--- title: "Goldi Solar GS10-T108-GF-425 425W Solar Panel - Specs & Review | ComparePV" description: "Goldi Solar GS10-T108-GF-425 425W solar panel. Specs: 21.66% efficiency, Monocrystalline cells, dimensions, warranty and temperature coefficient." source: "https://comparepv.com/panel/goldi-solar-gs10-t108-gf-425" updated: 2026-09-11 --- # Goldi Solar GS10-T108-GF-425 Solid all-round for its segment 1,218 panels in the segment TOPCon 400-450 W ## Identity - **Manufacturer:** Goldi Solar - **Model:** GS10-T108-GF-425 - **Series:** GS10-T108-GF - **Rated power:** 425 W - **Cell technology:** TOPCon - **Bifacial:** yes ## How it compares Compared against segment TOPCon 400-450 W (1218 panels). | Measure | This panel | Segment median | Standing | Rank | | --- | --- | --- | --- | --- | | Power (Wp) | 425 W | 435 W | Typical | | | Module efficiency | 21.66% | 22.00% | Typical | 7,615 | | Power density | 216.6 | 220.2 | Typical | 7,579 | | Temperature coefficient | -0.300 | -0.290 | Typical | 6,093 | | Weight (kg) | 22.0 kg | 22.0 kg | Typical | | | Performance warranty | 30 yrs | 30 yrs | Typical | 21 | ### Full peer table | Measure | This panel | Segment median | Standing | Rank | | --- | --- | --- | --- | --- | | Module efficiency | 21.66% | 22.00% | Typical | 7,615 | | Power density | 216.6 | 220.2 | Typical | 7,579 | | Temperature coefficient | -0.300 | -0.290 | Typical | 6,093 | | Weight per kWp | 51.8 | 51.4 | Typical | 5,132 | | Performance warranty | 30 yrs | 30 yrs | Typical | 21 | - **Best for:** Residential, commercial and hot-climate. ## Specification ### Electrical - **Rated power (Pmax):** 425 W - **Efficiency:** 21.66 % - **Voltage at Pmax (Vmp):** 31.69 V - **Current at Pmax (Imp):** 13.42 A - **Open-circuit voltage (Voc):** 38.29 V - **Short-circuit current (Isc):** 14.16 A - **Max system voltage:** 1500 V ### Temperature - **Temperature coefficient of Pmax:** -0.300 %/degC - **Temperature coefficient of Voc:** -0.250 %/degC - **Temperature coefficient of Isc:** 0.045 %/degC - **NOCT:** 45 degC ### Cell and construction - **Cell type:** Monocrystalline - **Cell technology:** TOPCon - **Cell count:** 108 - **Bifacial:** yes ### Physical - **Length:** 1730 mm - **Width:** 1134 mm - **Thickness:** 30 mm - **Weight:** 22.0 kg - **Area:** 1.96 m2 - **Power density:** 216.6 Wp/m2 ### Warranty and degradation - **Product warranty:** 12 years - **Performance warranty:** 30 years - **Output guaranteed at end of warranty:** 87.4 % - **First-year degradation:** 1.00 % - **Annual degradation:** 0.40 % - **Output after 30 years:** 371 W ## Rank in the whole catalogue | Measure | Position | | --- | --- | | Efficiency | 7615 of 14005 | | Power density | 7579 of 14005 | | Temperature coefficient | 6093 of 14005 | | Weight | 5132 of 14005 | | Warranty | 21 of 14005 | ## Pros - **N-type TOPCon Cells – Reduced LID Degradation** - TOPCon technology based on N-type silicon eliminates the Light-Induced Degradation (LID) effect characteristic of older P-type PERC cells. This translates to higher real-world annual energy yield and more stable performance throughout the full warranty period, as confirmed by independent testing from PV Evolution Labs and TÜV Rheinland. - **Bifacial Design – Additional Rear-Side Energy Yield** - Dual-sided light absorption allows the module to harvest energy reflected from the ground surface. In ground-mount and carport installations with light-colored or gravel substrates, bifacial gain realistically reaches 5–15% relative vs. monofacial. At a nominal power rating of 415–435 Wp, this translates to an effective yield of up to approximately 500 Wp with no additional equipment costs. - **30-Year Linear Power Output Warranty** - The manufacturer offers a 30-year linear power output warranty — the standard for N-type TOPCon modules (including JA Solar, LONGi, and Jinko Tiger Neo). The extended warranty horizon simplifies project DCF analysis and improves