--- title: "Goldi Solar GS10-M144-WF-535 535W Solar Panel - Specs & Review | ComparePV" description: "Goldi Solar GS10-M144-WF-535 535W solar panel. Specs: 20.72% efficiency, Monocrystalline cells, dimensions, warranty and temperature coefficient." source: "https://comparepv.com/panel/goldi-solar-gs10-m144-wf-535" updated: 2026-09-11 --- # Goldi Solar GS10-M144-WF-535 Strong in heat, no clear weak spot 706 panels in the segment PERC 500-550 W ## Identity - **Manufacturer:** Goldi Solar - **Model:** GS10-M144-WF-535 - **Series:** HELOC PRO GS10-M144-WF - **Rated power:** 535 W - **Cell technology:** PERC ## How it compares Compared against segment PERC 500-550 W (706 panels). | Measure | This panel | Segment median | Standing | Rank | | --- | --- | --- | --- | --- | | Power (Wp) | 535 W | 535 W | Typical | | | Module efficiency | 20.72% | 20.90% | Typical | 10,716 | | Power density | 207.2 | 209.0 | Typical | 10,743 | | Temperature coefficient | -0.340 | -0.350 | Strong - top 23% | 8,778 | | Weight (kg) | 28.0 kg | 28.4 kg | Typical | | | Performance warranty | 30 yrs | 30 yrs | Typical | 21 | ### Full peer table | Measure | This panel | Segment median | Standing | Rank | | --- | --- | --- | --- | --- | | Module efficiency | 20.72% | 20.90% | Typical | 10,716 | | Power density | 207.2 | 209.0 | Typical | 10,743 | | Temperature coefficient | -0.340 | -0.350 | Strong - top 23% | 8,778 | | Weight per kWp | 52.3 | 53.0 | Typical | 5,807 | | Performance warranty | 30 yrs | 30 yrs | Typical | 21 | ### Strengths - **-0.340 %/°C temperature coefficient** - Top 23% of the PERC 500-550 W segment, against a median of -0.350. - **Best for:** Commercial, utility-scale and residential. ## Specification ### Electrical - **Rated power (Pmax):** 535 W - **Efficiency:** 20.72 % - **Voltage at Pmax (Vmp):** 41.75 V - **Current at Pmax (Imp):** 12.80 A - **Open-circuit voltage (Voc):** 50.40 V - **Short-circuit current (Isc):** 13.28 A - **Max system voltage:** 1500 V ### Temperature - **Temperature coefficient of Pmax:** -0.340 %/degC - **Temperature coefficient of Voc:** -0.280 %/degC - **Temperature coefficient of Isc:** 0.048 %/degC - **NOCT:** 45 degC ### Cell and construction - **Cell type:** Monocrystalline - **Cell technology:** PERC - **Cell count:** 144 ### Physical - **Length:** 2279 mm - **Width:** 1133 mm - **Thickness:** 35 mm - **Weight:** 28.0 kg - **Area:** 2.58 m2 - **Power density:** 207.2 Wp/m2 ### Warranty and degradation - **Product warranty:** 12 years - **Performance warranty:** 30 years - **Output guaranteed at end of warranty:** 84.8 % - **First-year degradation:** 2.00 % - **Annual degradation:** 0.55 % - **Output after 30 years:** 439 W ## Rank in the whole catalogue | Measure | Position | | --- | --- | | Efficiency | 10716 of 14005 | | Power density | 10743 of 14005 | | Temperature coefficient | 8778 of 14005 | | Weight | 5807 of 14005 | | Warranty | 21 of 14005 | ## Pros - **30-year linear power warranty** - The manufacturer offers a 30-year performance warranty, while most comparable PERC-segment series (including competing 555 Wp modules) still rely on the 25-year standard. This extends the investment protection period by 5 years at no additional module cost. - **BloombergNEF Tier-1 status** - Goldi Solar appears on the BNEF Tier-1 manufacturer list, confirming module financing by at least six different non-recourse banks over the past two years. The manufacturer has operated since 2011, providing over a decade of track record relevant to project bankability assessment. - **PID resistance and IP68 junction box** - High resistance to potential-induced degradation (PID) reduces power loss risk in large-scale farm installations with long string chains, while the IP68-rated junction box protects electrical components from moisture and dust in harsh climatic conditions. - **Multi-busbar for improved