Zero-export
By Priya Nair · Last reviewed A system design in which a smart meter with current-transformer clamps measures household consumption in real time and throttles the inverter so production never exceeds what the home is using — no power flows out to the grid. US vendors such as CraftStrom sell zero-export kits in states without plug-in frameworks on this basis.
Why it matters
Zero-export removes the back-feed objection that drives most utility concerns, which is why it anchors 50-state sales strategies. It is a real, measurable mechanism — but it is a design property, not a legal permission: utility interconnection rules still apply and vary.