What NEC edition does Ohio use for solar permits in 2026?

Ohio enforces NEC 2023 (NFPA 70-2023), effective March 2024. NEC 2023 Article 690 (Solar Photovoltaic Systems) includes updated labeling, rapid shutdown, and wiring requirements for solar installations. While NEC 2023 is the statewide standard, the Ohio Board of Building Standards certifies county, township, and municipal building departments to enforce electrical and building codes — meaning individual AHJs may still be transitioning and could have additional local requirements. Every Permit Design Ohio plan set references NEC 2023 and confirms the specific AHJ's enforcement status before delivery.

What building code does Ohio use for residential solar?

Ohio enforces the Residential Code of Ohio (RCO) for one-, two-, and three-family dwellings, and the Ohio Building Code (OBC) for commercial and multi-family structures. Structural calculations for solar installations must comply with ASCE 7 wind and snow load criteria for the specific project location. The Ohio Board of Building Standards certifies local building departments — county, township, or municipal — to enforce the RCO and OBC, and certified AHJs have authority to add requirements above the state baseline. Every Permit Design Ohio residential plan set references the RCO for structural provisions; commercial and multi-family projects reference the OBC.

What is Ohio's HB 6 and how does it affect solar net metering?

House Bill 6, signed in 2019, did not eliminate Ohio net metering outright but opened the door for Ohio's investor-owned utilities to pay solar owners at the lower 'avoided-cost' rate for exported energy rather than the full retail electricity rate. Under tariffs like AEP Ohio's Schedule NEM, new customers receive retail-rate credit for self-consumption (energy used behind the meter) but only avoided-cost credit — sometimes as low as 3 cents per kWh — for excess energy exported to the grid. HB 6's passage was connected to Ohio's largest bribery scandal, involving former FirstEnergy executives and lobbyists. As of early 2026, the Ohio legislature has considered but not enacted full restoration of retail-rate net metering, and PUCO proceedings on the matter remain active. This makes system sizing critical: oversizing an Ohio system to maximize export can significantly lengthen payback given low avoided-cost export rates.

What utilities serve Ohio solar installations?

Ohio has four major investor-owned utility groups regulated by PUCO under OAC 4901:1-22. AEP Ohio serves roughly 1.5 million customers across central and southern Ohio including Columbus. FirstEnergy operates three Ohio subsidiaries: Ohio Edison (northeast/central Ohio), Toledo Edison (northwest Ohio/Toledo), and The Illuminating Company (Cleveland area). Duke Energy Ohio serves the Cincinnati area. AES Ohio (formerly Dayton Power & Light) serves the Dayton area. Ohio operates a deregulated electricity market with Competitive Retail Electric Service (CRES) providers, but interconnection for solar always runs through the local distribution utility regardless of retail electricity supplier.

What are FirstEnergy and AEP Ohio interconnection fees and timelines?

FirstEnergy charges tiered interconnection application fees: Level 1 (smallest systems) $50, Level 2 $50 plus $1 per kW, Level 3 $100 plus $2 per kW. AEP Ohio requires a $300 pre-application fee plus tiered interconnection fees, with an average timeline of 35 days from application to interconnection agreement. Duke Energy Ohio and AES Ohio offer comparable tiered fee structures. Net metering is available for systems up to 25 kW under PUCO rules. All four utility groups maintain distinct interconnection application portals — using the wrong portal or fee schedule causes processing delays.

What is the Ohio SREC market?

Ohio operates a Solar Renewable Energy Certificate (SREC) market where solar owners earn one SREC per MWh of generation. The Ohio SREC market is currently valued at approximately $3 per MWh and is available through January 2028 under current program rules. As an alternative, Ohio solar projects can sell into the Pennsylvania Tier I REC market, which trades at approximately $40 per MWh — significantly higher than Ohio's in-state SREC value. Installers should evaluate both markets when advising customers on long-term solar revenue, as the PA Tier I option may provide materially better economics despite Ohio system location.

Does Ohio have a solar property tax exemption?

Yes. Ohio provides a property tax exemption for renewable energy projects under 250 kW — the added value from a qualifying solar installation is exempt from property tax assessment. This covers the vast majority of residential solar installations, which are typically well under the 250 kW threshold. The exemption requires an application process through the relevant county auditor in most cases — Permit Design includes property tax exemption reference documentation in Ohio plan sets to support this application.

What is the dual-permit process for Ohio solar?

