Always-On Power
Reliable backup solutions designed for your home — whether you use solar, a generator, or the grid.
Backup power isn’t one-size-fits-all. We help homeowners explore and install home batteries and standby generators from trusted manufacturers, matched to your energy needs, usage patterns, and home setup.
THE RIGHT BATTERY FOR YOU
Backup Power That Fits Your Home
Power outages, rising utility rates, and grid instability make reliable backup power more important than ever. Whether your goal is full-home protection, essential-load coverage, or long-term energy independence, we help you find the right solution — without brand bias or unnecessary complexity.
We support homes with:
Solar + battery systems
Battery-only installations
Standby generators
Hybrid battery + generator setups
Trusted Backup Technologies
We work with proven, industry-leading technologies to ensure performance, reliability, and long-term value.
Home Battery Systems
Store energy for use during outages, peak hours, or overnight. Battery systems provide quiet, automatic backup and integrate seamlessly with modern energy management tools.
Standby Generators
Generators provide dependable power during extended outages and are ideal for homes that require long runtimes or do not rely on solar energy.
Generator solutions are available for:
Whole-home backup
Critical systems only
Automatic transfer operation
Supported Battery Brands
Control Your Power
Get More Control Over Your Energy
Protection During Outages
Keep lights, appliances, and essential systems running when the grid goes down.
Flexible Power Options
Choose battery storage, generator backup, or a hybrid setup based on how your home uses energy.
Works With or Without Solar
Our recommendations are based on your home — not whether you already have solar installed.
Smart Monitoring & Control
Many systems include mobile apps that allow you to monitor usage, manage loads, and optimize performance in real time.
Why Homeowners Choose Us
Many customers come to us after visiting a generator brand website and feeling unsure about what to do next. That’s where Islandwide Generators adds value.
Personalized Recommendations
We assess your energy usage, outage risks, and home layout to recommend solutions that make sense for you.
Access to Multiple Technologies
Instead of limiting you to a single brand, we help you compare leading options side by side.
Certified Installation Network
Your system is installed by licensed, experienced professionals who meet manufacturer and regional standards.
Clear, Honest Guidance
No pressure. No sales gimmicks. Just straightforward advice and dependable solutions.
Simple Process. Proven Results.
Power Assessment
We start by understanding your home, energy usage, and backup goals. This includes how often you experience outages, which systems matter most during a blackout, and whether your home currently uses solar, a generator, or the grid alone. This step ensures every recommendation is based on real needs — not assumptions.
System Matching
Using the details from your assessment, we identify battery and/or generator options that align with your lifestyle, energy demands, and budget. Instead of pushing a single solution, we explain the advantages and limitations of each option so you can make an informed, confident decision.
Professional Installation
Once a system is selected, you’re connected with licensed, experienced installers who handle permits, electrical work, and system setup. Installations follow manufacturer standards and local regulations, ensuring safety, performance, and long-term reliability from day one.
Ongoing Confidence
After installation, your system is backed by manufacturer warranties and ongoing support. Many systems include monitoring tools that allow you to track performance and manage energy use in real time — giving you peace of mind long after installation is complete.
Find the Right Backup Power for Your Home
Answer a few quick questions and receive a personalized recommendation for battery and generator options that fit your home.
Power Outage or Urgent Generator Need?
Who We Serve
We proudly support a wide range of customers throughout Hawaii, including:
- Homeowners
- Small and large businesses
- Hotels and resorts
- Multi-unit residential properties
- Commercial and industrial facilities
No minimum job size. No one-size-fits-all approach.
Frequently Asked Questions?
Who can install a battery or generator system?
Most homeowners are eligible. We confirm compatibility based on your home, electrical setup, and local regulations.
Is a battery or generator better?
It depends on your outage duration, energy usage, and whether you have solar. We help you compare both options.
Can I install a system without solar?
Yes. Batteries and generators can be installed with or without solar.
How long does installation take?
Most installations are completed in one to two days after permits and equipment are ready.
Are incentives or financing available?
Availability varies by location and system type. We’ll help identify any programs you may qualify for.