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GoodWe LV-SMT-US Series 208V Commercial Inverter - GW22KLV-SMT-US TIGO

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GoodWe LV-SMT-US Series 208V Commercial Inverter - GW22KLV-SMT-US TIGO

$6,022.58 USD

$ $6,022.58 USD

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In Stock

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9+ sold

In the last 7 days

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What is your return policy?

Returns are free in the first 30 days with no restocking or processing fees, although the customer may be responsible for paying return shipping. See our complete return policy on our Shipping, Delivery, and Returns page linked in the footer of this website.

What’s covered by your return policy?

Our returns policy covers all purchases made through Portlandia Electric Supply. For warranty issues, as authorized distributors, we honor the full manufacturer warranty of ALL the brands on our website. See our complete returns and warranty policies on our Shipping, Deliver, and Returns page.

How long will it take to receive my order?

All orders are processed within 72 hours and you can expect delivery on most orders within 5-7 business days. You will receive access to our customer portal after ordering, where it is easy to track all your shipments. See our Shipping, Delivery and Returns page for more details.

What are your financing and payment options?

We offer several ways to pay to make getting your solar kit simple:

Credit Card: if the purchase is greater than your card’s limit, you can split the cost onto multiple cards as well as Paypal, financing through Affirm, and ACH/bank transfer

You can arrange financing during the checkout process, or scroll further down this page for more details. Please note, if you'd like to finance your order, you can do so instantly, right at checkout.

How does your Lifetime Customer Support work?

Our legendary lifetime customer support has helped make us the #1 online solar retailer! We have a dedicated team of solar professionals standing by to help you navigate the world of solar with ease. From selecting the perfect solar kit to installation and beyond, we provide support and expertise at every step of the journey.If you need help with ordering, shipping, troubleshooting, expanding your system, warranty issues, or anything else you have questions about for as long as you own your Portlandia Electric Supply equipment, we’ve got you covered: we’re always only a phone call or email away.

GoodWe GW22KLV-SMT-US — 22 kW, 208/220/240 V 3-Phase Low-Voltage C&I String Inverter

The GoodWe LV-SMT-US Series 208V Commercial Inverter is a powerful, intelligent, and future-ready solution designed to meet the growing energy demands of commercial solar installations. Built with advanced safety features, high efficiency, and seamless system integration, this inverter is ideal for businesses looking to maximize solar performance while maintaining long-term reliability.

Engineered for low-voltage commercial applications, this inverter supports stable energy conversion in 208V three-phase systems, making it a dependable choice for warehouses, retail buildings, educational institutions, and light industrial facilities.

Up to 3 MPPTs (2 strings each); wide 180–950 V MPPT window.
97.5% max / 96.5% CEC efficiency.
NEMA Type 4X enclosure; integrated AFCI & rapid shutdown (PVRSS).
Commission quickly via SolarGo; remote monitoring & firmware updates.
Communications: RS485, Wi-Fi+LAN, optional 4G; SunSpec Modbus.

