We’ll control assets on your behalf to provide flexibility to the grid. We will always do so in a way that protects users and earns them cash.

Principles of dispatch

We’ll operate assets within the constraints you provide us.

Typically we’ll be optimizing to maximise flexibility revenue within a hierarchy of constraints:

1

User's intent

If we know that the user needs a certain amount of charging, or their house to be at a certain temperature, we’ll ensure that need is met.
2

The user's tariff

We always make the end user money. We’ll typically avoid displacing usage into peak periods. The only exception is where we’re confident we can earn the user far more than we’re costing them: for instance, we may charge a battery before a period of extremely high prices, to ensure we can export energy back to the grid to benefit from those prices
3

Constraints you provide

The duration and extent of dispatch you’re happy with. For instance, you may only want to allow us to pause charging for an hour at a time, on weekdays.

Types of dispatch

Event-based

Event-based dispatch is where we receive a signal from the market operator to provide flexibility. Typically, these dispatches will be short-lived, and for a specific amount of time.

Common examples include:

  • pausing EV charging because the local grid is strained
  • exporting from a battery due to system tightness
  • reducing HVAC demand during a peak period

In this case, Axle’s dispatch of the asset is infrequent: it’s a temporary interruption to the normal operation of the asset.

Delegated Control

Delegated control is where Axle takes responsibility for the operation of the asset over a longer period of time. This is helpful when we have an opportunity to continuously optimize the asset, for instance in the wholesale market.

For instance, this could be:

  • smart-charging of EV’s, scheduling charging to take advantage of low prices
  • optimising a battery to maximise self-consumption of solar and off-peak charging
  • optimising heat pump operations to deliver a warm home at the lowest cost

Mechanics of dispatch

You can register to receive dispatch messages via our API, or we can integrate into an existing control API for your assets.

  • Register a webhook with us that we can use to dispatch the asset
  • Send us event updates to accept or reject the dispatch

Managing assets

You can view, update, and delete assets and sites via the API.