{"product_id":"sol-ark-18kw-hybrid-inverter-all-in-one-solar-inverter-23400w-pv-input-18000w-output-48v-120-240v-split-phase-sol-ark-18k-2p","title":"Sol-Ark | 18K-2P Premium 18kW Hybrid Inverter – 28.8kW PV, 48V, 120\/240V Split Phase | INV040","description":"\u003cp\u003eThe \u003cstrong\u003eSol-Ark Premium 18K-2P\u003c\/strong\u003e is Sol-Ark's most powerful 48V residential hybrid inverter, delivering a full 18,000W continuously from battery storage. It's built for large homes, shops, farms and off-grid properties with demanding loads, with 36kVA of surge to start central HVAC systems and motors during a grid outage.\u003c\/p\u003e\u003cp\u003eLike every Sol-Ark hybrid, it combines the solar inverter, MPPT charge controllers, 48V battery inverter\/charger and automatic transfer switch in one outdoor-rated enclosure. It runs on-grid, off-grid or as backup, and Sol-Ark notes it uses American-engineered firmware with data kept in the U.S.\u003c\/p\u003e\u003ch3\u003eHighlights\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e18,000W continuous output\u003c\/strong\u003e from batteries at 120\/240V (75A)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e36,000W surge for 10 seconds\u003c\/strong\u003e for HVAC, well pumps and motors\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e28,800W of usable solar\u003c\/strong\u003e on 3 full-size 36A MPPTs with 6 DC solar ports, and over 40kW of PV with AC coupling\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e200A grid pass-through\u003c\/strong\u003e for whole-home backup\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e350A battery charger\u003c\/strong\u003e with two 48V battery ports\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003e5ms automatic transfer\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStackable\u003c\/strong\u003e: up to 12 units in parallel\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIP65 \/ NEMA 3R\u003c\/strong\u003e outdoor enclosure rated -40°F to 140°F, 10-year standard warranty\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eBackup Power \u0026amp; Grid Connection\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e200A grid pass-through for whole-home backup installations\u003c\/li\u003e\n\u003cli\u003e120\/240V split phase or 208V, 60Hz (55–65Hz range), 0.88–1.1 Un voltage window\u003c\/li\u003e\n\u003cli\u003eListed to UL 1741 3rd Ed. SB and IEEE 1547-2018 with IEEE 2030.5 interoperability for grid-interactive systems\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eSolar Input\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eUp to 28,800W of usable PV across 3 MPPT trackers, 2 strings per tracker (6 DC solar ports)\u003c\/li\u003e\n\u003cli\u003eMPPT range 150–425V, 125V start-up, 500V max input\u003c\/li\u003e\n\u003cli\u003e36A operating \/ 54A short-circuit current per MPPT\u003c\/li\u003e\n\u003cli\u003eUp to 19,200W of AC-coupled input for more than 40kW of total solar\u003c\/li\u003e\n\u003cli\u003eUL 1699B PV DC arc-fault protection; rapid-shutdown compatible with an external RSD initiator\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eBattery Compatibility\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e48V nominal (40–60V operating range), 50–9,900Ah bank capacity\u003c\/li\u003e\n\u003cli\u003e350A continuous battery current with 2 × 200A battery disconnects\u003c\/li\u003e\n\u003cli\u003eClosed-loop CANBus and RS485 Modbus BMS communication\u003c\/li\u003e\n\u003cli\u003e3-stage charging with equalization; easy to swap in a newer 48V battery later, since batteries typically wear out before the inverter\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eSol-Ark lists Briggs \u0026amp; Stratton Energy Solutions, Discover Energy Systems, Pytes USA and Renon Power as certified battery partners, and offers UL 9540 battery upgrade options.\u003c\/p\u003e\u003ch3\u003eGenerator Integration\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eDedicated generator (GEN) input with integrated 2-wire automatic generator start\u003c\/li\u003e\n\u003cli\u003eSupports a generator or AC-coupled solar input\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eMonitoring \u0026amp; Smart Energy Control\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eWi-Fi and LAN hardware included\u003c\/strong\u003e for remote monitoring through the MySolArk app and installer platform, hosted on US-based servers\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOn-inverter LCD touchscreen\u003c\/strong\u003e for programming without a laptop\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBuilt-in Time-of-Use (TOU) control\u003c\/strong\u003e with multi-season, day-of-week and time-of-day schedules to store solar and avoid peak-rate grid power\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVirtual Power Plant (VPP) ready\u003c\/strong\u003e for utility demand-response programs\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFull Specifications\u003c\/h3\u003e\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\u003cth colspan=\"2\" style=\"text-align:left;\"\u003ePV Input\u003c\/th\u003e\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax usable PV power\u003c\/td\u003e\n\u003ctd\u003e28,800W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMPPT voltage range\u003c\/td\u003e\n\u003ctd\u003e150–425V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eStart-up voltage\u003c\/td\u003e\n\u003ctd\u003e125V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax DC input voltage\u003c\/td\u003e\n\u003ctd\u003e500V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax operating current per MPPT\u003c\/td\u003e\n\u003ctd\u003e36A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax short-circuit current per