Sol-Ark 18kW Hybrid On/Off-Grid Inverter Battery Charger
Sol-Ark 18kW Hybrid On/Off-Grid Inverter Battery Charger
Description
The Sol-Ark 18K-2P hybrid on/off-grid inverter delivers reliable whole-home backup, exceptional efficiency, and unmatched flexibility for both grid-tied and off-grid systems. With 18 kW of continuous output and 36 kW surge capacity, it can easily power demanding appliances like air conditioners, pumps, and heavy equipment. Designed to maximize solar integration, the 18K-2P supports over 40 kW of PV through AC coupling and offers three independent MPPT channels for versatile array configurations. Its 48 V battery compatibility with up to 350 A charge/discharge ensures scalable energy storage for any household need.
Built for resilience, the 18K-2P features 97.6% peak efficiency, ultra-fast 5 ms transfer time, and a 200 A grid pass-through for seamless operation during outages. The rugged NEMA 3R/IP65-rated enclosure withstands harsh climates from –40 °C to +60 °C, while stackability up to 12 units allows system expansion. Certified to UL 1741, IEEE 1547-2018, and AFCI standards, it comes with a standard 10-year warranty for peace of mind. Easy-to-use monitoring through the MySol-Ark platform provides real-time visibility and control, making this inverter a powerful, future-ready solution for energy independence and home resilience.
Product Specifications
Sol-Ark 18kW Hybrid On/Off-Grid Inverter Battery Charger Product Specifications
|
Manufacturer:
|
Sol Ark
|
|
Model:
|
SA-18k, SA-18K-2P-N
|
|
Solar DC Power:
|
SOLAR DC POWER
|
|
Max allowed PV power:
|
32,400 watts
|
|
Max. Usable PV Power:
|
28,800 watts
|
|
Max. AC Coupled Input:
|
19,200 watts
|
|
Max PV power to battery & AC outputs:
|
18,000 watts
|
|
Max DC Voltage:
|
500V@36A
|
|
MPPT Voltage range:
|
150V - 425V
|
|
Starting voltage:
|
125V
|
|
Max. Short Circuit Current per MPPT:
|
54A
|
|
Number of MPPT:
|
3/2
|
|
Solar Strings per MPPT:
|
2 without fuses, or 3 with fuses
|
|
Max DC current per MPPT:
|
36A@500V, 54A@400V (self limiting)
|
|
Max AC Coupled Input:
|
19,200W (Micro/String Inverters)
|
|
AC POWER:
|
AC POWER
|
|
AC Output On-Grid:
|
18,000 watts
|
|
AC Output Off Grid:
|
18,000 watts
|
|
Surge Power (10s):
|
36,000 watts
|
|
Connections:
|
120/240/208V split phase
|
|
Max. Output Current:
|
75A
|
|
Frequency:
|
60/50Hz
|
|
Max efficiency:
|
97.6%
|
|
Stackable:
|
Yes; Max 12
|
|
Response time:
|
5ms Grid-Tied to Off-Grid
|
|
Sell back power modes:
|
Limited to Household or Full Grid-Tied
|
|
Design (DC to AC):
|
Transformer-less DC
|
|
Power Factor:
|
+-0.9 - 1.0
|
|
BATTERY:
|
BATTERY
|
|
Battery Types:
|
Lead Acid or Lithium Li-Ion
|
|
Nominal DC input:
|
48V
|
|
Capacity:
|
50 - 9900Ah
|
|
Voltage range:
|
40 - 60V
|
|
Continuous Battery charging output:
|
350A
|
|
External temperature sensor:
|
Included
|
|
Current shunt:
|
Integrated for accurate % SOC
|
|
External Generator Start:
|
Integrated based on voltage or % SOC
|
|
Li-Ion Communication:
|
CanBus & RS485 MODBUS for Lithium battery
|
|
General:
|
GENERAL
|
|
Display:
|
Color touch
|
|
Weight:
|
137 lbs
|
|
Dimensions:
|
(H x W x D) 34.0 x 18.3 x 11.1 inches, 863 x 464 x 282 mm
|
|
Enclosure:
|
IP65, NEMA type 3R (indoor / outdoor)
|
|
Temperature:
|
-40 to 60C; >45C derating; (3 variable speed fans)
|
|
Warranty:
|
10 years
|
|
Wi-Fi Communication:
|
Included for monitoring or SW updates
|
|
Snap on sensors:
|
Included, for limited selling to household
|
|
PROTECTION:
|
PROTECTION
|
|
Certifications:
