kW to kWp Formula:
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The kW to kWp conversion calculates the peak power output (kWp) of a system based on its actual power (kW) and efficiency. This is particularly important in solar energy systems where kWp represents the maximum power output under ideal conditions.
The calculator uses the kW to kWp formula:
Where:
Explanation: The formula accounts for system losses by dividing the actual power by the efficiency factor to determine the peak power capability.
Details: Knowing the kWp helps in system design, performance evaluation, and comparing different energy systems under standardized conditions.
Tips: Enter power in kW and efficiency as a decimal between 0 and 1 (e.g., 0.85 for 85% efficiency). All values must be valid (power > 0, 0 < efficiency ≤ 1).
Q1: What's the difference between kW and kWp?
A: kW measures actual power output, while kWp measures peak power output under ideal conditions.
Q2: What is a typical efficiency value for solar panels?
A: Most commercial solar panels have efficiencies between 15-22% (0.15-0.22).
Q3: Why is kWp important for solar systems?
A: kWp allows comparison of different solar systems under standardized test conditions (STC).
Q4: Can efficiency be greater than 1?
A: No, efficiency is always ≤ 1 (or ≤ 100%). Values greater than 1 would violate energy conservation laws.
Q5: How does temperature affect kWp?
A: Higher temperatures typically reduce panel efficiency, resulting in lower actual output compared to rated kWp.