1. What is Solar Power Usage?

Solar power usage refers to the amount of energy produced or consumed by a solar power system over a specific period of time, typically measured in watt-hours (Wh).

2. How Does the Calculator Work?

The calculator uses the solar power usage formula:

Where:

• \( Wh \) — Energy in watt-hours
• \( P_{solar} \) — Solar power in watts (W)
• \( h \) — Time in hours

Explanation: This simple formula calculates the total energy produced or consumed by multiplying the power output by the time duration.

3. Importance of Solar Energy Calculation

Details: Calculating solar energy usage helps in sizing solar power systems, estimating energy production, and evaluating system performance.

4. Using the Calculator

Tips: Enter solar power in watts and time in hours. Both values must be positive numbers.

5. Frequently Asked Questions (FAQ)

Q1: What's the difference between watts and watt-hours?
A: Watts measure power (instantaneous rate of energy), while watt-hours measure energy (power × time).

Q2: How does this relate to kilowatt-hours (kWh)?
A: 1 kWh = 1000 Wh. To convert, divide watt-hours by 1000.

Q3: What affects solar power output?
A: Panel efficiency, sunlight intensity, angle to sun, temperature, and shading all affect output.

Q4: Is this calculation for AC or DC systems?
A: This calculates DC watt-hours. For AC systems, you'd need to account for inverter efficiency.

Q5: Can I use this for battery sizing?
A: Yes, but you'll need to consider depth of discharge and battery voltage for proper sizing.