investment bankability compared to PERC modules, which typically carry only a 25-year power warranty. - **Tier-1 Bankable Manufacturer per BNEF** - Goldi Solar (founded 2011, HQ India) appears on the Bloomberg New Energy Finance Bankable Tier 1 list, meaning non-recourse project financing backed by these modules is accessible through at least six independent banks. This reduces credit risk and facilitates debt financing for utility-scale PV projects. - **Up to 22.17% Efficiency in 108-Cell Format** - A peak efficiency of 22.17% in the compact 108-cell format delivers high power density per m², which is critical in roof space-constrained applications. The series remains highly competitive among comparable 108-cell products (peers: Luxen N5 – 22.28%, ZNShine ZXM7 – 22.28%), trailing segment leaders by only 0.11 percentage points. ## Cons - **12-Year Product Warranty – Below TOPCon Segment Leaders** - As N-type TOPCon technology matures, a growing number of leading manufacturers now offer 25-year product warranties (LONGi Hi-MO 6, Jinko Tiger Neo, JA Deep Blue 4.0 Pro, Canadian Solar TOPHiKu6). The GS10-T108-GF carries a 12-year product warranty — mid-tier segment standard, not premium. For projects with a financing horizon exceeding 15 years, this may be a meaningful competitive disadvantage in tender evaluations. ## About this series The Goldi Solar GS10-T108-GF series consists of modules designed to maximize energy yield from every square meter of installation - whether on a rooftop or in ground-mounted systems. The use of **N-type monocrystalline cells in TOPCon technology** ensures stable performance over a long period and better energy utilization, even in less sunny conditions. The **bifacial** design allows for additional "collection" of reflected light from the ground, which effectively supports energy production in installations on sunny roofs, ground, or carports. The model also features **low temperature sensitivity**, resulting in smaller performance drops in the summer compared to many standard modules. For installers and investors, the **extended power output warranty** is a key advantage, making it easier to plan the project's profitability over the long term. The GS10-T108-GF is a good choice for homes, businesses, and PV farms where reliable technology, consistent quality, and high efficiency are paramount. ## Notable figures - At 21.7% efficiency, this panel is on par with typical \*\*TOPCon 400-450W\*\* modules - At 216.6 W/m², this panel generates 3.6 W/m² less per unit area than \*\*TOPCon 400-450W\*\* median (220.2 W/m²) - At -0.30%/°C, hot weather performance is typical for \*\*TOPCon 400-450W\*\* panels - 80% bifaciality enables rear-side power generation, boosting yield by 4-12% on reflective surfaces - Ranked #7615 out of 14005 panels for efficiency in the database ## Questions ### What warranty does the Goldi Solar GS10-T108-GF series come with? The GS10-T108-GF series includes a 12-year product warranty and a 30-year linear power output warranty. Such an extended power guarantee makes it straightforward to project the financial return of a residential or commercial installation over the long term and confirms the manufacturer's confidence in the stated performance parameters. ### What is TOPCon technology and why does it matter in the GS10-T108-GF series? TOPCon (Tunnel Oxide Passivated Contact) is an advanced N-type monocrystalline cell technology that delivers higher efficiency and lower long-term degradation compared to conventional PERC modules. In the GS10-T108-GF, this translates to better energy yield under low-irradiance conditions such as overcast days and more stable output throughout the system's lifetime. ### Are the GS10-T108-GF panels bifacial, and when does that actually make a difference? Yes, the GS10-T108-GF modules feature a bifacial design that captures light from both the front and rear surfaces. The rear-side gain