Batteries
12V UL Certified
Certified to UL1973. Consistent quality, audited over time.
12V Budget
Cheaper per amp-hour. Reliable today, no long-term guarantee.
48V UL Certified
Required if you are permitting your system or tying to the grid.
48V Budget
Great build quality, but off-grid use only — not permit-legal.
Battery Capacity Testers
After a few years, you need to test the capacity of your system.
Inverters
12V Off-Grid
RVs, boats, vans and small cabins. 1,000–3,000W.
48V Off-Grid
Run a whole house off-grid. 6,000–12,000W.
48V Hybrid
Grid-tied plus battery backup. Certified for interconnection.
High-Voltage Residential
Highest efficiency. This is what I run in my own home.
3-Phase Commercial
Take an entire warehouse off-grid. Effectively unlimited capacity.
Solar Panels
Mobile Panels
Lightweight and low-profile for RVs, vans and trailers.
Standard Panels
Best cost per watt for homes, ground mounts and carports.
Solar Mounting
Ground Mount
Fast to assemble, engineered and legal for permitted installs.
Roof Mounted
Low-profile systems engineered for secure, long-lasting roof installations.
Solar Carports
Dual-purpose structures that provide shade while generating clean energy.
Generators
Anker Solar Generators
Build a system in minutes! Beginner friendly and reliable.
Jackery HomePower
This is the only Jackery that I like. The output for the size and price is fantastic.
System Packages
Don't Want to Piece it Together?
These are complete, wire-by-wire builds I’ve assembled and tested myself. Every fuse, lug and breaker is specified, so nothing shows up missing on install day.

Hand-Truck 48V System

Hand-Truck 48V System ~$2,400

Off-Grid Home Blueprint

Full 48V house system ~$9,800

Code-Compliant 48V System

Permit & inspection ready ~$13,500

Components
Battery Chargers
Reliable charging for lithium batteries.
Wire & Connectors
Wiring essentials for a clean, reliable setup.
Fuses & Breakers
Essential protection for your electrical system.
Crimpers & Tools
Tools for building and maintaining your system.
Battery Monitors
Track your battery’s power and performance.
Solar-friendly A/C
Efficient cooling built for off-grid power.
12v Fridges
Efficient cooling for life on the road.
Components

Van or RV

Mobile, 12V, tight on space and weight

Boat

Marine-rated, waterproof, heated cells

Cabin or Shed

Small off-grid build, 12V or 48V

Whole House

Off-grid or grid-tied with backup

Backup Power

Reliable Power Through Every Outage

A reliable backup power system keeps your essential devices running when the grid goes down. From portable power stations to full home battery systems, the right setup provides enough capacity, stable output, and automatic switching to keep your home powered and prepared during any outage.

What Every Backup Power System Needs

Solar Panels

Stores energy for use when utility power is unavailable.

Inverter/Charger

Converts battery energy into clean AC power and recharges the battery from the grid.

Automatic Transfer Switch

Safely transfers supported circuits from utility power to backup power.

Critical Loads Panel

Keeps selected essential circuits powered during an outage.

Grid Charging

Maintains the battery at a ready state while utility power is available.

Solar Charging

Extends backup runtime by generating additional energy during daylight.

Generator Integration

Provides another charging source during long outages or poor solar conditions.

Monitoring & Protection

Tracks system status and protects equipment through disconnects, breakers, and controls.

Recommended Backup Power Components

Tested products for keeping essential devices, critical circuits, or your entire home powered during an outage.

Best Value

12V UL Certified

Certified to UL1973. Consistent quality, audited over time.

See my picks →

Permit-legal

48V UL Certified

Required if you are permitting your system or tying to the grid.

See my picks →

Most Popular

48V Off-Grid

Run a whole house off-grid. 6,000–12,000W.

See my picks →

48V Hybrid

Grid-tied plus battery backup. Certified for interconnection.

See my picks →

Will's Own Build

High-Voltage Residential

Highest efficiency. This is what I run in my own home.

See my picks →

Standard Panels

Best cost per watt for homes, ground mounts and carports.

See my picks →

Ground Mount

Fast to assemble, engineered and legal for permitted installs.

See my picks →

Roof Mounted

Low-profile systems engineered for secure, long-lasting roof installations.

See my picks →

Solar Carports

Dual-purpose structures that provide shade while generating clean energy.

See my picks →

Beginner Pick

Anker Solar Generators

Build a system in minutes! Beginner friendly and reliable.

See my picks →

Jackery HomePower

This is the only Jackery that I like. The output for the size and price is fantastic.

See my picks →

Don’t Forget the Small Parts

Complete your backup system with the wiring, protection, monitoring, and installation equipment required for safe and dependable operation.

What Do You Need to Keep Powered?

The devices you need to power, their peak demand, expected outage duration, and available charging sources determine the right system size and configuration.

Portable Backup

Keep phones, laptops, lights, internet equipment, and selected appliances running.

Essential Backup

Automatically power refrigeration, lighting, communications, selected outlets, and other critical circuits.

Whole-Home Backup

Support most household circuits with enough battery capacity and inverter output for larger loads.

What Can Your 
System Keep Running?

A properly sized backup system can support anything from basic electronics to most household circuits. Battery capacity determines runtime, while inverter output determines which devices can operate at the same time.

Everyday Essentials

Keep lights, outlets, internet, security, phones, and computers online.

Refrigeration & Food Storage

Maintain refrigerators and freezers throughout an outage.

Water & Medical Equipment

Support well pumps, sump pumps, selected medical devices, and other critical equipment.

Heating & Cooling

Run selected HVAC equipment with a system designed for its continuous and startup power requirements.

Motors, pumps, air conditioners, and heating equipment can require significant startup power. Account for both energy use and peak demand when sizing the system.

Battery, Solar, or Generator?

Understanding how each backup power option works helps you choose the right level of reliability, runtime, and independence for your home.

The most resilient systems combine battery storage with at least one reliable charging source.

Battery Backup

Provides quiet, automatic power without fuel, fumes, or manual startup.

Solar + Storage

Uses sunlight to recharge the batteries and extend runtime during longer outages.

Battery + Generator

Combines automatic battery backup with generator charging when additional runtime is required.

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