--- title: "Top Solar TS-EFS150M 150W Solar Panel - Specs & Review | ComparePV" description: "Top Solar TS-EFS150M 150W solar panel. Specs: 18.60% efficiency, Monocrystalline cells, dimensions, warranty and temperature coefficient." source: "https://comparepv.com/panel/top-solar-ts-efs150m" updated: 2026-09-11 --- # Top Solar TS-EFS150M Light for its output, weak in heat 338 panels in the 50-250 W band, all technologies ## Identity - **Manufacturer:** Top Solar - **Model:** TS-EFS150M - **Series:** TS-EFS - **Rated power:** 150 W - **Cell technology:** Back Contact ## How it compares Compared against 50-250 W band, all technologies (338 panels). | Measure | This panel | Segment median | Standing | Rank | | --- | --- | --- | --- | --- | | Power (Wp) | 150 W | 172 W | Typical | | | Module efficiency | 18.60% | 15.96% | Strong - top 20% | 13,087 | | Power density | 153.3 | 159.2 | Typical | 13,733 | | Temperature coefficient | -0.420 | -0.370 | Weak - bottom 5% | 13,796 | | Weight (kg) | 2.6 kg | 11.5 kg | Strong - top 2% | | | Performance warranty | - | 25 yrs | | | ### Full peer table | Measure | This panel | Segment median | Standing | Rank | | --- | --- | --- | --- | --- | | Module efficiency | 18.60% | 15.96% | Strong - top 20% | 13,087 | | Power density | 153.3 | 159.2 | Typical | 13,733 | | Temperature coefficient | -0.420 | -0.370 | Weak - bottom 5% | 13,796 | | Weight per kWp | 17.3 | 70.3 | Strong - top 2% | 54 | | Performance warranty | - | 25 yrs | | | ### Strengths - **17.3 kg per kWp** - Top 2% of the 50-250 W band, against a median of 70.3. Ranked 54th in the whole database. - **18.60% module efficiency** - Top 20% of the 50-250 W band, against a median of 15.96%. ### Watch out for - **-0.420 %/°C temperature coefficient** - Bottom 5% of the 50-250 W band, against a median of -0.370. Ranked 13,796th in the whole database. - **Best for:** Residential, commercial, shaded-installations and hot-climate. - **Not ideal for:** Hot climates. ## Specification ### Electrical - **Rated power (Pmax):** 150 W - **Efficiency:** 18.60 % - **Voltage at Pmax (Vmp):** 19.51 V - **Current at Pmax (Imp):** 7.69 A - **Open-circuit voltage (Voc):** 23.83 V - **Short-circuit current (Isc):** 8.16 A - **Max system voltage:** 600 V ### Temperature - **Temperature coefficient of Pmax:** -0.420 %/degC - **Temperature coefficient of Voc:** -0.320 %/degC - **Temperature coefficient of Isc:** 0.040 %/degC ### Cell and construction - **Cell type:** Monocrystalline - **Cell technology:** Back Contact - **Cell count:** 36 ### Physical - **Length:** 1460 mm - **Width:** 670 mm - **Thickness:** 3 mm - **Weight:** 2.6 kg - **Area:** 0.98 m2 - **Power density:** 153.3 Wp/m2 ### Warranty and degradation ## Rank in the whole catalogue | Measure | Position | | --- | --- | | Efficiency | 13087 of 14005 | | Power density | 13733 of 14005 | | Temperature coefficient | 13796 of 14005 | | Weight | 54 of 14005 | | Warranty | 13880 of 14005 | ## About this series The Top Solar TS-EFS panel series is based on innovative **shingled technology**, which revolutionizes the way silicon cells are connected. Thanks to the dense arrangement of overlapping silicon layers, these modules eliminate traditional busbars, which significantly increases the active area of the panel and minimizes energy losses. This solution effectively reduces the problem of point thermal stresses, which translates into **exceptional resistance to micro-cracks** and a significantly longer lifespan of the entire installation. These panels are an ideal choice for investors seeking maximum efficiency from a limited roof area, while offering **excellent full black aesthetics** that blend perfectly with modern architecture. The special design ensures better performance in partial shading and low light conditions, which is crucial in the Polish climate for maintaining a stable energy yield throughout the year. The TS-EFS series stands out from the competition with its **low temperature coefficient**, which guarantees high efficiency even on hot days. This solution is dedicated to both demanding home users and companies focusing on **reliability and a quick return on investment** in renewable energy sources. ## Notable figures - Efficiency of 18.6% is 2.6pp below the \*\*Back Contact 0-400W\*\* median (21.2%) - 153.3 W/m² power density is 58.8 W/m² below \*\*Back Contact 0-400W\*\* median (212.1 W/m²) - requires larger installation area - Temperature coefficient of -0.42%/°C is 0.15pp worse than \*\*Back Contact 0-400W\*\* median (-0.27%/°C) - higher losses in summer heat - 2.6 kg weight - 16.4 kg lighter than \*\*Back Contact 0-400W\*\* median (19.0 kg), reducing installation effort - #13087 for efficiency, #13796 for temperature performance out of 14005 panels ## Questions ### Can the Top Solar TS-EFS150 panel be mounted on a curved surface, such as a camper van or boat roof? Yes, the TS-EFS150 series is a flexible ETFE panel that can be bent to the curve radius typical of camper van roofs, boats, or caravans. The flexible construction combined with shingled cell technology and Back