--- title: "Tata Power Solar TP540HG10TB vs Tata Power Solar TP550HG10TB - Solar Panel Comparison | ComparePV" description: "Compare Tata Power Solar TP540HG10TB vs Tata Power Solar TP550HG10TB side by side: what actually differs, output when it is hot, thirty-year production, and the full specification." source: "https://comparepv.com/compare/tata-power-solar-tp540hg10tb/tata-power-solar-tp550hg10tb" updated: 2026-09-11 --- # Tata Power Solar TP540HG10TB vs Tata Power Solar TP550HG10TB TP550HG10TB leads on the differences that matter The largest is module efficiency: 0.39 pp more efficient. 16 of 19 comparable parameters are identical. ## The two panels | Attribute | A | B | | --- | --- | --- | | Panel | [Tata Power Solar TP540HG10TB](https://comparepv.com/panel/tata-power-solar-tp540hg10tb) | [Tata Power Solar TP550HG10TB](https://comparepv.com/panel/tata-power-solar-tp550hg10tb) | | Manufacturer | Tata Power Solar | Tata Power Solar | | Power | 540 Wp | 550 Wp | | Efficiency | 20.90 % | 21.29 % | | Technology | PERC | PERC | ## Where they differ Ranked by how much the difference matters, not by datasheet order. | Parameter | TP540HG10TB | TP550HG10TB | Difference | | --- | --- | --- | --- | | Module efficiency | 20.90 % | 21.29 % | +0.39 pp for TP550HG10TB | | Power density | 209.0 Wp/m² | 212.9 Wp/m² | +3.9 Wp/m² for TP550HG10TB | | Rated power | 540 Wp | 550 Wp | +10 W for TP550HG10TB | ## Every compared parameter | Parameter | TP540HG10TB | TP550HG10TB | | --- | --- | --- | | Rated power | 540 Wp | 550 Wp | | Module efficiency | 20.90 % | 21.29 % | | Power density | 209.0 Wp/m² | 212.9 Wp/m² | | Open-circuit voltage | 49.50 V | 49.75 V | | Voltage at max power | 42.45 V | 42.62 V | | Short-circuit current | 13.23 A | 13.42 A | | Current at max power | 12.72 A | 12.90 A | | Temperature coefficient | -0.360 %/°C | -0.360 %/°C | | Dimensions | 2278x1134x35 mm | 2278x1134x35 mm | | Module area | 2.583 m² | 2.583 m² | | Weight | 29.0 kg | 29.0 kg | | Weight per kWp | 53.7 kg/kWp | 52.7 kg/kWp | | Product warranty | 10 yrs | 10 yrs | | Performance warranty | 25 yrs | 25 yrs | | Annual degradation | 0.72 %/yr | 0.72 %/yr | | Cell technology | PERC | PERC | | Cell type | Monocrystalline | Monocrystalline | | Cell count | 144 | 144 | | Bifacial | Yes | Yes | ## Thirty-year yield Each panel's own declared degradation curve, at 1,200 kWh/kWp a year Same temp coeff. for both panels (-0.360 %/°C), so a warmer roof scales both curves by the same factor: the totals fall together and neither panel gains on the other. - **Cumulative output, TP540HG10TB:** 16,924 kWh - **Cumulative output, TP550HG10TB:** 17,238 kWh - **Gap:** 314 kWh ## Output when hot | Condition | Cell temperature | TP540HG10TB | TP550HG10TB | Retained | | --- | --- | --- | --- | --- | | Standard test conditions | 25 °C | 540 W | 550 W | 100.0% of rated power | | Cool, bright day | 40 °C | 511 W | 520 W | 94.6% of rated power | | Typical summer roof | 55 °C | 482 W | 491 W | 89.2% of rated power | | Hot roof | 70 °C | 453 W | 461 W | 83.8% of rated power | ## Against the whole database | Measure | TP540HG10TB | TP550HG10TB | Out of | Note | | --- | --- | --- | --- | --- | | Efficiency | #10,072 | #8,708 | 14,005 | TP550HG10TB leads by 1,364 places | | Power density | #10,100 | #8,497 | 14,005 | TP550HG10TB leads by 1,603 places | | Heat behaviour | #12,345 | #12,345 | 14,005 | Tied - the same position in the