Sol-Ark 18K Hybrid Inverter + MidNite Power MNPowerflo16 16.1kWh Battery Kit
MPN No: Sol-Ark 18K-2P
Expected ship date Sep 11 - 18
In Stock
12,398.00
-19%
$9,999.00
Sale
Sol-Ark 18K Hybrid Inverter + MidNite Power MNPowerflo16 16.1kWh Battery Kit
Sol-Ark 18K Hybrid Inverter + MidNite Power MNPowerflo16 16.1kWh Battery Kit
Regular price
$12,398.00
-19%
$9,999
19% OFF
New
LESS THAN 50
Sale
Sol-Ark 18K Hybrid Inverter + MidNite Power MNPowerflo16 16.1kWh Battery Kit
Sol-Ark 18K Hybrid Inverter + MidNite Power MNPowerflo16 16.1kWh Battery Kit
Available
MPN No: Sol-Ark 18K-2P
Regular price
$12,398.00
-19%
$9,999
Expected ship date Sep 11 - 18
Ships from U.S. Warehouse
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We offer multiple secure payment options for your convenience
We offer multiple secure payment options for your convenience
Regular price
$12,398.00
-19%
$9,999
Sol-Ark 18K Hybrid Inverter + MidNite Power MNPowerflo16 16.1kWh Battery Kit
MPN No:
Sol-Ark 18K-2P
Expected ship date Sep 11 - 18
Sale
Sol-Ark 18K Hybrid Inverter + MidNite Power MNPowerflo16 16.1kWh Battery Kit
High-Power Hybrid Inverter With Long-Life LFP Battery Storage
Build a dependable home energy system with the Sol-Ark 18K hybrid inverter and MidNite Power MNPowerflo16 lithium iron phosphate battery. This kit combines an 18kW hybrid inverter with 16.076kWh of nominal battery storage for backup power, solar self-consumption, time-of-use management and appropriately designed off-grid applications.
The Sol-Ark 18K can manage power from solar panels, the utility grid, a generator and battery storage. The MNPowerflo16 adds 314Ah of outdoor-rated LFP storage with integrated heating, active cell balancing and CAN/RS485 communication. Additional MNPowerflo16 batteries can be added as energy needs grow.
What’s Included
- (1) Sol-Ark 18K Hybrid Inverter
- (1) MidNite Power MNPowerflo16 16.076kWh LFP Battery
Included With the MNPowerflo16 Battery
- (2) Wall-Mounting Brackets
- (8) Concrete Expansion Bolts
- (4) RJ45 Connectors
- (2) Communication Network Cables
- (1) Mounting Template
- (2) 2/0 AWG Crimp Terminals
- (1) Grounding Cable
- (1) Ground-Connection Fixing Screw
- (2) DC Terminal Fixing Screws
- (4) Wall-Bracket Fixing Screws
Please note: Battery-to-inverter power cables are not included. Solar panels, racking, AC and PV wiring, conduit, external overcurrent protection, disconnects and other site-specific materials are sold separately unless specifically stated. Final cable size, protection and connection requirements must be determined by the installer.
Important Battery-Output Note
The Sol-Ark 18K inverter can provide up to 18kW of continuous AC output when adequate energy is available. One MNPowerflo16 battery is rated for 160A nominal discharge, equal to approximately 8.2kW at 51.2V, with a 210A maximum discharge rating. Battery-only output is therefore limited by the battery BMS and system settings. Additional batteries may be required to support higher sustained backup loads or the inverter’s full output while operating from battery power.
Why Choose This Sol-Ark and MidNite Power Kit?
- 16.076kWh nominal battery capacity: Store solar or grid energy for outages, nighttime use and time-of-use management.
- 18kW hybrid inverter: Provides substantial AC capacity when supported by sufficient battery, solar, grid or generator power.
- Long-life LFP chemistry: The MNPowerflo16 uses A+ grade lithium iron phosphate cells and is rated for 8,000 cycles under the manufacturer’s stated test conditions.
- Outdoor-ready equipment: Both components carry IP65 enclosure ratings, with the Sol-Ark also rated NEMA 3R.
- Cold-weather support: Internal battery heating pads activate in low ambient temperatures to support charging.