Contact cells maintains high efficiency even when installed on a curved surface, without the crack risk typical of rigid glass modules. ### How does the shingled technology used in the TS-EFS series differ from conventional busbar-connected panels? In conventional panels, cells are connected with visible busbars, which reduces the active surface area and creates stress points prone to microcracks. In the TS-EFS series, thin silicon strips overlap like roof shingles, eliminating busbars entirely. This gives the panel a larger active area, lower energy losses, and higher resistance to thermal stress, resulting in a longer module lifespan. ### Do the Back Contact cells in the TS-EFS150 deliver noticeably higher efficiency than standard monocrystalline panels? Yes, Back Contact cells move all electrical contacts to the rear side, so the front surface isn't shaded by metal grid lines. This allows more effective light absorption and higher conversion efficiency compared to standard PERC cells. In practice this means more energy output from the same surface area, with the advantage especially noticeable under low-light and partial-shading conditions. ### How much does the Top Solar TS-EFS150 panel weigh, and can it be installed without professional help? The 150 Wp flexible panels in the EFS series are significantly lighter than traditional glass-and-aluminum-framed modules, thanks to a thin ETFE laminate replacing tempered glass. Installation typically involves bonding the panel to the surface with suitable adhesive or securing it through mounting grommets, making DIY installation possible without building an additional support structure, unlike rigid panels. ### Does the TS-EFS150 panel perform well in cold weather and Poland's winter climate? Yes, the TS-EFS series features a low temperature coefficient, meaning smaller efficiency losses during hot summer days while maintaining stable output in winter. The shingled construction also performs better under low-irradiance conditions common during Polish autumn and winter months, resulting in more consistent energy yield throughout the year compared to traditional panels. ### Are Top Solar TS-EFS150 panels bifacial, capturing energy from reflected light on the rear side? No, the TS-EFS150 series panels are not bifacial modules — they generate power only from the front side. Rather than adding rear-side gain, the panel focuses on maximizing front-side efficiency through Back Contact technology and densely packed shingled cells, which is more practical for direct mounting on roofs, boat hulls, or camper van bodies where the rear side has no light access. ## Datasheet [Manufacturer datasheet (PDF)](https://comparepv.com/datasheets/150W-ETFE-mono-flexible-solar-panel-b0e69534d487.pdf) ## Alternatives | Panel | Power | How it differs | | --- | --- | --- | | [Gamko New Energy GKA182M150W](https://comparepv.com/panel/gamko-new-energy-gka182m150w) | 150 W | Heavier, +4.4 pp | | [Gamko New Energy GKA182M160W](https://comparepv.com/panel/gamko-new-energy-gka182m160w) | 160 W | +10 W, heavier, +4.4 pp | | [Gamko New Energy GKA182M180W](https://comparepv.com/panel/gamko-new-energy-gka182m180w) | 180 W | +30 W, heavier, +4.4 pp | | [Gamko New Energy GKA182M200W](https://comparepv.com/panel/gamko-new-energy-gka182m200w) | 200 W | +50 W, heavier, +4.4 pp | | [Gamko New Energy GKA182M120W](https://comparepv.com/panel/gamko-new-energy-gka182m120w) | 120 W | -30 W, heavier, +4.4 pp | | [Gamko New Energy GKA182M135W](https://comparepv.com/panel/gamko-new-energy-gka182m135w) | 135 W | -15 W, heavier, +4.4 pp | | [Gamko New Energy GKA182M100W](https://comparepv.com/panel/gamko-new-energy-gka182m100w) | 100 W | -50 W, heavier, +4.4 pp | | [Gamko New Energy GKA182M110W](https://comparepv.com/panel/gamko-new-energy-gka182m110w) | 110 W | -40 W, heavier, +4.4 pp | | [JA Solar NS-100MH-36](https://comparepv.com/panel/ja-solar-ns-100mh-36) | 100 W | -50 W, cooler, +2.7 pp | | [PolyCrown Solar Tech NS-100MH-36](https://comparepv.com/panel/polycrown-solar-tech-ns-100mh-36) | 100 W | -50 W, cooler, +2.7 pp | | [Heckert Solar ZEUS 1.2 FullBlack 280W](https://comparepv.com/panel/heckert-solar-zeus-1-2-fullblack-280w) | 280 W | +130 W, cooler, +4.7 pp | | [Gamko New Energy GKA182M285W](https://comparepv.com/panel/gamko-new-energy-gka182m285w) | 285 W | +135 W, heavier, +4.4 pp | | [Gamko New Energy GKA182M240W](https://comparepv.com/panel/gamko-new-energy-gka182m240w) | 240 W | +90 W, heavier, +4.4 pp | | [Gamko New Energy GKA182M260W](https://comparepv.com/panel/gamko-new-energy-gka182m260w) | 260 W | +110 W, heavier, +4.4 pp | | [Gamko New Energy GKA182M270W](https://comparepv.com/panel/gamko-new-energy-gka182m270w) | 270 W | +120 W, heavier, +4.4 pp | | [DMEGC DM270M10T-B32HBT](https://comparepv.com/panel/hengdian-group-dmegc-magnetics-co-ltd-dmegc-solar-dm270m10t-b32hbt) | 270 W | Cooler, heavier, +4.3 pp | --- Source: https://comparepv.com/panel/top-solar-ts-efs150m Not in this file, on the page: a thirty-year output simulator and alternatives filtered by how closely they match these dimensions.