# Large scale application of OEM

**URL:** <https://community.openenergymonitor.org/t/large-scale-application-of-oem/25292>\
**Category:** Hardware\
**Created:** [7 January 2024 17:29 UTC](https://community.openenergymonitor.org/t/large-scale-application-of-oem/25292 "2024-01-07T17:29:50Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![pmartens07](https://community.openenergymonitor.org/letter_avatar_proxy/v4/letter/p/ebca7d/32.png) [@pmartens07](https://community.openenergymonitor.org/u/pmartens07)\
**Post date:** [7 January 2024 17:29 UTC](https://community.openenergymonitor.org/t/large-scale-application-of-oem/25292/1 "2024-01-07T17:29:50Z")

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Hello all,

We are working with a company in Rochester, NY, USA to build a large scale battery supported micro grid for our farm. We currently have a 96kW single phase service are operating the farm on a 150kW diesel generator and 75kW phase converter. Our goal is to increase our installed PV and get away from needing the generator, at least most of the time.

As a part of this design process we have realized that we don’t really have a good idea of how much power we use where and I have not been able to find a good system for tracking our power usage aside from the system offered by emporia which does not support use on 480y277 systems (which we have).

I am looking for help developing a system that could monitor at minimum the 4 3 phase branches and 4 single phase (240v) of our power use but much better would be a comprehensive monitor of about 80 loads around the farm.

Does anyone have ideas or pointers?