Ohio solar installations require a building permit under the Residential Code of Ohio (RCO) or Ohio Building Code (OBC) AND a separate electrical permit under NEC 2023, both issued by the certified local AHJ. A common permitting mismatch occurs when installers apply only for a building permit without accounting for the separate electrical permit requirement — a rooftop system that clears building permit review may still require a distinct electrical inspection before the utility (AEP Ohio, FirstEnergy, Duke Energy Ohio, or AES Ohio) will authorize energization. Final AHJ approval on both permits is required before the utility will energize the interconnection.

What are Ohio's snow and wind load requirements for solar?

Ohio structural calculations for solar must comply with ASCE 7 wind and snow load criteria specific to the project location. Northern Ohio counties along Lake Erie (Cuyahoga, Lake, Lorain, Ashtabula, Erie) experience lake-effect snow loading, generally 25-30 psf. Southern and central Ohio counties (Hamilton, Franklin, Montgomery) typically see lower snow loads around 15-20 psf. Wind loads across Ohio generally fall in the 90-115 mph range per ASCE 7-22, with some variation by exposure category. Every Permit Design Ohio plan set applies county-specific ASCE 7-22 load values to structural calculations.

How long does Ohio solar permitting take?

Ohio permit timelines vary by certified AHJ. Columbus (Franklin County): 2-4 weeks. Cincinnati (Hamilton County): 2-4 weeks. Cleveland (Cuyahoga County): 2-4 weeks. Dayton (Montgomery County): 2-3 weeks. Most Ohio counties: 2-4 weeks. Rural counties: 1-3 weeks. AEP Ohio interconnection: averages 35 days from application to agreement. FirstEnergy, Duke Energy Ohio, and AES Ohio: typically 4-6 weeks. Submit building permit, electrical permit, and utility interconnection application simultaneously to run all three timelines in parallel.

How long does it take to get an Ohio solar permit plan set from Permit Design?

Permit Design delivers Ohio solar permit plan sets within 24-48 hours. Every plan set references NEC 2023 electrical code, RCO structural provisions for 1-3 family dwellings (OBC for commercial), county-specific ASCE 7-22 snow and wind loads, and the correct utility interconnection package — AEP Ohio, FirstEnergy subsidiary, Duke Energy Ohio, or AES Ohio — with appropriate tiered fee schedule documentation. HB 6 net metering and Ohio SREC/PA Tier I REC documentation included. Free revisions until your Ohio AHJ approves.

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Franklin County · NEC 2020 · AEP Ohio · Snow Loads Required · AHJ Confirmed

Columbus Solar Permit Design.
AEP Ohio Net Metering. Cold Climate · Snow Loads Required · Many Metro AHJs.

Columbus solar permit drawings for City of Columbus and all Franklin County AHJs. AEP Ohio net metering under Ohio PUC rules. Cold climate: ASCE 7 snow loads required in every plan set structural section. Many AHJs across Franklin, Delaware, Licking, and Union counties. Ohio property tax exemption on solar. NEC 2020. Free for first-time clients.

⚡ Order Your Columbus Plan Set AEP Ohio + Snow Loads ↓

AEP Ohio Net metering · Ohio PUC rules

Snow Loads ASCE 7 required in plan sets

Many AHJs Franklin County + suburbs confirmed

Free AHJ revisions

AEP Ohio NEMNet metering · Ohio PUC rules

~20 psfColumbus ground snow load · Structural calcs required

OH Property TaxExemption on solar energy systems

24–48 hrStandard plan set delivery

2026 CodesElectrical: NEC 2020 (Ohio)Structural: IBC/IRC 2021 (OH) · ASCE 7 snow loads requiredUtility: AEP Ohio · Net metering under Ohio PUC rulesCold climate: ~20 psf ground snow load · Snow + wind combined calcsLast verified July 2026

AEP Ohio Net Metering + Cold Climate Snow Loads Required in Every Plan Set

AEP Ohio Net Metering Under Ohio PUC Rules. Columbus Plan Sets Must Include ASCE 7 Snow Loads. Many Franklin County AHJs — Columbus Is Ohio's Fastest-Growing Major City.

AEP Ohio serves Columbus and central Ohio with net metering under Ohio Public Utilities Commission rules. Columbus is Ohio's fastest-growing major city — consistent population growth, rising AEP Ohio electricity rates, and a large suburban housing base create a strong and growing residential solar pipeline. Cold climate plan sets are required: Columbus ground snow load is approximately 20 psf under ASCE 7, requiring combined snow, wind, and structural calculations. Many AHJs across Franklin, Delaware, Licking, and Union counties must be confirmed per address before building.

