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Manufacturer review

Tata Power Solar panels, read off the datasheets

Tata Power Solar is India's largest integrated solar company. They operate in manufacturing solar modules, EPC services for solar power projects, and creating innovative solar products. The company is committed to providing access to energy, especially in remote, off-grid parts of India.

Everything below is computed from those 38 datasheets: no score out of ten, no ranking of brands against each other, and nothing a manufacturer can pay to change. Where Tata Power Solar does not publish a figure, it is left out of the average rather than assumed.

Panels
38
models in the database
Average efficiency
21.5%
across the catalogue
Best efficiency
23.1%
their strongest module
Power range
530-642 Wp
smallest to largest
Bifacial share
100%
38 dual-sided models
Average warranty
28 years
guaranteed output term
01

The top of the range

The leaders of Tata Power Solar's own catalogue on the two figures a specification sheet leads with. Neither is a verdict: the most efficient module in a range is rarely the one that suits a given roof.

Most efficient module efficiency
1 TP642LG10B Monocrystalline bifacial 642 Wp 23.1% 2 GSD7S72T-595WT Monocrystalline bifacial 595 Wp 23.0% 3 TP637LG10B Monocrystalline bifacial 637 Wp 22.9% 4 GSD7S72T-590WT Monocrystalline bifacial 590 Wp 22.8% 5 TP631LG10B Monocrystalline bifacial 631 Wp 22.7%
Sort the whole catalogue by efficiency
Highest power nameplate output
1 TP642LG10B Monocrystalline bifacial 23.1% 642 Wp 2 TP637LG10B Monocrystalline bifacial 22.9% 637 Wp 3 TP631LG10B Monocrystalline bifacial 22.7% 631 Wp 4 TP626LG10B Monocrystalline bifacial 22.5% 626 Wp 5 TP621LG10B Monocrystalline bifacial 22.3% 621 Wp
Sort the whole catalogue by power
02

By what the array is for

Three cuts of the same catalogue, each ordered by efficiency inside its band. An empty column means the brand does not build for that case.

For a commercial array 500 Wp and up
1 TP642LG10B Monocrystalline bifacial 642 Wp 23.1% 2 TP637LG10B Monocrystalline bifacial 637 Wp 22.9% 3 TP631LG10B Monocrystalline bifacial 631 Wp 22.7% 4 TP626LG10B Monocrystalline bifacial 626 Wp 22.5% 5 TP621LG10B Monocrystalline bifacial 621 Wp 22.3%
For a ground mount dual-sided
1 TP642LG10B Monocrystalline bifacial 642 Wp 23.1% 2 GSD7S72T-595WT Monocrystalline bifacial 595 Wp 23.0% 3 TP637LG10B Monocrystalline bifacial 637 Wp 22.9% 4 GSD7S72T-590WT Monocrystalline bifacial 590 Wp 22.8% 5 TP631LG10B Monocrystalline bifacial 631 Wp 22.7%
03

What the catalogue is made of

Cell technology across the market

Shares are of the 38 modules in the database, counted once each. A power ladder of one module counts as its rungs, which is why a large catalogue is not the same as a wide one.

Cell technology share of the catalogue
PERC 81.6% 31 TOPCon 18.4% 7
PERC accounts for 81.6% of the catalogue - 31 of 38 modules.
Efficiency spread share of the catalogue
20-21% 31.6% 12 21-22% 36.8% 14 22-23% 26.3% 10 23%+ 5.3% 2
04

Strengths and gaps

Both lists are derived from the figures above rather than written about the brand. A gap here is a gap in what is published, which is not always a gap in what is built.

What this catalogue is good at
  • Tier 1 bankable manufacturer - recognized by major financial institutions
  • High-efficiency panels available (up to 23.1%)
  • Strong bifacial lineup - 100% of portfolio supports dual-sided generation
  • Strong warranty coverage averaging 28 years
  • High-power panels available (up to 642W) for commercial applications
  • Established manufacturer with 37+ years of experience
  • Large-scale production capacity of 4.3 GW
Where it is thin
  • Limited adoption of latest cell technologies (TOPCon/HJT)
05

In short

Tata Power Solar: Tata Power Solar is an industry leader in efficiency, offering 38 panels suitable for commercial and utility-scale projects. With an average efficiency of 21.5% and top models reaching 23.1%, their panels deliver competitive performance. As a Tier 1 bankable manufacturer, they offer strong financial backing and long-term reliability.
Common questions
Is Tata Power Solar a good solar panel manufacturer?
Tata Power Solar offers 38 solar panel models with an average efficiency of 21.5%. They are a Tier 1 bankable manufacturer, recognized by major financial institutions for reliability. Check their full panel lineup on ComparePV to find the best model for your needs.
What types of solar panels does Tata Power Solar make?
Tata Power Solar manufactures panels ranging from 530W to 642W, covering both residential and commercial applications. Their portfolio includes PERC (82%), TOPCon (18%) cell technologies.
How efficient are Tata Power Solar solar panels?
Tata Power Solar panels have an average efficiency of 21.5%, with their most efficient model reaching 23.1%. This puts them among the industry leaders in the current market.
Does Tata Power Solar make bifacial solar panels?
Yes, Tata Power Solar offers 38 bifacial panels, representing 100% of their portfolio. Bifacial panels can generate additional energy from the rear side, making them ideal for ground-mounted systems.
What warranty does Tata Power Solar offer on their solar panels?
Tata Power Solar panels come with an average performance warranty of 28 years. This warranty guarantees that the panels will maintain a specified level of power output over time, protecting your investment against degradation beyond normal levels.
Are Tata Power Solar panels good for residential use?
Tata Power Solar offers panels in the residential-friendly 380-460W range. For home installations, look for models with high efficiency and compact dimensions to maximize power from limited roof space. Browse their full lineup on ComparePV to filter by power range and specifications.
Does Tata Power Solar use TOPCon technology?
Yes, Tata Power Solar has adopted TOPCon (Tunnel Oxide Passivated Contact) cell technology in part of their portfolio. TOPCon cells offer higher efficiency and better temperature performance compared to older PERC technology, making them a strong choice for maximizing energy production.
06

Compared with

Build your own

A brand comparison weighs the two catalogues against each other - what each builds, at what efficiency, and how deep the range goes.

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