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GoodWe LV-SMT-US Series 208V Commercial Inverter - GW28KLV-SMT-US TIGO

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GoodWe LV-SMT-US Series 208V Commercial Inverter - GW28KLV-SMT-US TIGO

$6,430.83 USD

$ $6,430.83 USD

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9+ sold

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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 GW28KLV-SMT-US — 28 kW, 208/220/240 V 3-Phase Low-Voltage C&I String Inverter

The GoodWe LV-SMT-US Series 208V Commercial Inverter - GW28KLV-SMT-US TIGO is designed for superior commercial solar energy conversion. It ensures reliable and efficient power output, meeting the changing demands of modern energy systems. This inverter incorporates advanced intelligence for consistent, high-quality performance in commercial photovoltaic projects.

Built to accommodate various commercial settings, the inverter fits seamlessly in applications like schools, warehouses, retail centers, and more. Its robust construction enhances stable energy delivery and allows for easy scalability. This makes it a top choice for system designers and installers focused on long-term reliability and peak performance.

Supports up to 4 MPPTs with 2 strings per MPPT and an MPPT voltage range of 180–950 V.
Delivers a high conversion efficiency of 97.5% max and 96.5% CEC efficiency standards.
Features a durable NEMA Type 4X enclosure with integrated AFCI and rapid shutdown (PVRSS) safety capabilities.
Allows 180% DC input oversizing, remote monitoring, and firmware updates for maximum system flexibility.
Includes multiple communication methods such as RS485, Wi-Fi, LAN, optional 4G, and SunSpec Modbus protocol.

Technical Specifications

Input (DC)
Max. Input Power (kW)	50.4
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	4 / 2
Output (AC)
Nominal Output Power (kW)	28
Nominal Apparent Power (kVA)	28
Max. AC Active Power (kW)	28@208 V; 30@220 V; 32@240 V
Max. AC Apparent Power (kVA)	28@208 V; 30@220 V; 32@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)	77.7
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	62 kg (136.4 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.

Advanced Commercial Solar Performance with GoodWe LV-SMT-US Series 208V Commercial Inverter - GW28KLV-SMT-US TIGO

The GoodWe LV-SMT-US Series 208V Commercial Inverter - GW28KLV-SMT-US TIGO is optimized for commercial solar applications running on low-voltage systems. It offers 208V output compatibility that streamlines integration with existing electrical infrastructures. This reduces the complexity of installation and enhances the overall operational efficiency.

Emphasizing a high conversion efficiency, the inverter minimizes loss during the DC-to-AC power conversion process. This maximizes the utilization of the photovoltaic energy generated. As a result, businesses enjoy better financial returns and reliable performance under fluctuating load conditions.

Smart Design for Commercial Scalability

Commercial solar projects often require future expansion capabilities. This inverter supports such needs with multiple maximum power point tracking (MPPT) channels. These channels help optimize energy harvest when facing diverse array layouts.

This feature is particularly valuable for rooftop installations with shading challenges or complex configurations. Its compact and rugged enclosure is suitable for indoor and outdoor settings. Advanced thermal management technology ensures steady operation under heavy loads, reducing downtime and prolonging service life.

Integrated Safety and Monitoring Capabilities

Safety is a crucial focus in commercial solar power systems. The GoodWe LV-SMT-US Series 208V Commercial Inverter - GW28KLV-SMT-US TIGO integrates multiple protection mechanisms. These include anti-islanding, ground fault detection, and surge protection functions. Together, they provide enhanced protection for equipment and personnel alike.

Additionally, the inverter offers intelligent monitoring features that deliver real-time performance tracking. This supports proactive maintenance and rapid troubleshooting. With these tools, commercial operators gain improved system transparency and greater control over asset management.

Optimized Compatibility with Modern Solar Systems

This inverter supports advanced module-level technology for enhanced system control. Intelligent optimization functions mitigate energy losses caused by partial shading or mismatched modules. This leads to improved energy yields and system efficiency.

Its compliance with grid standards ensures smooth interaction with utility grids. The device works well in grid-tied installations and enables sophisticated commercial energy management strategies. This flexibility adds significant value to modern commercial solar systems.

Reliable Construction for Long-Term Use

Durability is a key characteristic of this inverter. It is built using high-quality components and features a sturdy housing designed for commercial environments. The inverter maintains reliable operation over a broad temperature range, providing stable energy output regardless of weather conditions.

Its low maintenance demands further appeal to businesses seeking dependable solutions. The inverter’s robust construction and reliability make it an essential part of long-term commercial energy strategies.

Ideal Choice for Commercial Energy Efficiency

For businesses aiming to reduce costs and increase sustainability, the GoodWe LV-SMT-US Series 208V Commercial Inverter - GW28KLV-SMT-US TIGO is an excellent solution. It balances efficiency, intelligence, and durability effectively. The device supports a variety of installation types with flexible and reliable operation.

Choosing this inverter enables commercial owners to meet their current energy goals while preparing for future growth. It serves as a strategic component within commercial solar power systems. This product successfully merges reliability with performance for long-term investment benefits.

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 GW28KLV-SMT-US — 28 kW, 208/220/240 V 3-Phase Low-Voltage C&I String Inverter

Supports up to 4 MPPTs with 2 strings per MPPT and an MPPT voltage range of 180–950 V.
Delivers a high conversion efficiency of 97.5% max and 96.5% CEC efficiency standards.
Features a durable NEMA Type 4X enclosure with integrated AFCI and rapid shutdown (PVRSS) safety capabilities.
Allows 180% DC input oversizing, remote monitoring, and firmware updates for maximum system flexibility.
Includes multiple communication methods such as RS485, Wi-Fi, LAN, optional 4G, and SunSpec Modbus protocol.

Technical Specifications

Input (DC)
Max. Input Power (kW)	50.4
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	4 / 2
Output (AC)
Nominal Output Power (kW)	28
Nominal Apparent Power (kVA)	28
Max. AC Active Power (kW)	28@208 V; 30@220 V; 32@240 V
Max. AC Apparent Power (kVA)	28@208 V; 30@220 V; 32@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)	77.7
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	62 kg (136.4 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.

Advanced Commercial Solar Performance with GoodWe LV-SMT-US Series 208V Commercial Inverter - GW28KLV-SMT-US TIGO

Smart Design for Commercial Scalability

Integrated Safety and Monitoring Capabilities

Optimized Compatibility with Modern Solar Systems

Reliable Construction for Long-Term Use

Ideal Choice for Commercial Energy Efficiency

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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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