Solar Output Formula:
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Definition: This calculator estimates the electrical output power of solar panels based on input solar energy and panel efficiency.
Purpose: It helps solar energy professionals and homeowners determine how much electricity their solar panels can generate.
The calculator uses the formula:
Where:
Explanation: The solar input is multiplied by the panel's efficiency to determine usable electrical output.
Details: Proper output estimation helps in system sizing, energy production forecasting, and return on investment calculations.
Tips: Enter the solar input in Watts and panel efficiency (default 0.18 for 18% efficiency). Efficiency must be between 0 and 1.
Q1: What's a typical solar panel efficiency?
A: Most commercial panels range from 15-22% efficiency (0.15-0.22).
Q2: How do I find the solar input value?
A: Solar irradiance is typically about 1000W/m² at peak conditions. Multiply by panel area to get input.
Q3: Why is efficiency less than 1?
A: Solar panels can't convert 100% of sunlight to electricity due to physical limitations.
Q4: Does this include system losses?
A: No, this calculates panel output only. Account for additional losses (inverter, wiring) separately.
Q5: Can I use this for an entire solar array?
A: Yes, use total input and average efficiency for the array.