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Colorado rates and regulatory information

Colorado electric

Tariff and regulatory documents

A tariff is a group of schedules filed with our regulatory commissions. Tariffs contain basic rates, supplemental rates or riders, and general terms and conditions for providing utility service.

The rates don’t apply to a residence used for commercial, professional or business activities. But if the domestic use can be separately metered from the business activities, then these rates would apply to the domestic part.

We consider a single-family dwelling one in which four sleeping rooms or more are rented or are available for rent as non-domestic, and the applicable general service rate applies.

On November 15, 2021, Black Hills Energy filed amended tariffs at the Colorado Public Utilities Commission.  The filing was assigned Proceeding No. 21AL-0540E.  The filing amends the CSG Fixed Bill Credits for customers subscribing to Community Solar Gardens effective on January 1, 2022.  The amended CSG Fixed Bill Credits are shown below.  

Class Subclass Current CSG Fixed Bill Credit per kWh Proposed 2022 CSG Fixed Bill Credit
per kWh
$ Difference Percent Change
Residential Regular $0.1181  $0.1180 -$0.0001 -0.08%
Residential Other $0.0937 $0.0921 -$0.0016 -1.71%
Small General Service Non-Demand $0.1207 $0.1200 -$0.0007 -0.58%
Small General Service Demand $0.0954  $0.0942 -$0.0012 -1.26%
Large General Service Demand  $0.0832  $0.0827 -$0.0005 -0.60%
Large General Service Primary $0.0803  $0.0802 -$0.0001 -0.12%
Large Power Service Secondary $0.0640  $0.0610 -$0.0030 -4.69%
Large Power Service Primary $0.0668  $0.0644 -$0.0024 -3.59%
Large Power Service Transmission $0.0738  $0.0816 $0.0078 10.57%
Irrigation Pumping $0.1054  $0.1065 $0.0011 1.04%

You may contact Black Hills Energy at BHESolar@blackhillscorp.com with questions or call 888-890-5554.

What you need to know about the annual Transmission Cost Adjustment (TCA)

On November 1, 2021, Black Hills Energy filed its annual Transmission Cost Adjustment (“TCA”). The TCA is a monthly surcharge on all customers’ bills to pay for the costs of maintaining and improving the high-voltage transmission system that ensures the safe, reliable delivery of energy across our southern Colorado service territory.

The TCA is updated on an annual basis to allow Black Hills to recover construction costs incurred the previous year for projects related to our transmission towers and structures, high-voltage transmission lines, and substations – critical infrastructure necessary for carrying high-voltage electricity quickly and efficiently to the lower voltage distribution system that serves homes and businesses.

The 2022 TCA rate will be $0.005072 per kilowatt-hour (kWh). Based on this rate, the average residential customer monthly bill would see an increase of 89 cents, going from $104.78 per month to $105.67 per month. The average small commercial customer monthly bill would see an increase of $3.42, from $341.48 per month to $344.90 per month. The 2022 TCA rate will be in effect from Jan. 1, 2022 through Dec. 31, 2022.

Black Hills Energy has filed to adjust its ECA rate on October 1, 2021 pending approval by the Colorado Public Utilities Commission in Proceeding No. 21AL-0406E. The new rate will increase to $0.04072 per kWh. The current rate is $0.03854 per kWh. The new rate will increase Company revenues (annualized basis) by approximately $3.3 million. The new rate will increase a typical residential bill by $1.37 or 1.33%. The new rate will increase a typical small commercial bill by $5.25 or 1.56%. 

You may view the filing documents here:

Black Hills Energy has filed tariffs with the Colo. Public Utilities Commission (“PUC”) to bill the new Energy Assistance System Benefit Charge (“EASBC”) on October 1, 2021.  PUC assigned Proceeding No. 21AL-0400E to the Company’s filing.  EASBC was mandated in Colo. House Bill 1105 (2021).  EASBC supports low-income assistance and is administered by Energy Outreach Colorado (“EOC”).  Customers may contact EOC at 1-866-HEAT-HELP to qualify for the low-income assistance.  Customers may opt out of EASBC by contacting Black Hills Energy at email address eaoptout@blackhillscorp.com.  Customers who have received low-income assistance in the previous twelve months will be automatically exempted from EASBC billings for the succeeding twelve months. 

