RSK Solar Energy
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Solar panels

Mono PERC and polycrystalline modules from UTL, from 40 W panels for a single light to 400 W modules for rooftop systems. What the numbers on a datasheet mean, and the one check that decides whether you get the subsidy.

Updated 11 September 2026

UTL panels in the catalogue
PanelTypeRating
Mono Solar Panel 735 Watt (Half Cut)Mono PERC735 W
UTL 590 Watt N-Type TOPCon Bifacial Dual Glass Solar ModulePolycrystalline590 W
UTL 580 Watt Dual glass Bifacial TOPCon Solar PanelPolycrystalline580 W
UTL 560 Watt N-Type TOPCon Bifacial Solar PanelPolycrystalline560 W
Half Cut Mono Solar Panel 555 Watt Bi-FacialMono PERC555 W
Mono Solar Panel 555 Watt (Half Cut)Mono PERC555 W
Mono PERC Solar Panel 550 Watt 24V Bi-FacialMono PERC550 W
UTL 550 Watt 24V TOPCon Bi-Facial Dual Glass Solar PanelPolycrystalline550 W
UTL 545 Watt TOPCon Bifacial Solar PanelPolycrystalline545 W
UTL 535 Watt TOPCon Bi-Facial Solar PanelPolycrystalline535 W
UTL 510 Watt/24 Volt Bifacial N-Type TOPCon Solar PanelPolycrystalline510 W
UTL 500 Watt Bi-facial N-Type TOPCon Solar PanelPolycrystalline500 W
Mono Solar Panel 400 WattMono PERC400 W
UTL 390 Watt Half-Cut Mono Solar PanelMono PERC390 W
Half Cut Mono Solar Panel 365 Watt BiFacialMono PERC365 W
340 Watt TOPCon Bifacial Solar PanelPolycrystalline340 W
UTL 340 Watt Mono Half Cut Solar PanelMono PERC340 W
335 Watt Solar PanelPolycrystalline335 W
330 Watt Solar PanelPolycrystalline330 W
UTL 280 Watt N-Type TOPCon Solar PanelPolycrystalline280 W
UTL 275 Watt N-Type TOPCon Solar PanelPolycrystalline275 W
265 Watt Solar PanelPolycrystalline265 W
UTL 240 Watt Mono Half Cut Solar PanelMono PERC240 W
Mono Solar Panel 225 WattMono PERC225 W
Mono Solar Panel 200 WattMono PERC200 W
Mono Solar Panel 165 WattMono PERC165 W
160 Watt Solar PanelPolycrystalline160 W
150 Watt TOPCon Solar Panel (Half-Cut)Polycrystalline150 W
UTL 150 Watt 12V Mono PERC Half-Cut Solar PanelMono PERC150 W
UTL 110 Watt/ 12V solar PanelPolycrystalline110 W
100 Watt Solar PanelPolycrystalline100 W
60 Watt Solar PanelPolycrystalline60 W
55 Watt Mono PERC Solar PanelMono PERC55 W
40 Watt Solar PanelPolycrystalline40 W
40 Watt/12V Mono PERC Solar PanelMono PERC40 W
Mono PERC Solar PanelMono PERCRange
UTL 120W 12V Mono PERC Half-cut Solar PanelMono PERCRange
UTL500-132BM Mono Domestic Content Requirement Solar ModuleMono PERCRange
UTL 520W Mono DCR 24V Bifacial Solar ModuleMono PERCRange
UTL530-144M Mono Domestic Content Requirement Solar ModuleMono PERCRange
UTL555-144GM Mono Domestic Content Requirement Solar ModuleMono PERCRange
UTL580-144GT TOPCon Domestic Content Requirement Solar ModulePolycrystallineRange
UTL625-132GT TOPCon Domestic Content Requirement Solar ModulePolycrystallineRange
UTL Solar Panel 630Wp G12R TOPCon Bifacial (Non-DCR)PolycrystallineRange
UTL Solar 55W TOPCon Solar PanelPolycrystallineRange

Reading a panel datasheet

  • Maximum power (Pmax), in watts, measured at standard test conditions: 1000 W/m² of sunlight at a cell temperature of 25 °C. Punjab rooftops in May are far hotter than 25 °C, so real output is lower at midday. Our calculator allows for this.
  • Module efficiency. The share of sunlight turned into electricity. Higher efficiency means more watts per square foot of roof, which matters when the roof is small.
  • Voc and Isc, open-circuit voltage and short-circuit current. The installer uses these to match the panel strings to the inverter.
  • Power tolerance. A positive tolerance means a panel will not produce less than its rating at test conditions.
  • Warranty. UTL lists a 25-year performance warranty on its panels; the product warranty for defects is separate. Check both on the datasheet of the model you buy.

The check that decides the subsidy

PM Surya Ghar pays only for systems built with ALMM-listed modules. The inspector checks the model. If it is not on the list, the subsidy is lost and cannot be recovered after installation. Ask for the exact model number on your quote and check it against the current ALMM list before the panels go up.

Panels alone, or a complete system?

If you are replacing or adding panels to an existing system, match the voltage and current to your inverter or charge controller. If you are starting fresh, buy a matched system: panels, inverter, mounting structure and wiring designed together. It avoids the mismatches that waste generation.

Questions we are asked

Mono PERC or polycrystalline?

For rooftop systems, mono PERC. It gives more watts from the same roof area and handles heat slightly better. Small polycrystalline panels still make sense for lighting kits and small off-grid loads where cost matters more than space.

How much roof does a panel need?

A 72-cell module of 390 to 400 W is roughly 2 m long and 1 m wide. For a complete system, allow about 100 sq ft of shade-free roof per kW, including the gaps between rows for access and to avoid shading.

Do the panels need to be ALMM-listed?

For the PM Surya Ghar subsidy, yes. Only models on the government’s ALMM list qualify. We confirm the listing of the exact model on your quote before installation.