--- title: "Renesola YH120W-18M 120W Solar Panel - Specs & Review | ComparePV" description: "Renesola YH120W-18M 120W solar panel. Specs: 19.63% efficiency, Monocrystalline cells, dimensions, warranty and temperature coefficient." source: "https://comparepv.com/panel/renesola-yh120w-18m" updated: 2026-09-11 --- # Renesola YH120W-18M Space saver, no clear weak spot 296 panels in the 20-220 W band, all technologies ## Identity - **Manufacturer:** Renesola - **Model:** YH120W-18M - **Series:** 210M Split Cell 115W–120W - **Rated power:** 120 W - **Cell technology:** TOPCon ## How it compares Compared against 20-220 W band, all technologies (296 panels). | Measure | This panel | Segment median | Standing | Rank | | --- | --- | --- | --- | --- | | Power (Wp) | 120 W | 160 W | Typical | | | Module efficiency | 19.63% | 15.88% | Strong - top 10% | 12,576 | | Power density | 196.3 | 158.7 | Strong - top 9% | 12,562 | | Temperature coefficient | -0.350 | -0.370 | Strong - top 20% | 10,419 | | Weight (kg) | 6.4 kg | 11.3 kg | Strong - top 13% | | | Performance warranty | 30 yrs | 25 yrs | Strong - top 16% | 21 | ### Full peer table | Measure | This panel | Segment median | Standing | Rank | | --- | --- | --- | --- | --- | | Module efficiency | 19.63% | 15.88% | Strong - top 10% | 12,576 | | Power density | 196.3 | 158.7 | Strong - top 9% | 12,562 | | Temperature coefficient | -0.350 | -0.370 | Strong - top 20% | 10,419 | | Weight per kWp | 53.5 | 71.2 | Strong - top 13% | 7,475 | | Performance warranty | 30 yrs | 25 yrs | Strong - top 16% | 21 | ### Strengths - **196.3 watts per square metre** - Top 9% of the 20-220 W band, against a median of 158.7. Ranked 12,562nd in the whole database. - **19.63% module efficiency** - Top 10% of the 20-220 W band, against a median of 15.88%. - **53.5 kg per kWp** - Top 13% of the 20-220 W band, against a median of 71.2. - **Best for:** Off-grid and shaded-installations. ## Specification ### Electrical - **Rated power (Pmax):** 120 W - **Efficiency:** 19.63 % - **Voltage at Pmax (Vmp):** 21.24 V - **Current at Pmax (Imp):** 5.65 A - **Open-circuit voltage (Voc):** 24.73 V - **Short-circuit current (Isc):** 5.95 A - **Max system voltage:** 1000 V ### Temperature - **Temperature coefficient of Pmax:** -0.350 %/degC - **Temperature coefficient of Voc:** -0.250 %/degC - **Temperature coefficient of Isc:** 0.040 %/degC - **NOCT:** 45 degC ### Cell and construction - **Cell type:** Monocrystalline - **Cell technology:** TOPCon - **Cell count:** 36 ### Physical - **Length:** 915 mm - **Width:** 668 mm - **Thickness:** 30 mm - **Weight:** 6.4 kg - **Area:** 0.61 m2 - **Power density:** 196.3 Wp/m2 ### Warranty and degradation - **Product warranty:** 30 years - **Performance warranty:** 30 years - **Output guaranteed at end of warranty:** 80.0 % - **First-year degradation:** 1.00 % - **Output after 30 years:** 96 W ## Rank in the whole catalogue | Measure | Position | | --- | --- | | Efficiency | 12576 of 14005 | | Power density | 12562 of 14005 | | Temperature coefficient | 10419 of 14005 | | Weight | 7475 of 14005 | | Warranty | 21 of 14005 | ## Pros - **N-type TOPCon cells** - TOPCon technology delivers 18.81-19.63% efficiency, clearly above peer comparables LinkSol LKS-5M-95-115W (17.2%) and Trina Solar TEG/Solar Tiles (18.5%). N-type cells also mean lower LID degradation compared to older P-type/PERC cells used in competing panels of similar format. - **Split cell reduces shading losses** - Split cell design lowers series resistance and reduces current losses under partial shading, cutting hot-spot risk - a real advantage for campers, boats, and off-grid systems where shading is far more common than on large rooftop arrays. - **Multi-busbar improves mechanical durability** - Multi-busbar cell interconnection improves current collection and reduces power loss from microcracks caused by transport or installation - valuable for DIY and mobile applications where the panel is more exposed to vibration and