MPPT\u003c\/td\u003e\n\u003ctd\u003e54A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMPP trackers \/ strings\u003c\/td\u003e\n\u003ctd\u003e3 trackers, 2 strings each\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax AC-coupled input\u003c\/td\u003e\n\u003ctd\u003e19,200W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\u003cth colspan=\"2\" style=\"text-align:left;\"\u003eAC Output\u003c\/th\u003e\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNominal voltage\u003c\/td\u003e\n\u003ctd\u003e120\/240V, 208V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eVoltage range\u003c\/td\u003e\n\u003ctd\u003e0.88–1.1 Un\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFrequency\u003c\/td\u003e\n\u003ctd\u003e60Hz (55–65Hz)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eContinuous power\u003c\/td\u003e\n\u003ctd\u003e18,000W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eContinuous output current\u003c\/td\u003e\n\u003ctd\u003e75A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSurge power\u003c\/td\u003e\n\u003ctd\u003e36,000W for 10s\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax grid pass-through\u003c\/td\u003e\n\u003ctd\u003e200A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBackup transfer time\u003c\/td\u003e\n\u003ctd\u003e5ms\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eParallel\u003c\/td\u003e\n\u003ctd\u003eUp to 12 units\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\u003cth colspan=\"2\" style=\"text-align:left;\"\u003eBattery (DC)\u003c\/th\u003e\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNominal voltage\u003c\/td\u003e\n\u003ctd\u003e48V (40–60V range)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCapacity\u003c\/td\u003e\n\u003ctd\u003e50–9,900Ah\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eContinuous battery current\u003c\/td\u003e\n\u003ctd\u003e350A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBattery disconnect\u003c\/td\u003e\n\u003ctd\u003e200A per pole, ×2\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCharging\u003c\/td\u003e\n\u003ctd\u003e3-stage with equalization\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eGenerator auto-start\u003c\/td\u003e\n\u003ctd\u003e2-wire, integrated\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBMS communication\u003c\/td\u003e\n\u003ctd\u003eCANBus \u0026amp; RS485 Modbus\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\u003cth colspan=\"2\" style=\"text-align:left;\"\u003eEfficiency\u003c\/th\u003e\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax efficiency\u003c\/td\u003e\n\u003ctd\u003e97.6%\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\u003cth colspan=\"2\" style=\"text-align:left;\"\u003eGeneral\u003c\/th\u003e\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions (H×W×D)\u003c\/td\u003e\n\u003ctd\u003e33.98 × 18.27 × 11.10 in (863 × 464 × 282 mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e137 lb (62.4 kg)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEnclosure\u003c\/td\u003e\n\u003ctd\u003eIP65 \/ NEMA 3R\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating temperature\u003c\/td\u003e\n\u003ctd\u003e-40°F to 140°F (-40°C to 60°C), derating above 113°F\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax altitude\u003c\/td\u003e\n\u003ctd\u003e9,843 ft (3,000 m)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNoise\u003c\/td\u003e\n\u003ctd\u003e\u0026lt;50 dB\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCommunication\u003c\/td\u003e\n\u003ctd\u003eWi-Fi \u0026amp; LAN hardware included\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWarranty\u003c\/td\u003e\n\u003ctd\u003e10 years standard\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\u003cth colspan=\"2\" style=\"text-align:left;\"\u003eCertifications\u003c\/th\u003e\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eListings\u003c\/td\u003e\n\u003ctd\u003eUL 1741 3rd Ed. SB, UL 1741 CRD-PCS, IEEE 1547-2018 (IEEE 2030.5 interoperability), Hawaiian Electric SRD V2.0, UL 1699B PV DC AFCI, UL 1998, CSA C22.2 No. 107\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003ch3\u003eDownloads\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0850\/1801\/8067\/files\/sol-ark_18k-Datasheet.pdf?v=1769112632\" target=\"_blank\" rel=\"noopener\"\u003eDatasheet\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0850\/1801\/8067\/files\/18K_Installation_Manual_rev_13_16July2026.pdf?v=1791826916\" target=\"_blank\" rel=\"noopener\"\u003eInstallation Manual\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0850\/1801\/8067\/files\/Battery-Communications-Integration-Guide.pdf?v=1769112632\" target=\"_blank\" rel=\"noopener\"\u003eBattery Communications Integration Guide\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0850\/1801\/8067\/files\/sol-ark-Inverter-Programming-Guide.pdf?v=1769112632\" target=\"_blank\" rel=\"noopener\"\u003eProgramming Guide\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0850\/1801\/8067\/files\/sol-ark_18K-Limited-Warranty.pdf?v=1769112632\" target=\"_blank\" rel=\"noopener\"\u003eLimited Warranty\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0850\/1801\/8067\/files\/Sol-ark-My_SolArk_User_Guide.pdf?v=1769112632\" target=\"_blank\" rel=\"noopener\"\u003eMySolArk User Guide\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Sol-Ark","offers":[{"title":"Default Title","offer_id":53057818067231,"sku":"INV040","price":6515.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0887\/1965\/5199\/files\/Product-Listings-Featured-Products-1.jpg?v=1792184339","url":"https:\/\/offgridselection.com\/products\/sol-ark-18kw-hybrid-inverter-all-in-one-solar-inverter-23400w-pv-input-18000w-output-48v-120-240v-split-phase-sol-ark-18k-2p","provider":"Off Grid Selection","version":"1.0","type":"link"}