Technical Specifications

Input (DC)
Max. Input Power (kW)	39.6
Max. Input Voltage (V)	1000
MPPT Operating Voltage Range (V)	180–950
Start-up Voltage (V)	200
Nominal Input Voltage (V)	450
Max. Input Current per MPPT (A)	32
Max. Short-Circuit Current per MPPT (A)	45
Number of MPPTs / Strings per MPPT	3 / 2
Output (AC)
Nominal Output Power (kW)	22
Nominal Apparent Power (kVA)	22
Max. AC Active Power (kW)	22@208 V; 23@220 V; 25@240 V
Max. AC Apparent Power (kVA)	22@208 V; 23@220 V; 25@240 V
Nominal AC Voltage	208/220/240 V, 3L/N/PE or 3L/PE
Output Voltage Range	183.0–228.8 V @208; 193.6–242.0 V @220; 211.2–264.0 V @240
Nominal AC Frequency (Hz)	60 (58.5–61.2 Hz range)
Max. Output Current (A)	61.0
Power Factor	~1 (adjustable 0.8 leading to 0.8 lagging)
Total Harmonic Distortion	< 3%
Efficiency
Max. Efficiency	97.5%
CEC Efficiency	96.5%
Protection
PV String Current / Insulation / Residual Current Monitoring	Integrated
PV Reverse Polarity / Anti-islanding	Integrated
AC Overcurrent / Short Circuit / Overvoltage	Integrated
DC Switch	Integrated
Surge Protection	DC Type II (Type I+II optional); AC Type II
AFCI / Rapid Shutdown / Power supply at night	Integrated
General
Operating Temp. Range	-30 ~ +60 °C (>45 °C derating)
Relative Humidity	0 ~ 100%
Max. Operating Altitude	4000 m (>3000 m derating)
Cooling	Smart fan cooling
User Interface	LED, WLAN + App
Communication	RS485, Wi-Fi + LAN, optional 4G; Modbus-RTU (SunSpec)
Dimensions (W×H×D)	520 × 990 × 220 mm (20.5 × 39.0 × 8.7 in)
Weight	60 kg (132.2 lb)
Topology	Non-isolated
Self-consumption at Night	< 12 W*
Ingress Protection	Type 4X (NEMA 4X)
DC Connector	#12 ~ #8 AWG Cu
AC Connector	OT (#5–3/0 AWG, Cu or Al)
Compliance
Certifications	UL 1741 (SB), IEEE 1547-2018 / 1547.1-2020 / 1547a-2020; Hawaiian Electric SRD-V2.0; IEEE 2030.5; PVRSS (NEC 690.12; CEC 64-218)

* Less than 1 W without optional RSD and 24-hour load monitoring (datasheet note).

Specs source: GoodWe LVSMT-US datasheet.

Why Choose the GoodWe LV-SMT-US Series 208V Commercial Inverter?

Commercial solar systems demand consistent output, high efficiency, and robust protection. The GoodWe LV-SMT-US Series 208V Commercial Inverter delivers on all fronts with a design focused on performance optimization and operational safety.

This inverter supports advanced MPPT technology, allowing it to adapt to varying sunlight conditions and extract maximum power throughout the day. Its commercial-grade architecture ensures minimal downtime, even under heavy load conditions, helping businesses achieve faster returns on their solar investment.

Advanced Features for Commercial-Scale Performance

The GoodWe LV-SMT-US Series 208V Commercial Inverter is equipped with cutting-edge features that simplify installation, monitoring, and long-term operation:

High conversion efficiency to reduce energy losses
Multiple MPPTs for flexible system design
Integrated AFCI protection to enhance fire safety
Built-in monitoring compatibility for real-time performance tracking
Compact, lightweight design for easier commercial installation

These features collectively ensure that commercial solar projects operate efficiently while complying with modern safety standards.

Optimized for Low-Voltage 208V Commercial Applications

One of the standout advantages of the GoodWe LV-SMT-US Series 208V Commercial Inverter is its compatibility with low-voltage commercial grids. Many commercial buildings operate on 208V systems, and this inverter is specifically engineered to deliver stable output without requiring additional transformers or complex electrical modifications.

This optimized voltage compatibility helps reduce system costs, improve efficiency, and simplify project planning for installers and facility managers.

Seamless Integration with Smart Energy Systems

The GoodWe LV-SMT-US Series 208V Commercial Inverter - GW22KLV-SMT-US TIGO is designed to integrate effortlessly with modern energy management platforms. Its smart monitoring capabilities allow operators to track system health, energy production, and fault alerts in real time.

With enhanced communication options, businesses can optimize performance, detect issues early, and maintain system efficiency over the long term. This level of visibility is especially valuable for multi-site commercial solar deployments.

Built-In Safety and Compliance You Can Trust

Safety is a critical requirement for any commercial solar system, and the GoodWe LV-SMT-US Series 208V Commercial Inverter meets strict industry standards. It includes advanced protection mechanisms such as:

Arc Fault Circuit Interruption (AFCI)
Anti-islanding protection
Over-voltage and over-current safeguards
Robust thermal management

These safety features help protect equipment, property, and personnel while ensuring regulatory compliance across commercial environments.

Long-Term Reliability and Cost Efficiency

Durability and reliability are essential for commercial operations. The GoodWe LV-SMT-US Series 208V Commercial Inverter is built with high-quality components designed to withstand demanding conditions and continuous operation.

Its efficient thermal design reduces stress on internal components, extending operational lifespan and minimizing maintenance costs. Over time, this reliability translates into lower operational expenses and improved return on investment for businesses adopting solar energy.

