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Electric cooperativeBig Horn Rural Electric Company interconnection application
Big Horn Rural Electric Company is an electric cooperative serving 4,208 customers in Montana, Wyoming (EIA-861, 2025). Gridpol files Big Horn Rural Electric Company interconnection applications for licensed installers – solar, storage and EV chargers – with single-line diagram and site plan, unlimited for $500 a month.
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Wyoming’s interconnection rule (W.S. 37-16-104 (safety and performance requirements for net metering systems); no comprehensive PSC small-generator interconnection rule identified in this pass) applies to Big Horn Rural Electric Company. Levels, timelines and documents below come from that rule; Big Horn Rural Electric Company’s own form and portal are confirmed on the first project.
Big Horn Rural Electric Company at a glance
Big Horn Rural Electric Co
TypeElectric cooperative
EIA utility ID1675
Customers4,208 (EIA-861, 2025, short form: all customer classes)
Net-metered residential customersnone reported
Service territory2 counties in Montana, 5 counties in Wyoming
Wholesale supplier / associationBasin Electric Power Cooperative
Tri-State Generation and Transmission Association, Inc. · Board Policy for Member System Distributed Resource (Board Policy 115, FERC rate schedule) and BYOR Program
Documents Big Horn Rural Electric Company asks for
- Interconnection application formRequired by the state rule Gridpol prepares this.
- UL 1741 / IEEE 1547 certificationRequired by the state rule
- Other utility-specific documentRequired by the state rule
Documents required by the Wyoming rule. Big Horn Rural Electric Company may ask for more on its own form; we confirm on the first project.
Wyoming interconnection rule
Statute verified. Whether the WY PSC has adopted separate interconnection rules/standard forms (and insurance rules) not verified; utility tariffs (e.g., Rocky Mountain Power WY Schedule 135/Rule) not reviewed. Web search budget exhausted in this run.
Wyoming Public Service Commission (PSC)
Interconnection ruleW.S. 37-16-104 (safety and performance requirements for net metering systems); no comprehensive PSC small-generator interconnection rule identified in this pass – Net Metering (W.S. 37-16-101 to 37-16-104) · source
Applies toElectric utilities: electrical companies (IOUs such as Rocky Mountain Power, Black Hills, Cheyenne Light), irrigation districts and electric cooperatives distributing to retail customers; municipalities are excluded from 'electrical company' (W.S. 37-16-101(a)(iii),(v)).
Application formUtility-specific (no statewide form found).
FeesUtility may not charge a customer-generator fees that increase its minimum monthly charge above other customers in the same rate class (W.S. 37-16-102(a)(iii)). Customer bears facility costs and utility-required modifications (37-16-104(d)).
External disconnectRequired by statute: customer-generator provides, at its expense, lockable switching equipment capable of isolating the facility, approved by and accessible to the utility at all times (W.S. 37-16-104(b)).
Export compensationNEM – W.S. 37-16-101 to 37-16-104
Monthly net metering; excess kWh credited to following month; unused kWh credit at start of each calendar year sold to the utility at its filed avoided cost (37-16-103). Bidirectional meter offered. Must meet NEC, IEEE and UL standards; PSC may adopt additional control/testing requirements by regulation (37-16-104(e)).
Electric cooperatives and irrigation districts are bound by the net metering statute; municipal utilities are excluded and set their own policies.
- Wyoming Statutes Title 37 (Ch. 16 Net Metering): https://wyoleg.gov/statutes/compress/title37.pdf (retrieved 2026-11-13)
Other utilities in Wyoming
- Rocky Mountain Power (UT, ID, WY) / Pacific Power (OR, WA, CA)118,517
- Black Hills Energy (Cheyenne, Wyoming)44,072
- Lower Valley Energy Inc.23,172
- Powder River Energy Corporation15,548
- Montana-Dakota Utilities14,993
- City of Gillette14,134
- High Plains Power Inc.12,868
- High West Energy, Inc.5,692
- Black Hills Energy (Black Hills Power)2,179
- Yampa Valley Electric Association Inc.573
$500 / month
Unlimited interconnection applications. 12-month agreement, signed online. The agreement starts the day you sign; first invoice right away, then monthly.
- Unlimited interconnection applications
- Single-line diagram and site plan for every application
- Pre-submission check against the utility’s requirements
- Homeowner e-signature link for the authorization
- Filing in your utility portal accounts or by the utility’s method
- Utility questions, corrections and resubmissions
- Follow-up through approval, inspection and PTO
- Customer list, exports, API and webhooks
Applications are typically submitted within 2 business days after complete documents. Utility review times are set by each utility.