--- title: "Ulica Solar UL-655M-132HV vs Ulica Solar UL-705M-132DGN - Solar Panel Comparison | ComparePV" description: "Compare Ulica Solar UL-655M-132HV vs Ulica Solar UL-705M-132DGN side by side: what actually differs, output when it is hot, thirty-year production, and the full specification." source: "https://comparepv.com/compare/ulica-solar-ul-655m-132hv/ulica-solar-ul-705m-132dgn" updated: 2026-09-11 --- # Ulica Solar UL-655M-132HV vs Ulica Solar UL-705M-132DGN 705M-132DGN leads on the differences that matter The largest is module efficiency: 1.61 pp more efficient. 6 of 19 comparable parameters are identical. ## The two panels | Attribute | A | B | | --- | --- | --- | | Panel | [Ulica Solar UL-655M-132HV](https://comparepv.com/panel/ulica-solar-ul-655m-132hv) | [Ulica Solar UL-705M-132DGN](https://comparepv.com/panel/ulica-solar-ul-705m-132dgn) | | Manufacturer | Ulica Solar | Ulica Solar | | Power | 655 Wp | 705 Wp | | Efficiency | 21.09 % | 22.70 % | | Technology | TOPCon | TOPCon | ## Where they differ Ranked by how much the difference matters, not by datasheet order. | Parameter | 655M-132HV | 705M-132DGN | Difference | | --- | --- | --- | --- | | Module efficiency | 21.09 % | 22.70 % | +1.61 pp for 705M-132DGN | | Temperature coefficient | -0.340 %/°C | -0.290 %/°C | +0.050 %/°C for 705M-132DGN | | Rated power | 655 Wp | 705 Wp | +50 W for 705M-132DGN | | Power density | 210.9 Wp/m² | 227.0 Wp/m² | +16.1 Wp/m² for 705M-132DGN | | Performance warranty | 25 yrs | 30 yrs | +5 yrs for 705M-132DGN | | Annual degradation | 0.55 %/yr | 0.40 %/yr | -0.15 %/yr for 705M-132DGN | | Weight | 33.3 kg | 37.4 kg | -4.1 kg for 655M-132HV | | Product warranty | 12 yrs | 15 yrs | +3 yrs for 705M-132DGN | | Open-circuit voltage | 45.60 V | 48.72 V | 3.12 V apart | | Weight per kWp | 50.8 kg/kWp | 53.0 kg/kWp | -2.2 kg/kWp for 655M-132HV | | Bifacial | No | Yes | No vs Yes | | Voltage at max power | 38.10 V | 40.69 V | 2.59 V apart | | Dimensions | 2384x1303x35 mm | 2384x1303x33 mm | 2384x1303x35 mm vs 2384x1303x33 mm | ## Every compared parameter | Parameter | 655M-132HV | 705M-132DGN | | --- | --- | --- | | Rated power | 655 Wp | 705 Wp | | Module efficiency | 21.09 % | 22.70 % | | Power density | 210.9 Wp/m² | 227.0 Wp/m² | | Open-circuit voltage | 45.60 V | 48.72 V | | Voltage at max power | 38.10 V | 40.69 V | | Short-circuit current | 18.35 A | 18.36 A | | Current at max power | 17.19 A | 17.33 A | | Temperature coefficient | -0.340 %/°C | -0.290 %/°C | | Dimensions | 2384x1303x35 mm | 2384x1303x33 mm | | Module area | 3.106 m² | 3.106 m² | | Weight | 33.3 kg | 37.4 kg | | Weight per kWp | 50.8 kg/kWp | 53.0 kg/kWp | | Product warranty | 12 yrs | 15 yrs | | Performance warranty | 25 yrs | 30 yrs | | Annual degradation | 0.55 %/yr | 0.40 %/yr | | Cell technology | TOPCon | TOPCon | | Cell type | Monocrystalline | Monocrystalline | | Cell count | 132 | 132 | | Bifacial | No | Yes | ## Thirty-year yield Each panel's own declared degradation curve, at 1,200 kWh/kWp a year - **Cumulative output, 655M-132HV:** 21,228 kWh - **Cumulative output, 705M-132DGN:** 23,654 kWh - **Gap:** 2,426 kWh ## Output when hot | Condition | Cell temperature | 655M-132HV | 705M-132DGN | Retained | | --- | --- | --- | --- | --- | | Standard test conditions | 25 °C | 655 W | 705 W | 100.0% of rated power | | Cool, bright day | 40 °C | 622 W | 674 W | 94.9% of rated power | | Typical summer