If you have an EV or plan one in the next two years, doing the panels, battery, and Level-2 charger as one integrated install is meaningfully cheaper than coming back later.
An EV charged from your own solar costs roughly 3¢/mile in fuel — compared to about 13–18¢/mile for gasoline at typical prices. Bundling the EV charger install with solar saves $1,500–3,000 in electrical work and avoids the disruption of pulling permits twice.
In any of these cases, ask the installer to pre-wire for an EV charger anyway — running conduit and a 240V circuit to the garage during the solar install adds a few hundred dollars. Coming back to do it later costs $1,500–3,000.
Tesla Wall Connector. Best fit if you have or are planning a Tesla. Works with non-Tesla EVs via NACS-to-J1772 adapter. ~$500.
ChargePoint Home Flex. Universal J1772 plug, works with all non-Tesla EVs and Tesla via included adapter. App-controlled scheduling. ~$700.
Wallbox Pulsar Plus. Compact form factor, strong app, works with all EVs. ~$700.
Enphase IQ EV Charger. Integrates with Enphase solar + battery system for unified app and intelligent solar-charging coordination. ~$800.
Everything in the panels + battery configuration (panels, inverter, racking, battery, transfer switch, critical loads subpanel), plus: Level-2 EV charger (typically 7.6 kW or 11.5 kW output), 240V circuit run from your main panel to the garage, mounting and weatherproofing if installing outside, electrical panel upgrade if your existing panel can't handle the additional load (typical add: $2,000–4,000).
A typical EV uses about 30 kWh per 100 miles. Driving 12,000 miles per year requires about 3,600 kWh of charging — roughly 30% of what an average residential solar system produces. If your installer sizes the system to cover both home consumption and EV charging, the EV essentially "drives free" on your existing roof investment.
This is part of why we recommend up-sizing the solar array when you add EV charging — typically an extra 2–3 kW of panels above what you'd install for home-only consumption. The marginal cost per added kW is much lower than installing those panels later.