Tata Power Solar Solar Panels Review 2026

Company Overview

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.

Headquarters

Mumbai, Maharashtra, India

Founded

1989

Employees

1245

Production Capacity

4.3 GW

Stock

NSE: TATAPOWER

Website

Visit site

Key Statistics

Total Panels 38

Avg. Efficiency 21.5%

Max Efficiency 23.1%

Power Range 530W – 642W

Avg. Power 580W

Avg. Temp Coeff -0.35%/°C

Bifacial Panels 38 (100%)

Avg. Warranty 28 years

Technology Breakdown

Cell Technologies

PERC 31 panels (81.6%)

TOPCon 7 panels (18.4%)

Power Distribution

500-599W 29 panels (76.3%)

600-699W 9 panels (23.7%)

Top Picks from Tata Power Solar

Most Efficient

#	Model	Power	Efficiency	Tech
1	TP642LG10B	642W	23.1%	Monocrystalline
2	GSD7S72T-595WT	595W	23.0%	Monocrystalline
3	TP637LG10B	637W	22.9%	Monocrystalline
4	GSD7S72T-590WT	590W	22.8%	Monocrystalline
5	TP631LG10B	631W	22.7%	Monocrystalline

Highest Power

#	Model	Power	Efficiency	Tech
1	TP642LG10B	642W	23.1%	Monocrystalline
2	TP637LG10B	637W	22.9%	Monocrystalline
3	TP631LG10B	631W	22.7%	Monocrystalline
4	TP626LG10B	626W	22.5%	Monocrystalline
5	TP621LG10B	621W	22.3%	Monocrystalline

Best Tata Power Solar Panels by Use Case

Best for Commercial

500W+, ranked by power output

#1 TP642LG10B

642W 23.1%

#2 TP637LG10B

637W 22.9%

#3 TP631LG10B

631W 22.7%

#4 TP626LG10B

626W 22.5%

#5 TP621LG10B

621W 22.3%

Best Bifacial

Dual-sided panels, ranked by efficiency

#1 TP642LG10B

23.1% 642W

#2 GSD7S72T-595WT

23.0% 595W

#3 TP637LG10B

22.9% 637W

#4 GSD7S72T-590WT

22.8% 590W

#5 TP631LG10B

22.7% 631W

Pros & Cons

Strengths

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

Considerations

Limited adoption of latest cell technologies (TOPCon/HJT)

Efficiency Distribution

12

20-21%

31.6%

14

21-22%

36.8%

10

22-23%

26.3%

2

23%+

5.3%

Frequently Asked Questions

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.

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.

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.

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.

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.

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.

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.

The Verdict

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.