{"product_id":"generac-rg15089knac-150-120kw-480-277v-standby-generator","title":"Generac RG15089KNAC 150\/120kW 480\/277V Standby Generator","description":"\u003ch2\u003eGenerac RG15089KNAC – 150\/120kW Liquid-Cooled Standby Generator\u003c\/h2\u003e\n\n\u003cp\u003eThe Generac RG15089KNAC is a gaseous, liquid-cooled automatic standby generator designed for properly planned high-capacity backup power applications using 480\/277V 3-phase service. This model is rated for 150kW on natural gas and 120kW on vapor propane, giving property owners and commercial facilities fuel flexibility when professionally installed and properly sized. It is powered by a Generac 8.9L 8-cylinder turbocharged and aftercooled engine with Electronic Fuel Ignition Control technology. This model is listed with a catalyst-equipped emissions configuration; state, local, and project-specific emissions requirements should be verified before purchase or installation. Power Zone 410 control and remote monitoring support are listed in the supplied product data for system visibility and service planning.\u003c\/p\u003e\n\n\u003ch3\u003e\u003cstrong\u003e150\/120kW Backup Power for 480\/277V 3-Phase Applications\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eThe RG15089KNAC is intended for larger standby power projects where 3-phase electrical service, high output, and fuel planning are required. Final load sizing, voltage requirements, fuel setup, emissions requirements, transfer equipment, permitting, and site conditions should be confirmed by a qualified installer before purchase or installation.\u003c\/p\u003e\n\n\u003ch3\u003e\u003cstrong\u003eNatural Gas and Vapor Propane Fuel Support\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eThis model is rated at 150kW using natural gas and 120kW using vapor propane. Fuel availability, gas pressure, fuel line sizing, installation requirements, and local code compliance should be reviewed as part of the project planning process.\u003c\/p\u003e\n\n\u003ch3\u003e\u003cstrong\u003e8.9L Turbocharged Engine with EFIC Technology\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eThe Generac 8.9L 8-cylinder turbocharged and aftercooled engine uses Electronic Fuel Ignition Control technology for supported gaseous standby generator operation. The 1800RPM operating speed and low-speed exercise cycle should be reviewed with the official documentation and installer during project planning.\u003c\/p\u003e\n\n\u003ch3\u003e\u003cstrong\u003ePower Zone 410 Controller and Monitoring Support\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eThe Power Zone 410 controller is listed in the supplied product data for this model. Remote monitoring features should be confirmed against the official specification sheet, subscription requirements, network requirements, and final configuration before purchase.\u003c\/p\u003e\n\n\u003c!-- Responsive Image\/Text Blocks --\u003e\n\u003cdiv style=\"display: flex; flex-wrap: wrap; align-items: center; justify-content: center; padding: 0;\"\u003e\n\u003cdiv style=\"flex: 1 1 300px; max-width: 50%; padding: 0 4px;\" class=\"responsive-half\"\u003e\n\u003cimg decoding=\"async\" loading=\"lazy\" style=\"width: 100%; height: auto;\" class=\"responsive-image\" alt=\"Generac RG15089KNAC 150kW liquid-cooled standby generator for 480 277V 3-phase backup power\" width=\"1000\" height=\"1000\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0761\/5781\/2888\/files\/515Wx515H-RG130-150-1200x1200.webp?v=1778014704\"\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"flex: 1 1 300px; max-width: 50%; padding: 1rem; text-align: center;\" class=\"responsive-half\"\u003e\n\u003cp\u003eThe Generac RG15089KNAC is designed for permanent standby generator applications where high-capacity backup power, 3-phase voltage, and professional installation planning are required. Its 150\/120kW output profile should be matched to the property’s electrical service, fuel setup, and backup load requirements.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003c!-- Image Block 2 --\u003e\n\u003cdiv style=\"display: flex; flex-wrap: wrap; align-items: center; justify-content: center; padding: 0;\" class=\"image-block-2\"\u003e\n\u003cdiv style=\"flex: 1 1 300px; max-width: 50%; padding: 1rem; text-align: center;\" class=\"responsive-half\"\u003e\n\u003cp\u003eWith natural gas and vapor propane fuel support, Power Zone 410 control, and listed monitoring support, this generator is intended for professionally planned standby power systems. Verify emissions compliance, transfer equipment, fuel setup, and electrical configuration before ordering.