--- title: "Emmvee E490HCBG132 vs Emmvee E500HCBG132 - Solar Panel Comparison | ComparePV" description: "Compare Emmvee E490HCBG132 vs Emmvee E500HCBG132 side by side: what actually differs, output when it is hot, thirty-year production, and the full specification." source: "https://comparepv.com/compare/emmvee-e490hcbg132/emmvee-e500hcbg132" updated: 2026-09-11 --- # Emmvee E490HCBG132 vs Emmvee E500HCBG132 E500HCBG132 leads on the differences that matter The largest is module efficiency: 0.42 pp more efficient. 16 of 19 comparable parameters are identical. ## The two panels | Attribute | A | B | | --- | --- | --- | | Panel | [Emmvee E490HCBG132](https://comparepv.com/panel/emmvee-e490hcbg132) | [Emmvee E500HCBG132](https://comparepv.com/panel/emmvee-e500hcbg132) | | Manufacturer | Emmvee | Emmvee | | Power | 490 Wp | 500 Wp | | Efficiency | 20.61 % | 21.03 % | | Technology | PERC | PERC | ## Where they differ Ranked by how much the difference matters, not by datasheet order. | Parameter | E490HCBG132 | E500HCBG132 | Difference | | --- | --- | --- | --- | | Module efficiency | 20.61 % | 21.03 % | +0.42 pp for E500HCBG132 | | Power density | 206.1 Wp/m² | 210.3 Wp/m² | +4.2 Wp/m² for E500HCBG132 | | Rated power | 490 Wp | 500 Wp | +10 W for E500HCBG132 | ## Every compared parameter | Parameter | E490HCBG132 | E500HCBG132 | | --- | --- | --- | | Rated power | 490 Wp | 500 Wp | | Module efficiency | 20.61 % | 21.03 % | | Power density | 206.1 Wp/m² | 210.3 Wp/m² | | Open-circuit voltage | 44.65 V | 44.92 V | | Voltage at max power | 38.94 V | 39.27 V | | Short-circuit current | 13.09 A | 13.24 A | | Current at max power | 12.59 A | 12.74 A | | Temperature coefficient | -0.350 %/°C | -0.350 %/°C | | Dimensions | 2097x1134x35 mm | 2097x1134x35 mm | | Module area | 2.378 m² | 2.378 m² | | Weight | 28.0 kg | 28.0 kg | | Weight per kWp | 57.1 kg/kWp | 56.0 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 | 132 | 132 | | 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, E490HCBG132:** 16,136 kWh - **Cumulative output, E500HCBG132:** 16,466 kWh - **Gap:** 330 kWh ## Output when hot | Condition | Cell temperature | E490HCBG132 | E500HCBG132 | Retained | | --- | --- | --- | --- | --- | | Standard test conditions | 25 °C | 490 W | 500 W | 100.0% of rated power | | Cool, bright day | 40 °C | 464 W | 474 W | 94.8% of rated power | | Typical summer roof | 55 °C | 439 W | 448 W | 89.5% of rated power | | Hot roof | 70 °C | 413 W | 421 W | 84.2% of rated power | ## Against the whole database | Measure | E490HCBG132 | E500HCBG132 | Out of | Note | | --- | --- | --- | --- | --- | | Efficiency | #11,082 | #9,671 | 14,005 | E500HCBG132 leads by 1,411 places | | Power density | #11,097 | #9,664 | 14,005 | E500HCBG132 leads by 1,433 places | | Heat behaviour | #10,419 | #10,419 | 14,005 | Tied - the same position in the database | | Weight | #11,083 | #10,317 | 14,005 | E500HCBG132 leads by 766 places | | Warranty | #21 | #21 | 14,005 | Tied - the same position in the database | | Overall | #9,797 | #9,106 | 14,005 | E500HCBG132 leads by 691 places | ## Questions ### Which panel is better: Emmvee E490HCBG132 or Emmvee E500HCBG132? According to our database: **Emmvee E500HCBG132** has higher module efficiency (**21.03%** vs **20.61%**). See the full spec comparison and 30-year energy simulation above for a complete picture. ### What is the efficiency of Emmvee E490HCBG132 and Emmvee E500HCBG132? **Emmvee E490HCBG132** has a module efficiency of **20.61%**, while **Emmvee E500HCBG132** is **21.03%**. Higher efficiency means more electricity from the same roof area - useful when space is limited. ### What cell technology does Emmvee E490HCBG132 use vs Emmvee E500HCBG132? **Emmvee E490HCBG132** uses **PERC** cells; **Emmvee E500HCBG132** 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 E490HCBG132 and Emmvee E500HCBG132? **Emmvee E490HCBG132** has a **30 years** power warranty; **Emmvee E500HCBG132** 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 E490HCBG132 and Emmvee E500HCBG132 bifacial panels? Both **Emmvee E490HCBG132** and **Emmvee E500HCBG132** 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 E490HCBG132 vs Emmvee E550HCBG144](https://comparepv.com/compare/emmvee-e490hcbg132/emmvee-e550hcbg144) - 12 differences, the largest is module efficiency - [Emmvee E490HCBG132 vs Emmvee E545HCBG144](https://comparepv.com/compare/emmvee-e490hcbg132/emmvee-e545hcbg144) - 12 differences, the largest is rated power - [Emmvee E490HCBG132 vs Emmvee E540HCBG144](https://comparepv.com/compare/emmvee-e490hcbg132/emmvee-e540hcbg144) - 9 differences, the largest is rated power - [Emmvee E490HCBG132 vs Emmvee E535HCBG144](https://comparepv.com/compare/emmvee-e490hcbg132/emmvee-e535hcbg144) - 8 differences, the largest is rated power - [Emmvee E490HCBG132 vs Emmvee E530HCBG144](https://comparepv.com/compare/emmvee-e490hcbg132/emmvee-e530hcbg144) - 7 differences, the largest is rated power - [Emmvee E490HCBG132 vs Emmvee E495HCBG132](https://comparepv.com/compare/emmvee-e490hcbg132/emmvee-e495hcbg132) - One difference: module efficiency --- Source: https://comparepv.com/compare/emmvee-e490hcbg132/emmvee-e500hcbg132 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.