Solis 20kW Inverter Price in Lucknow

For rooftop projects in Lucknow that call for a three-phase connection, such as large independent homes, farmhouses, or small commercial properties, the Solis S5-GR3P(5-20)K is typically the inverter installers specify on the BOQ. This piece walks through the model itself, what actually pushes the final cost up or down, and how to buy genuine stock in the city without overpaying. Looking for a smaller home system instead? Our guide to Solis residential inverters covers the full 1kW-20kW lineup.

S5-GR3P(5-20)K: Product Overview

This is Solis's three-phase on-grid inverter for the upper end of residential and light commercial rooftops, and it's built specifically for setups this large.

It also supports export power control for grid compliance, and its compact housing is built for simple installation and maintenance, with support for high-power modules that can bring installation costs down further. Being strictly on-grid, it feeds solar output directly into the grid with no battery in the loop, which keeps both the system and the price simpler than a hybrid setup of the same size.

Use cases of a 20kW On-Grid Inverter

Three things tend to push Lucknow buyers toward this size specifically:

Three-phase connections are far more common on the properties that need this much capacity, farmhouses, larger independent homes, small commercial buildings, than on a typical apartment or small house, and the S5-GR3P(5-20)K is designed around exactly that supply type.

Daytime power draw is heavier too. Multiple AC units, motors, or commercial equipment running through the day need an array and inverter combination sized to actually offset that load, not just trim the edges of a bill.

And grid supply in Lucknow's better-connected areas is usually stable enough that most buyers at this size stick with on-grid rather than paying more for hybrid battery backup, which is why this article sticks to the on-grid line rather than mixing in hybrid comparisons.

Key Factors That Influence Pricing

The inverter's list price isn't really the variable here, it's everything around it:

1. GST adds 12% on top of the ex-GST figure, and plenty of online listings quietly leave that out

2. Installation is a bigger slice of the total at this size, since three-phase cabling and mounting for a 20kW array costs meaningfully more than a small single-phase job

3. Where you're located matters a little; Lucknow, as a major UP distribution point, generally sees lower freight cost than smaller towns further out

4. Warranty length shifts the number too, the base 10-year term is built into the price, extensions cost a bit more

5. Buying unauthorized or grey-market stock might look cheaper upfront, but at 20kW especially, losing manufacturer warranty support is a real risk if something fails

6. If subsidy is part of your budgeting, know that the inverter itself isn't separately subsidized, though it factors into total system cost, worth checking current terms on UPNEDA before you finalize a size

None of this adds up to a single number we can post here, since it moves with input costs and order volume. Ask OSG Oriana for a current Solis 20kW quote in Lucknow →

Before You Sign Off on a Quote

A short checklist worth running through:

• Is GST already in the number, or added separately? A quote that's 12% lower might just be hiding the tax

• Is the seller an authorized Solis distributor? At this capacity, warranty backing matters more given how much a replacement would cost

• Is installation priced separately from the unit? It should be, so you can actually compare like for like across quotes

• What warranty term is included? Confirm it's the standard 10 years, not something shorter dressed up to look competitive

Sourcing Genuine Stock in Lucknow

OSG Oriana India Pvt Ltd is the authorized PAN India distributor for Solis, and we keep the S5-GR3P(5-20)K in stock with full manufacturer warranty backing. We work with installers, EPCs, and property owners across Lucknow, Kanpur, Varanasi, Agra, Meerut, Prayagraj, and the rest of Uttar Pradesh.

Summary

For a 20kW on-grid system in Lucknow, the S5-GR3P(5-20)K is the standard choice for three-phase properties, and the number you'll actually pay depends far more on GST, installation scope, and warranty term than on any headline unit price. Get an itemized quote rather than comparing round numbers from different sellers.

Want current pricing? Talk to OSG Oriana's Solis team, or browse the full Solis On Grid inverter range.