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New Hampshire

New Hampshire

Incentives/Policies for Renewables & Efficiency

Printable Version
Interconnection Standards   

Last DSIRE Review: 07/18/2013
Program Overview:
State: New Hampshire
Incentive Type: Interconnection
Eligible Renewable/Other Technologies: Solar Thermal Electric, Photovoltaics, Landfill Gas, Wind, Biomass, Hydroelectric, Geothermal Electric, Fuel Cells, CHP/Cogeneration, Hydrogen, Anaerobic Digestion, Small Hydroelectric, Tidal Energy, Wave Energy, Renewable Fuels, Biodiesel, Fuel Cells using Renewable Fuels, Other Distributed Generation Technologies
Applicable Sectors: Commercial, Industrial, Residential, Nonprofit, Schools, Local Government, State Government, Fed. Government, Agricultural, Institutional
Applicable Utilities:All utilities
System Capacity Limit:1 MW
Standard Agreement:No
Insurance Requirements:Utilities may not require customers to purchase or maintain property insurance or comprehensive personal liability insurance
External Disconnect Switch:Not required for inverter-based systems that comply with IEEE 1547 and UL 1741
Net Metering Required:Yes
Authority 1:
Date Enacted:
Date Effective:
New Hampshire Statutes § 362-A:9
8/25/1998 (subsequently amended)
Authority 2:
Date Enacted:
New Hampshire Statutes § 362-A:1-a
1983 (subsequently amended)
Authority 3:
Date Effective:
N.H. Admin. Rules, Puc 900
1/12/2001 (subsequently amended)

New Hampshire requires all utilities selling electricity in the state to offer net metering to customers who own or operate systems up to one megawatt (1 MW) in capacity that generate electricity using solar, wind, geothermal, hydro, tidal, wave, biomass, landfill gas, bio-oil or biodiesel. CHP systems that use natural gas, wood pellets, hydrogen, propane or heating oil are also eligible.* The aggregate statewide capacity limit of all net-metered systems is 50 MW.

The New Hampshire Public Utilities Commission’s (PUC) rules for net metering, which distinguish between small customer-generators (up to 100 kilowatts) and large customer-generators (greater than 100 kW and up to 1 MW), include interconnection provisions. Interconnection for large systems is generally governed by each utility’s interconnection practices as set forth in the utility’s tariff filed with the PUC.

The interconnection provisions include timelines for the application process and inspection process, and guidance for technical studies and analysis (if necessary). Utilities generally may not require an external disconnect switch for inverter-based systems that comply with the IEEE 1547 & UL 1741 technical standards. Specific safety requirements apply to non-inverter-based systems.

Utilities may not require customers to purchase or maintain property insurance or comprehensive personal liability insurance to protect against potential liability resulting from the installation, operation or ownership of the generation and interconnection facility. A mutual indemnity agreement is generally required.

Utilities generally may not require customers who comply with these provisions to meet additional requirements, perform or pay for additional tests, or pay additional interconnection-related charges.

* CHP systems up to 30 kW must have a system efficiency of at least 80% to be eligible. CHP systems greater than 30 kW and up to 1 MW must have a fuel system efficiency of at least 65%. CHP systems may account for a maximum of 4 MW of the state’s aggregate net-metering limit.

  Tom Frantz
New Hampshire Public Utilities Commission
21 South Fruit Street
Suite 10
Concord, NH 03301
Phone: (603) 271-2431
Fax: (603) 271-3878
Web Site:
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Disclaimer: The information presented on the DSIRE web site provides an unofficial overview of financial incentives and other policies. It does not constitute professional tax advice or other professional financial guidance, and it should not be used as the only source of information when making purchasing decisions, investment decisions or tax decisions, or when executing other binding agreements. Please refer to the individual contact provided below each summary to verify that a specific financial incentive or other policy applies to your project.

While the DSIRE staff strives to provide the best information possible, the DSIRE staff, the N.C. Solar Center, N.C. State University and the Interstate Renewable Energy Council, Inc. make no representations or warranties, either express or implied, concerning the accuracy, completeness, reliability or suitability of the information. The DSIRE staff, the N.C. Solar Center, N.C. State University and the Interstate Renewable Energy Council, Inc. disclaim all liability of any kind arising out of your use or misuse of the information contained or referenced on DSIRE Web pages.

Copyright 2014 - 2015 North Carolina State University, under NREL Subcontract No. XEU-0-99515-01. Permission granted only for personal or educational use, or for use by or on behalf of the U.S. government. North Carolina State University prohibits the unauthorized display, reproduction, sale, and/or distribution of all or portions of the content of the Database of State Incentives for Renewables and Efficiency (DSIRE) without prior, written consent.