Ethan BrooksBy Ethan Brooks

Updated November 2026

An on grid solar system net metering setup is usually the better choice for homeowners who have reliable utility service and want their solar production to offset their electric bill. Off-grid solar wins only if your home is far from the utility grid or you need full independence from it. The rest of this comparison shows where each option makes sense.

Criteria On grid with net metering Off grid with battery storage
Connection to utility Connected to the grid at all times No utility connection
Bill impact Excess power is exported and credited No utility bill, but no credits either
Battery needed Optional Required for nighttime and cloudy days
Power during outages Shuts off without a backup system Continues running from batteries
Permitting and utility approval Required before installation Usually simpler, with no interconnection study

How Each System Handles Your Electric Bill

With net metering, your panels send surplus electricity to the grid during sunny hours, and your meter runs backward to record it. You then draw from the grid at night and receive credits against that usage. Winner: on grid, for homeowners who want to reduce their monthly bill directly. Off-grid systems have no bill to reduce, so the savings are in avoided utility charges rather than credits.

Reliability During Power Outages

A standard grid-tied array shuts down during an outage as a safety measure so it does not energize lines that utility crews are working on. Off-grid systems keep running from stored battery power. Winner: off grid, if you live in an area with frequent outages and need uninterrupted power for essential loads.

Upfront Setup and Approval

An on grid system requires an interconnection agreement with your utility, and some utilities impose technical requirements on inverters and metering. Off-grid systems avoid that paperwork but need enough battery capacity and generation to cover your full load year-round. Winner: on grid for most suburban homes, since the approval process is routine in most service areas.

Long-Term Energy Independence

Off-grid living removes your dependence on the utility, but it also means sizing batteries and panels with little margin for error. An on grid system leans on the grid as a free backup for nighttime and low-production days. Winner: on grid for most homeowners who value simplicity, and off grid for those who want complete separation from utility service.

Pros & Cons

On grid with net metering

  • Pro: Surplus production earns credits that offset your bill.
  • Pro: Smaller battery needs, or none at all, keep the system simpler.
  • Con: Shuts down during outages unless paired with a backup system.

Off grid with battery storage

  • Pro: Keeps power running during grid outages.
  • Pro: No monthly utility bill and no dependence on net metering rules.
  • Con: Batteries and extra panels add significant complexity and maintenance.

Which Should You Choose?

  • Choose on grid with net metering if your utility allows it, your roof gets good sun, and you want the lowest-complexity path to a lower bill. Pair it with a standard grid-tie inverter such as the SolarEdge SE7600H. View on Amazon
  • Choose off grid if your home is remote, outages are frequent, or you need guaranteed backup power. A battery-based inverter such as the Growatt SPF 5000ES is a common starting point. View on Amazon

Before you commit, read how the credit system works in your territory. Solar System Net Metering: How It Works and What Homeowners Should Know explains the basics, and How Grid-Tied Solar Works: Net Metering, Interconnection and Outages covers what happens when the grid goes down.

FAQ

Can I switch from an on grid system to off grid later?

Yes, but it usually means adding a battery bank and a battery-capable inverter, and you may need to disconnect from the utility. Consult a licensed electrician and your utility before making changes.

Does net metering pay me cash for extra power?

It depends on your utility. Some issue bill credits that roll forward, while others pay out excess credits at a set rate at year end. Check your utility’s tariff.

Will an on grid system work during a blackout?

Not without a backup system. Grid-tied inverters disconnect during outages for safety, so you would need a battery and transfer switch designed for islanding. A licensed installer can advise on this.

Conclusion

For most homeowners connected to a reliable utility, an on grid solar system net metering arrangement offers the best balance of cost control and simplicity. Off-grid systems make sense only when grid access is unavailable or outages are a constant concern. Check your local net metering rules before choosing.

Ethan Brooks

About Ethan Brooks

Ethan Brooks is part of our editorial team and reviews and edits our home solar guides, checking product details against manufacturer specifications and owner feedback.