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Energy Calculation Formula:
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kW (kilowatt) and kWh (kilowatt-hour) are fundamental units in solar energy systems. kW measures power (the rate of energy production or consumption), while kWh measures energy (the total amount of electricity produced or consumed over time).
The calculator uses the energy formula:
Where:
Explanation: This formula calculates how much energy a solar system produces based on its power rating and the duration of operation.
Details: Understanding the difference between kW (power capacity) and kWh (energy production) is crucial for sizing solar systems, estimating energy production, and calculating electricity bills and savings.
Tips: Enter the power rating of your solar system in kW and the number of hours it operates. The calculator will determine the total energy produced in kWh.
Q1: What's the difference between kW and kWh?
A: kW measures power (rate of energy transfer), while kWh measures energy (total amount used or produced). 1 kW for 1 hour = 1 kWh.
Q2: How many kWh will a 5kW solar system produce?
A: It depends on sunlight hours. A 5kW system operating at full capacity for 4 hours would produce 20 kWh (5 kW × 4 h = 20 kWh).
Q3: Why is this important for solar calculations?
A: Solar panels are rated in kW (peak power), but you pay for electricity in kWh, making this conversion essential for understanding system performance and savings.
Q4: How does weather affect these calculations?
A: Solar systems rarely operate at full capacity. Actual production depends on weather, season, panel orientation, and system efficiency.
Q5: Can I use this for battery storage calculations?
A: Yes, battery capacity is typically measured in kWh, so this calculation helps determine how long a battery can power your home based on your energy consumption.