Solar Energy Formula:
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Definition: This calculator estimates the energy output of solar panels in kilowatt-hours (kWh) based on power rating and time duration.
Purpose: It helps solar energy users and installers determine potential energy production from solar panels.
The calculator uses the formula:
Where:
Explanation: The power rating is multiplied by time to get watt-hours, then divided by 1000 to convert to kilowatt-hours.
Details: Accurate energy calculations help in sizing solar systems, estimating savings, and evaluating system performance.
Tips: Enter the solar panel's power rating in watts and the time duration in hours. All values must be > 0.
Q1: What's a typical power rating for solar panels?
A: Residential solar panels typically range from 250-400 watts each.
Q2: How do I calculate daily energy production?
A: Use the panel's wattage and multiply by your area's average peak sun hours (typically 4-6 hours).
Q3: Why divide by 1000?
A: This converts watt-hours to kilowatt-hours (1 kWh = 1000 watt-hours), the standard unit for electricity billing.
Q4: Does this account for efficiency losses?
A: No, this is theoretical maximum. Real-world systems typically produce 70-90% of this value due to various factors.
Q5: How can I estimate monthly production?
A: Multiply daily production by 30, or use our Monthly Solar Calculator for more precise estimates.