Tucson Electric Power (TEP) offers rebates to its residential customers who have certain energy-efficient equipment installed by participating contractors. The rebate is taken off the purchase price when you retire an older working unit or a non-working AC unit. Rebates also are available for duct sealing and AC tune-ups. Start by scheduling a free virtual home assessment. During the appointment, an advisor will help determine if your home's heating and cooling systems are operating efficiently.

Norwich Public Utilities (NPU) provides residential customers with rebates on the ENERGY STAR-qualified appliances and energy efficient HVAC equipment. Eligible appliance purchases include refrigerators/freezers, washing machines, air conditioners, and heat pump/storage water heaters. The program is limited to one rebate per appliance per residential electric utility account.  Rebates are also available for central AC systems and heat pumps; incentive amounts vary according to equipment size and efficiency level. 

In addition, NPU customers may be eligible to participate in the free-of-charge Residential Home Energy Savings Program. This program entails a home visit by a NPU technician who may conduct a blower

Note: As originally enacted, this program offered property tax credits for the installation of solar and geothermal energy devices in addition to energy conservation devices. In November 2011 the county enacted legislation (County Bill 28-11) terminating the program for solar and geothermal energy devices unless the taxpayer has entered a contract for costs or submitted an application on or before November 8, 2011. The change in law does not affect the sections of the law that allow property tax credits for various other energy conservation devices.

Montgomery County offers property tax credits on residential, owner-occupied structures for the installation

In 2008 Prince George's County enacted legislation offering a property tax credit on residential structures equipped with solar and geothermal systems. As originally devised, the credit could only be taken for systems used to heat and cool a structure or provide hot water for a structure. However, in April 2009 the county enacted additional legislation (Council Bill 05-2009) extending the property tax credit to solar-electric (PV) systems, effective May 22, 2009. Prince George's County also later extended property tax credit to include leases and solar power purchase agreements. 

The tax credit for solar or geothermal systems is equal to 50%

Indianola Municipal Utilities (IMU) offers a number of energy efficiency rebates to residential and non-residential customers. Pre-determined rebates are offered for electric appliances, recycling, air conditioners, heat pumps, thermostats, equipment maintenance and LED lighting. Non-residential pre-determined rebates include those listed minus appliances and recycling, with an added rebate for HVAC variable refrigerant flow (VRF). IMU also offers custom incentives for commercial lighting, add-on or air-to-air heat pumps and geothermal heat pumps.

Contact a representative for custom incentive amounts or visit the link here for detailed incentive amounts.

All equipment must meet efficiency standards listed on the program web site and

Spire, Inc., formerly Missouri Gas Energy (MGE), offers various rebates to residential customers for investing in energy efficient equipment and appliances. All individually metered residential units in eligible service territory may receive incentives. For more information, visit the program website.

In October 2008, New Jersey enacted legislation exempting renewable energy systems used to meet on-site electricity, heating, cooling, or general energy needs from local property taxes. (There is not a state component to property taxes in New Jersey). Eligible renewable energy systems* include solar PV, wind, fuel cells, sustainable biomass, geothermal electric, landfill gas, hydroelectric, resource recovery, wave, and tidal systems that produce electricity. Systems that produce energy from solar thermal energy (e.g., solar hot water) or geothermal energy (e.g., geothermal heat pumps) are also eligible for the exemption. The exemption may be claimed for all qualified systems installed on

Note: The Tax Cuts and Jobs Act (HR 1) of 2017 repealed the use of tax credit bonds effective January 1, 2018.  Issuers of QECBs that elected to receive direct payments from the Treasury issued on or before December 31, 2017, consistent with the Internal Revenue Code (Section 54D), will continue to receive direct payments. The summary presented below is for historical purposes. 

The Energy Improvement and Extension Act of 2008, enacted in October 2008, authorized the issuance of Qualified Energy Conservation Bonds (QECBs) that may be used by state, local and tribal governments to finance certain types of

Michigan enacted Public Act 235 in November 2023, expanding renewable energy requirements substantially and adding a clean energy standard. Renewable energy requirements are now 50% by 2030 and 60% by 2035. Clean energy requirements are 80% by 2035 and 100% by 2040.

In October 2008, Michigan enacted the Clean, Renewable, and Efficient Energy Act (Public Act 295), requiring the state's investor-owned utilities, alternative retail suppliers, electric cooperatives, and municipal electric utilities to generate 10% of their retail electricity sales from renewable energy resources by 2015. SB 438, signed in December 2016, increased this requirement to 15% by 2021, and

Note: In December 2016, the Arizona Corporation Commission (ACC) voted to replace net metering with "net billing", where new customer-generators will be credited at an avoided cost rate for energy exported to the grid. Although this entry is categorized as net metering, the policy adopted by the ACC does not meet DSIRE's definition of net metering, as excess generation will no longer be netted one-to-one against consumption over the billing period.

Eligibility and Availability

Net billing is available to investor-owned utility and electric cooperative customers who generate electricity using solar, wind, hydroelectric, geothermal, biomass, biogas, combined heat and power, or