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Solar Power Wattage Calculator

Wattage Formula:

\[ W = \frac{kWh \times 1000}{Hours} \]

kWh
hours

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1. What is a Solar Power Wattage Calculator?

Definition: This calculator determines the solar panel wattage needed based on your energy consumption and usage time.

Purpose: It helps homeowners and solar installers properly size solar panel systems for specific energy needs.

2. How Does the Calculator Work?

The calculator uses the formula:

\[ W = \frac{kWh \times 1000}{Hours} \]

Where:

Explanation: The energy in kWh is converted to watt-hours (×1000) then divided by usage hours to determine the continuous wattage needed.

3. Importance of Proper Wattage Calculation

Details: Accurate wattage calculation ensures your solar system can meet your energy demands without over- or under-sizing the installation.

4. Using the Calculator

Tips: Enter your daily kWh consumption and the number of hours you need power each day. All values must be > 0.

5. Frequently Asked Questions (FAQ)

Q1: Why multiply kWh by 1000?
A: This converts kilowatt-hours to watt-hours (1 kWh = 1000 Wh).

Q2: How do I find my kWh consumption?
A: Check your electricity bill or use a kWh meter to measure appliance usage.

Q3: What time period should I use?
A: Typically use daily kWh and hours of sunlight, but adjust for your specific needs.

Q4: Does this account for solar inefficiency?
A: No, consider adding 20-30% to the calculated wattage for real-world conditions.

Q5: How does this relate to solar panel sizing?
A: The result shows the continuous wattage needed; divide by peak sun hours for total panel capacity.

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