UTL vs Servotech Solar Panels: TOPCon Compared

Servotech is a Delhi company that makes EV chargers and inverters as well as TOPCon panels. On the panels, the efficiency is level with UTL’s and the product warranty matches; the performance warranty is where they part.

At a glance

From each brand’s published figures, checked 27 September 2026
	UTL	Servotech
Module compared	630 Wp G12R TOPCon	TOPCon bifacial, N-type 144 half-cut, 580 to 600 W
Module efficiency	23.32%	23.20% maximum
Performance warranty	30 years (UTL TOPCon modules)	25 years linear power output
Product warranty	10 years (UTL’s 520 W DCR panel)	10 years, material and workmanship

Panel warranties, as published

UTL TOPCon, performance Performance warranty 30 yrs
Servotech TOPCon, performance Linear power output 25 yrs
UTL 520 W DCR, product Product warranty 10 yrs
Servotech TOPCon, product Material and workmanship 10 yrs

The performance warranty covers how much power a panel still makes as it ages; the product warranty covers defects.

Show as a table

Panel warranties, as published	Warranty, years
UTL TOPCon, performance (Performance warranty)	30 yrs
Servotech TOPCon, performance (Linear power output)	25 yrs
UTL 520 W DCR, product (Product warranty)	10 yrs
Servotech TOPCon, product (Material and workmanship)	10 yrs

A performance warranty covers output as the panel ages. Five extra years on it means five more years in which a panel making less than its promised share can be claimed.

Choose Servotech if

You already use Servotech equipment and want to stay with one supplier.

Choose UTL if

You want the longer performance warranty, 30 years against 25.
You need DCR panels for the PM Surya Ghar subsidy. See DCR and non-DCR panels.

Where RSK Solar Energy fits

RSK Solar Energy is a UTL Solar distributor in Mohali. We do not stock Servotech, so we can quote the UTL side. The solar calculator gives the system size your bill needs.

Sources

UTL: 630 Wp G12R TOPCon, 545 W TOPCon and 520 W DCR panel, from UTL’s specifications
Servotech: TOPCon modules, bifacial solar panels, on Servotech’s own site, checked 27 September 2026

Questions we are asked

Which is more efficient, UTL or Servotech?

They are level for practical purposes. Servotech's TOPCon bifacial 580 to 600 W lists 23.20%. UTL's 630 Wp G12R TOPCon lists 23.32%.

What warranty do Servotech panels carry?

Servotech lists 10 years on material and workmanship and 25 years on linear power output for its TOPCon bifacial range. UTL lists 10 years product warranty on its 520 W DCR panel and 30 years on performance for its TOPCon modules.

Does RSK Solar Energy sell Servotech?

No. RSK Solar Energy is a UTL Solar distributor. We can quote UTL panels and help you compare them with a Servotech quote.