Works with
Lower bills from your battery, without changing tariff
Axle automatically plans when to charge, power your home and export energy, using your tariff, solar forecast and household usage.
- Keep your supplier
- Switch back whenever you like
- Earn from Axle Events too
Already with Axle? Switch on the Optimiser in your settings
How the Optimiser works
Set it up once. From then on, Axle plans your battery for you, every day.
1
It learns your home
Your smart meter readings show how much power your home uses, and the weather where you live tells us how much solar is on its way. Together they make a forecast for your home.
2
It plans every night
Around midnight, your battery gets a plan for the next 24 hours: when to charge, when to power your home and when to sell, based on your tariff's prices.
3
It re-plans as things change
If the forecast shifts, a grid event comes up or your battery comes back online, the plan updates during the day.
A day with the Optimiser
Your plan is different every day. Here's what a typical one looks like on two kinds of tariff.
On a day/night tariff
- Charges in your cheap overnight window, leaving room for the day's solar
- Fills the rest of the way from your panels
- Runs your home from the battery through the expensive evening
On a dynamic tariff
- Charges in the cheapest half-hours of the night
- Leaves room to fill up for free from your solar
- Sells to the grid at the evening peak, when export pays most
Built around your home
Makes the most of your solar
Stores free solar power for the evening instead of exporting it cheaply, and sells it when export pays more.Looks after your battery
About one full charge and discharge a day, always within your manufacturer's limits.Shows you the plan
See today's plan and what it has saved you in your Axle account.
Not a tariff, just a smarter battery
Keep your supplier and your deal. Then choose how Axle runs your battery: on your own schedule, or planned for you by the Optimiser.
| Events Only | Optimiser | |
|---|---|---|
| Keep your supplier and tariff | Yes | Yes |
| Who plans your battery | You, in your battery's app | Axle, every day |
| Follows your tariff's prices | When you update it | Automatically |
| Plans around your solar forecast | No | Yes |
| Re-plans when things change | No | Yes |
| Grid events at £1/kWh | Yes | Yes |
| At least £10 a month | Yes | Yes |
| Works with | Every supported brand | Fox ESS and GivEnergy |
Trusted by battery owners
Here's what a few of them say.
“The service from Axle has been brilliant. Even when a few small issues popped up, they were responded to and sorted right away. … I love what Axle are doing—VPP is definitely the way forward!”
“Axle VPP really complements my Fox ESS solar and battery system, providing an extra source of revenue for my exported electricity. … Highly recommended!”
“After my inverter company went into administration, I was worried about my investment in solar. Axle Energy stepped in, kept everything running, now earns me at least £10 a month from export.”
Frequently asked questions
No. It's a way of running your battery, not a way of buying electricity. You keep your supplier, your tariff and any export payments you get today.