Idaho does not have a statewide net-metering policy. However, each of the state's three investor-owned utilities -- Avista Utilities, Idaho Power and Rocky Mountain Power -- has a net-metering tariff on file with the Idaho Public Utilities Commission (PUC). The framework of the utilities' net-metering programs is similar, in that each utility's original program: (1) offers net metering to customers that generate electricity using solar, wind, hydropower, biomass or fuel cells; (2) limits net metering to 0.1% of its retail peak demand in a baseline year (2002 for Rocky Mountain Power); (3) limits residential systems to 25 kilowatts; and (4)

New electricity generating facilities built in Montana with a capacity of up to one megawatt (MW) that use an alternative renewable energy source are exempt from property taxes for five years after operation begins. The taxable value of the property varies depending on the property ownership and class. The assessed value of personal property is adjusted yearly based on a trend factor that reflects the relevant rate of inflation and on the Montana Department of Revenue’s depreciation schedule. State property tax exemption forms are available at the Department of Revenue’s county office.

"Alternative renewable energy source" includes energy sources such

Iowa imposes a replacement generation tax of $0.0006 per kilowatt-hour (kWh) on various forms of electricity generated within the state. This tax is imposed in lieu of a property tax on generation facilities.

Under the Energy Replacement Generation Tax Exemption, the following facilities are exempt from the replacement tax:

• All energy generated by methane gas conversion property to the extent the property is used in connection or conjunction with a publicly-owned sanitary landfill or used to collect waste that would otherwise be collected by or deposited with a publicly-owned sanitary landfill,
• Wind energy conversion property that is eligible for a tax

Note: Wisconsin has adopted revised interconnection rules, effective May 1, 2024. The revised rules adopt the most recent equipment standards for DG systems and inverters (IEEE Std. 1547 and UL 1741). Energy storage systems are required to be UL 9540-listed.

In February 2004, the Wisconsin Public Service Commission adopted interconnection standards for distributed generation (DG) systems up to 15 megawatts (MW) in capacity. All investor-owned utilities (IOUs) and municipal utilities are required to abide by the standard provisions. Electric cooperatives are encouraged -- but not required -- to adopt the state standards. The rules categorize DG systems by capacity and

The Minnesota Public Utilities Commission (MPUC) adopted updated interconnection standards in June 2019. The standards are modeled after the Federal Energy Regulatory Commission’s Small Generator Interconnection Process and apply to systems up to 10 MW in capacity. 

The MPUC standards, like the FERC standards, use a three-tiered approach to simplify the interconnection process:

• Inverter Process: Systems up to 20 kilowatts (kW) 
• Fast Track Process: Systems larger than 20 kW that meet the eligibility criteria in the table below 
• Study Process: Systems that fail to qualify for the Fast Track Process

The Iowa Utilities Board (IUB) adopted rules for utilities in May 2010 for the interconnection of distributed generation facilities in Iowa. The interconnection rules were most recently updated in 2017.

Rate-Regulated Utilities

Rate-regulated utilities include the state's two investor-owned utilities, MidAmerican Energy and Interstate Power and Light (IPL), and Linn County Rural Electric Cooperative, which opted to have the IUB set its rates. The rates of municipal utilities and other rural electric cooperatives are not regulated by the IUB.

Process

Interconnection standards for rate-regulated utilities apply to distributed generation facilities of up to 10 megawatts (MW)* that are not subject

The City and County of Honolulu offers loans for solar equipment through their Rehabilitation Loan Program. The program offers zero-interest loans to income-eligible homeowners for the installation of solar water heating and photovoltaic systems through the City's Rehabilitation Loan Program.

The zero-interest loans are available for single-family homes and individual condominiums with home owners association approval. For loans over $10,000, a mortgage lien will be secured on the property. Additional repairs such as re-roofing work, etc. may be included in the installation work depending on the City inspection. Qualification is dependent on income level (guidelines available on program website). The program is

Energy Trust of Oregon’s Solar Electric Incentive Program, launched in May 2003, is available to customers of Pacific Power and PGE who install new photovoltaic (PV) systems on new or existing homes, commercial and community buildings, farms, and municipal facilities. Energy Trust allocates solar incentives into steps, such that when funding in a given allocation is fully subscribed, the incentive amount steps down. A status report with current funding allocations and availability is available on Energy Trust's website. Current incentive amounts are as follows:

Residential

• Residential PGE: $800 per project
• Residential Pacific Power: $750 per project

In November 1999, JEA, a municipal utility, signed a Memorandum of Understanding with the Sierra Club and the American Lung Association of Florida to formalize the municipal utility's commitment to generate at least 7.5% of its electric capacity from green energy sources by 2015. Eligible renewable-energy resources include solar, biomass, biogas (methane from landfills and sewage treatment plants), and wind, as well as specific efficiency projects (which are located at JEA facilities where improvements made result in additional power output with no additional fuel input). To date, 95 megaWatts of clean power capacity have been achieved by JEA.

The U.S. Department of Energy's (DOE) Office of Indian Energy Policy and Programs promotes tribal energy sufficiency, economic growth, and employment on tribal lands through the development of renewable energy and energy efficiency technologies. The program provides financial assistance, technical assistance, and education and training to tribes for the evaluation and development of renewable energy resources and energy efficiency measures.

DOE's program offerings consist of program management through DOE headquarters, program implementation and project management through DOE's field offices, and technical support through DOE laboratories. Program management is carried out by DOE's Weatherization and Intergovernmental Program, which provides programmatic direction