dential buildings are air conditioned and located in cooling zones 1, 2, or 3.

(u) An air source heat pump must be evaluated by a verification audit in accordance with the procedures in Subpart C of this part to determine whether savings in a specific application are sufficient to recover the costs of purchase and installation within its attributed life.

(v) A water source heat pump must be evaluated by a verification audit in accordance with the procedures in Subpart C of this part to determine whether costs savings in a specific application are sufficient to recover the costs of purchase and installation within its attributed life.

(Part B of Title IV of the Energy Conservation and Production Act, Pub. L. 94-385, 90 Stat. 1125 et seq.; also issued under Part C, Title III of the Energy Policy and Conservation Act, Pub. L. 94-163, 89 Stat. 871 et seq. (42 U.S.C. 6321 et seq.); Federal Energy Administration Act of 1974, as amended, Pub. L. 93-275 (15 U.S.C. 761 et seq.); Department of Energy Organization Act, Pub. L. 95-91, 91 Stat. 565 et seq. (42 U.S.C. 7101 et seq.); EO 11790, 39 FR 23185)

[42 FR 37800, July 25, 1977, as amended at 42 FR 61993, Dec. 8, 1977]

§ 450.33 Renewable-resource energy meas

ures.

Subject to the requirements set forth in § 450.34, a renewable-resource energy measure shall be a

(a) Agricultural waste-fired boiler, which is a system which is partially or completely fueled by agricultural residues;

(b) Geothermal space heating or cooling system, which is a system that uses heat extracted from the earth for either electrical generation or space conditioning purposes; and

(c) Skylight, which is a device which is installed to replace small portions of a roof for the purpose of supplying a portion of the lighting requirements of a building;

(d) Solar electric dispersed photovoltaic system, which is a system which involves the use of small arrays of cells which convert solar radiation into electric power for on-site use;

(e) Solar powered pump, which is a system which captures energy radiated by the sun, and uses this energy to power a pump;

(f) Solar process heating system, which is a system which captures energy radiated by the sun for use in industrial or agricultural processes;

(g) Solar space heating or cooling system, which is a system which captures energy radiated by the sun, and uses it for space conditioning purposes;

(h) Solar water heater, which is a system which captures energy radiated by the sun, and uses it to heat water;

(i) Urban waste-fired boiler, which is a system which is partially or entirely fueled by refuse or a refuse derived fuel;

(j) Urban waste pyrolysis system, which is a system which uses urban wastes as a fuel and processes the wastes into a liquid or gaseous fuel;

(k) Water powered generator which is a system which captures and stores the energy contained in moving water and transforms this energy into electricity;

(1) Wind powered generator, which is a system which captures and stores the energy transmitted by the wind and transforms this energy into electric power;

(m) Wind powered water pump, which is a system which captures the energy transmitted by the wind and uses this energy to extract water from a reservoir;

(n) Wood-fired boiler, which is a system which is partially or completely fueled by wood or wood residues;

(0) Wood-fired stove, which is a stove fueled by wood and which is installed primarily for space conditioning purposes.

(Part B of Title IV of the Energy Conservation and Production Act, Pub. L. 94-385, 90 Stat. 1125 et seq; also issued under Part C, Title III of the Energy Policy and Conservation Act, Pub. L. 94-163, 89 Stat. 871 et seq. (42 U.S.C. 6321 et seq.); Federal Energy Administration Act of 1974, as amended Pub. L. 93-275 (15 U.S.C. 761 et seq.); Department of Energy Organization Act, Pub. L. 95-91, 91 Stat. 565 et seq. (42 U.S.C. 7101 et seq.); EO 11790, 39 FR 23185)

[42 FR 37800, July 25, 1977, as amended at 42 FR 61993, Dec. 8, 1977]

§ 450.34 Requirements for renewable-resource energy measures.

(a) Except as provided in paragraph (b) of this section, a renewable-resource energy measure listed in § 450.33 must be evaluated by a verification audit in accordance with the procedures in Subpart C of this part to determine whether cost savings in a specific application are sufficient to recover the costs of purchase and installation within the attributed life of the energy measure.

(b) A solar water heater shall not be required to be evaluated by a verification audit if it is a system which—

(1) Is installed in a residential building; and

(2) Replaces an electric resistance water heater; and

(3) Is purchased, installed, and maintained at a total cost which shall not exceed the maximum allowable cost which shall be computed by

(i) Selecting the correct system life factor in the Federal Region in which the system will be installed for the attributed life of the solar heater specified by the manufacturer in the following table

the

system life

(ii) Multiplying factor by the current year's electricity rate for water heating in effect for the user of the system to be installed expressed in cents per kilowatt hour; and

(iii) Multiplying the product by the percent of the total hot water demand the system will supply.

(Part B of Title IV of the Energy Conservation and Production Act, Pub. L. 94-385, 90 Stat. 1125 et seq; also issued under Part C, Title III of the Energy Policy and Conservation Act, Pub. L. 94-163, 89 Stat. 871 et seq. (42 U.S.C. 6321 et seq.); Federal Energy Administration Act of 1974, as amended, Pub. L. 93-275 (15 U.S.C. 761 et seq.); Department of Energy Organization Act, Pub. L. 95-91, 91 Stat. 565 et seq. (42 U.S.C. 7101 et seq.); EO 11790, 39 FR 23185)

[42 FR 37800, July 25, 1977, as amended at 42 FR 61993, Dec. 8, 1977]

§ 450.35 Climate zones.

(a) DOE shall determine whether to restrict an energy measure to a climate zone.

(b) DOE shall designate climate zones, consisting of heating zones as shown in Appendix A to Subpart D or cooling zones as shown in Appendix B to Subpart D.

