{"id":4663,"date":"2026-09-10T02:00:00","date_gmt":"2026-09-10T02:00:00","guid":{"rendered":"https:\/\/www.26yc.com\/?p=4663"},"modified":"2026-10-08T23:36:10","modified_gmt":"2026-10-09T06:36:10","slug":"building-performance-standards-carbon","status":"publish","type":"post","link":"https:\/\/www.26yc.com\/es\/building-performance-standards-carbon\/","title":{"rendered":"Building Performance Standards Carbon"},"content":{"rendered":"

Building Performance Standards (BPS)<\/strong> are laws that cap a building’s greenhouse-gas emissions and tighten the cap over time, with penalties for exceeding it. The flagship is New York City’s Local Law 97 (LL97) of 2019<\/strong>; this article summarizes how it works and the role of heat recovery in compliance.<\/p>\n

NYC Local Law 97 — Scope and Caps<\/h2>\n

LL97 covers most buildings over 25,000 ft²<\/strong> (or groups on one tax lot over 50,000 ft²). Emissions limits are set per occupancy class in kg CO2<\/sub>e per ft² per year, with a stricter second period:<\/p>\n\n\n\n\n\n\n\n
Occupancy<\/th>\n2024–2029 cap<\/th>\n2030–2034 cap<\/th>\n<\/tr>\n
Business (B)<\/td>\n0.00846<\/td>\n0.00453<\/td>\n<\/tr>\n
Multifamily (R-2)<\/td>\n0.00675<\/td>\n0.00407<\/td>\n<\/tr>\n
Mercantile (M)<\/td>\n0.01181<\/td>\n0.00403<\/td>\n<\/tr>\n
Assembly (A)<\/td>\n0.01079<\/td>\n0.00420<\/td>\n<\/tr>\n
Storage (S)<\/td>\n0.00403<\/td>\n0.00110<\/td>\n<\/tr>\n<\/table>\n

The penalty for exceeding the cap is $268 per metric ton CO2<\/sub>e per year<\/strong>, with no cap on the fine. Citywide goals are 40% below 2005 by 2030 and 80% by 2050.<\/p>\n

Other Jurisdictions<\/h2>\n