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Built for the toughest off-grid and backup demands, the 18K 2P-N inverter delivers class-leading continuous battery power to run heavy electrical loads with ease. With 36 kW of surge capacity for up to 10 seconds, it starts HVAC systems and high-torque motors effortlessly during outages. Supporting over 40 kW of PV input through AC-coupled functionality, it outperforms any other residential inverter in its class. This powerhouse operates on U.S.-engineered firmware, secures your data locally, and includes a standard 10-year warranty.
Take control of your energy - don’t depend on the grid.
High Continuous Output: Delivers up to 18kW of continuous power directly from battery storage.
Massive Surge Capability: Provides 36kVA of surge power for 10 seconds, ensuring HVAC units, compressors, and motors start smoothly during outages.
Unmatched PV Input Capacity: Supports over 40kW of solar input when using AC-coupled functionality - more than any other residential inverter.
Hybrid Flexibility: Designed for off-grid, on-grid, and backup power applications with seamless transition.
Resilient Design: Engineered to handle the most demanding off-grid and backup conditions for homes and businesses.
U.S.-Engineered Firmware: Developed with American technology for superior reliability and optimized performance.
Secure Data Handling: Keeps all operational data stored domestically for enhanced privacy and compliance.
Long-Term Assurance: Backed by a 10-year standard warranty for lasting peace of mind.
Energy Independence: Enables full control of your home’s energy production, storage, and backup capability.
| Max. Usable PV Power | 28,800 W |
| Max. AC Coupled Input | 19,200 W |
| Rated MPPT Operating Voltage Range | 150 - 425 V |
| Startup Voltage | 125 V |
| Max. DC Input Voltage | 500 V |
| Max. Operating Input Current per MPPT | 36 A |
| Max. Short Circuit Current per MPPT | 54 A |
| No. of MPPT Trackers | 3 |
| No. of PV Strings per MPPT | 2 |
| Continuous Power | 18,000 W |
| Surge Power (10 s) | 36,000 W |
| Nominal AC Voltage |
120/240 V; 208 V ± 8 % Un
|
| Grid Frequency | 60 / 55-65 Hz |
| Output Current (Continuous) | 75 A |
| Max. Grid Passthrough Current | 200 A |
| Max Efficiency | 97.6 % |
| Stackable |
Yes - up to 12 units
|
| Nominal DC Voltage | 48 V |
| Operating Voltage Range | 40 - 60 V |
| Capacity | 50 - 9900 Ah |
| Continuous Battery Current | 350 A |
| Battery Disconnecting Means | 200 A / pole × 2 |
| Charging Controller |
3-Stage with Equalization
|
| Automatic Generator Start (AGS) |
2-Wire Start - Integrated
|
| BMS Communication |
CANBus & RS485 MODBUS
|
| Dimensions (H × W × D) |
863 × 464 × 282 mm
|
| Weight | 62.4 kg / 137 lb |
| Enclosure | IP65 / NEMA 3R |
| Ambient Temperature |
–40 °C to +60 °C; > 45 °C Derating
|
| Operating Altitude | 3000 m (9843 ft) |
| Noise | < 50 dB |
| Communication & Monitoring |
Wi-Fi & LAN Hardware Included
|
| Standard Warranty | 10 Years |
| Certifications and Listings |
UL1741 3rd SB, UL1741 CRD-PCS, IEEE1547-2018 and interoperability using IEEE2030.5, Hawaiian Electric SRD V2.0, UL1699B PVDC AFCI, UL1998, CSA C22.2 No. 107
|
As electricity prices climb, grid reliability declines, and demand for energy independence grows, homeowners are redefining what they expect from solar power systems.
Leading this evolution is the Sol-Ark® 18K-2P (18K-2P-N) hybrid inverter - a next-generation solution built for resilience, performance, and total control.
Engineered for the toughest off-grid and backup conditions, the 18K-2P delivers up to 18kW of continuous power from battery storage, easily handling large household loads. With 36kVA of surge capacity for up to 10 seconds, it starts heavy equipment like HVAC systems and motors effortlessly - even in full grid-outage scenarios.
Supporting more than 40kW of PV input when AC-coupled, the 18K-2P outperforms every other residential inverter on the market. Powered by American-engineered firmware, designed with secure U.S.-based data handling, and backed by a 10-year standard warranty, this powerhouse gives homeowners the confidence to break free from grid dependence and own their energy future.
Upon completing your order, you will promptly receive an email confirming the order placement, indicating that we have received your order and pre-authorized your credit card for the purchase. Our next step is to contact our suppliers to confirm the item's availability and readiness for shipment. Should the item be on backorder or unavailable, we will notify you of the estimated lead time. If the provided lead time is unsatisfactory, we will cancel the pre-authorization and contact you via email or phone. If the item can be shipped within 5 business days, we will proceed with processing the charges and shipping your order.
In the event of incorrect shipping information provided at checkout, we will make every effort to track down the item using our shipping partners. Please be aware that refunds and returns are not available in such cases. However, we will do our utmost to locate the item. If successful, re-shipping fees of up to 20% of the item's value may apply.
If your order is in stock and we have successfully processed your credit card charges, the items will be shipped within five business days from the order date. You will receive tracking information via email within 24 hours of your order leaving the distribution center. Should tracking information not be received within six days of your order, please contact us at +1 (307) 317-7213. The cut off time is 4 pm EST.
We offer free shipping on all orders and applicable items and brands within the mainland of the US (Hawaii, Alaska, and Overseas Territories are exclusions).
Eco Solar Kits does not ship orders directly to Hawaii, Alaska, or Overseas Territories. Clients needing delivery to these locations must arrange a freight forwarder and enter the forwarder’s address as the shipping address. Eco Solar Kits will then ship the order to the designated freight forwarder under our standard shipping terms.
Typically, orders are processed immediately upon receipt, taking approximately 1-4 business days after order confirmation, payment, and pick-up time to fulfill.
The delivery time via freight carrier may vary between 4-6 business days, depending on your location.
To prevent delays, frustration, and additional costs, kindly inform us of any concerns regarding the delivery to your location. It's important to note that the following situations may incur additional costs:
You can reach us using the contact methods provided below:
At D&D Eco Power Goods LLC, we strive to ensure our customers are completely satisfied with their purchases. Our return and refund policies are designed to provide a fair and transparent process based on the delivery date of your item.
You have 30 days from the delivery date to initiate a return. To be eligible for a return, the item must meet the following conditions:
Items that do not meet these conditions will not be accepted for return.
To begin the return process, please follow these steps:
We prioritize customer satisfaction and aim to provide a seamless refund experience. This refund policy is based on the delivery date of your item to ensure fairness in the return process.
Refunds will be processed based on the delivery date of the returned product. Once the manufacturer receives and inspects your returned item, we will notify you regarding the approval or rejection of your refund. If approved, the refund will be processed through your original payment method, typically within 10 days. Please note that it may take some time for your bank or credit card company to process and post the refund.
For any questions or concerns regarding our return or refund policy, please do not hesitate to contact us:
