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Black Hills Colorado Electric, LLC d/b/a Black Hills Energy: what it publishes for small generators (qualifying facilities) under PURPA, field by field, with the source for each. Checked on October 4, 2026.
When this may change: Annual: tariff Section 20 says avoided costs are recalculated by December 1 each year and filed to take effect January 1, using October-September historical data.
Rates, eligibility and contract terms change: confirm them with the utility or the state utility commission before relying on them.
| Schedule | Rate CG-SPP1 Co-Generation and Small Power Production (rate code CO700, Sheets 48-49) with Rules and Regulations Section 20 - Co-Generation and Small Power Production Facilities (Sheets R33-R36, Purchased Power Amount Table on Seventh Revised Sheet No. R36), Colo. PUC No. 11Source: blackhillsenergy.com: coe-rates-tariff.pdf · checked 2026-10-04 | ||||||
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| Docket or order | Advice Letter No. 901 (Colorado PUC Proceeding No. 25AL-0504E per company notice); sheet's Decision or Authority No. field is blank Unverified. We could not fully confirm this from a primary document; see the note. Check the source before using it. Note: The tariff sheet prints Advice Letter No. 901 only. The proceeding number 25AL-0504E appears on Black Hills' Colorado rates web page notice, not on the tariff or advice letter, so it is unconfirmed. Source: blackhillsenergy.com: coe-rates-tariff.pdf · also: blackhillsenergy.com: Advice-Letter-No-901.pdf, blackhillsenergy.com: colorado-rates-and-regulatory-information · checked 2026-10-04 | ||||||
| Effective date | 2026-01-01 Note: Seventh Revised Sheet No. R36, issued December 1, 2025, effective January 1, 2026; the August 2026 compiled tariff book still carries this sheet. CG-SPP1 sheets 48-49 and R33-R35 are Original sheets effective October 10, 2019 (Advice Letter 776). Source: blackhillsenergy.com: coe-rates-tariff.pdf · also: blackhillsenergy.com: Advice-Letter-No-901.pdf, blackhillsenergy.com: Appendix-A-Tariff-Sheet-R36-1.pdf · checked 2026-10-04 | ||||||
| Next update | Annual: tariff Section 20 says avoided costs are recalculated by December 1 each year and filed to take effect January 1, using October-September historical data.Source: blackhillsenergy.com: coe-rates-tariff.pdf · checked 2026-10-04 | ||||||
| Size cap | CG-SPP1 standard rate: QFs with generating capabilities of 100 kW or less (Categories 1 and 2: 10 kW and under; over 10 kW through 100 kW). Categories 3-5 (over 100 kW up to 10 MW) contract at avoided capacity and energy costs; contracts above 100 kW are filed with the Commission.Source: blackhillsenergy.com: coe-rates-tariff.pdf · checked 2026-10-04 | ||||||
| Resource types | Any QF under 18 CFR Part 292 (cogeneration or small power production); one rate for all technologies.Source: blackhillsenergy.com: coe-rates-tariff.pdf · checked 2026-10-04 | ||||||
| Energy rate structure | Single flat energy payment per kWh (Average Hourly Incremental Cost of Electricity) for Categories 1 and 2; no capacity payment. Billing nets credits for energy delivered against retail charges for energy used; credit balances carry forward (direct payment on request).Source: blackhillsenergy.com: coe-rates-tariff.pdf · also: blackhillsenergy.com: Advice-Letter-No-901.pdf · checked 2026-10-04 | ||||||
| Energy rates (sample cells) |
Copied as printed: a few labelled cells, not the full rate matrix. The whole schedule is linked below. Note: Same rate on the clean sheet filed with Advice Letter 901 (Appendix A). Source: blackhillsenergy.com: coe-rates-tariff.pdf · also: blackhillsenergy.com: Appendix-A-Tariff-Sheet-R36-1.pdf · checked 2026-10-04 | ||||||
| Capacity payment | None for Categories 1 & 2 (Capacity Payment per Month per Kilowatt: NONE).Source: blackhillsenergy.com: coe-rates-tariff.pdf · checked 2026-10-04 | ||||||
| Contract terms | No term stated for Categories 1-2; service under CG-SPP1 subject to Commission Decision C82-1438 Attachment 1 and the company's rules. Categories 3-5 may enter a negotiated purchase contract at avoided-cost rates; contracts over 100 kW are filed with the Commission at least 30 days before taking effect.Source: blackhillsenergy.com: coe-rates-tariff.pdf · checked 2026-10-04 | ||||||
| Price fixity | Variable: the energy payment rate is re-filed every January 1. A footnote says each year's rates apply to IPPFs achieving commercial operation during that rate period; the tariff does not say whether an earlier QF keeps its vintage rate. Unverified. We could not fully confirm this from a primary document; see the note. Check the source before using it. Note: Footnote 1 of Sheet R36 could be read as vintage-locking; CG-SPP1 Sheet 48 says credits are based on avoided cost filed each year. Not resolved from the tariff text. The advice letter states there are currently no QFs on the system. Source: blackhillsenergy.com: coe-rates-tariff.pdf · checked 2026-10-04 | ||||||
| Schedule link | https://www.blackhillsenergy.com/sites/blackhillsenergy.com/files/coe-rates-tariff.pdf Note: Full Colo. PUC No. 11 tariff book (296 pages, compiled August 2026). Sheet R36 alone, as filed: https://www.blackhillsenergy.com/sites/blackhillsenergy.com/files/Appendix-A-Tariff-Sheet-R36-1.pdf Source: blackhillsenergy.com: coe-rates-tariff.pdf · checked 2026-10-04 |
Values are copied as printed in the source. Where a value draws on more than one document, every source is listed, primary first.
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