shock. - **30/30-year product and power warranty** - A full 30 years of both product and power warranty stands out versus typical terms in the small-panel segment (usually 10-12 years product, 25 years power) - an unusually long coverage period for a 115-120 W format module. - **Strong low-irradiance performance** - The module design delivers steadier output under low irradiance conditions - relevant in the Polish climate during mornings, evenings, and overcast days, translating into higher real-world energy yield relative to nominal STC ratings. ## Cons - **Production discontinued in 2020** - The series was manufactured from 2014 to 2020 and is now discontinued. This means limited availability of warranty service and replacement parts, plus difficulty matching modules when expanding an existing installation. - **Low unit power limits use cases** - At 115-120 Wp, the module is impractical for standard rooftop installations or PV farms, where module count and wiring length scale proportionally. The series fits niche applications (off-grid, campers, boats, DIY) rather than mainstream prosumer solar. ## About this series The Renesola 210M Split Cell series, with a power output of 115W-120W, is designed for installations where maximizing efficiency on a limited surface area and stable performance in varying conditions are crucial. The use of **split cell technology** minimizes energy losses due to current flow within the cells, resulting in improved performance under partial shading and a reduced risk of localized overheating. The modules utilize **multi-busbar interconnection**, which improves current collection and increases resistance to micro-cracks that may occur during transportation or installation. Another advantage is **excellent response to low sunlight**, which is important in the Polish climate, especially in the mornings, evenings, and on cloudy days. This series is suitable for off-grid systems, campervans and boats, small emergency power systems, as well as DIY projects. If you are looking for a compact module that can effectively "tolerate" challenging operating conditions, then the **210M Split Cell** is a reasonable alternative to many traditional panels of similar size. ## Notable figures - Efficiency of 19.6% is 3.6pp above the \*\*TOPCon 0-400W\*\* median (16.0%) - Power density of 196.3 W/m² packs 36.5 W/m² more into the same footprint vs \*\*TOPCon 0-400W\*\* median (159.8 W/m²) - At -0.35%/°C, loses 0.06pp more power per degree than \*\*TOPCon 0-400W\*\* median (-0.29%/°C) - At 6.4 kg, this panel is 17.1 kg lighter than \*\*TOPCon 0-400W\*\* median (23.5 kg) - easier handling during installation - In the top 90% for efficiency among all TOPCon panels ## Questions ### Is the Renesola 210M Split Cell 115W–120W series still available for purchase? The Renesola 210M Split Cell 115W–120W series has been discontinued and is no longer part of the regular distribution lineup. You may still find it as leftover stock at select distributors or on the secondary market. If you need panels with similar specifications for off-grid, RV, or marine use, ask your supplier about current alternatives in the 100–150 W range featuring half-cut or TOPCon cell technology. ### What warranty does Renesola offer on the 210M Split Cell panels? Renesola provides a 30-year product warranty covering defects in materials and workmanship, along with a 30-year linear power output warranty. This is one of the longer warranty periods available in this power class and guarantees that the module will retain a specified minimum percentage of its rated power after 30 years. Keep your purchase invoice, as it will be required to support any warranty claim. ### What does split cell technology mean in the Renesola 210M panels and does it make a real difference? Split cell technology cuts each solar cell in half, which reduces current flow and lowers resistive losses within the module. In practical terms, the panel handles partial shading better, for example from a