1. What is the Enphase Battery Backup Calculator?

The Enphase Battery Backup Calculator estimates how long your Enphase battery system can power your home during an outage based on your battery capacity and electrical load.

2. How Does the Calculator Work?

The calculator uses the following formula:

Where:

• \( Enphase\ Battery\ kWh \) — Total battery capacity in kilowatt-hours
• \( Load\ (W) \) — Total electrical load in watts
• 1000 — Conversion factor (1 kW = 1000 W)

Explanation: The equation converts battery capacity to watt-hours and divides by the load to determine runtime.

3. Importance of Backup Time Calculation

Details: Knowing your estimated backup time helps in emergency planning and determining if your battery system meets your needs during power outages.

4. Using the Calculator

Tips: Enter your Enphase battery capacity in kWh and your expected electrical load in watts. Both values must be greater than zero.

5. Frequently Asked Questions (FAQ)

Q1: Is this calculation exact?
A: This provides an estimate. Actual backup time may vary based on battery age, temperature, inverter efficiency, and other factors.

Q2: How do I determine my electrical load?
A: Add up the wattage of all essential devices you plan to run during an outage, or check your home's energy monitoring system.

Q3: Does this account for solar production during outage?
A: No, this calculates battery-only backup time. With solar production, backup time may be extended.

Q4: What's the typical Enphase battery capacity?
A: Enphase batteries typically range from 3.3 kWh to 10 kWh per unit, with systems often combining multiple batteries.

Q5: Can I use this for other battery brands?
A: The calculation works for any battery system, but efficiency factors may differ between brands.