low-light performance** - Multi-busbar technology combined with textured, high-transmission glass improves current collection from cells and boosts energy yield during overcast conditions and morning/evening hours, meaningfully impacting annual output in temperate climates. - **Competitive efficiency within the PERC segment** - The maximum efficiency of 21.49% is on par with rivals in the same segment (ET Solar Elite PLUS 21.4%, Boviet VEGA 21.3%, JA Solar DEEP BLUE 3.0 21.5%), confirming the series holds its own technologically despite relying on the older PERC architecture. ## Cons - **No bifacial variant available** - The series is offered only in a monofacial configuration, while some competitors in this power segment (525-555 Wp) offer bifacial modules that generate an additional 5-15% energy from albedo reflection. This limits the series' appeal for ground-mount installations on high-reflectivity surfaces, where bifacial provides a measurable advantage. - **PERC technology instead of N-type** - PERC cells trail newer N-type technologies (TOPCon, HJT) in terms of LID/LeTID degradation rates and temperature power coefficients, which are becoming the standard in the premium 550+ Wp segment as of 2026. This may result in a somewhat faster power decline in the first years of operation compared to the latest N-type designs. - **12-year product warranty below the leading edge** - The materials and workmanship warranty stands at 12 years, while some Tier-1 manufacturers in this segment (particularly at 550+ Wp) are shifting toward 15-year product warranties, placing HELOC PRO slightly behind the newest market offerings in this respect. ## About this series The HELOC PRO GS10-M144-WF series consists of monocrystalline PERC modules engineered to keep installation costs down while maintaining strong durability under demanding climate conditions. The **multi-busbar technology** ensures even current collection across the cell and minimizes resistive losses, translating into stable output throughout the module's operating life. Thanks to a textured cell surface and high-transmission glass, the panels deliver **excellent performance in low-light conditions**, which matters in practice on overcast days or during the early morning and evening production hours. The series is also notable for its **strong resistance to potential-induced degradation (PID)**, reducing the risk of power loss in large-scale solar farms and densely packed module rows. The **IP68-rated junction box** protects the electrical components from moisture and dust even in extreme weather. The module's design targets **lower LCOE and reduced BoS costs**, shortening the investment payback period. This makes it a fitting choice for investors seeking proven, industrial-grade PERC cell quality across commercial, industrial, agricultural, and residential installations, where both reliability and long-term cost-effectiveness matter. ## Notable figures - At 20.7% efficiency, this panel is on par with typical \*\*PERC 500-550W\*\* modules - Power density of 207.2 W/m² matches the \*\*PERC 500-550W\*\* median - Temperature coefficient of -0.34%/°C matches the \*\*PERC 500-550W\*\* median - In the top 77% for efficiency among all PERC panels ## Questions ### What is the maximum power output of the HELOC PRO GS10-M144-WF panels, and how many modules are needed for a typical 5 kW system? Panels from the HELOC PRO GS10-M144-WF series reach a maximum power output of 555 Wp. To build a roughly 5 kW system, only 9 modules are needed, which reduces the number of panels required on the roof and shortens installation time compared to older, lower-wattage series. ### Are Goldi Solar HELOC PRO panels suitable for densely packed rows in utility-scale PV farms? Yes, the HELOC PRO GS10-M144-WF series offers high resistance to potential-induced degradation (PID), which is