1. What is the Whole Home Battery Backup Size Calculator?

This calculator helps determine the appropriate battery size (in kWh) needed for whole home backup power at Home Depot based on your home's power load and desired backup duration.

2. How Does the Calculator Work?

The calculator uses the simple equation:

Where:

• Home Load — Your home's average power consumption in kilowatts (kW)
• Hours — The number of hours you want backup power to last

Explanation: The equation multiplies your home's power requirement by the duration needed to determine total energy storage required.

3. Importance of Proper Battery Sizing

Details: Correct battery sizing ensures your home has sufficient backup power during outages without overspending on unnecessary capacity.

4. Using the Calculator

Tips: Enter your home's average load in kW (typically 5-20kW for average homes) and desired backup duration in hours. All values must be positive numbers.

5. Frequently Asked Questions (FAQ)

Q1: How do I determine my home's load?
A: Check your utility bills for average kW usage or consult with an electrician for a professional load calculation.

Q2: What's a typical battery size for homes?
A: Most homes require 10-20kWh for essential circuits, 20-40kWh for whole-home backup.

Q3: How long will a battery last during outage?
A: Depends on your usage - reducing non-essential loads extends backup duration.

Q4: Does this account for solar charging?
A: No, this calculates standalone battery needs. Solar would reduce required battery size.

Q5: What battery options does Home Depot offer?
A: Home Depot carries various home battery solutions including Tesla Powerwall, Generac PWRcell, and others.