1. What is a Solar System Calculator for Home?

Definition: This calculator estimates the size of solar panel system needed based on your daily electricity consumption and peak sunlight hours.

Purpose: It helps homeowners determine the appropriate solar system size to meet their energy needs.

2. How Does the Calculator Work?

The calculator uses the formula:

Where:

• \( Size \) — Solar system size (kilowatts)
• \( Daily\ kWh \) — Your daily electricity consumption (kilowatt-hours)
• \( Peak\ Hours \) — Average peak sunlight hours at your location

Explanation: The daily energy requirement is divided by peak sunlight hours to determine the system size needed to generate that energy.

3. Importance of Proper Sizing

Details: Correct solar system sizing ensures optimal energy production, maximizes return on investment, and prevents over- or under-sizing.

4. Using the Calculator

Tips: Enter your average daily kWh usage (check your utility bill) and local peak sun hours (default 4.5 hours). All values must be > 0.

5. Frequently Asked Questions (FAQ)

Q1: How do I find my daily kWh usage?
A: Divide your monthly kWh usage (from utility bill) by number of days in the billing period.

Q2: What are typical peak sun hours?
A: Most locations get 3-6 peak sun hours daily (4.5 is a good average for many regions).

Q3: Should I add extra capacity?
A: Consider adding 10-20% to account for system inefficiencies and future energy needs.

Q4: Does this include battery storage?
A: No, this calculates grid-tied system size. Battery systems require additional calculations.

Q5: How does panel efficiency factor in?
A: This calculation assumes standard efficiency panels. High-efficiency panels may require slightly less area.