Solar Power Formula:
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Definition: This calculator estimates the annual solar power output based on local insolation and system size.
Purpose: It helps homeowners and businesses estimate potential solar energy production for their location.
The calculator uses the formula:
Where:
Explanation: The local insolation value represents solar energy availability, which when multiplied by system size gives estimated annual production.
Details: Accurate solar power estimation helps in system sizing, financial planning, and understanding renewable energy potential.
Tips: Enter your local insolation value (find from solar maps) and your planned system size in kW. All values must be > 0.
Q1: Where can I find my local insolation value?
A: Check NASA's solar database, local weather stations, or solar potential maps for your area.
Q2: What's a typical insolation value?
A: In the US, values range from 3-7 kWh/m²/day (1100-2500 kWh/m²/year).
Q3: Does this account for system efficiency?
A: No, this is theoretical maximum. Multiply by 0.75-0.85 for real-world efficiency.
Q4: How do I convert kW to kWh?
A: The calculator does this automatically by incorporating annual insolation data.
Q5: What affects solar power output?
A: Location, tilt angle, shading, panel efficiency, and weather patterns all impact output.