Each Ohioutility has a different cohort and pitch. Pick the customer's utility to open its rep guide.
AEP Ohio · Columbus, Newark, Lancaster · central & eastern Ohio (61 counties, ~1.5M customers)
Net Energy Metering Service (NEMS) — net billing, not true 1:1 net metering: imports billed at the full bundled retail rate, exports credited at the generation-related energy charges only (the SSO Price-to-Compare, ~10.1¢/kWh as of June 2026, which floats with each SSO auction). Credits roll forward; a customer may request an annual (12-month) true-up refund capped at accumulated credit. Ohio nets all charges at the full retail rate within the billing month on a single register, so a battery does not reduce the monthly bill here (bill arbitrage ~0) — only the net monthly excess is credited at the generation rate (a better excess rate than most states). Net-metering eligibility is the 120%-of-annual-usage sizing rule (25 kW is the Level-1 interconnection threshold, not a NEM cap). Grandfathering is expressly disclaimed in the tariff. Residential customer charge $13.50/mo (Schedule RS, eff. 4/10/2026, Case 25-392-EL-AIR). NEM applies to standard-service-offer customers; shopping (CRES) customers are credited per their supplier contract. AEP proposed weakening net metering in 2025; PUCO declined on Jan 7, 2026 (Docket 25-0349-EL-ORD).
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Duke Energy Ohio · Cincinnati metro & southwest Ohio (Hamilton, Butler, Clermont, Warren counties · ~750K customers)
Monthly net metering: imports at full retail, excess exports converted to a monetary credit at the SSO energy component that rolls forward indefinitely (NO cash-out — forfeited if the customer stops taking service). NEM rider = P.U.C.O. Electric No. 19, Sheet 48 (eff. 1/2/2019). Ohio nets all charges at the full retail rate within the billing month on a single register, so a battery does not reduce the monthly bill here (bill arbitrage ~0) — only the net monthly excess is credited at the generation rate. Note: Rider RE is a CHARGE (~7.7¢/kWh), not a credit. Residential customer charge $8.00/mo (Rate RS). NEM sizing is the 120%-of-usage rule (25 kW is the Level-1 interconnection threshold). NEM applies to standard-service customers; shopping (CRES) customers are credited per their supplier contract. Duke removed retail 1:1 net metering in North Carolina and the NC Court of Appeals upheld it (Sept 17, 2024) — the same-parent precedent. Duke's Ohio ESP orders a base distribution rate case filing by 6/30/2027.
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AES Ohio · Dayton metro & western Ohio (Montgomery, Greene, Miami, Clark counties · ~527K customers)
Formerly Dayton Power & Light (DP&L). Monthly net metering: imports at full retail, excess exports credited at the SSO energy component (Sheet G10, ~10.9¢/kWh eff. 6/1/2026) as a rolling monetary credit — NO cash-out, forfeited at account closure. NEM sizing is the 120%-of-usage rule (25 kW is the Level-1 interconnection threshold). One-time $95 meter-exchange fee (~$130 average with processing). Residential customer charge $9.75/mo (eff. 1/1/2026). AES all-in is ~20.75¢/kWh at 1,000 kWh (eff. 7/1/2026) — the HIGHEST of the six Ohio utilities, and the steepest recent climb. Ohio nets all charges at the full retail rate within the billing month on a single register, so a battery does not reduce the monthly bill here (bill arbitrage ~0) — only the net monthly excess is credited at the generation rate. NEM applies to standard-service customers; shopping (CRES) customers are credited per their supplier. Current rate case 24-1009-EL-AIR (Order 11/5/2025, ~9% residential increase).
