[RE-wrenches] Large Residence ESS and NFPA 855

[Jason Szumlanski]

Has anyone dealt with a large ESS installation that exceeds the aggregate
storage limits in NFPA 855? The limits are quite low for very large single
family homes. I have a situation where we need 120 kWh minimum for an
off-grid home. There is a building dedicated for the inverters and
batteries that is 400 feet from the main home. The intent was to house the
batteries there, but we are in excess of the 80 kWh limit for an accessory
structure. It would be impractical to house part of the batteries on an
exterior wall.

Are there any "loopholes" that might allow this larger ESS for this
property? And if not, has anyone attempted to comply with Ch 4-9? That
seems onerous.

Jason Szumlanski
Florida Solar Design Group
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