roof | 55 °C | 588 W | 644 W | 89.8% of rated power | | Hot roof | 70 °C | 555 W | 613 W | 84.7% of rated power | ## Against the whole database | Measure | 655M-132HV | 705M-132DGN | Out of | Note | | --- | --- | --- | --- | --- | | Efficiency | #9,519 | #3,307 | 14,005 | 705M-132DGN leads by 6,212 places | | Power density | #9,459 | #3,361 | 14,005 | 705M-132DGN leads by 6,098 places | | Heat behaviour | #8,778 | #2,165 | 14,005 | 705M-132DGN leads by 6,613 places | | Weight | #4,239 | #6,803 | 14,005 | 655M-132HV leads by 2,564 places | | Warranty | #9,798 | #21 | 14,005 | 705M-132DGN leads by 9,777 places | | Overall | #4,439 | #738 | 14,005 | 705M-132DGN leads by 3,701 places | ## Questions ### Which panel is better: Ulica Solar UL-655M-132HV or Ulica Solar UL-705M-132DGN? According to our database: **Ulica Solar UL-705M-132DGN** has higher module efficiency (**22.70%** vs **21.09%**); **Ulica Solar UL-705M-132DGN** tolerates heat better (temp coeff **-0.290%/°C** vs **-0.340%/°C**). See the full spec comparison and 30-year energy simulation above for a complete picture. ### What is the efficiency of Ulica Solar UL-655M-132HV and Ulica Solar UL-705M-132DGN? **Ulica Solar UL-655M-132HV** has a module efficiency of **21.09%**, while **Ulica Solar UL-705M-132DGN** is **22.70%**. Higher efficiency means more electricity from the same roof area - useful when space is limited. ### What cell technology does Ulica Solar UL-655M-132HV use vs Ulica Solar UL-705M-132DGN? **Ulica Solar UL-655M-132HV** uses **TOPCon** cells; **Ulica Solar UL-705M-132DGN** 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 Ulica Solar UL-655M-132HV and Ulica Solar UL-705M-132DGN? **Ulica Solar UL-655M-132HV** has a **25 years** power warranty; **Ulica Solar UL-705M-132DGN** 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 Ulica Solar UL-655M-132HV and Ulica Solar UL-705M-132DGN bifacial panels? **Ulica Solar UL-705M-132DGN** is bifacial (captures light from both faces); **Ulica Solar UL-655M-132HV** is monofacial. Bifacial panels work best on ground mounts or raised structures with a light-coloured surface underneath. ## Related comparisons - [Ulica Solar UL-655M-132HV vs Ulica Solar UL-670M-132HV](https://comparepv.com/compare/ulica-solar-ul-655m-132hv/ulica-solar-ul-670m-132hv) - 3 differences, the largest is module efficiency - [Ulica Solar UL-655M-132HV vs Ulica Solar UL-665M-132HV](https://comparepv.com/compare/ulica-solar-ul-655m-132hv/ulica-solar-ul-665m-132hv) - 3 differences, the largest is module efficiency - [Ulica Solar UL-655M-132HV vs Ulica Solar UL-660M-132HV](https://comparepv.com/compare/ulica-solar-ul-655m-132hv/ulica-solar-ul-660m-132hv) - The same specification on paper - [Ulica Solar UL-705M-132DGN vs Ulica Solar UL-715M-132DGN](https://comparepv.com/compare/ulica-solar-ul-705m-132dgn/ulica-solar-ul-715m-132dgn) - 3 differences, the largest is module efficiency - [Ulica Solar UL-705M-132DGN vs Ulica Solar UL-710M-132DGN](https://comparepv.com/compare/ulica-solar-ul-705m-132dgn/ulica-solar-ul-710m-132dgn) - The same specification on paper - [Ulica Solar UL-705M-132DGN vs Ulica Solar UL-700M-132DGN](https://comparepv.com/compare/ulica-solar-ul-705m-132dgn/ulica-solar-ul-700m-132dgn) - The same specification on paper --- Source: https://comparepv.com/compare/ulica-solar-ul-655m-132hv/ulica-solar-ul-705m-132dgn 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.