AEP Ohio · Net Metering Under Ohio PUC Rules

✅AEP Ohio net metering: credits solar exports at retail rate under Ohio PUC rules

✅AEP Ohio interconnection: submit simultaneously with Columbus or suburb building permit

✅Ohio property tax exemption for solar energy systems — permanent

⚠️Some Columbus metro areas may be served by Columbus Southern Power or municipal utilities

✅Ohio RPS creates market for renewable energy credits (RECs) from solar generation

Cold Climate · Snow Loads · Many Metro AHJs · NEC 2020

⚠️Cold climate: ASCE 7 snow load calculations required in all Columbus plan set structural sections

⚠️Columbus ground snow load ~20 psf — higher than Sun Belt, lower than Chicago/Milwaukee

⚠️City of Columbus, Dublin, Westerville, Gahanna, Grove City, Hilliard all have separate depts

✅All Columbus metro AHJs use NEC 2020 under Ohio state adoption

✅No PE stamp required for standard residential rooftop solar in Ohio

⚠️ Columbus plan sets without ASCE 7 snow load calculations fail Ohio structural review. Sun Belt plan set formats used in Columbus without Ohio-specific structural inputs will not pass Franklin County or City of Columbus building review. We format every Columbus plan set with Ohio cold climate structural methodology.

Why Columbus Installers Outsource

Snow Loads Missing. Suburb AHJ Mismatch. AEP Ohio Format Not Used.

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Plan Sets Without Columbus Snow Load Calculations Fail Ohio Structural Review

Columbus ground snow load is approximately 20 psf under ASCE 7. Ohio requires combined snow, wind, and structural calculations in solar plan sets. Plan sets formatted for Sun Belt markets without Ohio-specific ASCE 7 snow loading fail Columbus and suburban Franklin County building review and generate correction requests that delay permits.

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Routing a Dublin or Westerville Address to City of Columbus Building

City of Columbus Building and Zoning covers only Columbus city-limit addresses. Dublin, Westerville, Gahanna, Grove City, Hilliard, and Powell maintain separate building departments. A plan set sent to City of Columbus for a Dublin address routes to the wrong department. We confirm AHJ per address before building every Columbus metro plan set.

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AEP Ohio Net Metering Application Format — Ohio-Specific Documentation

AEP Ohio's interconnection process for residential solar follows Ohio PUC rules with specific documentation requirements. Generic interconnection packages formatted for other utilities may require revision from AEP Ohio, delaying the interconnection approval and pushing back the installation timeline.

Columbus Solar Permit Services

AEP Ohio Interconnection. NEC 2020. All Columbus AHJs.

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Columbus Residential Solar Permit Design

NEC 2020, IBC/IRC 2021. AEP Ohio interconnection. AHJ confirmed per address. ASCE 7 Columbus snow load calcs. Battery (NEC 2020 Article 706) where included. Ohio property tax exemption note.

NEC 2020AEP OhioSnow Load Calcs

Residential Solar Permit Design Services →

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Columbus Commercial Solar Permit Design

Commercial rooftop drawings for Franklin County. NEC 2020, IBC 2021. AEP Ohio commercial interconnection. Columbus's large state government, healthcare, and tech sector creates commercial solar demand. PE stamp. Ohio ASCE 7 snow and wind calcs.

IBC 2021State Gov / TechPE Stamp

Commercial Solar Permit Design Services →

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Columbus Battery Permit Plans

Solar-paired and standalone battery permit drawings. NEC 2020 Article 706. AEP Ohio storage interconnection. Columbus's winter ice events and summer thunderstorm season create battery resilience demand. Battery maximizes self-consumption under AEP Ohio net metering.

NEC 2020 Art.706Winter ResilienceAEP Ohio Storage

Battery Storage Permit Design Services →

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Columbus EV Charger Permit Design

EV charger permit drawings for Franklin County. NEC 2020 Article 625. Columbus's large state government, Ohio State University, and healthcare sector drives commercial fleet EV demand. Residential EV growing in Dublin, Westerville, and suburban Delaware County.

NEC 2020 Art.625OSU / State GovLoad Calcs

EV Charger Permit Design Services →

Columbus Solar Market — 2026

Four Things That Define Solar in Columbus.

AEP Ohio NEM

AEP Ohio Net Metering — Credits Solar Exports at Retail Rate Under Ohio PUC

AEP Ohio offers net metering for residential solar under Ohio Public Utilities Commission rules. Net metering credits solar exports at the full retail electricity rate. Ohio's RPS also creates a market for renewable energy credits from solar generation. Rising AEP Ohio electricity rates improve Columbus solar ROI year over year — the value of self-consumed solar increases with each rate increase.

