--- title: "Emmvee E535HCBG144 vs Emmvee E550HCBG144 - Solar Panel Comparison | ComparePV" description: "Compare Emmvee E535HCBG144 vs Emmvee E550HCBG144 side by side: what actually differs, output when it is hot, thirty-year production, and the full specification." source: "https://comparepv.com/compare/emmvee-e535hcbg144/emmvee-e550hcbg144" updated: 2026-09-11 --- # Emmvee E535HCBG144 vs Emmvee E550HCBG144 E550HCBG144 leads on the differences that matter The largest is module efficiency: 0.58 pp more efficient. 16 of 19 comparable parameters are identical. ## The two panels | Attribute | A | B | | --- | --- | --- | | Panel | [Emmvee E535HCBG144](https://comparepv.com/panel/emmvee-e535hcbg144) | [Emmvee E550HCBG144](https://comparepv.com/panel/emmvee-e550hcbg144) | | Manufacturer | Emmvee | Emmvee | | Power | 535 Wp | 550 Wp | | Efficiency | 20.71 % | 21.29 % | | Technology | PERC | PERC | ## Where they differ Ranked by how much the difference matters, not by datasheet order. | Parameter | E535HCBG144 | E550HCBG144 | Difference | | --- | --- | --- | --- | | Module efficiency | 20.71 % | 21.29 % | +0.58 pp for E550HCBG144 | | Power density | 207.1 Wp/m² | 212.9 Wp/m² | +5.8 Wp/m² for E550HCBG144 | | Rated power | 535 Wp | 550 Wp | +15 W for E550HCBG144 | ## Every compared parameter | Parameter | E535HCBG144 | E550HCBG144 | | --- | --- | --- | | Rated power | 535 Wp | 550 Wp | | Module efficiency | 20.71 % | 21.29 % | | Power density | 207.1 Wp/m² | 212.9 Wp/m² | | Open-circuit voltage | 49.35 V | 49.90 V | | Voltage at max power | 41.32 V | 41.62 V | | Short-circuit current | 13.59 A | 14.01 A | | Current at max power | 12.95 A | 13.22 A | | Temperature coefficient | -0.350 %/°C | -0.350 %/°C | | Dimensions | 2278x1134x35 mm | 2278x1134x35 mm | | Module area | 2.583 m² | 2.583 m² | | Weight | 30.0 kg | 30.0 kg | | Weight per kWp | 56.1 kg/kWp | 54.5 kg/kWp | | Product warranty | 12 yrs | 12 yrs | | Performance warranty | 30 yrs | 30 yrs | | Annual degradation | 0.45 %/yr | 0.45 %/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 (-0.350 %/°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, E535HCBG144:** 17,618 kWh - **Cumulative output, E550HCBG144:** 18,112 kWh - **Gap:** 494 kWh ## Output when hot | Condition | Cell temperature | E535HCBG144 | E550HCBG144 | Retained | | --- | --- | --- | --- | --- | | Standard test conditions | 25 °C | 535 W | 550 W | 100.0% of rated power | | Cool, bright day | 40 °C | 507 W | 521 W | 94.8% of rated power | | Typical summer roof | 55 °C | 479 W | 492 W | 89.5% of rated power | | Hot roof | 70 °C | 451 W | 463 W | 84.2% of rated power | ## Against the whole database | Measure | E535HCBG144 | E550HCBG144 | Out of | Note | | --- | --- | --- | --- | --- | | Efficiency | #10,721 | #8,708 | 14,005 | E550HCBG144 leads by 2,013 places | | Power density | #10,764 | #8,497 | 14,005 | E550HCBG144 leads by 2,267 places | | Heat behaviour | #10,419 | #10,419 | 14,005 | Tied - the same position in the database | | Weight | #10,369 | #8,867 | 14,005 | E550HCBG144 leads by 1,502 places | | Warranty | #21 | #21 | 14,005 | Tied - the same position in the database | | Overall | #8,253 | #6,944 | 14,005 | E550HCBG144 leads by 1,309 places | ## Questions ### Which panel is better: Emmvee E535HCBG144 or Emmvee E550HCBG144? According to our database: **Emmvee E550HCBG144** has higher module efficiency (**21.29%** vs **20.71%**). See the full spec comparison and 30-year energy simulation above for a complete picture. ### What is the efficiency of Emmvee E535HCBG144 and Emmvee E550HCBG144? **Emmvee E535HCBG144** has a module efficiency of **20.71%**, while **Emmvee E550HCBG144** is **21.29%**. Higher efficiency means more electricity from the same roof area - useful when space is limited. ### What cell technology does Emmvee E535HCBG144 use vs Emmvee E550HCBG144? **Emmvee E535HCBG144** uses **PERC** cells; **Emmvee E550HCBG144** 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 Emmvee E535HCBG144 and Emmvee E550HCBG144? **Emmvee E535HCBG144** has a **30 years** power warranty; **Emmvee E550HCBG144** has a **30 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 Emmvee E535HCBG144 and Emmvee E550HCBG144 bifacial panels? Both **Emmvee E535HCBG144** and **Emmvee E550HCBG144** 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 - [Emmvee E535HCBG144 vs Emmvee E545HCBG144](https://comparepv.com/compare/emmvee-e535hcbg144/emmvee-e545hcbg144) - 3 differences, the largest is module efficiency - [Emmvee E535HCBG144 vs Emmvee E540HCBG144](https://comparepv.com/compare/emmvee-e535hcbg144/emmvee-e540hcbg144) - The same specification on paper - [Emmvee E535HCBG144 vs Emmvee E530HCBG144](https://comparepv.com/compare/emmvee-e535hcbg144/emmvee-e530hcbg144) - The same specification on paper - [Emmvee E535HCBG144 vs Emmvee E500HCBG132](https://comparepv.com/compare/emmvee-e535hcbg144/emmvee-e500hcbg132) - 9 differences, the largest is rated power - [Emmvee E535HCBG144 vs Emmvee E495HCBG132](https://comparepv.com/compare/emmvee-e535hcbg144/emmvee-e495hcbg132) - 7 differences, the largest is rated power - [Emmvee E535HCBG144 vs Emmvee E490HCBG132](https://comparepv.com/compare/emmvee-e535hcbg144/emmvee-e490hcbg132) - 8 differences, the largest is rated power --- Source: https://comparepv.com/compare/emmvee-e535hcbg144/emmvee-e550hcbg144 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.