S SOLARSPECS
First Solar is the largest American solar panel manufacturer and the only major producer of thin-film CdTe modules. The First Solar FS-3100-Plus is a Thin-Film solar module delivering 100W of rated power output with 13.89% module efficiency. Designed for off-grid applications, this panel brings reliable performance.
🏭View all 218 First Solar models Brand range: 67.5W–550W
Thin-Film

First Solar FS-3100-Plus

Max Power
100W
Efficiency
13.89%
Operating V
46.8V
Warranty
25Y
First Solar FS-3100-Plus logo
Technical Specifications
Open Circuit Voltage (Voc)58.8V
Short Circuit Current (Isc)2.33A
Voltage at Pmax (Vmp)46.8V
Current at Pmax (Imp)2.14A
Temp. Coefficient of Pmax-0.249%/°C
Dimensions1200 x 600 x 35 mm
Weight9.0kg
NOCT44.6°C
PTC Rating96.3W
📋 Data verified: June 2026 📄 Specs based on STC (1000 W/m², 25°C, AM 1.5) 🏷️ 218 First Solar models in database

FAQ

How does temperature affect the First Solar FS-3100-Plus?

With a temp coefficient of -0.249%/°C, it outperforms the industry average of -0.35 to -0.40%/°C.

What is the max power output of the First Solar FS-3100-Plus?

The First Solar FS-3100-Plus is rated at 100W under STC (1000 W/m², 25°C, AM 1.5).

What are the dimensions and weight of the First Solar FS-3100-Plus?

It measures 1200 x 600 x 35 mm and weighs 9.0kg.

How long is the warranty for the First Solar FS-3100-Plus?

The FS-3100-Plus comes with a 25-year product warranty covering defects and degradation.

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📊 Brand Context

First Solar offers 218 solar panel models from 67.5W to 550W.

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