You may view the PUC filing documents here:

On May 8, 2020, we filed an application at the Colorado Public Utilities Commission for the approval of our first Transportation Electrification Plan, or TEP. This was our first TEP required by Colorado Senate Bill 19-077, and if approved, will be effective for three years until the end of 2024. 

We designed our TEP to encourage transportation electrification while minimizing costs and giving our customers the power to shape what the electric vehicle industry in southern Colorado. The TEP consists of 4 major parts: 1) customer education and outreach, 2) rebates on EV charging equipment, 3) new rates for EV charging, and 4) classifying EV charging equipment as permanent load for the purposes of line extensions. To avoid customer confusion with a new line on customer bills, we have proposed to streamline the cost-recovery of the TEP by combining it with our Demand Side Management Cost Adjustment.  We estimate that an average residential customer will see their monthly bill increase approximately 0.24%, or $0.19 in 2022, $0.21 in 2023, and $0.24 in 2024. We estimate that an average Small General Service customer will see their monthly bill increase 0.24%, or $0.71 in 2022, $0.77 in 2023, and $0.87 in 2024.

On November 6, 2020, we filed Advice Letter 793 at the Colorado Public Utilities Commission for new ATO Dual Feeder Service. If approved, the service becomes effective December 8, 2020. ATO Dual Feeder Service is available to non-residential, demand-metered customers who need service from an alternate substation in case of interruption at the primary substation source. Customers are responsible for equipment and installation costs of an Automated Throw Over (“ATO”) device, for line extension or dedicated feeder costs as necessary, and for a Monthly Reserved Capacity Charge at rates specified in the tariff.

You may view the filed documents here:

On November 17, 2020, Black Hills Energy filed amended tariffs at the Colorado Public Utilities Commission. The filing was assigned Proceeding No. 20AL-0513E. The filing amends the CSG Fixed Bill Credits for customers subscribing to Community Solar Gardens effective on January 1, 2021. The amended CSG Fixed Bill Credits comply with new Commission rules adopted in Decision No C20-0628. Specifically, the new Commission rules require that the Demand Side Management Cost Adjustment (“DSMCA”) be deducted from the CSG Fixed Bill Credits calculation. As a result, CSG Fixed Bill Credits are generally lower than in the previous annual period as shown in the table below:

Class Subclass Current CSG Fixed Bill Credit per kWh Proposed 2021 CSG Fixed Bill Credit per kWh $ Difference Percentage Change
Residential Regular $0.1221 $0.1181 $(0.0040) -3.24%
Residential Other $0.0970 $0.0937 $(0.0032) -3.34%
Small General Service Non-Demand $0.1252 $0.1207 $(0.0045) -3.60%
Small General Service Demand $0.1006 $0.0954 $(0.0053) -5.23%
Large General Service Secondary $0.0869 $0.0832 $(0.0037) -4.25%
Large General Service Primary $0.0829 $0.0803 $(0.0027) -3.20%
Large Power Service Secondary $0.0621 $0.0640 $0.0019 3.02%
Large Power Service Primary $0.0687 $0.0668 $(0.0019) -2.79%
Large Power Service Transmission $0.0719 $0.0738 $0.0019 2.71%
Irrigation Pumping $0.1207 $0.1054 $(0.0153) -12.68%

 

You may view the filing documents here. You may contact Black Hills Energy at 888-890-5554 or 719-546-5885 with questions.

On November 15, 2021, Black Hills Colorado Electric filed Advice Letter No. 815 at the Colorado Public Utilities Commission.

The principal purpose of this annual filing is to amend the Company’s PCCA tariff sheets to reflect the incremental purchased capacity-related costs. The PCCA recovers the incremental cost of purchased capacity above the level of purchased capacity costs included in base rates. This PCCA filing represents the incremental purchased capacity costs for the period January 1, 2016 through December 31, 2021. The proposed PCCA rate is $0.00145/kWh for Residential and Energy Only Customers, $0.00130/kWh for Small General Service customers, $0.36983/kW for Large General Service customers, and $0.44670/kW for Large Power Service customers.

