Used EV + Solar in California: Total Cost of Ownership Math

Why used EV + solar wins on TCO

California drivers have two big levers: what you pay for the car and what you pay to fuel it. A used EV lowers purchase price vs new. Home solar lowers charging cost vs SCE grid rates. Together they beat gas—and often beat new EV + grid charging—on monthly out-of-pocket.

Used EV savings vs new

A 2–3 year old Tesla Model 3, Hyundai IONIQ, or Kia EV6 can cost 30–50% less than new while retaining most of its range. Depreciation already happened—you capture the value. Before you buy, compare asking price to local comps with free Deal Scores on EV Car Expert.

Solar charging vs grid charging

Level 2 home charging adds roughly 3,000–4,000 kWh per year for a typical commuter. At SCE rates, that is hundreds of dollars annually—eating into EV fuel savings. Solar offsets those kWh so your effective cost per mile drops toward zero. Read our EV vs gas cost comparison for per-mile math.

Sizing solar for a used EV

Most drivers need 8–12 additional 710W+ solar panels beyond baseline home load. We model from your SCE bills and driving habits—not a generic calculator. Explore our used EV + solar landing page or solar for EV charging guide.

Sample 5-year stack

• Used EV purchase: Save $10,000–$20,000 vs comparable new
• Grid EV charging: ~$600–$900/year at home
• Solar offset: Charging cost drops to near-zero after payback
• Gas avoided: $1,500–$2,500/year vs comparable SUV

Powerwall for overnight charge

If you charge after sunset, daytime solar still offsets on your bill—or add Tesla products (not offered) to charge from stored solar directly. Compare $/kWh of storage vs adding more panels.

Ready to model your stack? Use our solar calculator or get a free solar quote sized for your used EV and home load.