|
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
|
|
Grid Sell Back:
|
UL1741-2010/2018, IEEE1547a-2003/2014, FCC 15 class B, UL1741SA, CA Rule 21, HECO Rule 14H
|
|
PV DC Disconnect:
|
Integrated switch NEC 240.15
|
|
Ground Fault Detection:
|
Integrated NEC 690.5
|
|
Surge Protection:
|
DC Type II / AC Type II
|
|
PV rapid shutdown control:
|
Integrated NEC 690.12
|
|
PV Arc Fault detection:
|
Integrated NEC 690.11; UL1699B
|
|
PV input lightning protection:
|
Integrated
|
|
AC input/output breakers:
|
Integrated 200A
|
|
Battery Disconnect:
|
Integrated breaker
|
|
Solar Flare EMP Hardened:
|
OPTIONAL to 2015 MIL-STD 461G (Independently tested June 2018)
|
Product Manuals
Sol-Ark 18kW Hybrid On/Off-Grid Inverter Product Manual
Product Warranty
Limited Warranty: Sol-Ark 12K-2P-N
10-Year Limited Warranty for Sol-Ark LLC Products. Sol-Ark LLC provides a Ten-year (10) limited
Warranty ("Warranty") against defects in materials and workmanship for its Sol-Ark LLC products
("Product"). The term of this warranty begins on the Product(s) initial purchase date, or the date
of receipt of the Product(s) by the end user, whichever is later. This must be indicated on the
invoice, bill of sale from your installer. This warranty applies to the original Sol-Ark LLC Product
purchaser and is transferable only if the Product remains installed in the original use location.
Please call Sol-Ark LLC to let us know if you are selling your Home and give us name and contact
of the new owner.
The warranty does not apply to any Product or Product part that has been modified or damaged by the following:
• Installation or Removal (examples: wrong voltage batteries, connecting batteries backward, damage due to water/rain to
electronics, preventable damage to solar wires.)
• Alteration or Disassembly.
• Normal Wear and Tear.
• Accident or Abuse.
• Unauthorized Firmware updates/software updates or alterations to the software code.
• Corrosion.
• Lightning: unless using EMP hardened system, then Sol-Ark LLC will repair the product.
• Repair or service provided by an unauthorized repair facility.
• Operation or installation contrary to manufacturer product instructions.
• Fire, Floods, or Acts of Nature.
• Shipping or Transportation.
• Incidental or consequential damage caused by other components of the power system.
• Any product whose serial number has been altered, defaced, or removed.
• Any other event not foreseeable by Sol-Ark LLC
Sol-Ark LLC liability for any defective Product, or any Product part, shall be limited to the repair or replacement of the Product, at Sol-Ark
LLC discretion. Sol-Ark LLC does not warrant or guarantee workmanship performed by any person or firm installing its Products. This warranty
does not cover the costs of installation, removal, shipping (except as described below), or reinstallation of Products or parts of Products. LCD
screen and fans are covered for 5 years from date of purchase.
THIS LIMITED WARRANTY IS THE EXCLUSIVE WARRANTY APPLICABLE TO SOL-ARK LLC PRODUCTS. SOL-ARK LLC EXPRESSLY DISCLAIMS
ANY OTHER EXPRESS OR IMPLIED WARRANTIES OF ITS PRODUCTS. SOL-ARK LLC ALSO EXPRESSLY LIMITS ITS LIABILITY IN THE EVENT
OF A PRODUCT DEFECT TO REPAIR OR REPLACEMENT IN ACCORDANCE WITH THE TERMS OF THIS LIMITED WARRANTY AND
EXCLUDES ALL LIABILITY FOR INCIDENTAL OR CONSEQUENTIAL DAMAGES, INCLUDING WITHOUT LIMITATION ANY LIABILITY FOR
PRODUCTS NOT BEING AVAILABLE FOR USE OR LOST REVENUES OR PROFITS, EVEN IF IT IS MADE AWARE OF SUCH POTENTIAL
DAMAGES.
