--- title: "SpolarPV SPV685-TG12-132BD vs SpolarPV SPV700-TG12-132BD - Solar Panel Comparison | ComparePV" description: "Compare SpolarPV SPV685-TG12-132BD vs SpolarPV SPV700-TG12-132BD side by side: what actually differs, output when it is hot, thirty-year production, and the full specification." source: "https://comparepv.com/compare/spolarpv-spv685-tg12-132bd/spolarpv-spv700-tg12-132bd" updated: 2026-09-11 --- # SpolarPV SPV685-TG12-132BD vs SpolarPV SPV700-TG12-132BD SPV700-TG12-132BD leads on the differences that matter The largest is module efficiency: 0.49 pp more efficient. 16 of 19 comparable parameters are identical. ## The two panels | Attribute | A | B | | --- | --- | --- | | Panel | [SpolarPV SPV685-TG12-132BD](https://comparepv.com/panel/spolarpv-spv685-tg12-132bd) | [SpolarPV SPV700-TG12-132BD](https://comparepv.com/panel/spolarpv-spv700-tg12-132bd) | | Manufacturer | SpolarPV | SpolarPV | | Power | 685 Wp | 700 Wp | | Efficiency | 22.08 % | 22.57 % | | Technology | TOPCon | TOPCon | ## Where they differ Ranked by how much the difference matters, not by datasheet order. | Parameter | SPV685-TG12-132BD | SPV700-TG12-132BD | Difference | | --- | --- | --- | --- | | Module efficiency | 22.08 % | 22.57 % | +0.49 pp for SPV700-TG12-132BD | | Power density | 220.8 Wp/m² | 225.6 Wp/m² | +4.8 Wp/m² for SPV700-TG12-132BD | | Rated power | 685 Wp | 700 Wp | +15 W for SPV700-TG12-132BD | ## Every compared parameter | Parameter | SPV685-TG12-132BD | SPV700-TG12-132BD | | --- | --- | --- | | Rated power | 685 Wp | 700 Wp | | Module efficiency | 22.08 % | 22.57 % | | Power density | 220.8 Wp/m² | 225.6 Wp/m² | | Open-circuit voltage | 47.65 V | 48.25 V | | Voltage at max power | 39.83 V | 40.48 V | | Short-circuit current | 18.25 A | 18.35 A | | Current at max power | 17.21 A | 17.31 A | | Temperature coefficient | -0.300 %/°C | -0.300 %/°C | | Dimensions | 2383x1302x30 mm | 2383x1302x30 mm | | Module area | 3.103 m² | 3.103 m² | | Weight | 38.0 kg | 38.0 kg | | Weight per kWp | 55.5 kg/kWp | 54.3 kg/kWp | | Product warranty | 12 yrs | 12 yrs | | Performance warranty | 30 yrs | 30 yrs | | Annual degradation | 0.46 %/yr | 0.46 %/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 (-0.300 %/°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, SPV685-TG12-132BD:** 22,540 kWh - **Cumulative output, SPV700-TG12-132BD:** 23,033 kWh - **Gap:** 493 kWh ## Output when hot | Condition | Cell temperature | SPV685-TG12-132BD | SPV700-TG12-132BD | Retained | | --- | --- | --- | --- | --- | | Standard test conditions | 25 °C | 685 W | 700 W | 100.0% of rated power | | Cool, bright day | 40 °C | 654 W | 669 W | 95.5% of rated power | | Typical summer roof | 55 °C | 623 W | 637 W | 91.0% of rated power | | Hot roof | 70 °C | 593 W | 606 W | 86.5% of rated power | ## Against the whole database | Measure | SPV685-TG12-132BD | SPV700-TG12-132BD | Out of | Note | | --- | --- | --- | --- | --- | | Efficiency | #6,116 | #3,882 | 14,005 | SPV700-TG12-132BD leads by 2,234 places | | Power density | #6,042 | #3,863 | 14,005 | SPV700-TG12-132BD leads by 2,179 places | | Heat behaviour | #6,093 | #6,093 | 14,005 | Tied - the same position in the database | | Weight | #9,876 | #8,524 | 14,005 | SPV700-TG12-132BD leads by 1,352 places | | Warranty | #21 | #21 | 14,005 | Tied - the same position in the database | | Overall | #1,718 | #1,158 | 14,005 | SPV700-TG12-132BD leads by 560 places | ## Questions ### Which panel is better: SpolarPV SPV685-TG12-132BD or SpolarPV SPV700-TG12-132BD? According to our database: **SpolarPV SPV700-TG12-132BD** has higher module efficiency (**22.57%** vs **22.08%**). See the full spec comparison and 30-year energy simulation above for a complete picture. ### What is the efficiency of SpolarPV SPV685-TG12-132BD and SpolarPV SPV700-TG12-132BD? **SpolarPV SPV685-TG12-132BD** has a module efficiency of **22.08%**, while **SpolarPV SPV700-TG12-132BD** is **22.57%**. Higher efficiency means more electricity from the same roof area - useful when space is limited. ### What cell technology does SpolarPV SPV685-TG12-132BD use vs SpolarPV SPV700-TG12-132BD? **SpolarPV SPV685-TG12-132BD** uses **TOPCon** cells; **SpolarPV SPV700-TG12-132BD** 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 SpolarPV SPV685-TG12-132BD and SpolarPV SPV700-TG12-132BD? **SpolarPV SPV685-TG12-132BD** has a **30 years** power warranty; **SpolarPV SPV700-TG12-132BD** 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 SpolarPV SPV685-TG12-132BD and SpolarPV SPV700-TG12-132BD bifacial panels? Both **SpolarPV SPV685-TG12-132BD** and **SpolarPV SPV700-TG12-132BD** 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 - [SpolarPV SPV685-TG12-132BD vs SpolarPV SPV695-TG12-132BD](https://comparepv.com/compare/spolarpv-spv685-tg12-132bd/spolarpv-spv695-tg12-132bd) - 3 differences, the largest is module efficiency - [SpolarPV SPV685-TG12-132BD vs SpolarPV SPV690-TG12-132BD](https://comparepv.com/compare/spolarpv-spv685-tg12-132bd/spolarpv-spv690-tg12-132bd) - The same specification on paper - [SpolarPV SPV685-TG12-132BD vs SpolarPV SPV680-TG12-132BD](https://comparepv.com/compare/spolarpv-spv685-tg12-132bd/spolarpv-spv680-tg12-132bd) - The same specification on paper - [SpolarPV SPV685-TG12-132BD vs SpolarPV SPV675-TG12-132BD](https://comparepv.com/compare/spolarpv-spv685-tg12-132bd/spolarpv-spv675-tg12-132bd) - 3 differences, the largest is module efficiency - [SpolarPV SPV685-TG12-132BD vs SpolarPV SPV670-TG12-132BD](https://comparepv.com/compare/spolarpv-spv685-tg12-132bd/spolarpv-spv670-tg12-132bd) - 4 differences, the largest is module efficiency - [SpolarPV SPV685-TG12-132BD vs SpolarPV SPV665-TG12-132BD](https://comparepv.com/compare/spolarpv-spv685-tg12-132bd/spolarpv-spv665-tg12-132bd) - 4 differences, the largest is module efficiency --- Source: https://comparepv.com/compare/spolarpv-spv685-tg12-132bd/spolarpv-spv700-tg12-132bd 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.