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Adani Solar vs Tata Power Solar - solar panel manufacturer comparison

Adani Solar
India Founded 2015 Tier 1
Read the Adani Solar review
VS
Tata Power Solar
India Founded 1989 Tier 1
Read the Tata Power Solar review
At a glance

Adani Solar has the broader catalog (48 vs 38 models). Adani Solar leads on peak efficiency at 23.71%. Tata Power Solar leans bifacial (100% of lineup).

Both catalogues are read from the manufacturers' own datasheets. A brand is not scored against the market here, only against the other brand on this page.

Panel models
48 38
Highest power
650 Wp 642 Wp
Best efficiency
23.7% 23.1%
Average efficiency
20.7% 21.5%
Bifacial share
75% 100%
Average warranty
29 yrs 28 yrs
01

The two companies

Company facts, not datasheet figures
Adani Solar

Adani Solar is a fully integrated, high-efficiency solar panel manufacturer and is part of the Adani Group. They are building a comprehensive solar manufacturing ecosystem, producing everything from metallurgical grade silicon to solar modules. The company is committed to advancing India's renewable energy...

Founded
2015
Headquarters
Ahmedabad, India
Annual capacity
4 GW/year
Employees
3500+
Tier 1 bankable
Yes
Tata Power Solar

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.

Founded
1989
Headquarters
Mumbai, Maharashtra, India
Annual capacity
4.3 GW/year
Employees
1,245
Tier 1 bankable
Yes
02

Catalogue against catalogue

Averages over every model in the database
Metric Adani Solar Tata Power Solar
Catalog & Power
Panel Models 48+10 38
Max Power 650 W+8 W 642 W
Avg Power 539 W 580 W+41 W
Efficiency
Max Efficiency 23.71%+0.66 pp 23.05%
Avg Efficiency 20.67% 21.52%+0.85 pp
Reliability & Warranty
Avg Temp Coefficient -0.345%/°C+0.009 -0.354%/°C
Bifacial Share 36 (75%) 38 (100%)+25 pp
Avg Warranty 29.3 yrs+0.8 yr 28.4 yrs

An average over a catalogue describes the range a manufacturer publishes, not the module you would buy. A brand with two flagship panels and eighty older ones averages worse than one that has retired its back catalogue.

03

What each of them builds

Cell technology across the market
Efficiency spread
Share of each catalogue in every efficiency band

Adani Solar skews to higher efficiency: 8% of lineup is 23%+

Power spread
Share of each catalogue in every power band

Adani Solar offers more 600W+ panels (38% of lineup)

Adani Solar cell technology
Share of their models by cell architecture

Dominant cell tech: <strong>PERC</strong> (54%)

Tata Power Solar cell technology
Share of their models by cell architecture

Dominant cell tech: <strong>PERC</strong> (82%)

04

The flagships

Highest-power models from each brand
05

Written summary

Checking cache...

Adani Solar is the solar manufacturing arm of India's Adani Group, headquartered in Ahmedabad and operating its primary integrated production complex at Mundra, Gujarat. The company scaled aggressively in recent years, reaching approximately 4 GW of cell and module capacity with a stated target of 10 GW by mid-2026, covering ingots, wafers, cells, and modules under one roof. It holds Tier 1 status with BloombergNEF and has been rated a Top Performer by Kiwa PVEL for seven consecutive years. Tata Power Solar was established in 1989 as part of the diversified Tata Power group and operates manufacturing in Tamil Nadu, where its unit TP Solar Ltd. surpassed 4 GW of cumulative module output as of mid-2025, per pv-magazine. It likewise carries BNEF Tier 1 recognition. With more than three decades of project execution history and the institutional weight of the Tata Group behind it, Tata Power Solar carries the stronger legacy presence in the Indian market.

Adani Solar's catalogue spans Mono PERC and N-type TOPCon modules in the 535-660 W range, organized under the "Shine" (PERC) and "Elan" (TOPCon bifacial) families. Its fully integrated Mundra supply chain confers a structural cost edge that suits large utility-scale and industrial ground-mount procurement where price-per-watt is decisive. Tata Power Solar covers similar PERC and TOPCon territory, with panel wattages running from approximately 530 W to 642 W, and offers an end-to-end EPC and after-sales service network built over decades - making it the more natural choice for residential rooftops and smaller commercial installs where long-term service reliability and brand trust carry real weight.

For buyers choosing between the two in 2025-2026, the decision hinges more on project type than on raw panel performance. Adani Solar is the stronger default for large-scale procurement, where integrated manufacturing translates into competitive pricing. Tata Power Solar is the more reassuring pick for residential and smaller commercial buyers who value a proven national service network and Tata's track record for after-sales accountability. Both are credibly Tier 1 bankable and technically comparable at this level of the Indian market.

Generated by Claude Sonnet · 2026-07-01

06

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Something missing from a catalogue? Both lists are built from the datasheets in the database. If a model is absent, it has not been ingested yet.

Shop prices: See 2 Adani Solar offers

Comparisons are computed from manufacturer datasheets held in the ComparePV database and may not reflect a brand's complete current lineup. Nothing on this page is paid placement.