Chapter 11 — MULTIFAMILY BUILDINGS—PERFORMANCE
Section 170.1 — PERFORMANCE APPROACH
2025 California Energy Code (Title 24, Part 6) · 2025 edition · ingested 2026-07-07 · California
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A building complies with the performance approach if the energy consumption calculated for the proposed design building is no greater than the energy budget calculated for the standard design building using Commission-certified compliance software as specified by Sections 10-109 and 10-116 and the Alternative Calculation Method Reference Manual. (a) Energy budget. The energy budget is expressed in terms of long-term system cost (LSC) and source energy: 1. Long-term system cost (LSC). The LSC energy budget is determined by applying the mandatory and prescriptive requirements of the standard…