Product FAQs
N/A
Product Information
Product Information
Shipping & Returns
Shipping & Returns
Description
Sol-Ark 18kW Hybrid On/Off-Grid Inverter Battery Charger
Description
The Sol-Ark 18K-2P hybrid on/off-grid inverter delivers reliable whole-home backup, exceptional efficiency, and unmatched flexibility for both grid-tied and off-grid systems. With 18 kW of continuous output and 36 kW surge capacity, it can easily power demanding appliances like air conditioners, pumps, and heavy equipment. Designed to maximize solar integration, the 18K-2P supports over 40 kW of PV through AC coupling and offers three independent MPPT channels for versatile array configurations. Its 48 V battery compatibility with up to 350 A charge/discharge ensures scalable energy storage for any household need.
Built for resilience, the 18K-2P features 97.6% peak efficiency, ultra-fast 5 ms transfer time, and a 200 A grid pass-through for seamless operation during outages. The rugged NEMA 3R/IP65-rated enclosure withstands harsh climates from –40 °C to +60 °C, while stackability up to 12 units allows system expansion. Certified to UL 1741, IEEE 1547-2018, and AFCI standards, it comes with a standard 10-year warranty for peace of mind. Easy-to-use monitoring through the MySol-Ark platform provides real-time visibility and control, making this inverter a powerful, future-ready solution for energy independence and home resilience.
Product Specifications
Sol-Ark 18kW Hybrid On/Off-Grid Inverter Battery Charger Product Specifications
|
Manufacturer:
|
Sol Ark
|
|
Model:
|
SA-18k, SA-18K-2P-N
|
|
Solar DC Power:
|
SOLAR DC POWER
|
|
Max allowed PV power:
|
32,400 watts
|
|
Max. Usable PV Power:
|
28,800 watts
|
|
Max. AC Coupled Input:
|
19,200 watts
|
|
Max PV power to battery & AC outputs:
|
18,000 watts
|
|
Max DC Voltage:
|
500V@36A
|
|
MPPT Voltage range:
|
150V - 425V
|
|
Starting voltage:
|
125V
|
|
Max. Short Circuit Current per MPPT:
|
54A
|
|
Number of MPPT:
|
3/2
|
|
Solar Strings per MPPT:
|
2 without fuses, or 3 with fuses
|
|
Max DC current per MPPT:
|
36A@500V, 54A@400V (self limiting)
|
|
Max AC Coupled Input:
|
19,200W (Micro/String Inverters)
|
|
AC POWER:
|
AC POWER
|
|
AC Output On-Grid:
|
18,000 watts
|
|
AC Output Off Grid:
|
18,000 watts
|
|
Surge Power (10s):
|
36,000 watts
|
|
Connections:
|
120/240/208V split phase
|
|
Max. Output Current:
|
75A
|
|
Frequency:
|
60/50Hz
|
|
Max efficiency:
|
97.6%
|
|
Stackable:
|
Yes; Max 12
|
|
Response time:
|
5ms Grid-Tied to Off-Grid
|
|
Sell back power modes:
|
Limited to Household or Full Grid-Tied
|
|
Design (DC to AC):
|
Transformer-less DC
|
|
Power Factor:
|
+-0.9 - 1.0
|
|
BATTERY:
|
BATTERY
|
|
Battery Types:
|
Lead Acid or Lithium Li-Ion
|
|
Nominal DC input:
|
48V
|
|
Capacity:
|
50 - 9900Ah
|
|
Voltage range:
|
40 - 60V
|
|
Continuous Battery charging output:
|
350A
|
|
External temperature sensor:
|
Included
|
|
Current shunt:
|
Integrated for accurate % SOC
|
|
External Generator Start:
|
Integrated based on voltage or % SOC
|
|
Li-Ion Communication:
|
CanBus & RS485 MODBUS for Lithium battery
|
|
General:
|
GENERAL
|
|
Display:
|
Color touch
|
|
Weight:
|
137 lbs
|
|
Dimensions:
|
(H x W x D) 34.0 x 18.3 x 11.1 inches, 863 x 464 x 282 mm
|
|
Enclosure:
|
IP65, NEMA type 3R (indoor / outdoor)
|
|
Temperature:
|
-40 to 60C; >45C derating; (3 variable speed fans)
|
|
Warranty:
|
10 years
|
|
Wi-Fi Communication:
|
Included for monitoring or SW updates
|
|
Snap on sensors:
|
Included, for limited selling to household
|
|
PROTECTION:
|
PROTECTION
