Instruction A.2. below):

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Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (17 CFR §230.405) or Rule 12b-2 of the Securities Exchange Act of 1934 (17 CFR §240.12b-2).
Emerging growth company £

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Item 8.01. Other Events

Colorado Energy Plan
In 2016, Public Service Company of Colorado (PSCo), a Colorado corporation and wholly owned subsidiary of Xcel Energy Inc., filed its 2016 Electric Resource Plan (ERP) which included the estimated need for additional generation resources through spring of 2024. In 2017, PSCo filed an updated capacity need with the Colorado Public Utilities Commission (CPUC) of 450 megawatts (MW) in 2023.

In 2017, PSCo and various other stakeholders filed a stipulation agreement (Stipulation) proposing the Colorado Energy Plan (CEP), an alternative plan that increases PSCo’s potential capacity need up to 1,110 MW due to the proposed retirement of two coal units. The major components include:

Early retirement of 660 MWs of coal-fired generation at Comanche Units 1 (2022) and 2 (2025);
Accelerated depreciation for the early retirement of the two Comanche units and establishment of a regulatory asset to collect the incremental depreciation expense and related costs;
A request for proposal (RFP) for up to 1,000 MW of wind, 700 MW of solar and 700 MW of natural gas and/or storage;
Utility ownership targets of 50 percent renewable generation resources and 75 percent of natural gas-fired, storage, or renewable with storage generation resources; and
Reduction of the renewable energy standard adjustment rider (RESA), from two percent to one percent effective beginning 2021 or 2022.

In March 2018, the CPUC required additional portfolio requirements beyond the terms of the Stipulation. The CPUC requested PSCo to present 775 MW and 1,110 MW scenarios, and to include a least-cost portfolio in addition to the recommended portfolio and other portfolio alternatives. They also requested a scenario without the RESA reduction offsetting the cost of accelerated depreciation. The order did not explicitly approve the Stipulation and deferred action on issues such as the treatment of accelerated depreciation which is being addressed in a separate proceeding.

On June 6, 2018, PSCo filed its 120-day update report under the resource planning docket with the CPUC which includes multiple portfolios and recommends a preferred CEP portfolio that includes a $2.5 billion investment in generation resources and battery storage. PSCo's investment under the preferred CEP portfolio would be approximately $1 billion, including investment in transmission to support the significant increase in renewable generation in the state. The preferred CEP portfolio includes the following additions as well as the retirement of the two coal-fired generation units discussed above:
Total Capacity
PSCo's Ownership
Wind generation
1,100 MW
500 MW

Solar generation
700 MW

Battery storage
275 MW

Natural gas generation
380 MW
380 MW

A CPUC decision is anticipated by September 2018.

Certain information discussed in this Current Report on Form 8-K is forward-looking information that involves risks, uncertainties and assumptions. Forward-looking information includes, among other information, the expected impact of PSCo’s Colorado Energy Plan, and other statements identified by words such as “may,” “believe,” “expect,” “estimate,” “anticipate,” “would,” or “plan.” Forward-looking statements are subject to certain risks, uncertainties and assumptions. Although Xcel Energy believes that its expectations are based on reasonable assumptions, any such statements may be influenced by factors that could cause actual outcomes and results to be materially different from those projected. Factors, in addition to those discussed in Xcel Energy’s and PSCo’s Annual Report on Form 10-K for the year ended Dec. 31, 2017, and subsequent securities filings, that could cause actual results to differ materially include: general economic conditions, including inflation rates, monetary fluctuations and their impact on capital expenditures and the ability of Xcel Energy Inc. and its subsidiaries (collectively, Xcel Energy) to obtain financing on favorable terms; business conditions in the energy industry; including the risk of a slow down in the U.S. economy or delay in growth recovery; trade, fiscal, taxation and environmental policies in areas where Xcel Energy and PSCo have a financial interest; customer business conditions; actions of credit rating agencies; competitive factors including the extent and timing of the entry of additional competition in the markets served by Xcel Energy and its subsidiaries; unusual weather; effects of geopolitical events, including war and acts of terrorism; cyber security threats and data security breaches; state, federal and foreign legislative and regulatory initiatives that affect cost and investment recovery, have an impact on rates or have an impact on asset operation or ownership; or impose environmental compliance conditions; structures that affect the speed and degree to which competition enters the electric and natural gas markets; costs and other effects of legal and administrative proceedings, settlements, investigations and claims; financial or regulatory accounting policies imposed by regulatory bodies; outcomes of regulatory proceedings; availability or cost of capital; and employee work force factors. Forward-looking statements speak only as of the date they are made, and Xcel Energy expressly disclaims any obligation to update any forward-looking information.


Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.

June 7, 2018
Xcel Energy Inc. (a Minnesota corporation)
Public Service Company of Colorado (a Colorado corporation)
Robert C. Frenzel
Executive Vice President, Chief Financial Officer