Ideal Applications for Commercial Solar Projects

The versatility of the GoodWe LV-SMT-US Series 208V Commercial Inverter makes it suitable for a wide range of commercial applications, including:

Office buildings
Retail complexes
Schools and universities
Warehouses and distribution centers
Small industrial facilities

Its flexible design and dependable performance allow it to scale with growing energy needs while maintaining system stability.

What is your return policy?

What’s covered by your return policy?

How long will it take to receive my order?

What are your financing and payment options?

We offer several ways to pay to make getting your solar kit simple:

Credit Card: if the purchase is greater than your card’s limit, you can split the cost onto multiple cards as well as Paypal, financing through Affirm, and ACH/bank transfer

You can arrange financing during the checkout process, or scroll further down this page for more details. Please note, if you'd like to finance your order, you can do so instantly, right at checkout.

How does your Lifetime Customer Support work?

GoodWe GW22KLV-SMT-US — 22 kW, 208/220/240 V 3-Phase Low-Voltage C&I String Inverter

Up to 3 MPPTs (2 strings each); wide 180–950 V MPPT window.
97.5% max / 96.5% CEC efficiency.
NEMA Type 4X enclosure; integrated AFCI & rapid shutdown (PVRSS).
Commission quickly via SolarGo; remote monitoring & firmware updates.
Communications: RS485, Wi-Fi+LAN, optional 4G; SunSpec Modbus.

Technical Specifications

Input (DC)
Max. Input Power (kW)	39.6
Max. Input Voltage (V)	1000
MPPT Operating Voltage Range (V)	180–950
Start-up Voltage (V)	200
Nominal Input Voltage (V)	450
Max. Input Current per MPPT (A)	32
Max. Short-Circuit Current per MPPT (A)	45
Number of MPPTs / Strings per MPPT	3 / 2
Output (AC)
Nominal Output Power (kW)	22
Nominal Apparent Power (kVA)	22
Max. AC Active Power (kW)	22@208 V; 23@220 V; 25@240 V
Max. AC Apparent Power (kVA)	22@208 V; 23@220 V; 25@240 V
Nominal AC Voltage	208/220/240 V, 3L/N/PE or 3L/PE
Output Voltage Range	183.0–228.8 V @208; 193.6–242.0 V @220; 211.2–264.0 V @240
Nominal AC Frequency (Hz)	60 (58.5–61.2 Hz range)
Max. Output Current (A)	61.0
Power Factor	~1 (adjustable 0.8 leading to 0.8 lagging)
Total Harmonic Distortion	< 3%
Efficiency
Max. Efficiency	97.5%
CEC Efficiency	96.5%
Protection
PV String Current / Insulation / Residual Current Monitoring	Integrated
PV Reverse Polarity / Anti-islanding	Integrated
AC Overcurrent / Short Circuit / Overvoltage	Integrated
DC Switch	Integrated
Surge Protection	DC Type II (Type I+II optional); AC Type II
AFCI / Rapid Shutdown / Power supply at night	Integrated
General
Operating Temp. Range	-30 ~ +60 °C (>45 °C derating)
Relative Humidity	0 ~ 100%
Max. Operating Altitude	4000 m (>3000 m derating)
Cooling	Smart fan cooling
User Interface	LED, WLAN + App
Communication	RS485, Wi-Fi + LAN, optional 4G; Modbus-RTU (SunSpec)
Dimensions (W×H×D)	520 × 990 × 220 mm (20.5 × 39.0 × 8.7 in)
Weight	60 kg (132.2 lb)
Topology	Non-isolated
Self-consumption at Night	< 12 W*
Ingress Protection	Type 4X (NEMA 4X)
DC Connector	#12 ~ #8 AWG Cu
AC Connector	OT (#5–3/0 AWG, Cu or Al)
Compliance
Certifications	UL 1741 (SB), IEEE 1547-2018 / 1547.1-2020 / 1547a-2020; Hawaiian Electric SRD-V2.0; IEEE 2030.5; PVRSS (NEC 690.12; CEC 64-218)

* Less than 1 W without optional RSD and 24-hour load monitoring (datasheet note).

Specs source: GoodWe LVSMT-US datasheet.

Why Choose the GoodWe LV-SMT-US Series 208V Commercial Inverter?

