Built for FoxESS.
Not adapted to it.
Your battery is already built for more.
GridPiggy is designed specifically around FoxESS battery owners, hardware and home-energy experiences — a smarter upgrade for the system you already own, not a reason to replace it.
A great battery.
A clearer way to use it.
Building for one battery family lets us make a service that feels more connected, more relevant and easier to use.
Your FoxESS battery already stores energy for your home. GridPiggy helps you use it more intelligently — household savings first, then eligible flexibility for GridPiggy Events, with the value recorded in your PiggyBank.
No generic battery marketplace. No one-size-fits-all energy app. Just a smarter upgrade for the FoxESS system you already own.
- Works with the FoxESS system already installed at home
- Household savings come first
- Only eligible flexibility is used for GridPiggy Events
- Nothing changes without clear information and consent
Compatibility, availability and Event participation depend on technical validation and program terms, and are subject to confirmation.
Stored energy is valuable.
Timing makes it smarter.
The value of electricity changes throughout the day. Solar production, household demand and grid conditions rarely line up perfectly.
A battery bridges that gap. Without intelligent coordination, the moments worth acting on — cheaper grid energy, higher export value — pass by unused. Catching one of those moments is exactly what a GridPiggy Event is.
- Store more of the energy you generate.
- Use stored energy when it benefits your home.
- Put eligible flexibility to work during an Event.
Store it now.
Use it when it counts.
Solar energy goes into your battery when it is available, and comes out when your home can make better use of it. When an Event creates value on top of that, the value goes into your PiggyBank.
Your battery does the work. PiggyBank keeps the score.
Your FoxESS hardware stays
where it is.
GridPiggy adds a smarter service layer around compatible systems. The goal is not to make energy more complicated. It is to make better decisions quietly in the background.
- Built around existing FoxESS owners
- Household energy first, every time
- Compatibility subject to confirmation
You already own the hardware.
Upgrade what it can do.
Save with your FoxESS battery. Earn through GridPiggy Events. Watch the value grow in your PiggyBank.
Exclusively for eligible FoxESS battery owners.