If permitted to go into effect on January 1, 2021, the tariff revisions will result in increased annualized revenues of approximately $460,792, as compared to the 2021 PCCA rates that are currently in effect. Based on the proposed PCCA rates, the average residential customer monthly bill, under Rate Schedule RS-1 with an average usage of 600 kWh per month, will increase $0.23, from $104.78 to $105.01, or 0.22%. The average small commercial customer monthly bill, under Rate Schedule SGS-N with an average usage of 2,300 kWh per month, will increase $0.72, from $341.48 to $342.21, or 0.21%.

Attachment 1 - Placeholder Customer Notice

Appendix A - Tariff Sheet Nos. 85-86

Appendix B - Redlined Tariff Sheet Nos. 85-86

Appendix C - PCCA Calculation

PCCA Advice Letter No. 815

PCCA Motion for Alt Form of Notice

Colorado natural gas

Tariff and regulatory documents

A tariff is a group of schedules filed with our regulatory commissions. Tariffs contain basic rates, supplemental rates or riders, and general terms and conditions for providing utility service.

More information

Filings and adjustments

On November 1, 2021, the Company filed an advice letter with the Public Utilities Commission of the State of Colorado proposing a change to the Company’s SSIR rates. The proposed change to SSIR rates will recover forecasted costs resulting from safety and integrity projects that will be placed in-service in 2022. The proposed SSIR tariff will affect all retail and transportation customers in Base Rate Area 2 and Base Rate Area 3 if the Commission allows the tariff to become effective. If approved, the amendments will become effective January 1, 2022. The Commission has opened Proceeding No. 21AL-0519G for the Company’s filing. The filing documents are below for your viewing. Estimated customer bill impacts can be found on “Advice Letter No. 13”. 

Advice Letter No. 13

Attachment A - Clean Tariffs

Attachment B - Redlined Tariffs

Attachment C - BHCG 2022 SSIR 5 Year Plan

Attachment C.1 - 5-Year SSIR Plan and Summary 2022

Attachment C.2 - 2022 SSIR Capital Expenditures - Qtrly  Forecast

Attachment D - 2022 BHCG SSIR Revenue Requirement

Black Hills Energy Customer Notice

On October 15, 2021, the Company filed a request with the Public Utilities Commission of the State of Colorado that reflects a proposed change to the Company’s GCA rate. The proposed amendment reflects updates to the forecasted gas commodity and upstream demand costs for the period November 1, 2021 – October 31, 2022, in addition to the deferred GCA costs as of June 30, 2021. The proposed GCA tariff will affect all retail customers if the Commission allows the tariff to become effective. If approved, the amendments will become effective November 1, 2021. The Commission has opened Proceeding No. 21L-0491G for the Company’s filing. The filing documents are below for your viewing. Estimated customer bill impacts can be found on “GCA Attachment No. 7” in the “BHCG GCA Public Attachments 1-13” document below.

Black Hills Energy has filed tariffs with the Colo. Public Utilities Commission (“PUC”) to bill the new Energy Assistance System Benefit Charge (“EASBC”) on October 1, 2021. PUC assigned Proceeding No. 21AL-0404G to the Company’s filing. The EASBC was mandated in Colo. House Bill 1105 (2021). The EASBC supports low-income assistance and is administered by Energy Outreach Colorado (“EOC”). Customers may contact EOC at 1-866-HEAT-HELP to qualify for the low-income assistance. Customers may opt out of EASBC by contacting Black Hills Energy at email address eaoptout@blackhillscorp.com. Customers who have received low-income assistance in the previous twelve months will be automatically exempted from EASBC billings for the succeeding twelve months. 

You may view the PUC filing documents here:

On October 15, 2020, the Company filed a request with the Public Utilities Commission of the State of Colorado that reflects a proposed change to the Company’s GCA rate. The proposed amendment reflects updates to the forecasted gas commodity and upstream demand costs for the period November 1, 2020 – October 31, 2021, in addition to the deferred GCA costs for the 12-month period ending June 3, 2020. The proposed GCA tariff will affect all retail customers if the Commission allows the tariff to become effective. If approved, the amendments will become effective November 1, 200. The Commission has opened Proceeding No. 20L-0428G for the Company’s filing. The filing documents are below for your viewing. Estimated customer bill impacts can be found on “GCA Attachment No. 7 – Customer Notice” in the “Public BHCG GCA Attachments 2020-11-01” document below.