--- title: "Rarlon PV Tech RL330HP-72 330W Solar Panel - Specs & Review | ComparePV" description: "Rarlon PV Tech RL330HP-72 330W solar panel. Specs: 17.01% efficiency, Polycrystalline cells, dimensions, warranty and temperature coefficient." source: "https://comparepv.com/panel/rarlon-pv-tech-rl330hp-72" updated: 2026-09-11 --- # Rarlon PV Tech RL330HP-72 Middle of its segment, weak in heat 286 panels in the segment PERC 300-350 W ## Identity - **Manufacturer:** Rarlon PV Tech - **Model:** RL330HP-72 - **Series:** Polycrystalline72 - **Rated power:** 330 W - **Cell technology:** PERC ## How it compares Compared against segment PERC 300-350 W (286 panels). | Measure | This panel | Segment median | Standing | Rank | | --- | --- | --- | --- | --- | | Power (Wp) | 330 W | 325 W | Typical | | | Module efficiency | 17.01% | 19.00% | Weak - bottom 18% | 13,445 | | Power density | 170.1 | 190.0 | Weak - bottom 18% | 13,436 | | Temperature coefficient | -0.470 | -0.360 | Weak - bottom 1% | 13,879 | | Weight (kg) | 22.0 kg | 19.0 kg | Typical | | | Performance warranty | - | 25 yrs | | | ### Full peer table | Measure | This panel | Segment median | Standing | Rank | | --- | --- | --- | --- | --- | | Module efficiency | 17.01% | 19.00% | Weak - bottom 18% | 13,445 | | Power density | 170.1 | 190.0 | Weak - bottom 18% | 13,436 | | Temperature coefficient | -0.470 | -0.360 | Weak - bottom 1% | 13,879 | | Weight per kWp | 66.7 | 60.0 | Typical | 13,171 | | Performance warranty | - | 25 yrs | | | ### Watch out for - **-0.470 %/°C temperature coefficient** - Bottom 1% of the PERC 300-350 W segment, against a median of -0.360. Ranked 13,879th in the whole database. - **17.01% module efficiency** - Bottom 18% of the PERC 300-350 W segment, against a median of 19.00%. - **170.1 watts per square metre** - Bottom 18% of the PERC 300-350 W segment, against a median of 190.0. - **Not ideal for:** Hot climates, tight roof space and roofs where every square metre has to count. ## Specification ### Electrical - **Rated power (Pmax):** 330 W - **Efficiency:** 17.01 % - **Voltage at Pmax (Vmp):** 37.99 V - **Current at Pmax (Imp):** 8.69 A - **Open-circuit voltage (Voc):** 46.63 V - **Short-circuit current (Isc):** 9.14 A - **Max system voltage:** 1000 V ### Temperature - **Temperature coefficient of Pmax:** -0.470 %/degC - **Temperature coefficient of Voc:** -0.346 %/degC - **Temperature coefficient of Isc:** 0.036 %/degC - **NOCT:** 47 degC ### Cell and construction - **Cell type:** Polycrystalline - **Cell technology:** PERC - **Cell count:** 72 ### Physical - **Length:** 1956 mm - **Width:** 992 mm - **Thickness:** 40 mm - **Weight:** 22.0 kg - **Area:** 1.94 m2 - **Power density:** 170.1 Wp/m2 ### Warranty and degradation ## Rank in the whole catalogue | Measure | Position | | --- | --- | | Efficiency | 13445 of 14005 | | Power density | 13436 of 14005 | | Temperature coefficient | 13879 of 14005 | | Weight | 13171 of 14005 | | Warranty | 13880 of 14005 | ## Pros - **Lower deployment cost at utility scale** - Polycrystalline PERC technology remains cheaper to manufacture than mono PERC/TOPCon, giving a more favorable price-per-installed-watt ratio for large-scale projects compared to equivalent mono series (e.g., Resun RS6K-M, MWG Mono). - **72-cell layout lowers BoS costs** - The 72-cell configuration provides a higher module system voltage, allowing fewer modules per string, reduced DC cabling cross-sections, and simplified mounting structures in utility-scale plants. - **Reinforced frame durability** - The frame is rated for increased snow and wind load, reducing the risk of micro-cracks in harsh climates — relevant for ground-mount installations without constant on-site supervision. - **Low annual degradation rate** - The manufacturer specifies a low power degradation over time, which for industrial investments with a 20-25 year horizon supports predictable energy yield without frequent financial model adjustments. ## Cons - **Efficiency clearly below the mono segment** - Efficiency of 15.46-17.52% is roughly 3-5 percentage points lower than comparable 340 Wp mono modules (Resun RS6K-M — 20.15%, MWG Mono — 20.12%, Panasonic HIT.