42 U.S.C. § 17173 — Daylighting systems and direct solar

Page 8995 TITLE 42—THE PUBLIC HEALTH AND WELFARE § 17191 § 17173. Daylighting systems and direct solar light pipe technology (a) Establishment The Secretary shall establish a program of re- search and development to provide assistance in the demonstration and commercial application of direct solar renewable energy sources to pro- vide alternatives to traditional power genera- tion for lighting and illumination, including light pipe technology, and to promote greater energy conservation and improved efficiency. All direct solar renewable energy devices sup- ported under this program shall have the capa- bility to provide measurable data on the amount of kilowatt-hours saved over the traditionally powered light sources they have replaced. (b) Reporting The Secretary shall transmit to Congress an annual report assessing the measurable data de- rived from each project in the direct solar re- newable energy sources program and the energy savings resulting from its use. (c) Definitions For purposes of this section— (1) the term ‘‘direct solar renewable energy’’ means energy from a device that converts sun- light into useable light within a building, tun- nel, or other enclosed structure, replacing ar- tificial light generated by a light fixture and doing so without the conversion of the sun- light into another form of energy; and (2) the term ‘‘light pipe’’ means a device de- signed to transport visible solar radiation from its collection point to the interior of a building while excluding interior heat gain in the nonheating season. (d) Authorization of appropriations There are authorized to be appropriated to the Secretary for carrying out this section $3,500,000 for each of the fiscal years 2008 through 2012. (Pub. L. 110–140, title VI, § 605, Dec. 19, 2007, 121 Stat. 1676.) Statutory Notes and Related Subsidiaries EFFECTIVE DATE Section effective on the date that is 1 day after Dec. 19, 2007, see section 1601 of Pub. L. 110–140, set out as a note under section 1824 of Title 2, The Congress. §§ 17174, 17175. Repealed. Pub. L. 116–260, div. Z, title III, § 3006(g)(1), Dec. 27, 2020, 134 Stat. 2513 Section 17174, Pub. L. 110–140, title VI, § 606, Dec. 19, 2007, 121 Stat. 1676, related to solar air conditioning re- search and development program. Section 17175, Pub. L. 110–140, title VI, § 607, Dec. 19, 2007, 121 Stat. 1677, related to photovoltaic demonstra- tion program. PART B—GEOTHERMAL ENERGY § 17191. Definitions For purposes of this part: (1) Engineered When referring to enhanced geothermal sys- tems, the term ‘‘engineered’’ means designed to access subsurface heat, including stimula- tion and nonstimulation technologies to ad- dress one or more of the following issues: (A) Lack of effective permeability, poros- ity or open fracture connectivity within the heat reservoir. (B) Insufficient contained geofluid in the heat reservoir. (C) A low average geothermal gradient which necessitates deeper drilling, or the use of alternative heat sources or heat genera- tion processes. (2) Eligible entity The term ‘‘eligible entity’’ means any of the following entities: (A) An institution of higher education. (B) A National laboratory. (C) A Federal research agency. (D) A State research agency. (E) A nonprofit research organization. (F) An industrial entity. (G) A consortium of 2 or more entities de- scribed in subparagraphs (A) through (F). (3) Enhanced geothermal systems The term ‘‘enhanced geothermal systems’’ means geothermal reservoir systems that are engineered, as opposed to occurring naturally. (4) Geofluid The term ‘‘geofluid’’ means any fluid used to extract thermal energy from the Earth which is transported to the surface for direct use or electric power generation, except that such term shall not include oil or natural gas. (5) Geopressured resources The term ‘‘geopressured resources’’ mean geothermal deposits found in sedimentary rocks under higher than normal pressure and saturated with gas or methane. (6) Geothermal The term ‘‘geothermal’’ refers to heat en- ergy stored in the Earth’s crust that can be accessed for direct use or electric power gen- eration. (7) Hydrothermal The term ‘‘hydrothermal’’ refers to natu- rally occurring subsurface reservoirs of hot water or steam. (8) Systems approach The term ‘‘systems approach’’ means an ap- proach to solving problems or designing sys- tems that attempts to optimize the perform- ance of the overall system, rather than a par- ticular component of the system. (Pub. L. 110–140, title VI, § 612, Dec. 19, 2007, 121 Stat. 1679; Pub. L. 116–260, div. Z, title III, § 3002(a), Dec. 27, 2020, 134 Stat. 2487.) Editorial Notes AMENDMENTS 2020—Par. (1). Pub. L. 116–260, § 3002(a), amended par. (1) generally. Prior to amendment, par. (1) defined the term ‘‘engineered’’. Pars. (2) to (8). Pub. L. 116–260, § 3002(a)(2), (3), added par. (2) and redesignated former pars. (2) to (7) as (3) to (8), respectively.