--- title: "Sunova TS-BGT66(610)-G11 vs Sunova TS-BGT66(615)-G11 - Solar Panel Comparison | ComparePV" description: "Compare Sunova TS-BGT66(610)-G11 vs Sunova TS-BGT66(615)-G11 side by side: what actually differs, output when it is hot, thirty-year production, and the full specification." source: "https://comparepv.com/compare/sunova-ts-bgt66-610-g11/sunova-ts-bgt66-615-g11" updated: 2026-09-11 --- # Sunova TS-BGT66(610)-G11 vs Sunova TS-BGT66(615)-G11 BGT66(615)-G11 leads on the differences that matter The largest is module efficiency: 0.20 pp more efficient. 18 of 19 comparable parameters are identical. ## The two panels | Attribute | A | B | | --- | --- | --- | | Panel | [Sunova TS-BGT66(610)-G11](https://comparepv.com/panel/sunova-ts-bgt66-610-g11) | [Sunova TS-BGT66(615)-G11](https://comparepv.com/panel/sunova-ts-bgt66-615-g11) | | Manufacturer | Sunova | Sunova | | Power | 610 Wp | 615 Wp | | Efficiency | 22.60 % | 22.80 % | | Technology | N-type | N-type | ## Where they differ Ranked by how much the difference matters, not by datasheet order. | Parameter | BGT66(610)-G11 | BGT66(615)-G11 | Difference | | --- | --- | --- | --- | | Module efficiency | 22.60 % | 22.80 % | +0.20 pp for BGT66(615)-G11 | ## Every compared parameter | Parameter | BGT66(610)-G11 | BGT66(615)-G11 | | --- | --- | --- | | Rated power | 610 Wp | 615 Wp | | Module efficiency | 22.60 % | 22.80 % | | Power density | 225.8 Wp/m² | 227.7 Wp/m² | | Open-circuit voltage | 49.00 V | 49.30 V | | Voltage at max power | 40.80 V | 40.98 V | | Short-circuit current | 15.86 A | 15.89 A | | Current at max power | 14.96 A | 14.98 A | | Temperature coefficient | -0.290 %/°C | -0.290 %/°C | | Dimensions | 2382x1134x35 mm | 2382x1134x35 mm | | Module area | 2.701 m² | 2.701 m² | | Weight | 32.5 kg | 32.5 kg | | Weight per kWp | 53.3 kg/kWp | 52.8 kg/kWp | | Product warranty | 15 yrs | 15 yrs | | Performance warranty | 30 yrs | 30 yrs | | Annual degradation | 0.40 %/yr | 0.40 %/yr | | Cell technology | N-type | N-type | | 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, BGT66(610)-G11:** 20,467 kWh - **Cumulative output, BGT66(615)-G11:** 20,634 kWh - **Gap:** 167 kWh ## Output when hot | Condition | Cell temperature | BGT66(610)-G11 | BGT66(615)-G11 | Retained | | --- | --- | --- | --- | --- | | Standard test conditions | 25 °C | 610 W | 615 W | 100.0% of rated power | | Cool, bright day | 40 °C | 583 W | 588 W | 95.7% of rated power | | Typical summer roof | 55 °C | 557 W | 561 W | 91.3% of rated power | | Hot roof | 70 °C | 530 W | 535 W | 87.0% of rated power | ## Against the whole database | Measure | BGT66(610)-G11 | BGT66(615)-G11 | Out of | Note | | --- | --- | --- | --- | --- | | Efficiency | #3,658 | #2,714 | 14,005 | BGT66(615)-G11 leads by 944 places | | Power density | #3,729 | #3,077 | 14,005 | BGT66(615)-G11 leads by 652 places | | Heat behaviour | #2,165 | #2,165 | 14,005 | Tied - the same position in the database | | Weight | #7,135 | #6,546 | 14,005 | BGT66(615)-G11 leads by 589 places | | Warranty | #21 | #21 | 14,005 | Tied - the same position in the database | | Overall | #2,670 | #2,324 | 14,005 | BGT66(615)-G11 leads by 346 places | ## Questions ### Which panel is better: Sunova TS-BGT66(610)-G11 or Sunova TS-BGT66(615)-G11? According to our database: **Sunova TS-BGT66(615)-G11** has higher module efficiency (**22.80%** vs **22.60%**). See the full spec comparison and 30-year energy simulation above for a complete picture. ### What is the efficiency of Sunova TS-BGT66(610)-G11 and Sunova TS-BGT66(615)-G11? **Sunova TS-BGT66(610)-G11** has a module efficiency of **22.60%**, while **Sunova TS-BGT66(615)-G11** is **22.80%**. Higher efficiency means more electricity from the same roof area - useful when space is limited. ### What cell technology does Sunova TS-BGT66(610)-G11 use vs Sunova TS-BGT66(615)-G11? **Sunova TS-BGT66(610)-G11** uses **N-type** cells; **Sunova TS-BGT66(615)-G11** uses **N-type**. 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 Sunova TS-BGT66(610)-G11 and Sunova TS-BGT66(615)-G11? **Sunova TS-BGT66(610)-G11** has a **30 years** power warranty; **Sunova TS-BGT66(615)-G11** 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 Sunova TS-BGT66(610)-G11 and Sunova TS-BGT66(615)-G11 bifacial panels? Both **Sunova TS-BGT66(610)-G11** and **Sunova TS-BGT66(615)-G11** 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 - [Sunova TS-BGT66(610)-G11 vs Sunova TS-BGT66(720)-G12](https://comparepv.com/compare/sunova-ts-bgt66-610-g11/sunova-ts-bgt66-720-g12) - 9 differences, the largest is rated power - [Sunova TS-BGT66(610)-G11 vs Sunova TS-BGT66(715)-G12](https://comparepv.com/compare/sunova-ts-bgt66-610-g11/sunova-ts-bgt66-715-g12) - 9 differences, the largest is rated power - [Sunova TS-BGT66(610)-G11 vs Sunova TS-BGT66(710)-G12](https://comparepv.com/compare/sunova-ts-bgt66-610-g11/sunova-ts-bgt66-710-g12) - 8 differences, the largest is rated power - [Sunova TS-BGT66(610)-G11 vs Sunova TS-BGT66(705)-G12](https://comparepv.com/compare/sunova-ts-bgt66-610-g11/sunova-ts-bgt66-705-g12) - 7 differences, the largest is rated power - [Sunova TS-BGT66(610)-G11 vs Sunova TS-BGT66(700)-G12](https://comparepv.com/compare/sunova-ts-bgt66-610-g11/sunova-ts-bgt66-700-g12) - 7 differences, the largest is rated power - [Sunova TS-BGT66(610)-G11 vs Sunova TS-BGT66(620)-G11](https://comparepv.com/compare/sunova-ts-bgt66-610-g11/sunova-ts-bgt66-620-g11) - 3 differences, the largest is module efficiency --- Source: https://comparepv.com/compare/sunova-ts-bgt66-610-g11/sunova-ts-bgt66-615-g11 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.