{"id":4654,"date":"2026-09-08T02:00:00","date_gmt":"2026-09-08T02:00:00","guid":{"rendered":"https:\/\/www.26yc.com\/leed-energy-recovery-credit\/"},"modified":"2026-10-08T23:36:10","modified_gmt":"2026-10-09T06:36:10","slug":"leed-energy-recovery-credit","status":"publish","type":"post","link":"https:\/\/www.26yc.com\/ja\/leed-energy-recovery-credit\/","title":{"rendered":"LEED Energy Recovery Credit"},"content":{"rendered":"<p>Energy recovery contributes to the Energy &amp; Atmosphere (EA) credits that dominate LEED scoring. Whether you register under <strong>LEED v4.1<\/strong> (still open in 2026) or the newer <strong>LEED v5<\/strong> (2025&ndash;2030 cycle), ventilation recovery reduces the modeled energy use that the credit is scored on.<\/p>\n<h2>LEED v4.1 BD+C<\/h2>\n<ul>\n<li>EA Credit: Optimize Energy Performance is worth up to <strong>18 points<\/strong>, scored from the ASHRAE 90.1 energy model (split since 2024 into 9 points energy efficiency + 9 points GHG).<\/li>\n<li>A high-effectiveness recovery core lowers the heating and cooling loads in that model, directly raising the percentage improvement over baseline.<\/li>\n<li>EA Prerequisite: Minimum Energy Performance is the gate &mdash; and 90.1&rsquo;s recovery rule (see <a href=\"https:\/\/www.26yc.com\/ja\/ashrae-90-1-heat-recovery-requirements\/\">ASHRAE 90.1 requirements<\/a>) is part of that baseline.<\/li>\n<\/ul>\n<h2>LEED v5 BD+C (what changed)<\/h2>\n<table>\n<tr>\n<th>Area<\/th>\n<th>v4.1<\/th>\n<th>v5<\/th>\n<\/tr>\n<tr>\n<td>Enhanced Energy Efficiency credit<\/td>\n<td>up to 18 pts<\/td>\n<td>1&ndash;10 pts, prescriptive path on ASHRAE 90.1-2022 &sect;11<\/td>\n<\/tr>\n<tr>\n<td>Electrification credit<\/td>\n<td>none<\/td>\n<td>new (favors heat pumps over combustion)<\/td>\n<\/tr>\n<tr>\n<td>Reduce Peak Thermal Loads<\/td>\n<td>none<\/td>\n<td>new &mdash; ventilation energy recovery is an explicit measure<\/td>\n<\/tr>\n<tr>\n<td>Required standard<\/td>\n<td>90.1-2019\/2022<\/td>\n<td>90.1-2022 required after 1 Jan 2028<\/td>\n<\/tr>\n<\/table>\n<h2>How to Use Recovery for Points<\/h2>\n<ol>\n<li>Model the building with and without the recovery core; the delta is your saving.<\/li>\n<li>For v5, count recovery under both the Enhanced Energy Efficiency prescriptive measures and the new Peak Thermal Loads credit.<\/li>\n<li>Pair recovery with a <a href=\"https:\/\/www.26yc.com\/ja\/heat-pump-selection-calculation\/\">high-efficiency heat pump<\/a> or <a href=\"https:\/\/www.26yc.com\/ja\/high-temperature-heat-pump-heat-recovery\/\">high-temperature heat pump<\/a> to support the Electrification credit and cut on-site combustion.<\/li>\n<\/ol>\n<p>Because v5 rewards decarbonization over cost, an electrically driven recovery-plus-heat-pump strategy scores better than a gas-fired reheat baseline. Document the modeled effectiveness using the <a href=\"https:\/\/www.26yc.com\/ja\/heat-recovery-effectiveness-standards\/\">recognized test standards<\/a>.