Solar Tax Credit Information provided by St Louis Renewable Energy

Tax Credits


An investment tax credit provides a direct reduction in a taxpayer’s tax liability for a portion of the cost of purchasing and installing a solar energy system. Historically, federal and state governments have used tax credits as one of the predominant tools to encourage renewable energy development. Although solar tax credits are typically federal- and state-level policies, municipal governments that impose income, franchise or other similar taxes can consider credits or exemptions to encourage solar adoption.

Tax credits are fairly easy to administer compared with other financial incentives and may be more politically viable than cash payments because they do not require an annual appropriation. If tax credits are successful in expanding markets, they can ultimately result in a net gain in public revenue. One of the weaknesses often attributed to tax incentive policies is that entities without tax liability, such as government agencies, non-profits and schools, are not eligible for the incentive despite their increasing interest in utilizing solar technologies. In addition, system owners or investors with limited state tax burdens may not be able to take full advantage of state tax credits. In recent years, third-party system ownership combined with power-purchase agreements[1] and other financing models have helped mitigate these obstacles.

Although state tax credits may not be the primary motivating factor influencing purchasing decisions, they may help “seal the deal”. This policy option can be especially helpful in states where public benefits funds or other direct funding sources are not available.[2]  A few states also offer small production tax credits for solar, though these credits are typically very modest and are not major drivers of solar development.


[1]  A third-party business or investor installs and owns a solar system on a host customer’s property and sells the power produced by the system to the host customer for a set period. The third-party investor utilizes the tax credits and benefits available for the solar system (e.g. tax credits, rebates). These power-purchase agreements are often used by entities that cannot utilize the tax credits, entities that prefer not to own and maintain a system , or entities that lack financial capital to purchase equipment.
[2]  Case Studies on the Effectiveness of State Financial Incentives for Renewable Energy, Susan Gouchoe, Valerie Everette, and Rusty Haynes (NC Solar Center). National Renewable Energy Laboratory, NREL/SR-620-32819. 2002.

Business Energy Investment Tax Credit (ITC)   

Last DSIRE Review: 11/13/2012
Program Overview:
State: Federal
Incentive Type: Corporate Tax Credit
Eligible Renewable/Other Technologies: Solar Water Heat, Solar Space Heat, Solar Thermal Electric, Solar Thermal Process Heat, Photovoltaics, Landfill Gas, Wind, Biomass, Hydroelectric, Geothermal Electric, Fuel Cells, Geothermal Heat Pumps, Municipal Solid Waste, CHP/Cogeneration, Solar Hybrid Lighting, Hydrokinetic Power (i.e., Flowing Water), Anaerobic Digestion, Small Hydroelectric, Tidal Energy, Wave Energy, Ocean Thermal, Fuel Cells using Renewable Fuels, Microturbines, Geothermal Direct-Use
Applicable Sectors: Commercial, Industrial, Utility, Agricultural
Amount: 30% for solar, fuel cells, small wind and PTC-eligible technologies;*
10% for geothermal, microturbines and CHP*
Maximum Incentive: Fuel cells: $1,500 per 0.5 kW
Microturbines: $200 per kW
Small wind turbines placed in service 10/4/08 – 12/31/08: $4,000
Small wind turbines placed in service after 12/31/08: no limit
All other eligible technologies: no limit
Eligible System Size: Small wind turbines: 100 kW or less (except unlimited for PTC-eligible wind)*
Fuel cells: 0.5 kW or greater
Microturbines: 2 MW or less
CHP: 50 MW or less*
Marine and Hydrokinetic: 150 kW or greater (as defined by PTC eligibility)
Equipment Requirements: Fuel cells, microturbines and CHP systems must meet specific energy-efficiency criteria
Authority 1: 26 USC § 48
Authority 2: Instructions for IRS Form 3468
Authority 3: IRS Form 3468

Note: The American Recovery and Reinvestment Act of 2009 allows taxpayers eligible for the federal renewable electricity production tax credit (PTC)* to take the federal business energy investment tax credit (ITC) instead of taking the PTC for new installations. The eligible technologies listed above reflect this allowance in that they include PTC-eligible technologies/resources such as landfill gas and wave power that are now eligible for the ITC. Please see the DSIRE PTC summary for further information regarding eligibility. 

The federal business energy investment tax credit available under 26 USC § 48 was expanded significantly by the Energy Improvement and Extension Act of 2008 (H.R. 1424), enacted in October 2008. This law extended the duration — by eight years — of the existing credits for solar energy, fuel cells and microturbines; increased the credit amount for fuel cells; established new credits for small wind-energy systems, geothermal heat pumps, and combined heat and power (CHP) systems; allowed utilities to use the credits; and allowed taxpayers to take the credit against the alternative minimum tax (AMT), subject to certain limitations. The credit was further expanded by the American Recovery and Reinvestment Act of 2009, enacted in February 2009.

In general, credits are available for eligible systems placed in service on or before December 31, 2016:

  • Solar. The credit is equal to 30% of expenditures, with no maximum credit. Eligible solar energy property includes equipment that uses solar energy to generate electricity, to heat or cool (or provide hot water for use in) a structure, or to provide solar process heat. Hybrid solar lighting systems, which use solar energy to illuminate the inside of a structure using fiber-optic distributed sunlight, are eligible. Passive solar systems and solar pool-heating systems are not eligible.

Twitter          (314) 669-5598          Facebook


2 thoughts on “Solar Tax Credit Information provided by St Louis Renewable Energy”

  1. Layne Adams- I agree with your comment. And would also like to point out that it seems banks are now getting into the Clean Energy finance business! Thanks to the positive returns from previous solar projects.


  2. Hi there! great stuff, glad to drop by your page and found these very interesting and informative. Thanks for sharing about solar energy tax credits, keep it up! Despite this growing demand and support for renewable energy, a fragile economy, volatile commodity pricing, and the lack of national energy policy have combined to pave a challenging road for renewable energy advocates and stakeholders. Economies of scale and new manufacturing processes are making alternative energy production more competitive, but until it achieves parity through innovation or regulatory policy, the success of green energy companies may largely depend on their ability to optimize Green Energy and Cleantech tax incentives to attract investors and maintain sustainable balance sheets.


Leave a Reply-Scotty will respond asap

Fill in your details below or click an icon to log in: Logo

You are commenting using your account. Log Out /  Change )

Google+ photo

You are commenting using your Google+ account. Log Out /  Change )

Twitter picture

You are commenting using your Twitter account. Log Out /  Change )

Facebook photo

You are commenting using your Facebook account. Log Out /  Change )


Connecting to %s