The 2030 home · how energy flows

A home that makes most of its own energy.

Sunlight charges the battery and the car by day; the battery and the car power the house by night. Surplus flows back to the grid — and the grid does what's left, a 20% top-up.

7 kW rooftop solar $7,000 installed · 10,200 kWh/yr 13 kWh battery $5,200 · stores midday peak Heat pump COP 3–5 · 300–500% · gas → $0 Grid · two-way exports surplus · 20% top-up EV · vehicle-to-home charges by day · powers the house by night 80% self-sufficient