chimney or mast, and degrades less in high-temperature conditions. For RV and boat owners where shading is often unavoidable, this translates into measurably higher energy yields throughout the day. ### Are the Renesola 210M Split Cell 120W panels suitable for powering an RV or a boat? Yes, this series was designed with mobile and off-grid applications in mind: campervans, sailboats, caravans, and small emergency power systems. The compact form factor and up to 120 W output make the module a practical fit for an RV roof or boat deck, while good low-light response allows battery charging even on overcast days or at low sun angles. Make sure your charge controller (MPPT or PWM) is matched to the module's voltage and current ratings. ### Do the Renesola 210M Split Cell panels use TOPCon cells and how does that compare to PERC? Yes, the 210M Split Cell series uses TOPCon (Tunnel Oxide Passivated Contact) cell technology. Compared to standard PERC cells, TOPCon delivers higher conversion efficiency and a lower temperature coefficient, meaning less power loss on hot days. This results in higher annual energy yield for the same module footprint, which matters when roof or deck space is limited. ### Is Renesola a reliable manufacturer and should I be concerned about panel quality? Renesola is classified as a Tier 1 manufacturer in industry rankings, confirming its capacity to finance projects and maintain consistent production standards. The company is headquartered in China and has supplied modules to European markets for many years. The 30-year product warranty reflects the declared durability of the product. Keep in mind that since the 210M Split Cell series is discontinued, warranty service depends on the policy of the local distributor or importer. ## Datasheet [Manufacturer datasheet (PDF)](https://comparepv.com/datasheets/115w-120w-915x668x30-d1fa40db231c.pdf) ## Alternatives | Panel | Power | How it differs | | --- | --- | --- | | [Gamko New Energy GKA182M150W](https://comparepv.com/panel/gamko-new-energy-gka182m150w) | 150 W | +30 W, heavier, +3.4 pp | | [Gamko New Energy GKA182M160W](https://comparepv.com/panel/gamko-new-energy-gka182m160w) | 160 W | +40 W, heavier, +3.4 pp | | [Gamko New Energy GKA182M120W](https://comparepv.com/panel/gamko-new-energy-gka182m120w) | 120 W | +3.4 pp | | [Gamko New Energy GKA182M135W](https://comparepv.com/panel/gamko-new-energy-gka182m135w) | 135 W | +15 W, +3.4 pp | | [Gamko New Energy GKA182M100W](https://comparepv.com/panel/gamko-new-energy-gka182m100w) | 100 W | -20 W, +3.4 pp | | [Gamko New Energy GKA182M110W](https://comparepv.com/panel/gamko-new-energy-gka182m110w) | 110 W | -10 W, +3.4 pp | | [JA Solar NS-100MH-36](https://comparepv.com/panel/ja-solar-ns-100mh-36) | 100 W | Cooler, +1.7 pp, -5 yr warranty | | [PolyCrown Solar Tech NS-100MH-36](https://comparepv.com/panel/polycrown-solar-tech-ns-100mh-36) | 100 W | Cooler, +1.7 pp, -5 yr warranty | | [Easun Power YH100W-12M](https://comparepv.com/panel/easun-power-yh100w-12m) | 100 W | -20 W, hotter, lighter | | [Renesola YH115W-18M](https://comparepv.com/panel/renesola-yh115w-18m) | 115 W | -0.8 pp | | [Isola New Energy YH120W-18M](https://comparepv.com/panel/isola-new-energy-yh120w-18m) | 120 W | Very close match | | [Isola New Energy YH115W-18M](https://comparepv.com/panel/isola-new-energy-yh115w-18m) | 115 W | -0.8 pp | | [LinkSol LKS-5M-115](https://comparepv.com/panel/linksol-lks-5m-115) | 115 W | -2.4 pp | | [Longi Solar DLXN-M10-100W](https://comparepv.com/panel/longi-solar-dlxn-m10-100w) | 100 W | -20 W, hotter, -2.6 pp | | [Wanze Energy DLXN-M10-100W](https://comparepv.com/panel/wanze-energy-dlxn-m10-100w) | 100 W | Hotter, -2.6 pp, -20 yr warranty | | [LinkSol LKS-5M-110](https://comparepv.com/panel/linksol-lks-5m-110) | 110 W | -10 W, -3.1 pp | --- Source: https://comparepv.com/panel/renesola-yh120w-18m Not in this file, on the page: a thirty-year output simulator and alternatives filtered by how closely they match these dimensions.