{"product_id":"generac-rg10089gnac-100kw-208-120v-standby-generator","title":"Generac RG10089GNAC 100kW 208\/120V Standby Generator","description":"\u003ch2\u003eGenerac RG10089GNAC – 100kW 208\/120V Standby Generator\u003c\/h2\u003e\n\u003cp\u003eThe Generac RG10089GNAC is a gaseous, liquid-cooled automatic standby generator designed for backup power applications using 208\/120V 3-phase service. This model is rated for 100kW on natural gas and 100kW on vapor propane, giving property owners, facilities, and commercial sites clear output ratings for backup power planning. It is powered by a Generac 8.9L 8-cylinder naturally aspirated engine with Electronic Fuel Ignition Control technology. The generator includes a catalyst-equipped emissions configuration noted as CA and MA emissions compliant in the supplied product data. With Power Zone 410 control and standard cellular connectivity with Wi-Fi backup for Mobile Link and Fleet monitoring, this model supports practical system visibility and standby readiness.\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003e100kW Backup Power for 208\/120V 3-Phase Applications\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eThe RG10089GNAC is built for standby power needs where 208\/120V 3-phase service, 100kW output, and fuel flexibility are part of the project requirements. Final load sizing and site requirements should be reviewed by a qualified installer before purchase or installation.\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eNatural Gas and Vapor Propane Fuel Flexibility\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eThis model supports controller-selected fuel type operation and is rated at 100kW using natural gas or 100kW using vapor propane. These matching output ratings help buyers compare fuel options clearly when planning a standby generator system.\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003e8.9L Naturally Aspirated Engine with EFIC Technology\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eThe Generac 8.9L 8-cylinder naturally aspirated engine uses Electronic Fuel Ignition Control technology to support controlled gaseous fuel operation. Its 1800RPM operating speed and low-speed exercise cycle support routine readiness checks for standby applications.\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003ePower Zone 410 Controller and Remote Monitoring Support\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eThe Power Zone 410 controller is listed as NFPA 110 System Control capable, giving the generator a capable control platform for backup power management. Standard cellular connectivity with Wi-Fi backup for Mobile Link and Fleet helps support remote status visibility and service awareness.\u003c\/p\u003e\n\u003c!-- Responsive Image\/Text Block --\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\u003cimg decoding=\"async\" loading=\"lazy\" style=\"width: 100%; height: auto;\" class=\"responsive-image\" alt=\"Generac RG10089GNAC 100kW liquid-cooled standby generator for 208 120V 3-phase backup power\" width=\"1000\" height=\"1000\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0761\/5781\/2888\/files\/515Wx515H-RG100-1200x1200.webp?v=1778017563\"\u003e\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 RG10089GNAC is designed for permanent standby generator applications where 100kW output, 208\/120V 3-phase service, and professional installation planning are required. Its 100kW natural gas and vapor propane ratings support backup power projects when properly sized for the property or facility.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\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}\n\u003c\/style\u003e\n\u003ch3\u003eGenerac RG10089GNAC Features \u0026amp; Benefits\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e100kW natural gas output:\u003c\/strong\u003e Provides a clear standby rating for properly sized 208\/120V 3-phase backup applications.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e100kW vapor propane output:\u003c\/strong\u003e Gives buyers a matching LP output rating for fuel planning and system comparison.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e8.9L naturally aspirated engine:\u003c\/strong\u003e Uses a Generac 8-cylinder naturally aspirated engine platform for liquid-cooled standby performance.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eElectronic Fuel Ignition Control:\u003c\/strong\u003e Supports controlled 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 generator control capability with NFPA 110 System Control capability noted in the product data.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCellular connectivity with Wi-Fi backup:\u003c\/strong\u003e Supports Mobile Link and Fleet monitoring for easier generator status visibility.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCatalyst-equipped configuration:\u003c\/strong\u003e Listed as CA and MA emissions compliant in the supplied product specifications.\u003c\/li\u003e\n\u003c\/ul\u003e\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\u003ch3\u003eGenerac RG10089GNAC 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;\"\u003eRG10089GNAC\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;\"\u003e100kW natural gas \/ 100kW 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;\"\u003e100kW\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border: 1px solid #D6D0C4; padding: 8px;\"\u003e\u003cstrong\u003eLiquid Propane Output\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #D6D0C4; padding: 8px;\"\u003e100kW vapor propane\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;\"\u003e208\/120V\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 naturally aspirated 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;\"\u003eStandard cellular connectivity with Wi-Fi backup for Mobile Link and Fleet\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; CA and MA emissions compliant\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch4\u003eGenerac RG10089GNAC 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 RG10089GNAC Specification Sheet\u003c\/a\u003e\u003c\/p\u003e","brand":"Generac","offers":[{"title":"Natural gas","offer_id":48966584664216,"sku":"RG10089GNAC-NG","price":36689.0,"currency_code":"USD","in_stock":true},{"title":"Propane","offer_id":48966584696984,"sku":"RG10089GNAC-LP","price":36689.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0761\/5781\/2888\/files\/515Wx515H-RG100-1200x1200.webp?v=1778017563","url":"https:\/\/www.truesteadsupply.com\/products\/generac-rg10089gnac-100kw-208-120v-standby-generator","provider":"TrueStead Supply","version":"1.0","type":"link"}