Trina Solar 325 watt

Trina Solar one best leading company, which manufacturing top Tier 1 solar panel. These panels accepted worldwide and main solar plant installed bigger than megawatts. On Pakistan right now various sizes being imported. Most famous sizes 325,330 w and 350 watts. Trina Solar 325 watt solar panel and Trina 330 watt solar panels are standard panels, Where as Trina solar 350 watt solar panels are Half cut solar panel which is based on 144 cells. Very effective to shady areas to produce energy when the standard panel stops producing.

To Get data sheet and panels details please contact us.

Key Specifications Trina Solar 325 watt (Typical for TSM-325DD14A.05 / Honey M+)

Power (Pmax): 325W
Efficiency: ~16.9-17.4%
Cell Type: Polycrystalline (multi-crystalline)
Cell Count: 120 half-cut cells (a key feature that reduced resistive losses).
Dimensions: Approximately 1956 x 992 x 40 mm (77.0 x 39.1 x 1.57 inches)
Weight: ~24.0 kg (52.9 lbs)
Voltage (Vmp): ~37.2V
Current (Imp): ~8.74A
Frame: Anodized aluminium alloy
Warranty: Typically 25-year linear power warranty (with ~97% output in first year, ~0.7% annual degradation), and a 10-12 year product warranty.

Key Features & Technology of Trina Solar 325 watt

Honey Technology: This was Trina’s proprietary texturing process for poly cells that trapped more light, boosting efficiency compared to standard poly panels.
Half-Cut Cells (120 Cells): The panel’s 60 full cells were cut in half. This reduced internal current and resistance, leading to better performance in partial shade and lower operating temperatures.
Durable & Reliable: Known for robust build quality, passing rigorous salt mist, ammonia, and PID (Potential Induced Degradation) tests.

Pros and Cons in Today’s Context Trina Solar 325 watt

Pros:

Proven Reliability: Millions installed worldwide with a strong long-term performance record.
Cost-Effective (Used Market): Can be found at very low prices on the secondary market.
Shade Tolerance: The half-cell design gives it an advantage over older full-cell panels when partially shaded.
Standard Size: Compatible with most racking systems designed for “60-cell format” panels.

Cons (vs. Modern Panels):

Lower Efficiency: Modern mono PERC panels are 20-23% efficient. You need more roof space for the same power output.
Higher Degradation: Newer panels often have a 0.5% annual degradation rate vs. this panel’s ~0.7%.
Polycrystalline vs. Monocrystalline: Poly is less efficient in low-light and high-temperature conditions than modern mono cells.
Lower Power Density: At ~325W vs. 400W+, you need more panels, more mounting hardware, and more labor for the same system size.

Ideal Use Cases Today Trina Solar 325 watt

Budget-Conscious System Expansion: Adding a few matching panels to an existing array.
Large, Unconstrained Roof Spaces: Where efficiency is less critical than absolute cost-per-watt.
Purchasing on the Secondary Market: A good choice if you find a pallet from a reputable dealer with remaining warranty.
Off-Grid Systems: The 37.2V Vmp is well-suited for charging 24V or 48V battery banks.

Comparison to Modern Trina Solar 325 watt (e.g., Vertex S+)

Trina’s current panels, like the Vertex S+ 420W, are in a different league:

Monocrystalline PERC Cells: Higher efficiency (~21.3%).
Larger Format (N-type): 210mm cells in a smaller physical footprint.
More Power: 420W+ from a panel that’s only slightly larger.
Better Warranties: Lower degradation rates (e.g., 0.55% annually).

Should You Buy Them in 2025/2026?

As New Old Stock (NOS): Only if the price is dramatically lower than a modern 400W+ panel, and you have ample roof space.
Used: Exercise extreme caution. Verify condition, age, and remaining warranty. Test for power output before purchase.
For a New Installation: Generally not recommended. The balance-of-system savings (rack, labor, wiring) and superior performance of modern panels almost always make them a better long-term value.

Bottom Line: The TrinaSolar 325W was a workhorse and industry leader in its time. It remains a reliable, capable panel if you already own them or find a fantastic deal. However, for any new installation, modern high-wattage, high-efficiency panels will provide a better return on investment and more power from your available space.

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