Middle of its segment, modest efficiency
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.
Ranking
Signals from the data
Residential, commercial and hot-climate.
Tight roof space and roofs where every square metre has to count.
Bottom 14% of the TOPCon 400-450 W segment, against a median of 22.00%.
Bottom 15% of the TOPCon 400-450 W segment, against a median of 220.2.
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.
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.
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.
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.
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.
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.
- Efficiency of 21.4% is 0.6pp below the TOPCon 400-450W median (22.0%)
- Power density of 214.1 W/m² is 6.1 W/m² below TOPCon 400-450W median (220.2 W/m²) - needs more roof space
- Temperature coefficient of -0.30%/°C matches the TOPCon 400-450W median
- Bifacial design (80% factor) captures reflected light - adds 4-12% yield on ground-mount or white roof
- Ranked #8323 out of 14005 panels for efficiency in the database
Specifications
Datasheet charts
Measured curves published by Goldi Solar in this model's datasheet. A chart carrying a wattage was measured on that variant alone - only the ones that describe 420 Wp appear here. The rest cover the whole series.
Simulations
Degradation from this panel's own datasheet figures. No inverter, soiling or shading losses.
Model: bifaciality × albedo × 0.6 view factor. A first-order estimate, not a yield simulation.
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