- Active cell balancing: The battery uses 2A active balancing to improve cell consistency and state-of-charge reporting.
- Generator integration: The Sol-Ark includes a dedicated generator connection with generator-start capabilities.
- Expandable battery storage: The MNPowerflo16 platform supports as many as 16 batteries in parallel, subject to final system design.
Best Uses
-
Home Backup Power
Maintain selected household loads during utility outages with properly designed load management. -
Solar Self-Consumption
Store excess daytime solar production for use at night or during higher-rate periods. -
Time-of-Use Management
Charge during lower-cost periods and use stored energy when utility rates are higher, where permitted. -
Generator-Supported Backup
Integrate a compatible generator for longer outages and low-solar conditions. -
Expandable Energy Storage
Begin with 16.076kWh and add compatible MNPowerflo16 batteries as backup and runtime requirements grow.
A 16.076kWh battery can support modest household loads for longer periods or larger loads for shorter periods. Actual runtime depends on connected loads, battery state of charge, reserve settings, temperature, inverter losses and system programming.
Product Specifications
| Specification | Details |
|---|---|
| Kit Configuration | Sol-Ark 18K hybrid inverter + one MidNite Power MNPowerflo16 battery |
| System Type | Hybrid solar and battery energy-storage system |
| Nominal Battery Energy | 16,076Wh / 16.076kWh |
| Nominal Battery Voltage | 51.2V |
| Battery Capacity | 314Ah |
| Battery Chemistry | Lithium iron phosphate, LiFePO4/LFP |
| Battery Operating Voltage | 46.4-57.6V |
| Nominal Battery Charge Current | 160A |
| Nominal Battery Discharge Current | 160A, approximately 8.2kW at nominal voltage |
| Maximum Battery Discharge Current | 210A, subject to battery BMS and operating conditions |
| Battery Cycle Life | 8,000 cycles at 77°F (25°C), 0.5C charge/discharge |
| Battery Communication | CAN, RS485 and RS232; PYLON protocol support |
| Battery Expansion | Up to 16 MNPowerflo16 batteries in parallel, subject to system design |
| Battery Enclosure Rating | IP65; indoor or outdoor installation |
| Battery Charge Temperature | -4°F to 122°F (-20°C to 50°C); internal heating applies below 32°F |
| Battery Discharge Temperature | -4°F to 122°F (-20°C to 50°C) |
| Battery Dimensions | 31.50 × 19.69 × 8.94 in |
| Battery Weight | 284 lb |
| Battery Mounting | Upright wall or floor mounting; follow manufacturer requirements |
| Inverter Continuous AC Output | 18,000W when supported by adequate available energy |
| Inverter Surge Output | Up to 36,000VA for 10 seconds, subject to available energy sources |
| Inverter Battery Charger | Up to 350A; charge current must be limited to the connected battery bank’s requirements |
| Maximum Supported PV Array | 32,400W |
| Maximum Usable PV Power | 28,800W |
| Maximum AC-Coupled Input | 28,800W at 240V |
| Grid Pass-Through | Up to 200A |
| Backup Transfer Time | Approximately 5ms |
| Inverter Enclosure Rating | IP65 / NEMA 3R |
| Inverter Dimensions | Approximately 34 × 19.4 × 12 in |
| Inverter Weight | Approximately 137 lb |
Safety and Certifications
MidNite Power MNPowerflo16
- Integrated battery-management system
- Onboard fire-extinguishing modules
- Integrated low-temperature heating
- UL 1973
- UL 9540A
- UL 9540
Sol-Ark 18K
- UL 1741 3rd Edition SB
- UL 1741 CRD-PCS
- IEEE 1547-2018
- IEEE 2030.5 interoperability
- UL 1699B PV DC arc-fault protection
- CSA C22.2 No. 107
Warranty
- Sol-Ark 18K: 10-year manufacturer warranty
- MidNite Power MNPowerflo16: 15-year manufacturer warranty
Warranty coverage is subject to each manufacturer’s registration, installation, operating and maintenance requirements. Review the current warranty documents before purchase and installation.
