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During a grid event, Axle sends a dispatch instruction to a webhook URL you provide, as the vpp:dispatch:requested event. One instruction covers every affected asset, setting a target power for each over a fixed window. You register your webhook URL when you set up your integration — get in touch to configure it. The payload, the envelope it arrives in, the x-axle-sig signature, how to respond and the retry behaviour are all documented on the Webhooks page.

Webhooks

The vpp:dispatch:requested payload and the full delivery contract