|
|
Certifications:
|
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
|
|
Grid Sell Back:
|
UL1741-2010/2018, IEEE1547a-2003/2014, FCC 15 class B, UL1741SA, CA Rule 21, HECO Rule 14H
|
|
PV DC Disconnect:
|
Integrated switch NEC 240.15
|
|
Ground Fault Detection:
|
Integrated NEC 690.5
|
|
Surge Protection:
|
DC Type II / AC Type II
|
|
PV rapid shutdown control:
|
Integrated NEC 690.12
|
|
PV Arc Fault detection:
|
Integrated NEC 690.11; UL1699B
|
|
PV input lightning protection:
|
Integrated
|
|
AC input/output breakers:
|
Integrated 200A
|
|
Battery Disconnect:
|
Integrated breaker
|
|
Solar Flare EMP Hardened:
|
OPTIONAL to 2015 MIL-STD 461G (Independently tested June 2018)
|
Product Manuals
Sol-Ark 18kW Hybrid On/Off-Grid Inverter Product Manual
Product Warranty
Limited Warranty: Sol-Ark 12K-2P-N
10-Year Limited Warranty for Sol-Ark LLC Products. Sol-Ark LLC provides a Ten-year (10) limited
Warranty ("Warranty") against defects in materials and workmanship for its Sol-Ark LLC products
("Product"). The term of this warranty begins on the Product(s) initial purchase date, or the date
of receipt of the Product(s) by the end user, whichever is later. This must be indicated on the
invoice, bill of sale from your installer. This warranty applies to the original Sol-Ark LLC Product
purchaser and is transferable only if the Product remains installed in the original use location.
Please call Sol-Ark LLC to let us know if you are selling your Home and give us name and contact
of the new owner.
The warranty does not apply to any Product or Product part that has been modified or damaged by the following:
• Installation or Removal (examples: wrong voltage batteries, connecting batteries backward, damage due to water/rain to
electronics, preventable damage to solar wires.)
• Alteration or Disassembly.
• Normal Wear and Tear.
• Accident or Abuse.
• Unauthorized Firmware updates/software updates or alterations to the software code.
• Corrosion.
• Lightning: unless using EMP hardened system, then Sol-Ark LLC will repair the product.
• Repair or service provided by an unauthorized repair facility.
• Operation or installation contrary to manufacturer product instructions.
• Fire, Floods, or Acts of Nature.
• Shipping or Transportation.
• Incidental or consequential damage caused by other components of the power system.
• Any product whose serial number has been altered, defaced, or removed.
• Any other event not foreseeable by Sol-Ark LLC
Sol-Ark LLC liability for any defective Product, or any Product part, shall be limited to the repair or replacement of the Product, at Sol-Ark
LLC discretion. Sol-Ark LLC does not warrant or guarantee workmanship performed by any person or firm installing its Products. This warranty
does not cover the costs of installation, removal, shipping (except as described below), or reinstallation of Products or parts of Products. LCD
screen and fans are covered for 5 years from date of purchase.
THIS LIMITED WARRANTY IS THE EXCLUSIVE WARRANTY APPLICABLE TO SOL-ARK LLC PRODUCTS. SOL-ARK LLC EXPRESSLY DISCLAIMS
ANY OTHER EXPRESS OR IMPLIED WARRANTIES OF ITS PRODUCTS. SOL-ARK LLC ALSO EXPRESSLY LIMITS ITS LIABILITY IN THE EVENT
OF A PRODUCT DEFECT TO REPAIR OR REPLACEMENT IN ACCORDANCE WITH THE TERMS OF THIS LIMITED WARRANTY AND
EXCLUDES ALL LIABILITY FOR INCIDENTAL OR CONSEQUENTIAL DAMAGES, INCLUDING WITHOUT LIMITATION ANY LIABILITY FOR
PRODUCTS NOT BEING AVAILABLE FOR USE OR LOST REVENUES OR PROFITS, EVEN IF IT IS MADE AWARE OF SUCH POTENTIAL
DAMAGES.
Product FAQs
N/A
