Internal Revenue Code. The Internal Revenue Code, as amended on January 1, 1988, and in effect for the taxable year.
Net Expenditure. The total of the purchase price for any renewable energy source property, plus installation cost, but less any credits received under the Internal Revenue Code and less grants or rebates received from the United States Department of Housing and Urban Development.
Renewable Energy Source Property. Property, including materials and component parts thereof, separately purchased and assembled by the residential property owner or tenant which, when installed in connection with a dwelling, transmits or uses solar energy or other form of renewable energy for the purposes of heating or cooling such dwelling or providing hot water for use within such dwelling, or for producing electricity for such purposes; wind energy for nonbusiness residential purposes is also renewable energy source property. To qualify as renewable energy source property, the original use of the property must begin with the taxpayer, the property must reasonably be expected to remain in operation for at least five years, and the property must meet quality standards as prescribed by 830 CMR 62.6.1.
Except as stated in 830 CMR 62.6.1, renewable energy source property does not include heating or cooling systems used to supplement renewable energy source equipment in heating or cooling a residence when such systems employ a form of energy other than solar or wind. For example, heat pumps or oil or gas furnaces used in connection with renewable energy source property are not renewable energy source property.
Solar Energy Property. Property which, when installed in connection with a dwelling, transmits or uses solar energy directly to heat or cool a dwelling or to provide hot water for use within a dwelling, or to produce electricity for such purposes, and which otherwise meets the requirements of 830 CMR 62.6.1 for renewable energy source property. Property which uses fuel or energy only indirectly derived from solar energy, such as fossil fuel or wood, is not solar energy property.
Passive and active solar systems, and portions of the structure of the principal residence when the sole purpose of such portions is to transmit or use solar radiation or to enhance the collection and storage of solar energy by such systems, are solar energy property. For example, root ponds, roof collectors, freestanding thermal containers, and non-window glazing may qualify for the credit. However, portions of the structure of a principal residence, equipment, and materials which serve a dual purpose along with energy transmission (i.e., that serve as a structural component of the residence or that have a significant structural function) are not solar energy property. For example, roofs, windows, walls, and greenhouses are not solar energy property.
Examples of items that may qualify as solar energy property include collectors used to absorb sunlight and create hot liquids or air, storage tanks to store hot liquids, rockbeds to store hot air, thermostats to activate pumps or fans which circulate hot liquid or air, and heat exchangers which use hot liquids or air to create hot air or water.
Wind Energy Property. Property which, when installed in connection with a residential property, transmits or uses wind energy to produce energy in any form for nonbusiness residential purposes and which otherwise qualifies as renewable energy source property. Wind energy property generally uses wind to generate electricity, or mechanical forms of energy. Windmills and wind-driven generators are examples of wind energy property.
If an owner or tenant changes his or her principal place of residence within a taxable year an energy credit may be claimed for each principal residence of the taxpayer, subject to the maximum credit amount of $1000. Subject to the requirements of 830 CMR 62.6.1, joint owners of residential property may share any energy credit claimed for renewable energy source property expenditures in the same proportion as their ownership interest in the residential property. Joint owners are subject to the maximum credit amount of $1000. Joint ownership includes joint tenancy, tenancy in common and tenancy by the entirety. An individual who is a stockholder in a cooperative housing corporation, or who is a member of a condominium association with respect to a condominium which he or she owns, may claim a proportionate share of the renewable energy source expenditure of such condominium association or cooperative housing corporation. A cooperative housing or condominium unit may be treated as a "principal residence" for purposes of the $1000 credit limitation.
Subject to the requirements of 830 CMR 62.6.1, joint owners of renewable energy source property may share any energy credit claimed for renewable energy source property expenditures in the same proportion as their expenditures for that property. Joint owners are subject to the maximum credit amount of $1000 per principal residence.
A renewable energy source expenditure does not include any expenditure for any energy storage medium if the primary function of that medium is not the storage of energy. For this reason expenditures for insulation, storm or thermal windows or doors, caulking or weatherstripping, furnace replacement burners, devices for modifying flue openings, furnace ignition systems, automatic setback thermostats, energy use meters and similar devices and items are not renewable energy source expenditures. In addition, the costs of maintenance and repair of installed renewable energy source property, or of leasing renewable energy source property, are not renewable energy source expenditures.
The amount of the energy credit claimed by the taxpayer in a taxable year may not exceed the taxpayer's personal income tax liability for that year. To determine the amount allowable in a given taxable year, a taxpayer must reduce the $1000 maximum credit amount by the amount of any energy credit allowed to the taxpayer in any prior taxable years with respect to the same principal residence. A taxpayer may carry-over any excess credit amount, as reduced from year to year, and apply it to his or her personal income tax liability for any one or more of the next succeeding three taxable years.
830 CMR, § 62.6.1