Greene County, OH — Solar Development Risk Assessment

Active SB 52 Exclusion Zone — county resolution banning utility-scale solar

OPSB standard applies per OAC 4906-4-09(G)(4): ≥50 ft from parcel boundary; ≥300 ft from non-participating residences; ≥150 ft from road ROW. No additional county-specific setbacks.

Greene County: sub-50 MW projects governed by county zoning ordinance. ≥50 MW requires OPSB CECPN (see State Permitting Requirements).

Hostile — Kingwood Solar denial driven by Greene County commissioners; one of 3 precedent-setting 'public interest' denials

Kingwood Solar OH Supreme Court case (decision pending 2025) will define 'public interest' standard for all future Ohio solar; SB52 ban in place

Worsening

Ohio Power Siting Board (OPSB) has jurisdiction for solar ≥50 MW (Ohio Revised Code Chapter 4906). Senate Bill 52 (2021) dramatically altered the siting process: county commissioners gained authority to (1) block individual projects via 90-day review window (must adopt resolution within 90 days of public meeting), and (2) pass blanket 'exclusion zones' restricting all utility-scale solar/wind in unincorporated areas. As of September 2025, 37 Ohio counties have enacted SB 52 exclusion zones affecting at least 1 township. Known full/near-full county bans (as of Mar 2026): Adams, Allen, Auglaize, Brown, Butler, Clark, Clermont, Columbiana, Crawford, Erie, Fairfield, Fayette, Greene, Hancock, Henry, Licking, Logan, Madison, Mahoning, Marion, Medina, Morrow, Ottawa, Putnam, Richland, Seneca, Union, Wayne. Kingwood Solar (175 MW, Greene County) OPSB denial on 'public interest' grounds is before Ohio Supreme Court (oral arguments Mar 13, 2025; decision pending Mar 2026). Projects <50 MW: local zoning governs (HB 501 of 2023 granted local authority over sub-50 MW projects). OPSB certificate preempts local zoning once issued (RC 4906.13(B)); but SB 52 allows county veto before OPSB stage. Priority Investment Areas (PIA): brownfield/former coal mine sites may receive expedited 90-day OPSB review. PJM interconnection required. Most of Ohio served by AEP Ohio, FirstEnergy (ATSI), Duke Energy Ohio (DEOK), or AES Ohio/DP&L.

Ohio has no Renewable Portfolio Standard (HB 6 2019 effectively eliminated compliance mandate). SREC market: Ohio SRECs tradeable but very low value due to lack of mandate (~$2-5/SREC 2024). Net metering: available under Ohio law for ≤120% of customer load; AEP Ohio, FirstEnergy (Ohio Edison, CEI, Toledo Edison), Duke/DP&L, AES Ohio offer standard programs. Solar PILOT (Payment in Lieu of Taxes): county agreements common for large-scale projects. Ohio Enterprise Zone/CRA: potential tax abatement for qualifying sites. SB52 (2021): county commissioners can restrict ≥50 MW solar projects via exclusion zones or individual project veto — key risk factor for development in 37+ Ohio counties.

SW Ohio; Xenia/Beavercreek area; suburban Dayton; AEP Ohio/Dayton Power & Light. Kingwood Solar | 175 MW | Greene County | DENIED by OPSB December 2022. This is now before the Ohio Supreme Court (oral arguments March 13 2025 — decision pending as of Mar 2026). Core question: whether OPSB can rely on local government opposition as a de facto veto. No utility-scale solar operational in Greene County as of Mar 2026.

Kingwood Solar 175 MW — OPSB DENIED December 2022. Ohio Supreme Court case pending (oral args Mar 13 2025): Kingwood argues OPSB departure from 44 previous approvals where local opposition was never deemed controlling. SB52 exclusion zone enacted for Greene County (OPSB map Feb 19 2026).