Home/Learn/Battery Backup

Solar Battery Backup Systems

Understand how battery backup protects your home during grid outages and provides energy independence.

What is Battery Backup?

Battery backup is a storage system that holds excess solar energy (or grid power) so it can be used later—especially during power outages. When the grid fails, a properly designed battery backup system can automatically help power selected loads or larger portions of the home—keeping lights, refrigeration, heating, and communications running while stored energy lasts.

Unlike traditional backup generators that require fuel, maintenance, and manual startup, battery backup systems are automatic, silent, and require virtually no maintenance.

Key Benefits

Outage Readiness

When properly designed with battery backup, selected loads or larger portions of the home can keep running during outages.

Automatic Failover

The system detects outages instantly and switches to battery power without interruption.

Peace of Mind

Know your family stays safe and comfortable, even during extended grid failures.

Expandable

Start with one battery and add more as your needs grow or energy costs rise.

Backup Duration & Capacity

Minor Outage (1-4 hours)

Recommended Capacity: Single battery (10-15 kWh)

Can power:

  • Lights
  • Refrigerator
  • Medical devices
  • WiFi/Communications

Extended Outage (4-24 hours)

Recommended Capacity: Dual battery (20-30 kWh)

Can power:

  • All essentials plus
  • Heating/Cooling
  • Water pump
  • EV charging

Long-term Outage (24+ hours)

Recommended Capacity: Multi-battery (40+ kWh)

Can power:

  • More of the home powered
  • All appliances
  • Full comfort & safety
  • Multiple devices

How Battery Backup Works

1

Solar Charges Battery

During the day, solar panels generate electricity. Excess power charges your battery.

2

Battery Stores Energy

Your battery stores energy for use at night or during outages.

3

Outage Detected

If the grid fails, your system instantly detects the outage.

4

Automatic Switch

Power switches to battery backup seamlessly—no lights flicker, no interruption.

5

Home Stays Powered

Your home runs on battery energy until the grid returns or the battery depletes.

Preliminary Solar Estimate

Price Your Own Solar in Under a Minute.

See if your home looks like a strong solar candidate in under 60 seconds — no pressure, no sales calls, no obligation.