NEXEN GUIDE / REVIEWED 23 AUGUST 2026
Federal battery STCs: the eligibility gates that matter
A plain-English guide to capacity, solar connection and why some C&I selections correctly show zero.
The calculator must gate eligibility
An estimate is shown only where the selected nominal battery is within 5–100 kWh and the associated small-scale solar pathway remains within the SRES limit.
Capacity support tapers
Supported usable capacity is not valued at one flat rate. The website applies the legislated taper and limits supported usable capacity to 50 kWh.
An estimate is not an entitlement
Approved products, installation timing, scheme rules, certificate assignment and the final site design determine the actual benefit.