; and (B) is owned by public housing residents. (7) Renewable energy The term renewable energy means— (A) utility-, community-, and small-scale photovoltaic and thermal solar energy; (B) utility- and small-scale wind energy; (C) geothermal energy; (D) microturbine hydroelectricity; (E) energy efficiency; (F) building electrification; (G) energy storage; (H) microgrids; and (I) modern distribution grid infrastructure. (8) Secretary The term Secretary means the Secretary of Housing and Urban Development. (9) Zero-carbon home The term zero-carbon home means a highly energy-efficient home that produces on-site, or procures, enough carbon-free renewable energy to meet the total annual energy consumption of the home. 4. Congressional findings and sense of Congress for improved architectural design in government housing programs Section 4 of the Housing and Urban Development Act of 1968 ( 12 U.S.C. 1701v ) is amended to read as follows: 4. Improved architectural design in government housing programs (a) Findings Congress finds that— (1) if Federal aid is to make its full community-wide contribution toward improving our urban and rural environments, Federal aid must have a greater impact on improvements in architectural design