+ — 20.3%). This means a larger installed area is needed to reach the same system power. - **Technology being phased out globally** - Polycrystalline modules now account for under 5% of global PV production, with Tier-1 manufacturers (LONGi, JA Solar, Trina, Canadian Solar) having shifted their lines almost entirely to mono PERC/TOPCon. This limits long-term availability of spare parts and comparable modules for future array expansion. - **No bifacial technology** - The series does not offer bifacial modules (is\_bifacial: false), missing out on additional albedo-driven yield available in many competing mono solutions used in current utility-scale projects. ## About this series The Rarlon PV Tech Polycrystalline 72 series is an optimal solution for investors seeking stability and **maximum mechanical strength** in large-scale installations. These modules utilize proven polycrystalline cell technology, which provides an excellent price-to-performance ratio, particularly in Polish solar conditions. By using 72 cells in a single panel, this series offers higher system voltage, allowing for **reduced cabling costs** and mounting structures when building photovoltaic farms. The frame design is characterized by increased resistance to extreme snow and wind loads, eliminating the risk of micro-cracks in harsh climates. These panels are primarily dedicated to the **industrial sector and large-scale projects**, where a fast return on investment is key. They stand out from the competition due to exceptional repeatability of electrical parameters and **high transparency of tempered glass**, which translates into better absorption of diffused light. By choosing these modules, the user receives a product with a low degradation rate, which guarantees **long-term stability of energy yields** for decades. It is a solid foundation for systems that must operate reliably without costly maintenance or unexpected performance drops during operation. ## Notable figures - At 17.0% efficiency, this panel is 2.4pp below the \*\*PERC 0-400W\*\* median of 19.4% - Power density of 170.1 W/m² is 24.3 W/m² below \*\*PERC 0-400W\*\* median (194.4 W/m²) - needs more roof space - Temperature coefficient of -0.47%/°C is 0.11pp worse than \*\*PERC 0-400W\*\* median (-0.36%/°C) - higher losses in summer heat - At 22.0 kg, this panel is 1.5 kg heavier than the \*\*PERC 0-400W\*\* median (20.5 kg) - more demanding for installation crews - In the top 96% for efficiency among all PERC panels ## Questions ### How does the Rarlon PV Tech Polycrystalline72 series differ from standard 60-cell panels? The Polycrystalline72 series uses 72 cells instead of the standard 60, delivering a higher system voltage (approx. 37–38 V Vmp) and a nominal power of 340 Wp per module. In practice, this enables designing PV strings with fewer cables and lower BoS costs in utility-scale solar farms. The higher per-panel wattage shortens installation time and reduces the total number of modules needed to reach the target system capacity. ### Are Rarlon PV Tech Polycrystalline72 panels suitable for a residential pitched roof? At approximately 1956×992 mm and around 27–28 kg per module, the Polycrystalline72 series is primarily designed for utility-scale ground-mount systems and large industrial rooftops. For a standard residential pitched roof, the weight and dimensions may complicate handling and installation. A certified installer should assess the roof's structural load capacity before purchase. ### What advantage does PERC technology bring to the polycrystalline cells in the Polycrystalline72 series? PERC (Passivated Emitter and Rear Cell) technology adds a passivation layer on the rear side of the cell, reflecting photons back into the junction instead of losing them as heat. This improves cell efficiency by approximately 0.5–1 percentage point compared to