Net Metering (Ohio)

From Open Energy Information

Last modified on February 12, 2015.

Rules Regulations Policies Program

Place Ohio
Name Net Metering
Incentive Type Net Metering
Applicable Sector Commercial, Industrial, Residential
Eligible Technologies Biomass, Fuel Cells, Fuel Cells using Renewable Fuels, Hydroelectric, Landfill Gas, Microturbines, Photovoltaics, Small Hydroelectric, Solar Thermal Electric, Wind
Active Incentive Yes
Implementing Sector State/Territory
Energy Category Renewable Energy Incentive Programs
Aggregate Capacity Limit No limit specified
Applicable Utilities Investor-owned utilities

Meter Aggregation Not addressed
Net Excess Generation Credited to customer's next bill at unbundled generation rate; customer may request payment for excess at end of 12-month billing period

REC Ownership Not addressed

System Capacity Limit No capacity limit specified, but system must be sized primarily to offset part or all of customer's electricity requirements

Date added to DSIRE 2000-01-01
Last DSIRE Review 2012-11-19

References DSIRE[1]


Note: In July 2012, the Public Utilities Commission of Ohio (PUCO) opened a docket (Case 12-0250-EL-RDR) to review the net metering rules for investor-owned utilities. Details will be posted as more information is available. Ohio's net-metering law requires electric distribution utilities to offer net metering to customers who generate electricity using wind energy, solar energy, biomass, landfill gas, hydropower, fuel cells or microturbines. Although there is no stated capacity limit on an individual net-metered energy system in Ohio, the Public Utilities Commission of Ohio (PUCO) has ruled that "an implied limitation" is in effect because, by statute, a net-metered system must be "intended to offset part or all of the customer-generator's electricity requirements." Net-metered customers are required to use a single meter capable of recording flow of electricity in each direction. Net-metered customers may request refunds of net excess generation (NEG) credits accumulated over a 12-month period.

The electric distribution utilities and competitive retail electric service providers are required to develop a separate net metering tariff for hospital facilities. Qualifying hospital customer generators are not limited to the same energy generation technologies or system size restrictions described above for non-hospital net-metered customers. Two meters or a single meter with two registers capable of separately measuring flow of electricity in both directions are required for hospital net metering. All electricity generated by the hospital (including that generation used directly by the hospital and that which is sent back to the utility) will be credited at the market value at the time of generation. Electricity flowing from the utility and used by the hospital will be charged at the same rates as normal, as if the hospital were not net metering. The monthly bill will calculate the net of this total hospital customer generation vs. utility provided electricity to determine the bill. Any net credit dollar amount will be used against the hospital’s bill until the hospital requests a refund for any accumulated credits over a 12-month period.

Net-metered systems must meet safety standards specified by the National Electrical Code (NEC), the Institute of Electrical and Electronics Engineers (IEEE), and Underwriters Laboratories (UL). Utilities may not require customer-generators to comply with additional safety and performance standards.

History: Ohio’s original net-metering law was enacted in 1999 as part of the state’s electric-industry restructuring legislation. The Public Utilities Commission of Ohio (PUCO) later revised its net metering rules in March 2007, prompted by the federal Energy Policy Act of 2005 (EPAct 2005). Initially, the Public Utilities Commission of Ohio (PUCO) required utilities to credit customer net excess generation (NEG) at the utility's full retail rate. However, in June 2002, the Ohio Supreme Court decided that this exchange was illegal (Case No. 01-0573) and ruled that each utility must credit NEG to the customer at the utility's unbundled generation rate. Legislation enacted in May 2008 (S.B. 221) further amended Ohio's net metering law by: (1) removing the 1% aggregate capacity limit for all customer-generators; and (2) removing all limitations related to energy generation technology and system size on systems sited at hospitals.

Incentive Contact

Contact Name Jon Whitis
Department Ohio Public Utilities Commission
Address 180 East Broad Street
Place Columbus, Ohio
Zip/Postal Code 43215-3793
Phone (614) 466-0349
Fax (614) 466-7366

Authorities (Please contact the if there are any file problems.)

Authority 1: ORC 4928.67
Date Effective 10/5/1999 (subsequently amended)
Date Enacted 1999-07-06

Authority 2: OAC 4901:1-10-28
Date Effective 09/18/2000 (subsequently amended)
Date Enacted 2000-04-06

Authority 3: OAC 4901:1-21-13
Date Effective 09/18/2000 (subsequently amended)
Date Enacted 2000-04-06

Authority 4: Finding and Order Docket 06-0653-EL-ORD
Date Effective 2009-06-29
Date Enacted 2008-11-05

  • Incentive and policy data are reviewed and approved by the N.C. Solar Center's DSIRE project staff.[1]


  1. 1.0 1.1  "Database of State Incentives for Renewables and Efficiency (DSIRE)"