Professional Installation Required
This equipment must be designed, installed and commissioned by a qualified solar or electrical professional. The installer must confirm battery communication settings, firmware compatibility, conductor sizing, overcurrent protection, disconnects, grounding, mounting requirements, permitting and compliance with all applicable electrical and building codes.
The Sol-Ark battery charge and discharge settings must be programmed for the MNPowerflo16 battery’s operating limits. Final battery-to-inverter communication and closed-loop operation must be confirmed during commissioning.
Frequently Asked Questions
Are the Sol-Ark 18K and MNPowerflo16 compatible? +
The MNPowerflo16 is designed for compatible 48V LFP inverters and supports CAN, RS485 and the PYLON communication protocol. The Sol-Ark must be commissioned with the correct battery protocol, current limits, firmware and communication cable arrangement. Compatibility and closed-loop communication should be confirmed by the installer before operation.
Can this kit provide whole-home backup? +
The Sol-Ark 18K can support many household loads, but one MNPowerflo16 battery provides approximately 8.2kW at its nominal discharge rating. Large simultaneous loads may require load management, support from solar or a generator, or additional batteries. A professional load analysis is required to determine whether the system can meet a specific home’s backup goals.
Why pair an 18kW inverter with one 16.076kWh battery? +
This configuration provides a high-capacity hybrid inverter with a practical starting amount of battery storage. The inverter can manage larger solar, grid and generator inputs, while the battery bank can be expanded later. One battery will not supply the inverter’s full 18kW output by itself.
How long will the 16.076kWh battery run my home? +
Runtime depends on the connected load. Refrigeration, lighting, internet and selected outlets can operate much longer than central air conditioning, electric water heating, EV charging or other high-demand equipment. Battery reserve settings, temperature and conversion losses also affect usable runtime.
Can I add more MNPowerflo16 batteries later? +
Yes. The MNPowerflo16 supports up to 16 batteries in parallel. Expansion must follow the manufacturer’s requirements for battery age, state of charge, communication, cable lengths, busbars, overcurrent protection and system programming.
Can the system operate without solar panels? +
Yes. The system can be configured to charge from the utility grid and provide backup power during an outage. Available operating modes may depend on local utility requirements and installer programming.
Does the Sol-Ark 18K support a generator? +
Yes. The inverter includes a dedicated generator connection and generator-start capabilities. Generator compatibility, wiring and operating parameters must be verified by the installer.
Can the inverter and battery be installed outdoors? +
Both products carry IP65 enclosure ratings, and the Sol-Ark is also rated NEMA 3R. Installation must still follow the manufacturers’ requirements for mounting, clearances, temperature, direct sunlight, drainage and environmental exposure.
Are solar panels included? +
No. This kit includes the Sol-Ark inverter, one MNPowerflo16 battery and the battery accessories listed above. Solar panels, racking and other balance-of-system equipment are selected separately for the installation.
Are the battery-to-inverter power cables included? +
No. The final cable size and termination method depend on the equipment layout, conductor length, protection method and local electrical requirements. The installer must provide correctly sized battery cables and terminals.
What happens if my backup needs increase? +
Additional MNPowerflo16 batteries can increase stored energy, runtime and available battery-bank output. The Sol-Ark 18K also supports a large solar array. All expansion plans should be reviewed by a qualified system designer.
About Sol-Ark
Sol-Ark develops hybrid inverter and energy-management solutions for residential and light-commercial power systems. Its equipment is designed to integrate solar, battery storage, utility power and compatible generators in one flexible platform.
About MidNite Power
MidNite Power develops battery and energy-storage equipment for residential, commercial and off-grid applications. The MNPowerflo16 combines long-life LFP cells, active balancing, integrated heating and outdoor-rated construction in a scalable 48V battery platform.
Why Buy From US Solar Supplier
US Solar Supplier is an American-founded company based in Kentucky dedicated to offering high-quality solar and energy-storage equipment from trusted manufacturers. We provide competitive pricing, dependable inventory and products backed by manufacturer warranties.
Our experienced team can assist with product selection, compatibility questions, system design and purchasing support.
Need Assistance?
Have questions before you order? Call 1-800-230-7004 to speak with our knowledgeable support team. We’re here to help with product details, compatibility questions and purchasing support.
