Solar permitting — Stillwater County, Montana
On file: public meetings, local news, known opposition groups.
Moderate market with Billings metro influence; mining wage economy supports residential solar; no utility-scal. Permitting: Conditional Use Permit; 50-ft setback. Track record: no prior utility-scale solar on record — greenfield juri…
Key driver: Moderate market with Billings metro influence; mining wage economy supports residential solar; no utility-scale pipeline confirmed
Permitting process
Local permitting pathway
Conditional Use Permit (CUP) or Special Use Permit (SUP) in Agricultural (A) or Rural zoning district; administered by county planning board or zoning board of adjustment. Process varies by county; most counties lack solar-specific ordinance.
Setbacks & buffers
No Montana state-mandated solar setback floor for sub-250 MW facilities. Standard agricultural district setbacks apply (typically ≥25–50 ft from property line, ≥50 ft from road ROW) where no county solar ordinance exists. County-specific setbacks may apply if local ordinance adopted. — NOTE: the distances above are a STATE-level fallback, not a figure read from this county's own ordinance. We hold siting-rule records for this county which may include a stricter local limit we have not yet extracted. Verify against the county's own ordinance before relying on these.
Spacing requirements
None codified.
Size restrictions
None codified; managed via CUP/SUP conditions
Penalties & bonding
Total: -5 | Permissive ordinance flag: -5
State-level permits & approvals
Sub-250 MW: county-level CUP or SUP in agricultural/rural zone; county planning board or BZA approval; process and timelines vary by county (typically 60–180 days). Facilities ≥250 MW nameplate: Montana Major Facility Siting Act (MCA 75-20) — requires BER siting certificate; full environmental review. MPSC regulates net metering interconnection for qualifying facilities. No state preemption statute; counties retain full authority for sub-250 MW.
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State policy & grid context
State RPS & clean energy policy
15% by 2015 (target passed; still in force) | Montana Renewable Power Production and Rural Economic Development Act (2005) | MCA §69-3-2001 et seq.
State incentive programs
Montana: No binding RPS. Voluntary 15% renewable goal (expired 2015). Net metering: available under MPSC rules (≤50 kW residential, up to 5 MW commercial). Property tax exemption: renewable energy systems exempt from state property tax (MCA 15-6-225). No state solar production tax credit or SREC market. Federal ITC (30% under IRA 2022) and USDA REAP grants apply. NorthWestern Energy community solar program limited in capacity.
Grid & interconnection
WECC / NorthWestern Energy (NorthWestern Corp) transmission zone
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Battery storage (BESS) P1 State-Default Permitting
No confirmed county BESS ordinance.
BESS ordinances & bylaws
County-level battery-storage status, safety requirements, and projects — each linked to a primary source.
Community opposition P1
Organized opposition signals on record for this county — petitions, community groups, and oppositional coverage — each linked to its primary source.
- Petition · PETITION FOR TRANSPARENCY, ACCOUNTABILITY, AND COMMUNITY PROTECTION REGARDING DATA CENTER Data center
SitePath maintains the most complete community-opposition dataset available, refreshed continuously from primary sources.
Subscriber intel Subscribers
Researched for this county and available with a subscription:
- Project track record
- Developer intelligence
- Governing board
Energy-related meetings & dockets P1
Halo color matches the energy category tagged on each meeting.
- 2026-08-24 County BoardSolar
The county considered a final application for a solar project.
- 2026-08-24 OtherSolar
Commissioners approved the final conditional use permit for the Battle Butte Solar 1 & 2 project.
- 2026-07-20 County BoardSolar
Impact Fee Agreement – Puget Sound Energy, Inc and Stillwater County for Battle Butte Solar Project in Rapelje, MT.
- 2026-07-20 OtherSolar
Stillwater County Commissioners voted to approve the Impact Fee Agreement for the Battle Butte Solar Project.
Full records for this county are part of a SitePath subscription.
State PSC dockets P1
No tracked activity yet — coverage expands weekly.
Local news P3
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