Subpart E-Preliminary Energy Audits and Energy Audits

AUTHORITY: Title III of the National Energy Conservation Policy Act, Pub. L. 95619, 92 Stat. 3206 et seq., which establishes Parts G and H of Title III of the Energy Policy and Conservation Act, Pub. L. 94-163, 42 U.S.C. 6321 et seq.; Sec. 365(e)(2), 42 U.S.C. 5325(e)(2), of the Energy Conservation and Production Act, Pub. L. 94-385, 42 U.S.C. 6801 et seq.; Department of Energy Organization Act, Pub. L. 95-91, 42 U.S.C. 7101 et seq.

SOURCE: 44 FR 19351, Apr. 2, 1979, unless otherwise noted.

For purposes of this subpart—

"Building” means any structure, the construction of which was completed on or before April 20, 1977, which includes a heating or cooling system, or both.

"Complex" means a closely situated group of buildings on a contiguous site or a closely situated group of buildings served by a central utility plant, such as a college campus or a multi-building hospital.

"Construction completion" means the date of issuance of an occupancy permit for a building.

“Energy audit” means a survey of a building or complex that is conducted in accordance with the requirements of this subpart which—

(1) Identifies the type, size, energy use level and the major energy using systems;

(2) Determines appropriate energy conservation maintenance and operating procedures; and

(3) Indicates the need, if any, for the acquisition and installation of energy conservation measures, including solar energy and other renewable resource measures.

"Energy conservation maintenance and operating procedure” means modifications in the maintenance and operating procedures of a building, and any installations therein, which are designed to reduce energy consumption in such building and which require no significant expenditure of funds.

"Energy conservation measure" means an installation or modification of an installation in a building which is primarily intended to reduce energy consumption or allow the use of an alternative energy source, including, but not limited to

(1) Insulation of the building structure and systems within the building;

(2) Storm windows and doors, multiglazed windows and doors, heat absorbing or heat reflective glazed and coated windows and door systems, additional glazing, reductions in glass area, and other window and door system modifications;

(3) Automatic energy control systems;

(4) Equipment required to operate variable steam, hydraulic, and ventilating systems adjusted by automatic energy control systems;

(5) Active or passive solar space heating or cooling systems, solar electric generating systems, or any combination thereof;

(6) Active or passive solar water heating systems;

(7) Furnace or utility plant and distribution system modifications including

(A) Replacement burners, furnaces, boilers, or any combination thereof, which substantially increase the energy efficiency of the heating system;

(B) Devices for modifying flue openings which will increase the energy efficiency of the heating system;

(C) Electrical or mechanical furnace ignition systems which replace standing gas pilot lights; and

(D) Utility plant system conversion measures including conversion of existing oil- and gas-fired boiler installa

tions to alternative energy sources, including coal;

(8) Caulking and weatherstripping; (9) Replacement or modification of lighting fixtures to increase the energy efficiency of the lighting system without increasing the overall illumination of a building, unless such increase in illumination is necessary to conform to any applicable State or local building code or, if no such code applies, the increase is considered appropriate by the Secretary;

(10) Energy recovery systems;

(11) Cogeneration systems which produce steam or forms of energy such as heat, as well as electricity for use primarily within a building or a complex of buildings owned by a school or hospital and which meet such fuel efficiency requirements as the Secretary may by rule prescribe;

(12) Such other measures as the Secretary identifies by rule for purposes of this part, as set forth in Subpart D of this part; and

(13) Such other measures as a grant application shows will save a substantial amount of energy and as are identified in an energy audit in accordance with Subpart C of this part.

"Fuel" means any commercial source of energy used within the building or complex being surveyed such as natural gas, fuel oil, electricity or coal.

"Gross square feet" means the sum of all heated or cooled floor areas enclosed in a building, calculated from the outside dimensions, or from the centerline of common walls.

"Heating or cooling system" means any mechanical system for heating or cooling areas of a building. For purposes of this subpart, any mechanical system for distributing air throughout the building is considered a cooling system.

"Hospital" means a public or nonprofit institution which is a general hospital, tuberculosis hospital, or any other type of hospital, other than a hospital furnishing primarily domiciliary care; and is duly authorized to provide hospital services under the laws of the State in which it is situated.

"Hospital facilities" means buildings housing a hospital and related facilities, including laboratories, laundries, outpatient departments, nurses' home

and training facilities and central service facilities operated in connection with a hospital, and also includes buildings housing education or training facilities for health professions personnel operated as an integral part of a hospital.

"Indian tribe" means any tribe, band, nation, or other organized group or community of Indians, including any Alaska native village, or regional or village corporation, as defined in or established pursuant to the Alaska Native Claims Settlement Act, Pub. L. 92-203; 85 Stat. 688, which (a) is recognized as eligible for the special programs and services provided by the United States to Indians because of their status as Indians; or (b) is located on, or in proximity to, a Federal or State reservation or rancheria.

"Local educational agency" means a public board of education or other public authority or a non-profit institution legally constituted within, or otherwise recognized by, a State for either administrative control or direction of, or to perform administrative services for, a group of schools within a State.

"Maintenance" means activities undertaken in a building to assure that equipment and energy-using systems operate effectively and efficiently.

"Operating” means the operation of equipment and energy-using systems in a building to achieve or maintain specified levels of environmental conditions or service.

"Preliminary energy audit” means a determination of the energy consumption characteristics of a building, including the size, type, rate of energy consumption, and major energy-using systems of such building.

"Public care institution" means a public or non-profit institution which

owns

(1) A facility for long-term care, rehabilitation facility, or public health center, as described in Section 1633 of the Public Health Service Act (42 U.S.C. 300s-3; 88 Stat. 2270);

(2) A residential child care center, which is an institution, other than a foster home, operated by a public or non-profit institution and is primarily intended to provide full-time residential care with an average length of