--- title: "Tata Power Solar TP540HG10B-545 vs Tata Power Solar TP545HG10TB - Solar Panel Comparison | ComparePV" description: "Compare Tata Power Solar TP540HG10B-545 vs Tata Power Solar TP545HG10TB 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-tp540hg10b-545/tata-power-solar-tp545hg10tb" updated: 2026-09-11 --- # Tata Power Solar TP540HG10B-545 vs Tata Power Solar TP545HG10TB 6 differences, and they point both ways The largest is performance warranty: 5 yrs longer. 13 of 19 comparable parameters are identical. ## The two panels | Attribute | A | B | | --- | --- | --- | | Panel | [Tata Power Solar TP540HG10B-545](https://comparepv.com/panel/tata-power-solar-tp540hg10b-545) | [Tata Power Solar TP545HG10TB](https://comparepv.com/panel/tata-power-solar-tp545hg10tb) | | Manufacturer | Tata Power Solar | Tata Power Solar | | Power | 545 Wp | 545 Wp | | Efficiency | 21.10 % | 21.10 % | | Technology | PERC | PERC | ## Where they differ Ranked by how much the difference matters, not by datasheet order. | Parameter | TP540HG10B-545 | TP545HG10TB | Difference | | --- | --- | --- | --- | | Performance warranty | 30 yrs | 25 yrs | +5 yrs for TP540HG10B-545 | | Weight | 33.0 kg | 29.0 kg | -4.0 kg for TP545HG10TB | | Weight per kWp | 60.6 kg/kWp | 53.2 kg/kWp | -7.3 kg/kWp for TP545HG10TB | | Annual degradation | 0.60 %/yr | 0.72 %/yr | -0.12 %/yr for TP540HG10B-545 | | Product warranty | 12 yrs | 10 yrs | +2 yrs for TP540HG10B-545 | | Temperature coefficient | -0.370 %/°C | -0.360 %/°C | +0.010 %/°C for TP545HG10TB | ## Every compared parameter | Parameter | TP540HG10B-545 | TP545HG10TB | | --- | --- | --- | | Rated power | 545 Wp | 545 Wp | | Module efficiency | 21.10 % | 21.10 % | | Power density | 211.0 Wp/m² | 211.0 Wp/m² | | Open-circuit voltage | 49.60 V | 49.60 V | | Voltage at max power | 42.55 V | 42.55 V | | Short-circuit current | 13.32 A | 13.32 A | | Current at max power | 12.81 A | 12.81 A | | Temperature coefficient | -0.370 %/°C | -0.360 %/°C | | Dimensions | 2278x1134x35 mm | 2278x1134x35 mm | | Module area | 2.583 m² | 2.583 m² | | Weight | 33.0 kg | 29.0 kg | | Weight per kWp | 60.6 kg/kWp | 53.2 kg/kWp | | Product warranty | 12 yrs | 10 yrs | | Performance warranty | 30 yrs | 25 yrs | | Annual degradation | 0.60 %/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 - **Cumulative output, TP540HG10B-545:** 17,423 kWh - **Cumulative output, TP545HG10TB:** 17,081 kWh - **Gap:** 342 kWh ## Output when hot | Condition | Cell temperature | TP540HG10B-545 | TP545HG10TB | Retained | | --- | --- | --- | --- | --- | | Standard test conditions | 25 °C | 545 W | 545 W | 100.0% of rated power | | Cool, bright day | 40 °C | 515 W | 516 W | 94.5% of rated power | | Typical summer roof | 55 °C | 485 W | 486 W | 88.9% of rated power | | Hot roof | 70 °C | 454 W | 457 W | 83.3% of rated power | ## Against the whole database | Measure | TP540HG10B-545 | TP545HG10TB | Out of | Note | | --- | --- | --- | --- | --- | | Efficiency | #9,297 | #9,297 | 14,005 | Tied - the same position in the database | | Power density | #9,312 | #9,312 | 14,005 | Tied - the same position in the database | | Heat behaviour | #13,081 | #12,345 | 14,005 | TP545HG10TB leads by 736 places | | Weight | #12,489 | #7,047 | 14,005 | TP545HG10TB leads by 5,442 places | | Warranty | #21 | #9,798 | 14,005 | TP540HG10B-545 leads by 9,777 places | | Overall | #7,457 | #8,965 | 14,005 | TP540HG10B-545 leads by 1,508 places | ## Questions ### Which panel is better: Tata Power Solar TP540HG10B-545 or Tata Power Solar TP545HG10TB? According to our database: **Tata Power Solar TP545HG10TB** tolerates heat better (temp coeff **-0.360%/°C** vs **-0.370%/°C**). See the full spec comparison and 30-year energy simulation above for a complete picture. ### What is the efficiency of Tata Power Solar TP540HG10B-545 and Tata Power Solar TP545HG10TB? **Tata Power Solar TP540HG10B-545** has a module efficiency of **21.10%**, while **Tata Power Solar TP545HG10TB** is **21.10%**. Higher efficiency means more electricity from the same roof area - useful when space is limited. ### What cell technology does Tata Power Solar TP540HG10B-545 use vs Tata Power Solar TP545HG10TB? **Tata Power Solar TP540HG10B-545** uses **PERC** cells; **Tata Power Solar TP545HG10TB** 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 TP540HG10B-545 and Tata Power Solar TP545HG10TB? **Tata Power Solar TP540HG10B-545** has a **30 years** power warranty; **Tata Power Solar TP545HG10TB** 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 TP540HG10B-545 and Tata Power Solar TP545HG10TB bifacial panels? Both **Tata Power Solar TP540HG10B-545** and **Tata Power Solar TP545HG10TB** 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 TP540HG10B-545 vs Tata Power Solar TP590LG10B](https://comparepv.com/compare/tata-power-solar-tp540hg10b-545/tata-power-solar-tp590lg10b) - 7 differences, the largest is rated power - [Tata Power Solar TP540HG10B-545 vs Tata Power Solar TP580LG10B](https://comparepv.com/compare/tata-power-solar-tp540hg10b-545/tata-power-solar-tp580lg10b) - 8 differences, the largest is rated power - [Tata Power Solar TP540HG10B-545 vs Tata Power Solar TP570LG10B](https://comparepv.com/compare/tata-power-solar-tp540hg10b-545/tata-power-solar-tp570lg10b) - 10 differences, the largest is module efficiency - [Tata Power Solar TP540HG10B-545 vs Tata Power Solar TP550HG10TB](https://comparepv.com/compare/tata-power-solar-tp540hg10b-545/tata-power-solar-tp550hg10tb) - 6 differences, the largest is performance warranty - [Tata Power Solar TP540HG10B-545 vs Tata Power Solar TP540HG10B-550](https://comparepv.com/compare/tata-power-solar-tp540hg10b-545/tata-power-solar-tp540hg10b-550) - The same specification on paper - [Tata Power Solar TP540HG10B-545 vs Tata Power Solar TP540HG10B-540](https://comparepv.com/compare/tata-power-solar-tp540hg10b-545/tata-power-solar-tp540hg10b-540) - One difference: module efficiency --- Source: https://comparepv.com/compare/tata-power-solar-tp540hg10b-545/tata-power-solar-tp545hg10tb 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.