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"flex: 1 1 300px; max-width: 50%; padding: 0 4px;\" class=\"responsive-half\"\u003e\n\u003cimg decoding=\"async\" loading=\"lazy\" style=\"width: 100%; height: auto;\" class=\"responsive-image\" alt=\"Generac RG15089KNAC 480 277V 3-phase natural gas and vapor propane standby generator\" width=\"1000\" height=\"1000\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0761\/5781\/2888\/files\/515Wx515H-RG130-150-1200x1200.webp?v=1778014704\"\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003c!-- Mobile Stack Fix --\u003e\n\u003cstyle\u003e\n@media(max-width:768px) {\n  .responsive-half { max-width: 100% !important; flex: 1 1 100% !important; }\n  .responsive-image { width: 100% !important; height: auto !important; }\n  .image-block-2 { flex-direction: column-reverse !important; }\n}\n\u003c\/style\u003e\n\n\u003ch3\u003eGenerac RG15089KNAC Features \u0026amp; Benefits\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e150kW natural gas output:\u003c\/strong\u003e Provides a clear standby rating for properly sized 480\/277V 3-phase backup applications.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e120kW vapor propane output:\u003c\/strong\u003e Gives buyers a separate vapor propane output rating for fuel planning and system comparison.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e8.9L turbocharged engine:\u003c\/strong\u003e Uses a Generac 8-cylinder turbocharged and aftercooled engine platform for supported liquid-cooled standby applications.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eElectronic Fuel Ignition Control:\u003c\/strong\u003e Supports gaseous fuel operation across the listed natural gas and vapor propane configuration.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePower Zone 410 controller:\u003c\/strong\u003e Provides listed generator control capability for standby power management.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMonitoring support:\u003c\/strong\u003e Remote monitoring features should be verified against the official specification sheet and final system configuration.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCatalyst-equipped configuration:\u003c\/strong\u003e Emissions compliance should be verified against official Generac documentation and applicable state or local requirements before purchase.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cdiv style=\"background: #EFE9DC; border: 1px solid #D6D0C4; border-radius: 8px; padding: 24px; text-align: center; margin: 2rem 0; color: #1f1f1f;\"\u003e\n\u003cp style=\"margin: 0 0 8px 0;\"\u003e\u003cstrong\u003eNeed help choosing the right backup generator for your property?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"margin: 0 0 14px 0;\"\u003eContact TrueStead Supply for generator sizing guidance, installation planning support, and quote assistance.\u003c\/p\u003e\n\u003cp style=\"margin: 0 0 14px 0;\"\u003e✔ Backup power guidance    ✔ Generator sizing support    ✔ Property-ready power options\u003c\/p\u003e\n\u003ca href=\"https:\/\/truesteadsupply.com\/pages\/contact-us\" style=\"display: inline-block; padding: 0.75rem 1.5rem; background-color: #2f4f2f; color: #ffffff; text-decoration: none; font-weight: bold; border-radius: 6px;\"\u003eContact Us for a Quote\u003c\/a\u003e\n\u003c\/div\u003e\n\n\u003ch3\u003eGenerac RG15089KNAC Specifications\u003c\/h3\u003e\n\u003ctable style=\"width: 100%; border-collapse: collapse; margin-bottom: 2rem; border: 1px solid #D6D0C4;\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"border: 1px solid #D6D0C4; padding: 8px;\"\u003e\u003cstrong\u003eBrand\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #D6D0C4; padding: 8px;\"\u003eGenerac\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border: 1px solid #D6D0C4; padding: 8px;\"\u003e\u003cstrong\u003eSeries\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #D6D0C4; padding: 8px;\"\u003eLiquid Cooled RG Series\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border: 1px solid #D6D0C4; padding: 8px;\"\u003e\u003cstrong\u003eModel \/ SKU\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #D6D0C4; padding: 