Energy Formula:
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Definition: This calculator estimates the daily energy production of a solar panel system based on the number of panels, their wattage, and average sunlight hours.
Purpose: It helps homeowners and solar installers determine potential energy generation for solar power systems.
The calculator uses the formula:
Where:
Explanation: The formula multiplies the system size by the hours of production to estimate daily energy output.
Details: Accurate energy estimation helps in system sizing, cost analysis, and determining return on investment for solar installations.
Tips: Enter the number of panels, their wattage (default 300W), and average daily sunlight hours (default 5h). All values must be > 0.
Q1: What's a typical panel wattage?
A: Most residential panels range from 250-400 watts, with 300W being a common standard.
Q2: How do I estimate sunlight hours?
A: Check solar insolation maps for your location or use 4-6 hours as a general estimate for most regions.
Q3: Does this account for system losses?
A: No, actual production will be 10-20% less due to inverter efficiency, temperature, and other factors.
Q4: How do I convert watt-hours to kWh?
A: Divide the result by 1000 (1 kWh = 1000 Wh).
Q5: Can I use this for battery sizing?
A: Yes, this gives daily production which helps determine battery capacity needs.