Many states require revenue grade metering if you're going to be metering via the kwh. This can get expensive.
One option is to calculate what the maximum your customer can draw is based on 80% of the breaker size. And charge based on that. 20A breaker, maximum continuous load of 16A, 16(amps) x 120(volts) x 24(hours) x 30(days) / 1000(kilo) = 1,382.4kwh. At 10c per kwh, you can specify $150/ month for this circuit, and specify a maximum continuous load of 16A. If you're only going to have 3 or 4 tenants, I'd put a meter pack in (like they have on apartments) and use real meters. If you do it right, the utility company will just handle the billing. If you really do want to go the per circuit metering route, look at egauge. On Sat, Oct 1, 2022, 10:43 AM Chris Fabien <ch...@lakenetmi.com> wrote: > We are remodeling our old office building into a datacenter with 2 or 3 > tenants and a 2500 sqft general retail space. I want to be able to > sub-meter the power on a per-circuit basis, and ideally be able to assign a > group of circuits to each tenant they serve. I have seen some inexpensive > solution using small current transformers in the panel but they are > targeted at residential. The circuits needing to be metered will be from 20 > to 200A feeds. Any solutions out there like this? > -- > AF mailing list > AF@af.afmug.com > http://af.afmug.com/mailman/listinfo/af_af.afmug.com >
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