--- title: "Emmvee E705HCBG132-T vs Emmvee E720HCBG132-T - Solar Panel Comparison | ComparePV" description: "Compare Emmvee E705HCBG132-T vs Emmvee E720HCBG132-T side by side: what actually differs, output when it is hot, thirty-year production, and the full specification." source: "https://comparepv.com/compare/emmvee-e705hcbg132-t/emmvee-e720hcbg132-t" updated: 2026-09-11 --- # Emmvee E705HCBG132-T vs Emmvee E720HCBG132-T E720HCBG132-T leads on the differences that matter The largest is module efficiency: 0.48 pp more efficient. 16 of 19 comparable parameters are identical. ## The two panels | Attribute | A | B | | --- | --- | --- | | Panel | [Emmvee E705HCBG132-T](https://comparepv.com/panel/emmvee-e705hcbg132-t) | [Emmvee E720HCBG132-T](https://comparepv.com/panel/emmvee-e720hcbg132-t) | | Manufacturer | Emmvee | Emmvee | | Power | 705 Wp | 720 Wp | | Efficiency | 22.70 % | 23.18 % | | Technology | TOPCon | TOPCon | ## Where they differ Ranked by how much the difference matters, not by datasheet order. | Parameter | E705HCBG132-T | E720HCBG132-T | Difference | | --- | --- | --- | --- | | Module efficiency | 22.70 % | 23.18 % | +0.48 pp for E720HCBG132-T | | Power density | 227.0 Wp/m² | 231.8 Wp/m² | +4.8 Wp/m² for E720HCBG132-T | | Rated power | 705 Wp | 720 Wp | +15 W for E720HCBG132-T | ## Every compared parameter | Parameter | E705HCBG132-T | E720HCBG132-T | | --- | --- | --- | | Rated power | 705 Wp | 720 Wp | | Module efficiency | 22.70 % | 23.18 % | | Power density | 227.0 Wp/m² | 231.8 Wp/m² | | Open-circuit voltage | 48.18 V | 48.60 V | | Voltage at max power | 40.04 V | 40.36 V | | Short-circuit current | 18.50 A | 18.56 A | | Current at max power | 17.62 A | 17.85 A | | Temperature coefficient | -0.290 %/°C | -0.290 %/°C | | Dimensions | 2384x1303x33 mm | 2384x1303x33 mm | | Module area | 3.106 m² | 3.106 m² | | Weight | 37.8 kg | 37.8 kg | | Weight per kWp | 53.6 kg/kWp | 52.5 kg/kWp | | Product warranty | 12 yrs | 12 yrs | | Performance warranty | 30 yrs | 30 yrs | | Annual degradation | 0.40 %/yr | 0.40 %/yr | | Cell technology | TOPCon | TOPCon | | 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 (-0.290 %/°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, E705HCBG132-T:** 23,654 kWh - **Cumulative output, E720HCBG132-T:** 24,157 kWh - **Gap:** 503 kWh ## Output when hot | Condition | Cell temperature | E705HCBG132-T | E720HCBG132-T | Retained | | --- | --- | --- | --- | --- | | Standard test conditions | 25 °C | 705 W | 720 W | 100.0% of rated power | | Cool, bright day | 40 °C | 674 W | 689 W | 95.7% of rated power | | Typical summer roof | 55 °C | 644 W | 657 W | 91.3% of rated power | | Hot roof | 70 °C | 613 W | 626 W | 87.0% of rated power | ## Against the whole database | Measure | E705HCBG132-T | E720HCBG132-T | Out of | Note | | --- | --- | --- | --- | --- | | Efficiency | #3,307 | #1,424 | 14,005 | E720HCBG132-T leads by 1,883 places | | Power density | #3,361 | #1,347 | 14,005 | E720HCBG132-T leads by 2,014 places | | Heat behaviour | #2,165 | #2,165 | 14,005 | Tied - the same position in the database | | Weight | #7,628 | #6,043 | 14,005 | E720HCBG132-T leads by 1,585 places | | Warranty | #21 | #21 | 14,005 | Tied - the same position in the database | | Overall | #1,007 | #540 | 14,005 | E720HCBG132-T leads by 467 places | ## Questions ### Which panel is better: Emmvee E705HCBG132-T or Emmvee E720HCBG132-T? According to our database: **Emmvee E720HCBG132-T** has higher module efficiency (**23.18%** vs **22.70%**). See the full spec comparison and 30-year energy simulation above for a complete picture. ### What is the efficiency of Emmvee E705HCBG132-T and Emmvee E720HCBG132-T? **Emmvee E705HCBG132-T** has a module efficiency of **22.70%**, while **Emmvee E720HCBG132-T** is **23.18%**. Higher efficiency means more electricity from the same roof area - useful when space is limited. ### What cell technology does Emmvee E705HCBG132-T use vs Emmvee E720HCBG132-T? **Emmvee E705HCBG132-T** uses **TOPCon** cells; **Emmvee E720HCBG132-T** uses **TOPCon**. 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 E705HCBG132-T and Emmvee E720HCBG132-T? **Emmvee E705HCBG132-T** has a **30 years** power warranty; **Emmvee E720HCBG132-T** 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 E705HCBG132-T and Emmvee E720HCBG132-T bifacial panels? Both **Emmvee E705HCBG132-T** and **Emmvee E720HCBG132-T** 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 E705HCBG132-T vs Emmvee E720HCBG 132-T](https://comparepv.com/compare/emmvee-e705hcbg132-t/emmvee-e720hcbg-132-t) - 3 differences, the largest is module efficiency - [Emmvee E705HCBG132-T vs Emmvee E715HCBG 132-T](https://comparepv.com/compare/emmvee-e705hcbg132-t/emmvee-e715hcbg-132-t) - 3 differences, the largest is module efficiency - [Emmvee E705HCBG132-T vs Emmvee E715HCBG132-T](https://comparepv.com/compare/emmvee-e705hcbg132-t/emmvee-e715hcbg132-t) - 3 differences, the largest is module efficiency - [Emmvee E705HCBG132-T vs Emmvee E710HCBG 132-T](https://comparepv.com/compare/emmvee-e705hcbg132-t/emmvee-e710hcbg-132-t) - The same specification on paper - [Emmvee E705HCBG132-T vs Emmvee E710HCBG132-T](https://comparepv.com/compare/emmvee-e705hcbg132-t/emmvee-e710hcbg132-t) - The same specification on paper - [Emmvee E705HCBG132-T vs Emmvee E705HCBG 132-T](https://comparepv.com/compare/emmvee-e705hcbg132-t/emmvee-e705hcbg-132-t) - The same specification on paper --- Source: https://comparepv.com/compare/emmvee-e705hcbg132-t/emmvee-e720hcbg132-t 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.