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Ohio Edison (FirstEnergy) · Akron, Youngstown, Canton, Warren, Mansfield · northeast & central Ohio (~1M customers)
FirstEnergy company — shared net metering with The Illuminating Company and Toledo Edison: imports at full retail, each exported kWh offsets delivered energy 1:1 within the billing period, excess credited at the Rider GEN generation component (~7.3¢/kWh; OE 7.2774¢ eff. 6/1/2026) as a rolling credit, with a customer-requested annual 12-month true-up refund. Ohio nets all charges at the full retail rate within the billing month on a single register, so a battery does not reduce the monthly bill here (bill arbitrage ~0) — only the net monthly excess earns the generation rate. NEM sizing is the 120%-of-usage rule (25 kW is the Level-1 interconnection threshold). Service charge $6.50/mo; distribution energy 4.0988¢/kWh (eff. 3/1/2026). FirstEnergy Ohio 2025 supply-rate impact was ~11.8% total-bill at Ohio Edison (June 1, 2025; the higher supply-hike figure is FE's West Virginia pattern). The PUCO base rate case (24-0468-EL-AIR, Order Nov 19, 2025) adopted a consolidated ~+$34M for the three Ohio Companies combined at a 9.63% ROE (tariffs eff. 3/1/2026). NEM applies to standard-service customers; shopping (CRES) customers are credited per their supplier.
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The Illuminating Company (FirstEnergy) · Greater Cleveland · Cuyahoga, Lake, Lorain, Ashtabula, Geauga counties (~750K customers)
FirstEnergy company (also known as CEI) — shared net metering with Ohio Edison and Toledo Edison: imports at full retail, each exported kWh offsets delivered energy 1:1 within the billing period, excess credited at the Rider GEN generation component (~7.3¢/kWh; CEI 7.2774¢ eff. 6/1/2026) as a rolling credit, with a customer-requested annual 12-month true-up refund. Ohio nets all charges at the full retail rate within the billing month on a single register, so a battery does not reduce the monthly bill here (bill arbitrage ~0) — only the net monthly excess earns the generation rate. NEM sizing is the 120%-of-usage rule (25 kW is the Level-1 interconnection threshold). Service charge $6.50/mo; distribution energy 4.8397¢/kWh (eff. 3/1/2026). FirstEnergy Ohio 2025 supply-rate impact was ~12.5% total-bill at CEI (June 1, 2025; the higher supply-hike figure is FE's West Virginia pattern). The PUCO base rate case (24-0468-EL-AIR, Order Nov 19, 2025) adopted a consolidated ~+$34M for the three Ohio Companies combined at 9.63% ROE (tariffs eff. 3/1/2026). NEM applies to standard-service customers; shopping (CRES) customers are credited per their supplier.
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Toledo Edison (FirstEnergy) · Toledo, Sandusky, Fremont · Lucas, Wood, Ottawa, Erie counties (~310K customers)
FirstEnergy company (smallest of the three Ohio FirstEnergy utilities) — shared net metering with Ohio Edison and The Illuminating Company: imports at full retail, each exported kWh offsets delivered energy 1:1 within the billing period, excess credited at the Rider GEN generation component (TE 7.3661¢ summer / 6.9966¢ winter, eff. 6/1/2026) as a rolling credit, with a customer-requested annual 12-month true-up refund. Ohio nets all charges at the full retail rate within the billing month on a single register, so a battery does not reduce the monthly bill here (bill arbitrage ~0) — only the net monthly excess earns the generation rate. NEM sizing is the 120%-of-usage rule (25 kW is the Level-1 interconnection threshold). Service charge $6.50/mo; distribution energy 3.6046¢/kWh (eff. 3/1/2026). FirstEnergy Ohio 2025 supply-rate impact was ~13.3% total-bill at Toledo Edison (June 1, 2025; the higher supply-hike figure is FE's West Virginia pattern). The PUCO base rate case (24-0468-EL-AIR, Order Nov 19, 2025) adopted a consolidated ~+$34M for the three Ohio Companies combined at 9.63% ROE (tariffs eff. 3/1/2026). NEM applies to standard-service customers; shopping (CRES) customers are credited per their supplier.
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