Advanced Features for Commercial-Scale Performance

The GoodWe LV-SMT-US Series 208V Commercial Inverter is equipped with cutting-edge features that simplify installation, monitoring, and long-term operation:

High conversion efficiency to reduce energy losses
Multiple MPPTs for flexible system design
Integrated AFCI protection to enhance fire safety
Built-in monitoring compatibility for real-time performance tracking
Compact, lightweight design for easier commercial installation

These features collectively ensure that commercial solar projects operate efficiently while complying with modern safety standards.

Optimized for Low-Voltage 208V Commercial Applications

This optimized voltage compatibility helps reduce system costs, improve efficiency, and simplify project planning for installers and facility managers.

Seamless Integration with Smart Energy Systems

Built-In Safety and Compliance You Can Trust

Arc Fault Circuit Interruption (AFCI)
Anti-islanding protection
Over-voltage and over-current safeguards
Robust thermal management

These safety features help protect equipment, property, and personnel while ensuring regulatory compliance across commercial environments.

Long-Term Reliability and Cost Efficiency

Ideal Applications for Commercial Solar Projects

The versatility of the GoodWe LV-SMT-US Series 208V Commercial Inverter makes it suitable for a wide range of commercial applications, including:

Office buildings
Retail complexes
Schools and universities
Warehouses and distribution centers
Small industrial facilities

Its flexible design and dependable performance allow it to scale with growing energy needs while maintaining system stability.

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Customer Success Stories

Troy P

EG4 off-grid base kit, Happy with my purchase.

This is the first stage of my three planned purches. I got the eg4 inverter 6000 XP base kit with six 400 watt panels and the two server rack batteries. Did a little online research and followed the instructions and it got set up without any issues. Right now I'm just running it in my garage on a single outlet and have been running dual 750 watt water distillers with it. Once I get the second inverter and a bunch more panels and batteries, I plan on attaching it to my subpanel in my house that has my lights and outlets and appliances on it. Then I'll get a soft start for my AC and blower and run it on my main panel.

Jacob B

Easy Process, Genuine Support

Trying to pick the correct solar system for your needs can be very technical and frustrating. I wanted to thank Yvhan and the Portlandia Electric supply team for their patience and helpful attitudes through multiple calls. I feel like we were able to narrow it down to what worked for me and my family. My system works great and I couldn't be happier to have picked Portlandia Electric Supply.

Patrick B

Off Grid Solar Purchase

I wanted to get an offgrid solar system for years but didn’t know where to start. I found Portlandia Electric Supply on Facebook and decided to submit a quote. Within 24 hours I had a custom proposal that was almost half the price of the companies I had previously got quotes from. My wife and I decided to order online and the kit came in a timely manner and it was an easy install. Great company to work with!

James Martin

Highly Recommend

I would like to take the time to express the outstanding service that I was provided with by Portlandia Electric Supply. They provided me with all the answers to my questions, and after reviewing our quote over the phone I felt comfortable proceeding to order my kit. It’s exactly what I needed and they were there to help us over the phone when we had questions installing it. I highly recommend others in need to choose Portlandia Electric Supply.

Brian H

Solar Kit for Mobile Work Van

As a professional videographer, I needed reliable power on the go.Portlandia Electric Supply Delta Pro and roof-mounted panels were the perfect solution. Setup was easy, and the kit included everything needed. The Delta Pro powers my cameras, lights, laptop, and a small fridge with impressive battery capacity.

Keith S

Best Tech Support

You folks have been wonderful guiding me through the ins and outs of going solar. Plus your tech guys Rod and Nelson are the absolute best. They explained all the different aspects of inverters, batteries and how to keep them in top condition. Too much more to put here… but no other company has the 100% tech support you provide for your customers!

Coll A

Great Experience

My experience with Portlandia Electric Supply has been excellent. Before the sales, they answered all my questions to assure that I got what I needed. After the sales they continued to support me with answers and help. I had a warranty issue with a unit, and it was handled as well as possible. I would recommend them to anyone looking to go solar.

Troy P

EG4 off-grid base kit, Happy with my purchase.

Jacob B

Easy Process, Genuine Support

Patrick B

Off Grid Solar Purchase

James Martin

Highly Recommend

Brian H

Solar Kit for Mobile Work Van

Keith S

Best Tech Support

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