database | | Weight | #7,707 | #6,373 | 14,005 | TP550HG10TB leads by 1,334 places | | Warranty | #9,798 | #9,798 | 14,005 | Tied - the same position in the database | | Overall | #9,325 | #8,571 | 14,005 | TP550HG10TB leads by 754 places | ## Questions ### Which panel is better: Tata Power Solar TP540HG10TB or Tata Power Solar TP550HG10TB? According to our database: **Tata Power Solar TP550HG10TB** has higher module efficiency (**21.29%** vs **20.90%**). See the full spec comparison and 30-year energy simulation above for a complete picture. ### What is the efficiency of Tata Power Solar TP540HG10TB and Tata Power Solar TP550HG10TB? **Tata Power Solar TP540HG10TB** has a module efficiency of **20.90%**, while **Tata Power Solar TP550HG10TB** is **21.29%**. Higher efficiency means more electricity from the same roof area - useful when space is limited. ### What cell technology does Tata Power Solar TP540HG10TB use vs Tata Power Solar TP550HG10TB? **Tata Power Solar TP540HG10TB** uses **PERC** cells; **Tata Power Solar TP550HG10TB** uses **PERC**. Modern **n-type** technologies (**TOPCon**, **HJT**, BC) typically deliver higher efficiency and lower degradation compared to older **PERC** (p-type) cells. ### What is the warranty on Tata Power Solar TP540HG10TB and Tata Power Solar TP550HG10TB? **Tata Power Solar TP540HG10TB** has a **25 years** power warranty; **Tata Power Solar TP550HG10TB** has a **25 years** power warranty. The power warranty guarantees a minimum percentage of rated output at the end of the warranty period (typically 80**-87%**). Product (materials) warranties are usually shorter. ### Are Tata Power Solar TP540HG10TB and Tata Power Solar TP550HG10TB bifacial panels? Both **Tata Power Solar TP540HG10TB** and **Tata Power Solar TP550HG10TB** are bifacial - they capture reflected light from the ground, which can add 5**-15%** more annual energy on ground-mount or elevated rooftop installations with a light surface beneath. ## Related comparisons - [Tata Power Solar TP540HG10TB vs Tata Power Solar TP545HG10TB](https://comparepv.com/compare/tata-power-solar-tp540hg10tb/tata-power-solar-tp545hg10tb) - One difference: module efficiency - [Tata Power Solar TP540HG10TB vs Tata Power Solar TP535HG10TB](https://comparepv.com/compare/tata-power-solar-tp540hg10tb/tata-power-solar-tp535hg10tb) - The same specification on paper - [Tata Power Solar TP540HG10TB vs Tata Power Solar TP530HG10TB](https://comparepv.com/compare/tata-power-solar-tp540hg10tb/tata-power-solar-tp530hg10tb) - 3 differences, the largest is module efficiency - [Tata Power Solar TP540HG10TB vs Tata Power Solar TP642LG10B](https://comparepv.com/compare/tata-power-solar-tp540hg10tb/tata-power-solar-tp642lg10b) - 16 differences, the largest is module efficiency - [Tata Power Solar TP540HG10TB vs Tata Power Solar TP637LG10B](https://comparepv.com/compare/tata-power-solar-tp540hg10tb/tata-power-solar-tp637lg10b) - 16 differences, the largest is module efficiency - [Tata Power Solar TP540HG10TB vs Tata Power Solar TP631LG10B](https://comparepv.com/compare/tata-power-solar-tp540hg10tb/tata-power-solar-tp631lg10b) - 16 differences, the largest is module efficiency --- Source: https://comparepv.com/compare/tata-power-solar-tp540hg10tb/tata-power-solar-tp550hg10tb Not in this file, on the page: the thirty-year yield curve year by year at a cell temperature you pick and a written summary generated on request.