Spain's 386,000 electric cars already save the equivalent of 4 oil tankers a year

386,000 electric cars in Spain: a real saving of 4 oil tankers a year, or a debatable balance?

The 386,000 fully electric vehicles already on Spain's roads avoid the consumption of 4 oil tankers a year, according to a calculation shared on social media. Striking as the figure is at face value, it opens a debate that goes beyond the headline: how much oil is really saved once the full life cycle is considered? Spain's car fleet totals 35 million vehicles, and electrics account for just 1.1%.

The oil tanker calculation
Four oil tankers (each with a capacity of 300 to 500 million litres) equal roughly 1,200-2,000 million litres of oil a year. With 386,000 EVs, each car would avoid between 3,000 and 5,000 litres of fossil fuel annually, assuming average use of 15,000 km and an equivalent thermal consumption of 5-6 l/100km. However, the net saving depends on how the electricity is generated.

The life cycle: manufacturing and batteries
Critics point out that manufacturing an EV, especially its battery, requires large amounts of energy and raw materials, often extracted with heavy environmental impact. A recurring point in the analysis is that the average age of Spain's car fleet is 15 years, meaning many combustion cars still have useful life left. Forcing their premature replacement with EVs could produce a negative environmental balance in the short term. In addition, battery durability (estimated at 8-10 years for optimal performance) raises doubts about the vehicle's total lifespan.

The power grid and charging times
Another issue is the source of the electricity. Although Spain has increased its renewable capacity, much charging takes place at night, when solar power is unavailable and wind is variable. If the electricity comes from combined-cycle gas plants, emissions can be similar to those of an efficient combustion car. Some analysts back e-fuels as a more realistic alternative.

The debate is not settled
While supporters highlight the reduction in oil dependence (road transport accounts for more than 50% of consumption), sceptics point to the energy and material cost of the transition. The lingering question is whether the 4 tankers saved come at the expense of other tankers used to build, maintain and scrap these vehicles.

Related debates in the forum

• This electric car is a brother-in-law silencer · 96 replies
• My doctor tells me I have to take cholesterol pills forever because my own body produces it, wtf?? · 212 replies
• The Leapmotor B05 arrives in Europe with up to 482 km of range from €22,800 · 106 replies
• Don't buy Carrefour's staged pantomime, my children · 86 replies