is most significant in ground-mount systems on light-colored ground cover, carports, or flat roofs with white membranes. On typical pitched roofs with dark tiles, the bifacial contribution is minimal. ### How do the Goldi Solar GS10-T108-GF panels perform during summer heat? N-type TOPCon cells have a more favorable temperature coefficient than standard PERC modules, meaning power losses during hot, sunny days are lower. For installations in Central Europe, this can translate to a few percentage points of additional yield at peak summer irradiance compared to older cell technologies. ### Is Goldi Solar a reliable manufacturer and is the GS10-T108-GF series still available? Goldi Solar is an Indian Tier 1 manufacturer recognized for consistent production quality and bankability, which simplifies project financing. The GS10-T108-GF series remains an active product line and has not been discontinued, so it is currently available through authorized distribution channels. ### What types of installations are the Goldi Solar GS10-T108-GF 435 Wp modules best suited for? With 435 Wp peak power, TOPCon cell technology, and a bifacial design, the GS10-T108-GF is well suited for residential rooftop systems, commercial flat-roof installations, ground-mount utility projects, and agrivoltaic applications. The 108-cell layout offers good flexibility for matching various roof dimensions and racking configurations. ## Datasheet [Manufacturer datasheet (PDF)](https://comparepv.com/datasheets/goldi-datasheet-gs10-t108-gf-415-wp-435-wp-1661eb72265e.pdf) ## Alternatives | Panel | Power | How it differs | | --- | --- | --- | | [Maxeon SPR-MAX7-475](https://comparepv.com/panel/maxeon-spr-max7-475) | 475 W | +50 W, +2.3 pp, +10 yr warranty | | [Just Solar JST-EDMH-(445-465)W-TD (465W class)](https://comparepv.com/panel/just-solar-jst-edmh-445-465-w-td-465w-class) | 465 W | +40 W, lighter, +2.1 pp | | [JA Solar JAT54S40-475/LR](https://comparepv.com/panel/ja-solar-jat54s40-475-lr) | 475 W | +50 W, cooler, +2.1 pp | | [Tongwei TWMNH-48HW475](https://comparepv.com/panel/tongwei-solar-twmnh-48hw475) | 475 W | +50 W, cooler, +2.1 pp | | [Astronergy CHSM48RN(DG)/F-BH-475](https://comparepv.com/panel/astronergy-chint-new-energy-technology-co-ltd-chsm48rn-dg-f-bh-475) | 475 W | +50 W, heavier, +2.1 pp | | [AIKO AIKO-A475-MCE54Mw](https://comparepv.com/panel/aiko-aiko-a475-mce54mw) | 475 W | +50 W, cooler, +2.1 pp | | [AIKO AIKO-A475-MAH54Mw](https://comparepv.com/panel/aiko-aiko-a475-mah54mw) | 475 W | +50 W, cooler, +2.1 pp | | [Goldi Solar GS10-B108-BF-390](https://comparepv.com/panel/goldi-solar-gs10-b108-bf-390) | 390 W | Hotter, -1.8 pp, -5 yr warranty | | [Goldi Solar GS10-B108-GF-395](https://comparepv.com/panel/goldi-solar-gs10-b108-gf-395) | 395 W | -30 W, hotter, -1.5 pp | | [Goldi Solar GS10-B108-BF-400](https://comparepv.com/panel/goldi-solar-gs10-b108-bf-400) | 400 W | Hotter, -1.3 pp, -5 yr warranty | | [Longi Solar LR7-54HJD-510M](https://comparepv.com/panel/longi-lr7-54hjd-510m) | 510 W | +85 W, cooler, +3.3 pp | | [AIKO AIKO-A495-MCE54Mw](https://comparepv.com/panel/aiko-aiko-a495-mce54mw) | 495 W | +70 W, cooler, +3.1 pp | | [Longi Solar LR7-54HJD-505M](https://comparepv.com/panel/longi-lr7-54hjd-505m) | 505 W | +80 W, cooler, +3.0 pp | | [AIKO AIKO-A490-MCE54Mw](https://comparepv.com/panel/aiko-aiko-a490-mce54mw) | 490 W | +65 W, cooler, +2.8 pp | | [Longi Solar LR7-54HJD-500M](https://comparepv.com/panel/longi-lr7-54hjd-500m) | 500 W | +75 W, cooler, +2.8 pp | | [Talesun CIPRO-TN9C54M-500W](https://comparepv.com/panel/talesun-cipro-tn9c54m-500w) | 500 W | +75 W, cooler, +2.8 pp | --- Source: https://comparepv.com/panel/goldi-solar-gs10-t108-gf-425 Not in this file, on the page: the I-V and temperature curves lifted from the manufacturer's datasheet, a thirty-year output simulator, a bifacial gain calculator and alternatives filtered by how closely they match these dimensions.