--- title: "Emmvee E530HCM144-B vs Emmvee E540HCM144-B - Solar Panel Comparison | ComparePV" description: "Compare Emmvee E530HCM144-B vs Emmvee E540HCM144-B side by side: what actually differs, output when it is hot, thirty-year production, and the full specification." source: "https://comparepv.com/compare/emmvee-e530hcm144-b/emmvee-e540hcm144-b" image: "https://comparepv.com/og/compare/panels/emmvee-e530hcm144-b/emmvee-e540hcm144-b.png" updated: 2026-09-11 --- # Emmvee E530HCM144-B vs Emmvee E540HCM144-B E540HCM144-B leads on the differences that matter The largest is module efficiency: 0.38 pp more efficient. 16 of 19 comparable parameters are identical. ## The two panels | Attribute | A | B | | --- | --- | --- | | Panel | [Emmvee E530HCM144-B](https://comparepv.com/panel/emmvee-e530hcm144-b) | [Emmvee E540HCM144-B](https://comparepv.com/panel/emmvee-e540hcm144-b) | | Manufacturer | Emmvee | Emmvee | | Power | 530 Wp | 540 Wp | | Efficiency | 20.52 % | 20.90 % | | Technology | PERC | PERC | ## Where they differ Ranked by how much the difference matters, not by datasheet order. | Parameter | E530HCM144-B | E540HCM144-B | Difference | | --- | --- | --- | --- | | Module efficiency | 20.52 % | 20.90 % | +0.38 pp for E540HCM144-B | | Power density | 205.2 Wp/m² | 209.0 Wp/m² | +3.9 Wp/m² for E540HCM144-B | | Rated power | 530 Wp | 540 Wp | +10 W for E540HCM144-B | ## Every compared parameter | Parameter | E530HCM144-B | E540HCM144-B | | --- | --- | --- | | Rated power | 530 Wp | 540 Wp | | Module efficiency | 20.52 % | 20.90 % | | Power density | 205.2 Wp/m² | 209.0 Wp/m² | | Open-circuit voltage | 49.20 V | 49.50 V | | Voltage at max power | 41.10 V | 41.54 V | | Short-circuit current | 13.56 A | 13.62 A | | Current at max power | 12.90 A | 13.00 A | | Temperature coefficient | -0.350 %/°C | -0.350 %/°C | | Dimensions | 2278x1134x35 mm | 2278x1134x35 mm | | Module area | 2.583 m² | 2.583 m² | | Weight | 26.0 kg | 26.0 kg | | Weight per kWp | 49.1 kg/kWp | 48.1 kg/kWp | | Product warranty | 12 yrs | 12 yrs | | Performance warranty | 25 yrs | 25 yrs | | Annual degradation | 0.55 %/yr | 0.55 %/yr | | Cell technology | PERC | PERC | | Cell type | Monocrystalline | Monocrystalline | | Cell count | 144 | 144 | | Bifacial | No | No | ## 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, E530HCM144-B:** 17,177 kWh - **Cumulative output, E540HCM144-B:** 17,501 kWh - **Gap:** 324 kWh ## Output when hot | Condition | Cell temperature | E530HCM144-B | E540HCM144-B | Retained | | --- | --- | --- | --- | --- | | Standard test conditions | 25 °C | 530 W | 540 W | 100.0% of rated power | | Cool, bright day | 40 °C | 502 W | 512 W | 94.8% of rated power | | Typical summer roof | 55 °C | 474 W | 483 W | 89.5% of rated power | | Hot roof | 70 °C | 447 W | 455 W | 84.2% of rated power | ## Against the whole database | Measure | E530HCM144-B | E540HCM144-B | Out of | Note | | --- | --- | --- | --- | --- | | Efficiency | #11,325 | #10,148 | 14,129 | E540HCM144-B leads by 1,177 places | | Power density | #11,336 | #10,176 | 14,129 | E540HCM144-B leads by 1,160 places | | Heat behaviour | #10,489 | #10,489 | 14,129 | Tied - the same position in the database | | Weight | #2,704 | #2,076 | 14,129 | E540HCM144-B leads by 628 places | | Warranty | #9,912 | #9,912 | 14,129 | Tied - the same position in the database | | Overall | #9,576 | #8,899 | 14,129 | E540HCM144-B leads by 677 places | ## Questions ### Which panel is better: Emmvee E530HCM144-B or Emmvee E540HCM144-B? According to our database: **Emmvee E540HCM144-B** has higher module efficiency (**20.90%** vs **20.52%**). See the full spec comparison and 30-year energy simulation above for a complete picture. ### What is the efficiency of Emmvee E530HCM144-B and Emmvee E540HCM144-B? **Emmvee E530HCM144-B** has a module efficiency of **20.52%**, while **Emmvee E540HCM144-B** is **20.90%**. Higher efficiency means more electricity from the same roof area - useful when space is limited. ### What cell technology does Emmvee E530HCM144-B use vs Emmvee E540HCM144-B? **Emmvee E530HCM144-B** uses **PERC** cells; **Emmvee E540HCM144-B** 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 E530HCM144-B and Emmvee E540HCM144-B? **Emmvee E530HCM144-B** has a **25 years** power warranty; **Emmvee E540HCM144-B** 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. ## Related comparisons - [Emmvee E530HCM144-B vs Emmvee E535HCM144-B](https://comparepv.com/compare/emmvee-e530hcm144-b/emmvee-e535hcm144-b) - The same specification on paper - [Emmvee E530HCM144-B vs Emmvee E500HCM132-B](https://comparepv.com/compare/emmvee-e530hcm144-b/emmvee-e500hcm132-b) - 9 differences, the largest is module efficiency - [Emmvee E530HCM144-B vs Emmvee E495HCM132-B](https://comparepv.com/compare/emmvee-e530hcm144-b/emmvee-e495hcm132-b) - 8 differences, the largest is rated power - [Emmvee E530HCM144-B vs Emmvee E490HCM132-B](https://comparepv.com/compare/emmvee-e530hcm144-b/emmvee-e490hcm132-b) - 7 differences, the largest is rated power - [Emmvee E530HCM144-B vs Emmvee E485HCM132-B](https://comparepv.com/compare/emmvee-e530hcm144-b/emmvee-e485hcm132-b) - 9 differences, the largest is rated power - [Emmvee E530HCM144-B vs Emmvee E450HCM120-B](https://comparepv.com/compare/emmvee-e530hcm144-b/emmvee-e450hcm120-b) - 9 differences, the largest is rated power --- Source: https://comparepv.com/compare/emmvee-e530hcm144-b/emmvee-e540hcm144-b 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.