Solis 20kW Three Phase On-Grid Inverter (98.8% Efficiency + 5y Warranty)

The Solis 20kW on-grid inverter is built for commercial rooftops and large residential systems that want high efficiency and long cover. Solis lists a maximum efficiency of over 98.8%, so very little of your solar energy is lost in the conversion. The MPPT voltage range of 200V to 800V comes with an ultra low start-up, which means the inverter wakes up early in the morning and keeps working late in the evening, adding extra production hours every day. RS485 communication is built in, with Wi-Fi, LAN or GPRS available as options, and a Wi-Fi monitoring app is available for Android and iPhone. The warranty is where Solis stands out: 5 years as standard, with an optional upgrade of up to 20 years. For a business that expects the inverter to pay for itself over many years, that long cover is a strong reason to choose it.

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Solis 20kW Three Phase On-Grid Inverter - Key Features

• 20kW rated power on a three phase output
• Maximum efficiency of over 98.8%
• 200V to 800V MPPT range with ultra low start-up voltage
• RS485 communication, with optional Wi-Fi, LAN or GPRS
• Wi-Fi monitoring with an Android and iPhone app
• 5 year standard warranty, with an optional upgrade of up to 20 years

Solis 20kW Three Phase On-Grid Inverter - Technical Specifications

• Brand: Solis
• Model: Solis 20kW Wi-Fi 3P on-grid
• Type: three phase on-grid solar inverter
• Rated power: 20kW
• Maximum efficiency: over 98.8%
• MPPT voltage range: 200V to 800V
• Communication: RS485, optional Wi-Fi / LAN / GPRS
• Monitoring: Wi-Fi, with Android and iPhone app
• Warranty: 5 years standard, up to 20 years with the optional upgrade
• Battery: not used

Who Should Buy This Inverter?

• Factories, warehouses and large commercial buildings
• Schools, hospitals and institutions with big roofs
• Net metering customers planning to export extra power
• Owners who expect a long service life and want strong cover
• Businesses that want to maximize every kilowatt hour of generation
• Installers who need a commercial grade three phase unit

Why Warranty Length Matters

A commercial solar system is typically meant to work for 15 to 25 years. The inverter is the part most likely to need attention in that time, because it works every day with heat and electrical stress. A standard 5 year warranty already covers the early years, and the option to extend it to 20 years helps you plan costs over the long run. When you compare quotes, ask exactly what each warranty includes, such as replacement terms and who handles the claim, because the details matter as much as the number of years.

Solis 20kW Three Phase On-Grid Inverter - Compatibility and Installation Guide

• Confirm that your site has a three phase supply
• Keep every string inside the 200V to 800V MPPT window
• Check the datasheet for current limits before wiring strings
• Use correctly sized DC and AC cables and check polarity
• Follow the manual for RS485, Wi-Fi and earthing setup
• Installation should be done by a qualified solar installer

Frequently Asked Questions

What is the rated power?
20kW.

How efficient is it?
Over 98.8% maximum.

What is the MPPT voltage range?
200V to 800V, with an ultra low start-up.

What is the warranty?
5 years standard, with an optional upgrade of up to 20 years.

Does it need a battery?
No, it is a grid-tied inverter.

How can I monitor it?
Through Wi-Fi with an Android and iPhone app, and RS485, LAN or GPRS options.

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