{"id":5076,"date":"2026-06-14T16:28:39","date_gmt":"2026-06-14T13:28:39","guid":{"rendered":"https:\/\/aesinn.com\/iec-60364-8-81-2026-enerji-verimliligi\/"},"modified":"2026-07-26T20:43:41","modified_gmt":"2026-07-26T17:43:41","slug":"iec-60364-8-81-2026-enerji-verimliligi","status":"publish","type":"post","link":"https:\/\/aesinn.com\/en\/iec-60364-8-81-2026-enerji-verimliligi\/","title":{"rendered":"IEC 60364-8-81:2026: Energy Efficiency and Efficiency Classes in Electrical Installations"},"content":{"rendered":"<p class=\"wp-block-paragraph\">Energy efficiency in electrical installations directly affects both operating costs and carbon footprint. A new standard addresses this issue at the installation level. <strong>IEC 60364-8-81:2026<\/strong>\u2019(Ed. 1.0, February 2026). This \u201chorizontal\u201d standard provides a framework for evaluating and improving the energy efficiency of low-voltage electrical installations.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">What is IEC 60364-8-81?<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">The full title is &quot;\u201c<strong>Low-voltage electrical installations \u2014 Chapters 8-81: Functional considerations \u2014 Energy efficiency<\/strong>\u201d&quot;is. The standard, the previous one.&quot; <strong>IEC 60364-8-1:2019<\/strong> It replaces the previous edition and includes a technical revision (IEC 60364 series, new numbering 8-1 \u2192 8-81). It systematically addresses energy efficiency from the design of the installation to its operation and maintenance.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Electrical installation efficiency classes<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">The most notable aspect of the standard is its focus on the energy efficiency of an electrical installation. <strong>evaluation method<\/strong> and accordingly <strong>efficiency classes<\/strong> This is a definition (normative Annex B). An efficiency class can be determined for industrial, commercial, and residential installations, clarifying improvement priorities.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Key topics covered by the standard<\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n\n<li>Determining the load energy profile.<\/li>\n\n\n<li><strong>Optimization of transformer and distribution panel layout.<\/strong> (energy moment \/ barycentre methods)<\/li>\n\n\n<li>Reducing losses and voltage drop in cabling.<\/li>\n\n\n<li>Efficiency of local production and storage (solar power, battery)<\/li>\n\n\n<li><strong>Measurement, monitoring and energy management system (EEMS)<\/strong>; demand response<\/li>\n\n\n<li>Multi-resource management: grid, local production and storage.<\/li>\n\n\n<li>Maintaining and sustaining the performance of the system.<\/li>\n\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">AES Innovation approach<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">AES Innovation provides energy efficiency assessment and consulting services for electrical installations through its engineering team. Our related services and content include:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n\n<li><a href=\"https:\/\/aesinn.com\/en\/enerji-danismanligi\/enerji-verimliligi-evd\/\">Energy Efficiency Consulting (EEC)<\/a><\/li>\n\n\n<li><a href=\"https:\/\/aesinn.com\/en\/enerji-danismanligi\/\">Energy Consulting<\/a><\/li>\n\n\n<li><a href=\"https:\/\/aesinn.com\/en\/iec-60364-8-82-2026-prosumer\/\">IEC 60364-8-82:2026 (Prosumer \/ producing-consuming installations)<\/a><\/li>\n\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">Frequently Asked Questions<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">What is IEC 60364-8-81?<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">This is a horizontal IEC standard that defines the framework for evaluating and improving the energy efficiency of low-voltage electrical installations. The current edition is IEC 60364-8-81:2026 (Ed. 1.0, February 2026).<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Are IEC 60364-8-81 and IEC 60364-8-1 the same?<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">This is the current version of the same document. IEC 60364-8-1:2019 has been renumbered and technically revised to IEC 60364-8-81 with the new series numbering (Ed. 1.0, 2026).<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">What is the electrical efficiency class?<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">This is a classification, defined in normative Annex B of the standard, that indicates the energy efficiency level of an electrical installation. Efficiency classes can be determined for industrial, commercial, and residential installations.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Who conducts energy efficiency assessments?<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">At AES Innovation, energy efficiency assessment and consulting for electrical installations are carried out by our engineering team in accordance with relevant standards and methods.<\/p>","protected":false},"excerpt":{"rendered":"<p>Energy efficiency in electrical installations directly affects both operating costs and carbon footprint. Addressing this issue at the installation level\u2026<\/p>","protected":false},"author":1,"featured_media":2568,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"_kad_blocks_custom_css":"","_kad_blocks_head_custom_js":"","_kad_blocks_body_custom_js":"","_kad_blocks_footer_custom_js":"","_kadence_starter_templates_imported_post":false,"_kad_post_transparent":"","_kad_post_title":"","_kad_post_layout":"","_kad_post_sidebar_id":"","_kad_post_content_style":"","_kad_post_vertical_padding":"","_kad_post_feature":"","_kad_post_feature_position":"","_kad_post_header":false,"_kad_post_footer":false,"_kad_post_classname":"","slim_seo":{"title":"IEC 60364-8-81:2026 Energy Efficiency & Efficiency Classes | AES","description":"IEC 60364-8-81:2026 (formerly 60364-8-1): Energy efficiency assessment, efficiency classes, energy management and demand response in low-voltage installations."},"footnotes":""},"categories":[15],"tags":[],"class_list":["post-5076","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-standartlar"],"acf":[],"taxonomy_info":{"category":[{"value":15,"label":"Standartlar"}]},"featured_image_src_large":["https:\/\/aesinn.com\/wp-content\/uploads\/aes-thumbnail.png",768,768,false],"author_info":{"display_name":"Emre Metin","author_link":"https:\/\/aesinn.com\/en\/author\/yonetim\/"},"comment_info":"","category_info":[{"term_id":15,"name":"Standartlar","slug":"standartlar","term_group":0,"term_taxonomy_id":15,"taxonomy":"category","description":"","parent":0,"count":40,"filter":"raw","cat_ID":15,"category_count":40,"category_description":"","cat_name":"Standartlar","category_nicename":"standartlar","category_parent":0}],"tag_info":false,"_links":{"self":[{"href":"https:\/\/aesinn.com\/en\/wp-json\/wp\/v2\/posts\/5076","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/aesinn.com\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/aesinn.com\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/aesinn.com\/en\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/aesinn.com\/en\/wp-json\/wp\/v2\/comments?post=5076"}],"version-history":[{"count":1,"href":"https:\/\/aesinn.com\/en\/wp-json\/wp\/v2\/posts\/5076\/revisions"}],"predecessor-version":[{"id":5917,"href":"https:\/\/aesinn.com\/en\/wp-json\/wp\/v2\/posts\/5076\/revisions\/5917"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/aesinn.com\/en\/wp-json\/wp\/v2\/media\/2568"}],"wp:attachment":[{"href":"https:\/\/aesinn.com\/en\/wp-json\/wp\/v2\/media?parent=5076"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/aesinn.com\/en\/wp-json\/wp\/v2\/categories?post=5076"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/aesinn.com\/en\/wp-json\/wp\/v2\/tags?post=5076"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}