We recently received an interesting suggestion from a customer in Europe, and we would like to hear more feedback from the community.

In many parts of Europe, utility smart meters expose import/export data through the P1 port. Many home batteries rely on a separate plug-in P1 meter to read this data and decide when to charge or discharge.

The customer pointed out that these P1-based meters often have relatively low update frequency and noticeable delay. Compared with them, IAMMETER meters can provide faster and more responsive data updates.

The idea is simple: if IAMMETER could provide a P1 adaptor that makes an IAMMETER meter behave like a P1 device, then users could send real-time grid import/export data directly from IAMMETER to a home battery, without adding a second smart meter.

In this specific case, the customer is already using WEM3080 together with WPC3700, and is now planning to add a Marstek Venus E battery. The request is to let the battery get its energy data from IAMMETER instead of from a separate P1 meter with a slower refresh interval.

We Are Evaluating This Idea

IAMMETER is now evaluating a possible P1 adaptor for integration with home batteries and other energy management devices that expect a P1 interface.

At this stage, we are especially interested in practical design suggestions from users, installers, and battery owners.

Questions We Would Like Your Feedback On

• How should the P1 adaptor be powered?
• Should it draw power from the grid side?
• Should it be powered from the battery side?
• Would a simple USB power input be the best option?
• Which battery brands or systems should we prioritize first?
• What refresh rate, installation style, or connector format would you expect?

Rewards for Useful Feedback

Users who provide useful design suggestions may receive:

• IAMMETER reward points. See the Contribution Guide.
• A chance to join the free trial program for the future P1 adaptor.

Yes that would be nice, i have a normal p1 meter at the momemt and a marstek battery venus A system, but if i want to see my battery seperate on the iammeter app do i need to buy another meter from aimmeter i assume ? Because i have already 2 meters  too measure the amount of sun i collected, and the amount of energy i take of the grid/net.  Hope to get a nice response