QCells Q.PEAK DUO BLK ML-G10+

Product Performance

Rated Power 400W

Efficiency 20.4%

The G10 + series 400 W module comes in at a solid 20.4 % efficiency. This accomplishment is thanks largely to Q CELLS' zero gap Q.ANTUM DUO Z technology.

Power Tolerance 0/+5W

Power tolerance refers to the amount of electricity a panel will produce, either above or below its rated power capacity, at Standard Test Conditions (STC). The smaller the power tolerance deviation or range, the more accurate the rated power capacity is.Q CELLS modules have a power tolerance of -0/+5%.

This means Q CELL panels, including the PEAK DUO BLK ML-G10+ 400W will, at the minimum, operate at their rated capacity. The panels have exceeded their rated capacity by as much as 5% in third party testing. For example, a Q.PEAK DUO BLK ML-G10+ panel rated at 400 W will operate anywhere from 400 W to 420 W (or 5% higher than the rated 400 watts) under STC. With a -0% tolerance rating, the Q.PEAK DUO BLK ML-G10+ 400 panel operates at or above 400 W. American made Q Cells' tolerance means real world performance under Texas' most extreme conditions.

Temperature Coefficient PMax: -0.34

Solar panels perform best at 77°F (25°C). Here in Texas, obviously, we see temperatures that far exceed 77°F for long portions of the year. A solar panel's temperature coefficient is a measurement indicating how well a specific model of solar panel will perform outside of ideal operating conditions.

Knowing a panel's temperature coefficient and the temperature of the panel will allow you to predict your panel's performance during the dog days of summer.

Temperature coefficients are calculated in Celsius.

With each degree above 25°C /77°F, a given solar panel's electric output will be diminished by its temperature coefficient.

Using the above methodology, the Q.PEAK DUO BLK ML-G10+ 400W panel has a temperature coefficient of -0.347%/°C. Hence, when this panel's temperature increases by one degree, from 25°C to 26°C (77° F to 79° F), expect a 0.34% reduction in potential electric output.

When it's July in Texas and temperatures have climbed to 95° F/35° C, expect electric output to decrease by 3.4%. When the hottest hours of the summer drives the mercury into the triple digits, say 113° F/ 45° C, the panels will decrease approximately 6.8%.