~20 psf

Cold Climate — ASCE 7 Snow Loads Required in Every Columbus Plan Set

Columbus ground snow load under ASCE 7 is approximately 20 psf. Ohio requires combined dead, live, wind, and snow load structural calculations in solar plan sets. This is a key technical difference from Sun Belt solar plan sets. Every Columbus plan set we build includes Ohio-specific ASCE 7 snow loading in the structural section.

Fast Growth

Columbus — Ohio's Fastest-Growing Major City — Large Solar Pipeline

Columbus is Ohio's fastest-growing major city, driven by Ohio State University, a diversified healthcare and tech sector, and consistent net in-migration. Population growth combined with rising AEP Ohio rates and strong suburban new construction create a large and growing residential solar pipeline. The Dublin, Westerville, New Albany, and Powell corridors have some of the highest-income suburban ZIP codes in Ohio.

OH Exemption

Ohio Property Tax Exemption — Solar Adds Value Without Adding Tax Burden

Ohio exempts solar energy systems from property tax assessment. A solar installation increasing home value pays zero additional property taxes under Ohio law. Ohio has no state solar income tax credit in 2026. The property tax exemption is the primary state-level incentive for Columbus homeowners after the federal 25D credit expiration.

AHJ Solar Permit Design Columbus

Columbus and All Surrounding Jurisdictions — AEP Ohio Interconnection Formatted.

We cover City of Columbus and all Franklin County metro AHJs. AEP Ohio interconnection formatted.

Jurisdiction	Utility	Permit Type	Key Notes	Review Time
City of Columbus	AEP Ohio	Bldg + Elec	Columbus Building and Zoning · City addresses · 2–4 week review	2–4 weeks
Dublin (Franklin/Union Co.)	AEP Ohio	Bldg + Elec	City of Dublin Building · Own department · NW Columbus suburb	2–3 weeks
Westerville (Franklin/Delaware)	AEP Ohio	Bldg + Elec	City of Westerville Building · NE Columbus suburb	2–3 weeks
Gahanna / New Albany	AEP Ohio	Bldg + Elec	Own building departments · E. Franklin County	2–3 weeks
Grove City / Hilliard	AEP Ohio	Bldg + Elec	Own building departments · SW/W Franklin County	2–3 weeks
Franklin County (unincorp.)	AEP Ohio	County Bldg + Elec	Franklin County Building · Unincorporated areas	2–4 weeks
Delaware County suburbs	AEP Ohio	County Bldg + Elec	Delaware County Building · Powell, Lewis Center, Sunbury	2–3 weeks

References: AEP Ohio Solar · Columbus Building and Zoning

What You Get

Solar Permit Package Columbus — Columbus Solar Permit Plan Sets. AEP Ohio Ready.

Cover Sheet — Columbus PV Permit Plans

NEC 2020 · IBC/IRC 2021 (OH) · Columbus AHJ · AEP Ohio utility

Site Plan

Meter and AEP Ohio interconnection access · ASCE 7 local wind values · Applicable wind zone

Roof Layout

Columbus rooftop conditions · Array diagram · Pitch, azimuth, setbacks · IFC fire access paths

Single-Line Diagram

NEC 2020 §690.12 rapid shutdown · Battery (Article 706) where included · AEP Ohio bidirectional meter

Structural Calculations

IBC/IRC 2021 (OH) · ASCE 7 local wind loads · Gravity and lateral loads · PE stamp for commercial

Rapid Shutdown + Labels

NEC 2020 §690.12 · Battery shutdown interface (Article 706)

Equipment Datasheets + AEP Ohio Interconnection Package

UL-listed module, inverter, racking, and battery datasheets · AEP Ohio interconnection application · State solar incentive notes

Columbus Plan Set — 24 Hours.

AEP Ohio Interconnection · NEC 2020 · All Columbus AHJs

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How It Works

Three Steps. 24 Hours. Columbus AHJ Ready.

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Submit the Project

Share address, specs, and design. We confirm the AHJ, AEP Ohio interconnection, and NEC 2020 format.

5 minutes

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We Build the Plan Set

NEC 2020, IBC/IRC 2021 (OH). Columbus AHJ formatted. AEP Ohio interconnection package. Battery where included.

24–48 hours

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Submit Permit + Interconnection

Submit Columbus or suburb building permit and AEP Ohio interconnection simultaneously. AEP Ohio interconnection: 4–8 weeks. Free revisions for any AHJ correction on our design.

Free revisions

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The Permit Design Commitment

Solar permit services in Columbus — what every installer and EPC gets.