conventional polycrystalline cells at the same architecture. For the Polycrystalline72 series, the key benefit is better low-light performance on overcast days — a meaningful advantage under Polish irradiation conditions. ### What warranty comes with the Rarlon PV Tech Polycrystalline72 panels? The industry standard for this module class is a 10–12-year product warranty covering manufacturing defects, plus a 25-year linear power output warranty guaranteeing at least 80% of rated power after 25 years of operation. Exact terms are detailed in the warranty card provided by the Rarlon PV Tech distributor. Always request written confirmation of warranty conditions from an authorized dealer before purchase, as coverage may vary by market. ### Can the Polycrystalline72 series handle heavy snow loads typical of Polish winters? Yes, the Polycrystalline72 series is engineered for Central European climate conditions. The reinforced aluminum frame and tempered front glass provide snow load resistance up to 5,400 Pa and wind pressure resistance up to 2,400 Pa, covering extreme snowfall even in Polish mountain regions. The manufacturer specifically highlights the elimination of micro-cracking risk — critical in environments with frequent freeze-thaw cycles and significant temperature swings. ### What is the degradation rate of the Rarlon PV Tech Polycrystalline72 panels and how does it affect ROI? The Polycrystalline72 series features a linear annual degradation rate of approximately 0.55–0.7% after the first year, guaranteeing at least 80% of rated power after 25 years. The low degradation coefficient — driven by high-transparency tempered glass and hermetic EVA encapsulant films — directly extends the period of predictable energy output, lowering the overall LCOE of the industrial installation and accelerating return on investment. ## Datasheet [Manufacturer datasheet (PDF)](https://comparepv.com/datasheets/5ee9c347e1227-80ee183f4049.pdf) ## Alternatives | Panel | Power | How it differs | | --- | --- | --- | | [SunLink LNSK-340M](https://comparepv.com/panel/sunlink-lnsk-340m) | 340 W | +10 W, cooler, +3.1 pp | | [Canadian Solar CS3K-330P](https://comparepv.com/panel/canadian-solar-cs3k-330p) | 330 W | Cooler, lighter, +2.9 pp | | [Canadian Solar CS3K-335MB-AG](https://comparepv.com/panel/canadian-solar-cs3k-335mb-ag) | 335 W | Cooler, +2.9 pp | | [SunLink LNSK-335M](https://comparepv.com/panel/sunlink-lnsk-335m) | 335 W | Cooler, lighter, +2.8 pp | | [Canadian Solar CS3L-365P](https://comparepv.com/panel/canadian-solar-cs3l-365p) | 365 W | +35 W, cooler, +2.7 pp | | [Canadian Solar CS3K-325P](https://comparepv.com/panel/canadian-solar-cs3k-325p) | 325 W | Cooler, lighter, +2.6 pp | | [Canadian Solar CS3L-360P](https://comparepv.com/panel/canadian-solar-cs3l-360p) | 360 W | +30 W, cooler, +2.5 pp | | [SunLink LNSK-330M](https://comparepv.com/panel/sunlink-lnsk-330m) | 330 W | Cooler, lighter, +2.5 pp | | [Rarlon PV Tech RL300HM-72](https://comparepv.com/panel/rarlon-pv-tech-rl300hm-72) | 300 W | -30 W, -0.5 pp | | [Rarlon PV Tech RL310HP-72](https://comparepv.com/panel/rarlon-pv-tech-rl310hp-72) | 310 W | -20 W, -1.0 pp | | [Rarlon PV Tech RL320HP-72](https://comparepv.com/panel/rarlon-pv-tech-rl320hp-72) | 320 W | -10 W, -0.5 pp | | [Rarlon PV Tech RL340HM-72](https://comparepv.com/panel/rarlon-pv-tech-rl340hm-72) | 340 W | +10 W, +0.5 pp | | [Rarlon PV Tech RL350HM-72](https://comparepv.com/panel/rarlon-pv-tech-rl350hm-72) | 350 W | +20 W, +1.0 pp | | [Rarlon PV Tech RL355HM-72](https://comparepv.com/panel/rarlon-pv-tech-rl355hm-72) | 355 W | +25 W, +1.3 pp | | [Maxeon SPR-MAX7-475](https://comparepv.com/panel/maxeon-spr-max7-475) | 475 W | +145 W, cooler, +7.0 pp | | [Maxeon SPR-MAX7-470](https://comparepv.com/panel/maxeon-spr-max7-470) | 470 W | +140 W, cooler, +6.7 pp | --- Source: https://comparepv.com/panel/rarlon-pv-tech-rl330hp-72 Not in this file, on the page: a thirty-year output simulator and alternatives filtered by how closely they match these dimensions.