critical for large solar farms where adjacent module rows are more exposed to power losses caused by potential differences. This helps maintain stable energy output throughout the system's operating life. ### What warranty comes with the HELOC PRO GS10-M144-WF panels and what does it cover? Goldi Solar provides a 12-year product warranty against material and workmanship defects, plus a 30-year linear power output warranty. This means the module is guaranteed to retain a specified percentage of its initial power even after that period, giving investors confidence in long-term return on investment. ### Do the HELOC PRO GS10-M144-WF panels perform well in low-light conditions, such as winter or cloudy days? Yes, thanks to the textured PERC cell surface and high-transmission glass, modules in this series maintain good efficiency even under low irradiance, resulting in more stable energy production during early morning, evening, and overcast conditions, not just in full sun. ### How does the multi-busbar technology in the HELOC PRO GS10-M144-WF differ from standard PERC panels? Multi-busbar technology increases the number of current-collecting paths on the cell, distributing current more evenly and reducing resistive losses compared to modules with fewer busbars. In practice, this results in higher module efficiency and lower risk of microcracks affecting power output over time. ### Is the junction box on Goldi Solar HELOC PRO panels resistant to moisture and dust, for example in agrivoltaic installations? Yes, the modules feature an IP68-rated junction box, providing full protection of electrical components against moisture, dust, and contaminants. This is important for agricultural and industrial installations, where panels face harsher environmental conditions than typical rooftop setups. ## Datasheet [Manufacturer datasheet (PDF)](https://comparepv.com/datasheets/GOLDI_Datasheet_GS10-M144-WF-525-Wp-555-Wp-V44-8cbfac3a3c55.pdf) ## Alternatives | Panel | Power | How it differs | | --- | --- | --- | | [Longi Solar LR7-54HJD-510M](https://comparepv.com/panel/longi-lr7-54hjd-510m) | 510 W | Cooler, lighter, +4.3 pp | | [AIKO AIKO-A495-MCE54Mw](https://comparepv.com/panel/aiko-aiko-a495-mce54mw) | 495 W | Cooler, lighter, +4.1 pp | | [Longi Solar LR7-60HVH-560M](https://comparepv.com/panel/longi-lr7-60hvh-560m) | 560 W | Cooler, lighter, +4.1 pp | | [Longi Solar LR7-54HJD-505M](https://comparepv.com/panel/longi-lr7-54hjd-505m) | 505 W | Cooler, lighter, +4.0 pp | | [Longi Solar LR7-60HVH-555M](https://comparepv.com/panel/longi-lr7-60hvh-555m) | 555 W | Cooler, lighter, +3.9 pp | | [AIKO AIKO-A490-MCE54Mw](https://comparepv.com/panel/aiko-aiko-a490-mce54mw) | 490 W | Cooler, lighter, +3.8 pp | | [Longi Solar LR7-54HJD-500M](https://comparepv.com/panel/longi-lr7-54hjd-500m) | 500 W | Cooler, lighter, +3.8 pp | | [Goldi Solar GS10-M144-BF-525](https://comparepv.com/panel/goldi-solar-gs10-m144-bf-525) | 525 W | -10 W, -0.4 pp, -5 yr warranty | | [Goldi Solar GS10-M144-BF-530](https://comparepv.com/panel/goldi-solar-gs10-m144-bf-530) | 530 W | -5 yr warranty | | [AIKO AIKO-A650-MAE72Mw](https://comparepv.com/panel/aiko-aiko-a650-mae72mw) | 650 W | +115 W, cooler, +4.5 pp | | [AIKO AIKO-A645-MAE72Mw](https://comparepv.com/panel/aiko-aiko-a645-mae72mw) | 645 W | +110 W, cooler, +4.3 pp | | [AIKO AIKO-A640-MAE72Mw](https://comparepv.com/panel/aiko-aiko-a640-mae72mw) | 640 W | +105 W, cooler, +4.1 pp | | [AIKO AIKO-A635-MAE72Mw](https://comparepv.com/panel/aiko-aiko-a635-mae72mw) | 635 W | +100 W, cooler, +3.9 pp | | [AIKO AIKO-A630-MAH72Dw](https://comparepv.com/panel/aiko-aiko-a630-mah72dw) | 630 W | +95 W, cooler, +3.7 pp | --- Source: https://comparepv.com/panel/goldi-solar-gs10-m144-wf-535 Not in this file, on the page: a thirty-year output simulator and alternatives filtered by how closely they match these dimensions.