Interconnections

Transmission Business Relations

Transmission Business Relations (TBR) provides transmission contract negotiation and customer relations for the four Xcel Energy operating companies, Northern States Power Minnesota (NSPM), Northern States Power Wisconsin (NSPW), Public Service Company of Colorado (PSCo) and Southwestern Public Service Company (SPS).  TBR is responsible for all transmission related interconnections (load, transmission, and generation), maintenance and or operating agreements, asset sales or exchanges and the management of all small and large Xcel Energy transmission customer agreements.

NSPM and NSPW are members of the Midcontinent Independent System Operator, Inc. (MISO).  New generation and transmission interconnections are subject to the MISO Tariff on file with the Federal Energy Regulatory Commission (FERC). New load and transmission interconnections are subject to the Xcel Energy Operating Companies Tariff also on file with the FERC. 

PSCo new interconnections are subject to the Xcel Energy Open Access Transmission Tariff.

SPS is a member of the Southwest Power Pool (SPP). New generation and transmission interconnections are subject to the SPP Tariff on file with the Federal Energy Regulatory Commission (FERC). New load and transmission interconnections are subject to the Xcel Energy Operating Companies Tariff also on file with the FERC.

The applicable Tariff (see MISO, Xcel Energy and SPP) should be reviewed in addition to the applicable transmission interconnection guidelines.

Xcel Energy's transmission interconnection guidelines are available for download at the bottom of this page. These guidelines represent the most current information consistent with rules and regulations as of the date of the document.

If you have any questions related to Xcel Energy Transmission Interconnection information, please direct them to the following contacts:

NSPM/NSPW (Minneapolis) – Greg Gorski at Gregory.E.Gorski@xcelenergy.com

PSCo (Denver) – Jennifer Bass at Jennifer.L.Bass@xcelenergy.com

SPS (Amarillo) – Annette Gallegos at Annette.Gallegos@xcelenergy.com

For questions regarding interconnections to the Xcel Energy Distribution System please direct them to the following contacts:  

NSPM/NSPW (Minneapolis) – Nicholas Friebel at Nicolas.J.Friebel@xcelenergy.com

PSCo (Denver) – Thomas Malone at Thomas.H.Malone@xcelenergy.com

SPS (Amarillo) – Kyle Reddell at Kyle.A.Reddell@xcelenergy.com

Business Practices for NSP-Minnesota and NSP-Wisconsin

Generator Interconnection Procedures

NSPM and NSPW are required to follow the MISO process for new generation interconnecting to the NSPM or NSPW transmission system.

TBR, MISO and the Interconnection Customer will negotiate the required Generation Interconnection Agreement (GIA).

For additional resources see Large Generation Interconnection Guidelines (link below).

Transmission to Load and Transmission to Transsmion Interconnection Procedures

TBR will negotiate agreements with the requesting entity for any new transmission to load or transmission to transmission interconnections. TBR will also negotiate modifications to existing agreements requested by existing entities.

For additional resources see Transmission to Load Interconnection Guidelines or Transmission to Transmission Interconnection Guidelines (links below).

Business Practices for PSCo

Large Generator Interconnection Procedures

Informational Study

Interconnection Customer shall submit Informational Study Requests here (PDF).

PSCo recommends that the Interconnection Customer contact the PSCo contact listed above to arrange a scoping meeting as part of the application process.

A deposit of $10,000 for the Feasibility Study will be required from the Interconnection Customer.

Definitive Interconnection System Impact Study

Interconnection Customer shall submit an Interconnection Request for a Large Generating Facility (PDF) to be included in the Definitive Interconnection Study Process (“DISIS”).

Interconnection customer must provide an application fee of $5,000 along with the completed application including all the necessary information identified in the request, which includes Readiness Milestone 1 demonstration, security and a study deposit of:

Helpful links:

GIP Data Model Checks

LGIP Application Requirements

Security - Form of Letter of Credit

DISIS Request Windows:

For additional information refer to Xcel Energy Open Access Transmission Tariff website under Current Tariffs.

Generator Replacement Requests

To submit a Generator Replacement Request pursuant to the Xcel Energy OATT Attachment N, please contact Xcel Energy’s independent Generator Replacement Coordinator to receive further guidance on submitting a request.

Generator Replacement Coordinator:

Excel Engineering of MN, LLP

LaShel Marvig
lashel.marvig@exceleng.net
763-231-8547

Craig Thingvold
Craig.thingvold@exceleng.net
763-231-8566

Small Generator Interconnection Procedures

Interconnection Customer shall submit Interconnection Requests for a Small Generating Facility here (PDF)

A deposit of the lesser of 50 percent of good faith estimated Feasibility Study costs or the lesser of $1,000 will be required from the Interconnection Customer.

A deposit of 50 percent of good faith estimated System Impact Study costs will be required from the Interconnection Customer.

A deposit of the good faith estimated costs for the facilities study will be required from the Interconnection Customer.

Business Practices for SPS

Generator Interconnection Procedures

SPS is required to follow the SPP process for new generation interconnecting to the SPS transmission system.

TBR, SPP and the interconnection Customer will negotiate the required Generation Interconnection Agreement (GIA).

For additional resources see Large Interconnection Guidelines (link below).

Transmission to Load Interconnection Procedure

Requests for transmission to load interconnections shall be requested under the SPP Delivery Point Addition Process - Attachment AQ Process (external link)

TBR will negotiate agreements with the requesting entity for any new interconnections. TBR will also negotiate modifications and removals to existing agreements requested by existing entities.

For additional resources see Transmission to Load Interconnection Guidelines (link below).

Transmission to Transmission Interconnection Procedure

TBR will negotiate agreements with the requesting entity for any new interconnections. TBR will also negotiate modifications to existing agreements requested by existing entities.

For additional resources see Transmission to Transmission Interconnection Guidelines (link below).

Additional Resources for Business Relations