8px;\"\u003eRG15089KNAC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border: 1px solid #D6D0C4; padding: 8px;\"\u003e\u003cstrong\u003eProduct Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #D6D0C4; padding: 8px;\"\u003eLiquid-cooled automatic standby generator\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border: 1px solid #D6D0C4; padding: 8px;\"\u003e\u003cstrong\u003eGenerator Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #D6D0C4; padding: 8px;\"\u003eGaseous standby generator\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border: 1px solid #D6D0C4; padding: 8px;\"\u003e\u003cstrong\u003eRated Power Output\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #D6D0C4; padding: 8px;\"\u003e150kW natural gas \/ 120kW vapor propane\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border: 1px solid #D6D0C4; padding: 8px;\"\u003e\u003cstrong\u003eNatural Gas Output\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #D6D0C4; padding: 8px;\"\u003e150kW\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border: 1px solid #D6D0C4; padding: 8px;\"\u003e\u003cstrong\u003eVapor Propane Output\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #D6D0C4; padding: 8px;\"\u003e120kW\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border: 1px solid #D6D0C4; padding: 8px;\"\u003e\u003cstrong\u003eFuel Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #D6D0C4; padding: 8px;\"\u003eNatural gas \/ vapor propane\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border: 1px solid #D6D0C4; padding: 8px;\"\u003e\u003cstrong\u003eVoltage\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #D6D0C4; padding: 8px;\"\u003e480\/277V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border: 1px solid #D6D0C4; padding: 8px;\"\u003e\u003cstrong\u003ePhase\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #D6D0C4; padding: 8px;\"\u003e3-phase\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border: 1px solid #D6D0C4; padding: 8px;\"\u003e\u003cstrong\u003eEngine\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #D6D0C4; padding: 8px;\"\u003eGenerac 8.9L 8-cylinder turbocharged and aftercooled engine\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border: 1px solid #D6D0C4; padding: 8px;\"\u003e\u003cstrong\u003eEngine Technology\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #D6D0C4; padding: 8px;\"\u003eElectronic Fuel Ignition Control\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border: 1px solid #D6D0C4; padding: 8px;\"\u003e\u003cstrong\u003eOperating Speed\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #D6D0C4; padding: 8px;\"\u003e1800RPM\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border: 1px solid #D6D0C4; padding: 8px;\"\u003e\u003cstrong\u003eController\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #D6D0C4; padding: 8px;\"\u003ePower Zone 410 Controller\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border: 1px solid #D6D0C4; padding: 8px;\"\u003e\u003cstrong\u003eMonitoring\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #D6D0C4; padding: 8px;\"\u003eListed remote monitoring support; confirm final configuration and requirements before purchase\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border: 1px solid #D6D0C4; padding: 8px;\"\u003e\u003cstrong\u003eEmissions Configuration\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #D6D0C4; padding: 8px;\"\u003eCatalyst-equipped configuration; verify state and local emissions compliance before purchase or installation\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch4\u003eGenerac RG15089KNAC Info\u003c\/h4\u003e\n\u003cp\u003e\u003ca rel=\"noopener\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0761\/5781\/2888\/files\/rg100-130-150_spec_sheet.pdf?v=1778014848\" target=\"_blank\"\u003eGenerac RG15089KNAC Specification Sheet\u003c\/a\u003e\u003c\/p\u003e","brand":"Generac","offers":[{"title":"Natural gas","offer_id":48966354174104,"sku":"RG15089KNAC-NG","price":46289.0,"currency_code":"USD","in_stock":true},{"title":"Propane","offer_id":48966354206872,"sku":"RG15089KNAC-LP","price":46289.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0761\/5781\/2888\/files\/515Wx515H-RG130-150-1200x1200.webp?v=1778014704","url":"https:\/\/www.truesteadsupply.com\/products\/generac-rg15089knac-150-120kw-480-277v-standby-generator","provider":"TrueStead Supply","version":"1.0","type":"link"}