1. What is a Solar Generator Power Calculator?

Definition: This calculator estimates the required solar generator power based on your total load, safety factor, and system efficiency.

Purpose: It helps determine the appropriate size of solar generator needed to power your electrical loads reliably.

2. How Does the Calculator Work?

The calculator uses the formula:

Where:

• \( P_{kW} \) — Required generator power (kilowatts)
• \( \Sigma(P_{load}) \) — Total connected load (watts)
• \( SF \) — Safety factor (typically 1.2-1.5)
• \( \eta_{solar} \) — System efficiency (0-1, typically 0.8-0.9)

Explanation: The total load is converted to kW, then adjusted for safety margin and system losses.

3. Importance of Proper Sizing

Details: Correct generator sizing ensures reliable power supply, prevents overloads, and optimizes system cost.

4. Using the Calculator

Tips: Enter total load in watts, safety factor (default 1.25), and system efficiency (default 0.85). All values must be > 0, efficiency ≤ 1.

5. Frequently Asked Questions (FAQ)

Q1: What is the safety factor for?
A: It accounts for unexpected load increases, startup surges, and future expansion.

Q2: What affects system efficiency?
A: Inverter efficiency, wiring losses, battery efficiency, and temperature effects.

Q3: Should I include all appliances?
A: Yes, sum the wattage of all devices that might run simultaneously.

Q4: How do I find appliance wattage?
A: Check nameplate ratings or use a wattmeter. For motors, use starting wattage.

Q5: Does this include battery storage?
A: No, this calculates continuous power needs. Battery sizing requires additional calculations.