✓AHJ confirmed per address before we build

✓AEP Ohio interconnection package included

✓24–48 hour delivery on standard residential projects

✓NEC 2020 formatted for OH — not California NEC 2026

✓Free revisions for any AHJ correction on our design

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First plan set free.
Licensed installers & EPCs only.

FAQ

Questions Columbus Installers Ask Us

AEP Ohio (American Electric Power) is the primary electric utility serving Columbus and central Ohio. AEP Ohio offers net metering for residential solar under Ohio Public Utilities Commission rules. We confirm utility per address — some Columbus metro areas may be served by Columbus Southern Power or municipal utilities.

Ohio has no state income tax credit for solar in 2026. Ohio has a property tax exemption for solar energy systems. AEP Ohio offers net metering at the retail rate. Federal 25D residential credit expired December 31, 2025. Ohio's Renewable Portfolio Standard (RPS) creates a market for renewable energy credits (RECs).

NEC 2020 under Ohio state adoption.

Ohio has no statewide PE stamp requirement for standard residential rooftop solar. City of Columbus Building and Zoning does not require a PE stamp for standard residential rooftop installations. Commercial and larger systems require PE-stamped structural drawings.

Yes — Ohio requires ASCE 7 snow load calculations. Columbus ground snow load is approximately 20 psf. Combined with wind loads, cold climate structural calculations are required for all Columbus plan sets.

City of Columbus Building and Zoning handles permits for Columbus city-limit addresses. Franklin County Building handles unincorporated county areas. Major suburbs — Dublin, Westerville, Gahanna, Grove City, Hilliard — each have their own building departments. We confirm AHJ per address.

Most Columbus residential plan sets ship in 24 to 48 hours. Battery same day. Commercial: 3 to 5 business days. Rush available.

Nearby Cities

🏭 Detroit 🏙️ Chicago 🏎️ Indianapolis 📍 Ohio →

Our Services

🏠 Residential Solar 🏗️ Commercial Solar 🔋 Battery Storage 🚗 EV Charger

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Reviewed by the Permit Design Engineering Team — Licensed PE AEP Ohio net metering (Ohio PUC rules, retail rate) confirmed. Columbus ASCE 7 ground snow load (~20 psf) confirmed. NEC 2020 Ohio adoption confirmed. IBC/IRC 2021 Ohio adoption confirmed. Ohio property tax exemption for solar confirmed. Federal 25D expiration confirmed. Last reviewed July 2026.

NEC 2020AEP Ohio Net MeteringSnow Load CalcsColumbus Solar Drafting ServicesColumbus Solar CAD ServicesJuly 2026

Columbus Solar Permit Design.
AEP Ohio Net Metering. Cold Climate · Snow Loads Required · Many Metro AHJs.

AEP Ohio Net Metering Under Ohio PUC Rules. Columbus Plan Sets Must Include ASCE 7 Snow Loads. Many Franklin County AHJs — Columbus Is Ohio's Fastest-Growing Major City.

Snow Loads Missing. Suburb AHJ Mismatch. AEP Ohio Format Not Used.

AEP Ohio Interconnection. NEC 2020. All Columbus AHJs.

Four Things That Define Solar in Columbus.

Columbus and All Surrounding Jurisdictions — AEP Ohio Interconnection Formatted.

Solar Permit Package Columbus — Columbus Solar Permit Plan Sets. AEP Ohio Ready.

Columbus Plan Set — 24 Hours.

Three Steps. 24 Hours. Columbus AHJ Ready.

Questions Columbus Installers Ask Us

Columbus Plan Sets — 24 Hours.

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Columbus Solar Permit Design.AEP Ohio Net Metering. Cold Climate · Snow Loads Required · Many Metro AHJs.

AEP Ohio Net Metering Under Ohio PUC Rules. Columbus Plan Sets Must Include ASCE 7 Snow Loads. Many Franklin County AHJs — Columbus Is Ohio's Fastest-Growing Major City.

Snow Loads Missing. Suburb AHJ Mismatch. AEP Ohio Format Not Used.

AEP Ohio Interconnection. NEC 2020. All Columbus AHJs.

Four Things That Define Solar in Columbus.

Columbus and All Surrounding Jurisdictions — AEP Ohio Interconnection Formatted.

Solar Permit Package Columbus — Columbus Solar Permit Plan Sets. AEP Ohio Ready.

Columbus Plan Set — 24 Hours.

Three Steps. 24 Hours. Columbus AHJ Ready.

Questions Columbus Installers Ask Us

Columbus Plan Sets — 24 Hours.

Columbus Solar Permit Design.
AEP Ohio Net Metering. Cold Climate · Snow Loads Required · Many Metro AHJs.