1. What is Home Charge Percentage?

The Home Charge Percentage calculates how much of your battery capacity is being charged by solar input. It helps you understand the efficiency of your solar charging system relative to your battery capacity.

2. How Does the Calculator Work?

The calculator uses the following equation:

Where:

• Solar Input Wh — Solar energy input in watt-hours
• Battery Capacity Wh — Total battery storage capacity in watt-hours

Explanation: The equation shows what percentage of your battery's total capacity is being charged by the solar input.

3. Importance of Charge Calculation

Details: Knowing your home charge percentage helps optimize solar energy usage, plan battery capacity needs, and understand system performance.

4. Using the Calculator

Tips: Enter solar input in watt-hours (Wh) and battery capacity in watt-hours (Wh). Both values must be positive numbers.

5. Frequently Asked Questions (FAQ)

Q1: What's a good home charge percentage?
A: Ideally, your solar input should match or exceed your daily usage. A 100% charge percentage means your solar input equals your battery capacity.

Q2: How do I measure solar input?
A: Solar input is typically measured by your solar inverter or monitoring system, showing how much energy your panels produce.

Q3: Should I aim for 100% charge percentage?
A: Not necessarily. The ideal percentage depends on your energy usage patterns and whether you want to store excess energy.

Q4: Does battery efficiency affect this calculation?
A: This calculation shows theoretical percentage. Actual stored energy may be less due to charging efficiency losses.

Q5: Can I use this for different battery types?
A: Yes, the calculation works for any battery type (lithium, lead-acid, etc.) as long as you use watt-hour capacity.