<\/p>\n<h2>Modeling and Documentation<\/h2>\n<p>The credit is won or lost in the energy model, so the recovery core&#8217;s modeled effectiveness must use the same test basis the rating system expects. In v4.1 the savings show up as a percentage improvement over the ASHRAE 90.1 baseline, where the baseline itself already includes the 90.1 recovery rule, so a project must beat that baseline, not merely meet it. In v5 the credit is split and recovery appears under both Enhanced Energy Efficiency, prescriptive on 90.1-2022 section 11, and the new Reduce Peak Thermal Loads measure, while the Electrification credit rewards pairing recovery with heat pumps over combustion. Document the core&#8217;s measured effectiveness from a recognized standard, the system boundary, and the baseline assumptions; reviewers increasingly ask for the model inputs. Coordinating recovery with an electrically driven heat-pump strategy also strengthens the decarbonization narrative that v5 scores heavily.<\/p>\n<h2>\u3088\u304f\u3042\u308b\u8cea\u554f<\/h2>\n<p><strong>How does energy recovery earn LEED points?<\/strong><br \/>By lowering modeled heating and cooling loads, raising the percentage energy improvement over the ASHRAE 90.1 baseline.<\/p>\n<p><strong>What changed in LEED v5 versus v4.1?<\/strong><br \/>v5 splits the efficiency credit, adds an Electrification credit, and adds a Reduce Peak Thermal Loads credit that explicitly rewards ventilation recovery.<\/p>\n<p><strong>Is meeting the ASHRAE 90.1 recovery rule enough for LEED?<\/strong><br \/>No. The baseline already includes that rule, so the project must beat the baseline, not merely meet the code minimum.<\/p>\n<p><strong>Should recovery be paired with heat pumps for LEED?<\/strong><br \/>Yes. An electrically driven recovery-plus-heat-pump strategy supports the Electrification credit and cuts on-site combustion.<\/p>\n<div class=\"yc-related\">\n<h3>\u95a2\u9023\u8a18\u4e8b<\/h3>\n<ul>\n<li><a href=\"https:\/\/www.26yc.com\/ja\/mine-ventilation-heat-recovery\/\" title=\"\u9271\u5c71\u63db\u6c17\u71b1\u56de\u53ce\uff1a\u30d5\u30a1\u30f3\u8ca0\u8377\u3068\u7d50\u971c\u306e\u4f4e\u6e1b\">\u9271\u5c71\u63db\u6c17\u71b1\u56de\u53ce\uff1a\u30d5\u30a1\u30f3\u8ca0\u8377\u3068\u7d50\u971c\u306e\u4f4e\u6e1b<\/a><\/li>\n<\/ul>\n<\/div>","protected":false},"excerpt":{"rendered":"<p>Energy recovery contributes to the Energy &amp; Atmosphere (EA) credits that dominate LEED scoring. Whether you register under LEED v4.1 (still open in 2026) or the newer LEED v5 (2025&ndash;2030 cycle), ventilation recovery reduces the modeled energy use that the credit is scored on. LEED v4.1 BD+C EA Credit: Optimize Energy Performance is worth up [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[197,241],"tags":[237,182],"class_list":["post-4654","post","type-post","status-publish","format-standard","hentry","category-encyclopedia","category-standards-codes","tag-certification","tag-energy-recovery"],"_links":{"self":[{"href":"https:\/\/www.26yc.com\/ja\/wp-json\/wp\/v2\/posts\/4654","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.26yc.com\/ja\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.26yc.com\/ja\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.26yc.com\/ja\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.26yc.com\/ja\/wp-json\/wp\/v2\/comments?post=4654"}],"version-history":[{"count":2,"href":"https:\/\/www.26yc.com\/ja\/wp-json\/wp\/v2\/posts\/4654\/revisions"}],"predecessor-version":[{"id":5189,"href":"https:\/\/www.26yc.com\/ja\/wp-json\/wp\/v2\/posts\/4654\/revisions\/5189"}],"wp:attachment":[{"href":"https:\/\/www.26yc.com\/ja\/wp-json\/wp\/v2\/media?parent=4654"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.26yc.com\/ja\/wp-json\/wp\/v2\/categories?post=4654"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.26yc.com\/ja\/wp-json\/wp\/v2\/tags?post=4654"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}