--- title: "Bisol Solar Panels Review 2026: Pros, Cons & Specs | ComparePV" description: "In-depth Bisol solar panel review 2026. 12 models analyzed: efficiency, cell technology, warranty, top picks. Compare Bisol panels on ComparePV." source: "https://comparepv.com/reviews/bisol" --- # Bisol panels, *read off the datasheets* BISOL Group is a European manufacturer of high-quality photovoltaic modules headquartered in Prebold, Slovenia. Founded in 2004, it is considered Europe's leading authentic solar module producer with a production capacity of 750 MW and products distributed in over 120 countries. The company... Everything below is computed from those 12 datasheets: no score out of ten, no ranking of brands against each other, and nothing a manufacturer can pay to change. Where Bisol does not publish a figure, it is left out of the average rather than assumed. ## The company - **Founded:** 2004 - **Headquarters:** Prebold, Slovenia - **Annual capacity:** \<1 GW - **Employees:** 200-500 Company facts, not datasheet figures. Tier 1 is a financier's bankability list, and says nothing about how a panel performs. ## Key figures | Measure | Value | Note | | --- | --- | --- | | Panels | 12 | models in the database | | Average efficiency | 21.8 % | across the catalogue | | Best efficiency | 23.5 % (good) | their strongest module | | Power range | 340-580 Wp | smallest to largest | | Bifacial share | 8 % | 1 dual-sided models | | Average warranty | 30 years | guaranteed output term | ## 01. The top of the range The leaders of Bisol's own catalogue on the two figures a specification sheet leads with. Neither is a verdict: the most efficient module in a range is rarely the one that suits a given roof. ### Most efficient module efficiency | # | Panel | power | efficiency | | --- | --- | --- | --- | | 1 | [BGO 580](https://comparepv.com/panel/bisol-bgo-580) | 580 Wp | 23.5% (good) | | 2 | [BBO 520](https://comparepv.com/panel/bisol-bbo-520) | 520 Wp | 23.2% (good) | | 3 | [BGO 570](https://comparepv.com/panel/bisol-bgo-570) | 570 Wp | 23.1% (good) | | 4 | [BDO 460](https://comparepv.com/panel/bisol-bdo-460) | 460 Wp | 23.0% (good) | | 5 | [BBO 510](https://comparepv.com/panel/bisol-bbo-510) | 510 Wp | 22.8% (good) | - BGO 580 - Monocrystalline - BBO 520 - Monocrystalline - BGO 570 - Monocrystalline - BDO 460 - Monocrystalline - BBO 510 - Monocrystalline [Sort the whole catalogue by efficiency](https://comparepv.com/panels/bisol?sort_by=efficiency&sort_order=desc) ### Highest power nameplate output | # | Panel | efficiency | power | | --- | --- | --- | --- | | 1 | [BGO 580](https://comparepv.com/panel/bisol-bgo-580) | 23.5% (good) | 580 Wp | | 2 | [BGO 570](https://comparepv.com/panel/bisol-bgo-570) | 23.1% (good) | 570 Wp | | 3 | [BGO 560](https://comparepv.com/panel/bisol-bgo-560) | 22.7% (good) | 560 Wp | | 4 | [BBO 520](https://comparepv.com/panel/bisol-bbo-520) | 23.2% (good) | 520 Wp | | 5 | [BBO 510](https://comparepv.com/panel/bisol-bbo-510) | 22.8% (good) | 510 Wp | - BGO 580 - Monocrystalline - BGO 570 - Monocrystalline - BGO 560 - Monocrystalline - BBO 520 - Monocrystalline - BBO 510 - Monocrystalline [Sort the whole catalogue by power](https://comparepv.com/panels/bisol?sort_by=power&sort_order=desc) ## 02. By what the array is for Three cuts of the same catalogue, each ordered by efficiency inside its band. An empty column means the brand does not build for that case. ### For a house roof 380-460 Wp | # | Panel | power | efficiency | | --- | --- | --- | --- | | 1 | [BDO 460](https://comparepv.com/panel/bisol-bdo-460) | 460 Wp | 23.0% (good) | | 2 | [BDO 450](https://comparepv.com/panel/bisol-bdo-450) | 450 Wp | 22.5% (good) | | 3 | [BDO 440](https://comparepv.com/panel/bisol-bdo-440) | 440 Wp | 22.0% (good) | | 4 | [BDO 410](https://comparepv.com/panel/bisol-bdo-410) | 410 Wp | 20.5% | - BDO 460 - Monocrystalline - BDO 450 - Monocrystalline - BDO 440 - Monocrystalline - BDO 410 - Monocrystalline ### For a commercial array 500 Wp and up | # | Panel | power | efficiency | | --- | --- | --- | --- | | 1 | [BGO 580](https://comparepv.com/panel/bisol-bgo-580) | 580 Wp | 23.5% (good) | | 2 | [BGO 570](https://comparepv.com/panel/bisol-bgo-570) | 570 Wp | 23.1% (good) | | 3 | [BGO 560](https://comparepv.com/panel/bisol-bgo-560) | 560 Wp | 22.7% (good) | | 4 | [BBO 520](https://comparepv.com/panel/bisol-bbo-520) | 520 Wp | 23.2% (good) | | 5 | [BBO 510](https://comparepv.com/panel/bisol-bbo-510) | 510 Wp | 22.8% (good) | - BGO 580 - Monocrystalline - BGO 570 - Monocrystalline - BGO 560 - Monocrystalline - BBO 520 - Monocrystalline - BBO 510 - Monocrystalline ### For a ground mount dual-sided | # | Panel | power | efficiency | | --- | --- | --- | --- | | 1 | [BDO 340](https://comparepv.com/panel/bisol-bdo-340) | 340 Wp | 17.4% | - BDO 340 - Monocrystalline bifacial ## 03. What the catalogue is made of Shares are of the 12 modules in the database, counted once each. A power ladder of one module counts as its rungs, which is why a large catalogue is not the same as a wide one. [Cell technology across the market](https://comparepv.com/stats/cell-technology) ### Cell technology share of the catalogue | # | Panel | share | panels | | --- | --- | --- | --- | | | PERC | 58.3% | 7 | | | TOPCon | 41.7% | 5 | PERC accounts for 58.3% of the catalogue - 7 of 12 modules. ### Efficiency spread share of the catalogue | # | Panel | share | panels | | --- | --- | --- | --- | | | \<20% | 16.7% | 2 | | | 20-21% | 8.3% | 1 | | | 22-23% | 41.7% | 5 | | | 23%+ | 33.3% | 4 | ## 04. Strengths and gaps Both lists are derived from the figures above rather than written about the brand. A gap here is a gap in what is published, which is not always a gap in what is built. ### What this catalogue is good at - **Strength:** High-efficiency panels available (up to 23.5%) - **Strength:** Strong warranty coverage averaging 30 years - **Strength:** Established manufacturer with 22+ years of experience - **Strength:** Large-scale production capacity of \<1 GW ### Where it is thin - **Watch out:** Limited bifacial panel options ## 05. In short > **Bisol:** Bisol is an industry leader in efficiency, offering 12 panels suitable for both residential and commercial buyers. With an average efficiency of 21.8% and top models reaching 23.5%, their panels deliver competitive performance. ### Common questions #### Is Bisol a good solar panel manufacturer? Bisol offers 12 solar panel models with an average efficiency of 21.8%. Check their full panel lineup on ComparePV to find the best model for your needs. #### What types of solar panels does Bisol make? Bisol manufactures panels ranging from 340W to 580W, covering both residential and commercial applications. Their portfolio includes PERC (58%), TOPCon (42%) cell technologies. #### How efficient are Bisol solar panels? Bisol panels have an average efficiency of 21.8%, with their most efficient model reaching 23.5%. This puts them among the industry leaders in the current market. #### Does Bisol make bifacial solar panels? Yes, Bisol offers 1 bifacial panels, representing 8% of their portfolio. Bifacial panels can generate additional energy from the rear side, making them ideal for ground-mounted systems. #### What warranty does Bisol offer on their solar panels? Bisol panels come with an average performance warranty of 30 years. This warranty guarantees that the panels will maintain a specified level of power output over time, protecting your investment against degradation beyond normal levels. #### Are Bisol panels good for residential use? Bisol offers panels in the residential-friendly 380-460W range. For home installations, look for models with high efficiency and compact dimensions to maximize power from limited roof space. Browse their full lineup on ComparePV to filter by power range and specifications. #### Does Bisol use TOPCon technology? Yes, Bisol has adopted TOPCon (Tunnel Oxide Passivated Contact) cell technology in part of their portfolio. TOPCon cells offer higher efficiency and better temperature performance compared to older PERC technology, making them a strong choice for maximizing energy production. ## 06. Compared with A brand comparison weighs the two catalogues against each other - what each builds, at what efficiency, and how deep the range goes. [Build your own](https://comparepv.com/comparisons) - [Bisol vs Jinko Solar](https://comparepv.com/bisol-vs-jinko-solar) - [Bisol vs JA Solar](https://comparepv.com/bisol-vs-ja-solar) - [Bisol vs Trina Solar](https://comparepv.com/bisol-vs-trina-solar) - [Bisol vs LONGi](https://comparepv.com/bisol-vs-longi) - [Bisol vs Canadian Solar](https://comparepv.com/bisol-vs-canadian-solar) - [Bisol vs Q-Cells](https://comparepv.com/bisol-vs-q-cells) - [Bisol vs AIKO](https://comparepv.com/aiko-vs-bisol) - [Bisol vs Hyundai](https://comparepv.com/bisol-vs-hyundai) ## Elsewhere - [All Bisol panels 12](https://comparepv.com/panels/bisol) - [All manufacturers](https://comparepv.com/reviews) - [Panel database](https://comparepv.com/panels) - [Market statistics](https://comparepv.com/stats) --- Source: https://comparepv.com/reviews/bisol