In short, electric cars are only as good as the electricity that charges them. (A fuel’s source also matters for conventional cars; gasoline derived from tar sands is more polluting than that from most other petroleum resources, for example.)
How much does a Tesla charging station cost?
Cost estimates per station range from US$100,000 in 2013 to US$270,000 in 2015, depending on the number of stalls and other circumstances. Tesla estimates that station equipment lasts 12 years. Most car charging occurs at home or work, a situation that Tesla has compared to cell phone charging.
How energy efficient are electric cars?
According to the US Department of Energy’s Office of Energy Efficiency and Renewable Energy, “EVs convert about 59%–62% of the electrical energy from the grid to power at the wheels. … An electric motor typically is between 85% and 90% efficient.
How much does a Tesla increase your electric bill?
If you have the Performance variant — which has a range of 348 miles — it costs $15.29 for a full charge based on electricity prices of 13 cents per kWh and 85% charging efficiency. That gives you a charging cost of 4.4 cents a mile, or $4.40 per 100 miles.