HOME BATTERY TRADING

How can a home battery earn money?

A home battery can create value in more than one way: avoiding expensive imports, increasing solar self-use, exporting when prices are attractive and responding during short grid-support events.

There is no single ‘battery trading’ product. The right route depends on your inverter, tariff, smart meter, appetite for automation and which service is allowed to control the battery.
HOME BATTERY GUIDE
PLAIN ENGLISHCHECKED SOURCESPRACTICAL NEXT STEPS
01

Start with the two kinds of value

Savings come from changing when your home imports electricity. Earnings come from exporting energy or making flexibility available to a provider. A realistic assessment keeps these separate before combining them.

  • Avoid higher-priced imports
  • Use more of your own solar
  • Export at a useful time
  • Participate in eligible grid events
02

Grid events are short, targeted actions

A flexibility provider may ask an enrolled battery to discharge during a period when the system or a local network needs support. The provider aggregates many small devices, issues the control instruction and calculates the qualifying response.

03

Day-to-day optimisation is different

An optimiser creates a schedule around electricity prices, solar forecasts, expected household demand and battery constraints. It may charge cheaply, hold a reserve for the evening and export only when the expected value justifies the losses and cycling.

04

The tariff still matters

Cheap import windows and export rates can be worth more than an occasional event. Compare the whole household bill, not one headline rate, and include standing charges, charging-window length and any supplier restrictions.

05

Avoid competing controllers

A manufacturer schedule, energy supplier, VPP and third-party optimiser can all try to write battery settings. Before combining services, identify which one has priority, whether they are explicitly compatible and how normal settings are restored.

PLAIN-ENGLISH FAQ

Questions homeowners ask.

Is battery trading the same as exporting solar?

No. Solar export pays for generation sent to the grid. Battery trading or flexibility may deliberately charge, hold or discharge stored energy in response to prices or grid needs.

Do I need solar panels?

Not always. A grid-charged battery can still shift imports and may join a compatible flexibility service. Solar changes the economics because surplus generation can also be stored.

Will I always make a profit by charging and exporting?

No. Import cost, export value, round-trip losses, standing charges, battery limits and degradation all matter. A high export price alone is not enough.

Can I use more than one service?

Sometimes, but only where the providers and control methods are compatible. Two services issuing conflicting commands can reduce performance or breach programme terms.

CHECK YOUR NEXT STEP

Start with compatibility, then compare control.

Check your inverter ecosystem before choosing between grid-event rewards, managed optimisation or a self-managed setup.

Check my battery Check Axle eligibility

EXPLORE HOME BATTERY VALUE

PROVIDER GUIDE

Axle Energy explained

A plain-English guide to Axle grid events, eligibility, control, payments and the questions to check before joining.

Read guide
GRID SERVICES

What is a home battery VPP?

How thousands of connected batteries can act together — and what participation means for the homeowner.

Read guide
EVERYDAY VALUE

Battery optimisation explained

Compare automatic, supplier-managed and self-managed ways to charge, use and export stored energy.

Read guide
ADVANCED CONTROL

Home Assistant and PredBat

What the software does, what it needs and why it suits confident users who want detailed control.

Read guide
COMPATIBILITY

Battery brands and integrations

Why the inverter often determines compatibility, which connection methods matter and what to verify first.

Read guide