Hi everyone,
I have a Victron setup with a Multiplus II, Cerbo GX, and 42 kWh of battery storage. Most days, my batteries are fully charged before 1 PM, and I often have excess solar production.
I’m exploring the idea of compensating a neighbor’s consumption by injecting exactly the amount of power they are using at any given moment — even if that means drawing from my batteries when there’s no sun. I would place a consumption meter at the neighbor’s house, which sends real-time data via MQTT. Then, using Node-RED on the Cerbo GX, I would dynamically adjust the feed-in power to match their current load.
Technically, I know Node-RED can control the feed-in level. But I have three main questions:
- Is the Multiplus II designed to handle rapid, continuous changes in feed-in power?
- What is the response time between a Node-RED command and the actual change in output from the Multiplus?
- Is anyone using a similar setup, and are there known limitations or best practices for this use case?
Any insight from others who’ve tried something like this — or understand the technical limits of Victron’s feed-in control — would be greatly appreciated.
Thanks!