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Articles

Analysis on energy, transportation, and the economics of driving.

ANNUAL SAVINGS · ELEC VS GAS Wrangler 4xe $135 RAV4 Prime $122 Pacifica PHEV $120 Escape PHEV $101 CR-V PHEV $79 Prius Prime $45 Tucson PHEV $39
Comparison

Which Plug-In Hybrid Actually Benefits from Home Charging?

At national-average electricity prices, the BMW X5 xDrive45e saves six times more per year than the Toyota Prius Prime. Here's the counterintuitive math behind PHEV charging costs. Read →
6 STATES · GAS IS CHEAPER GAS 7.5¢ per mile ELECTRIC 9.6¢ per mile GAS WINS · MASSACHUSETTS
Analysis

When Charging Your Plug-In Hybrid Costs More Than Filling It Up

Gas prices spiked, so you figured you'd just drive on electricity. The math in your state may disagree — here's what the numbers actually show. Read →
Fuel Economy and Environment EPA DOE ELECTRIC VEHICLE ENVIRONMENT kWh PER 100 MILES 30 (city) 32 · (hwy) 28 FUEL ECONOMY 94 MPGe miles per gallon of gasoline-equivalent combined · City 100 / Hwy 86 29 worst best 131 94 MPGe Range of all vehicles: 29 – 131 MPGe Annual fuel cost: $800 · 15,000 mi/yr · $0.17/kWh national avg. FUEL ECONOMY & GHG RATING 1 10 7 (Worst 1 — Best 10) Tailpipe CO₂: 0 g/mile Grid emissions vary by state and utility. SMOG SCORE 1 10 7 (Worst 1 — Best 10) DRIVING RANGE 42 miles when fully charged CHARGE TIME 240V / 7.2kW: ~2.5 hr 120V / 1.4kW (standard outlet): ~12 hr Actual results vary. Based on manufacturer data. fueleconomy.gov
Analysis

Why MPGe Is the Most Misleading Number on Every EV Sticker

MPGe was built for a world where electricity and gasoline prices moved together. That world ended in 2024. Here's what the data shows now. Read →