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Incentives/Policies for Renewables & Efficiency

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Property Tax Exemption for Solar and Wind Energy Systems   

Last DSIRE Review: 10/15/2014
Program Overview:
State: Maryland
Incentive Type: Property Tax Incentive
Eligible Renewable/Other Technologies: Solar Water Heat, Solar Thermal Electric, Photovoltaics, Wind
Applicable Sectors: Commercial, Industrial, Residential
Amount:100% real property tax exemption for solar and wind energy property
Authority 1:
Date Enacted:
Date Effective:
Md Code: Property Tax ยง7-242
04/24/2008 (subsequently amended)

In May 2007, Maryland established a property tax exemption for residential solar energy systems. Under this law solar energy devices “installed to heat or cool a dwelling, generate electricity to be used in the dwelling, or provide hot water for use in the dwelling” were exempt from state -- but not local -- property taxes. However, in April 2008 H.B. 377 was enacted, repealing this exemption beginning July 1, 2008. In place of the rescinded exemption, H.B. 377 inserted another provision exempting solar photovoltaic (PV) and solar hot water systems from real property taxes. The exemption now applies equally to state and local real property taxes. In addition, by removing the term "dwelling" and replacing it with "structure", the revised exemption appears to no longer be limited to residential systems.

In May 2009 the exemption was amended yet again by H.B. 1171 to add "residential wind energy equipment" as an eligible technology. In order to qualify, equipment must be sited on residential property and produce electricity to be used in a structure on that property. The new law also revised the definition of eligible solar property to include devices that use "solar thermal electric energy" to generate electricity for use in a structure. A separate piece of legislation, S.B. 621, subsequently amended the definition of solar energy property to include property that generates electricity which is put on the electrical grid (e.g., as in a net metering arrangement). These new provisions took effect July 1, 2009.

A separate provision of Maryland property tax law offers a special assessment for geothermal and solar heating and cooling systems. Thus, solar hot water, PV, and wind energy systems are granted an exemption from real property taxes while solar and geothermal heating and cooling systems are granted a special assessment that makes their assessed value equivalent to a conventional system.

  Department of Assessments and Taxation
Real Property Valuation Division
300 W. Preston Street
Baltimore, MD 21201-2395
Phone: (410) 767-1199
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.