--- title: "Ulica Solar UL-445M-108BDGN vs Ulica Solar UL-460M-108BDGN - Solar Panel Comparison | ComparePV" description: "Compare Ulica Solar UL-445M-108BDGN vs Ulica Solar UL-460M-108BDGN 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-445m-108bdgn/ulica-solar-ul-460m-108bdgn" updated: 2026-09-11 --- # Ulica Solar UL-445M-108BDGN vs Ulica Solar UL-460M-108BDGN 460M-108BDGN leads on the differences that matter The largest is module efficiency: 0.75 pp more efficient. 16 of 19 comparable parameters are identical. ## The two panels | Attribute | A | B | | --- | --- | --- | | Panel | [Ulica Solar UL-445M-108BDGN](https://comparepv.com/panel/ulica-solar-ul-445m-108bdgn) | [Ulica Solar UL-460M-108BDGN](https://comparepv.com/panel/ulica-solar-ul-460m-108bdgn) | | Manufacturer | Ulica Solar | Ulica Solar | | Power | 445 Wp | 460 Wp | | Efficiency | 22.27 % | 23.02 % | | Technology | TOPCon | TOPCon | ## Where they differ Ranked by how much the difference matters, not by datasheet order. | Parameter | 445M-108BDGN | 460M-108BDGN | Difference | | --- | --- | --- | --- | | Module efficiency | 22.27 % | 23.02 % | +0.75 pp for 460M-108BDGN | | Power density | 222.7 Wp/m² | 230.2 Wp/m² | +7.5 Wp/m² for 460M-108BDGN | | Rated power | 445 Wp | 460 Wp | +15 W for 460M-108BDGN | ## Every compared parameter | Parameter | 445M-108BDGN | 460M-108BDGN | | --- | --- | --- | | Rated power | 445 Wp | 460 Wp | | Module efficiency | 22.27 % | 23.02 % | | Power density | 222.7 Wp/m² | 230.2 Wp/m² | | Open-circuit voltage | 39.58 V | 40.18 V | | Voltage at max power | 33.02 V | 33.63 V | | Short-circuit current | 14.30 A | 14.46 A | | Current at max power | 13.48 A | 13.68 A | | Temperature coefficient | -0.290 %/°C | -0.290 %/°C | | Dimensions | 1762x1134x30 mm | 1762x1134x30 mm | | Module area | 1.998 m² | 1.998 m² | | Weight | 24.0 kg | 24.0 kg | | Weight per kWp | 53.9 kg/kWp | 52.2 kg/kWp | | Product warranty | 15 yrs | 15 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 | 108 | 108 | | 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, 445M-108BDGN:** 14,931 kWh - **Cumulative output, 460M-108BDGN:** 15,434 kWh - **Gap:** 503 kWh ## Output when hot | Condition | Cell temperature | 445M-108BDGN | 460M-108BDGN | Retained | | --- | --- | --- | --- | --- | | Standard test conditions | 25 °C | 445 W | 460 W | 100.0% of rated power | | Cool, bright day | 40 °C | 426 W | 440 W | 95.7% of rated power | | Typical summer roof | 55 °C | 406 W | 420 W | 91.3% of rated power | | Hot roof | 70 °C | 387 W | 400 W | 87.0% of rated power | ## Against the whole database | Measure | 445M-108BDGN | 460M-108BDGN | Out of | Note | | --- | --- | --- | --- | --- | | Efficiency | #5,481 | #1,797 | 14,005 | 460M-108BDGN leads by 3,684 places | | Power density | #5,302 | #1,876 | 14,005 | 460M-108BDGN leads by 3,426 places | | Heat behaviour | #2,165 | #2,165 | 14,005 | Tied - the same position in the database | | Weight | #8,086 | #5,637 | 14,005 | 460M-108BDGN leads by 2,449 places | | Warranty | #21 | #21 | 14,005 | Tied - the same position in the database | | Overall | #8,949 | #7,424 | 14,005 | 460M-108BDGN leads by 1,525 places | ## Questions ### Which panel is better: Ulica Solar UL-445M-108BDGN or Ulica Solar UL-460M-108BDGN? According to our database: **Ulica Solar UL-460M-108BDGN** has higher module efficiency (**23.02%** vs **22.27%**). See the full spec comparison and 30-year energy simulation above for a complete picture. ### What is the efficiency of Ulica Solar UL-445M-108BDGN and Ulica Solar UL-460M-108BDGN? **Ulica Solar UL-445M-108BDGN** has a module efficiency of **22.27%**, while **Ulica Solar UL-460M-108BDGN** is **23.02%**. Higher efficiency means more electricity from the same roof area - useful when space is limited. ### What cell technology does Ulica Solar UL-445M-108BDGN use vs Ulica Solar UL-460M-108BDGN? **Ulica Solar UL-445M-108BDGN** uses **TOPCon** cells; **Ulica Solar UL-460M-108BDGN** 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-445M-108BDGN and Ulica Solar UL-460M-108BDGN? **Ulica Solar UL-445M-108BDGN** has a **30 years** power warranty; **Ulica Solar UL-460M-108BDGN** 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-445M-108BDGN and Ulica Solar UL-460M-108BDGN bifacial panels? Both **Ulica Solar UL-445M-108BDGN** and **Ulica Solar UL-460M-108BDGN** 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 - [Ulica Solar UL-445M-108BDGN vs Ulica Solar UL-505M-120BDGN](https://comparepv.com/compare/ulica-solar-ul-445m-108bdgn/ulica-solar-ul-505m-120bdgn) - 9 differences, the largest is rated power - [Ulica Solar UL-445M-108BDGN vs Ulica Solar UL-500M-120BDGN](https://comparepv.com/compare/ulica-solar-ul-445m-108bdgn/ulica-solar-ul-500m-120bdgn) - 9 differences, the largest is rated power - [Ulica Solar UL-445M-108BDGN vs Ulica Solar UL-495M-120BDGN](https://comparepv.com/compare/ulica-solar-ul-445m-108bdgn/ulica-solar-ul-495m-120bdgn) - 7 differences, the largest is rated power - [Ulica Solar UL-445M-108BDGN vs Ulica Solar UL-490M-120BDGN](https://comparepv.com/compare/ulica-solar-ul-445m-108bdgn/ulica-solar-ul-490m-120bdgn) - 7 differences, the largest is rated power - [Ulica Solar UL-445M-108BDGN vs Ulica Solar UL-455M-108BDGN](https://comparepv.com/compare/ulica-solar-ul-445m-108bdgn/ulica-solar-ul-455m-108bdgn) - 3 differences, the largest is module efficiency - [Ulica Solar UL-445M-108BDGN vs Ulica Solar UL-450M-108BDGN](https://comparepv.com/compare/ulica-solar-ul-445m-108bdgn/ulica-solar-ul-450m-108bdgn) - One difference: module efficiency --- Source: https://comparepv.com/compare/ulica-solar-ul-445m-108bdgn/ulica-solar-ul-460m-108bdgn 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.