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How long Base powers your home

Estimate how many hours your home battery can power your house during an outage.
GET YOUR BACKUP ESTIMATE

Calculate your outage protection time

UNDERSTANDING YOUR BACKUP OPTIONS

How long different home backup systems last

Portable generators
Portable generators can power basic appliances like a fridge, freezer, or a few lights — but not the entire home.

Their runtime depends on the fuel tank and load, typically lasting 6–12 hours per refill. They’re good for short outages, but require manual setup, fuel storage, and regular maintenance.
Standby generators
Standby systems run on natural gas or propane and can power the whole home automatically.

They can run indefinitely as long as fuel is available, but come with high installation costs ($12,000–$20,000) and ongoing maintenance. They’re best for homes that lose power frequently and for long periods.
Whole-home batteries
Battery backups power your home silently and instantly during an outage.

Runtime depends on system size and usage:
- 25 kWh battery: ~8–24 hours of backup
- 50 kWh battery: ~15–48 hours of backup

Unlike generators, they need no fuel or maintenance. When paired with solar, backup time can extend even longer — sometimes indefinitely during daylight hours.
Hybrid setups
Some homes combine battery + solar + generator for maximum resilience.

In these systems, the generator or solar panels recharge the battery during long outages, allowing power to cycle continuously.
GET THE BEST PLAN FOR YOUR HOME

How to choose the best electricity plan

01
Compare your backup options

Portable units, standby generators, and batteries all work differently. Generators need fuel and maintenance. Base gives you quiet, automatic backup without the hassle.

01
Factor in long-term costs

Ask about maintenance schedules, warranty coverage, and repair fees. Standby generators often require regular servicing and fuel; batteries like Base run quietly and need almost no upkeep, and all maintenance is covered under one simple membership.

01
Choose a system that fits your lifestyle

Think about what you want powered during an outage: a few essentials or your whole home. Whole-home batteries provide instant, quiet backup without refueling or manual setup.

Learn more

How Base works on installation day

Learn more about Base, home backup, and power outage preparedness

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How the Base battery works: a complete guide

This guide covers everything you need to know about how your Base battery operates, protects your home, and supports the power grid

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A guide to power outages: causes and misconceptions (2025)

This guide breaks down the real causes of power disruptions, the types you’re most likely to experience, and the biggest misconceptions about the grid.

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How batteries support the grid

This article breaks down essential winter storm preparation tips for everyone, with specific guidance for Base members and those without backup power.