According to the current policy recommendation

According to the current policy recommendation (Stated Policies Scenario/STEPS), about 40 million BEVs and PHEVs will be sold a year. This means that one out of every two new cars will be electric.

If this happens, electricity demand for electric vehicles will increase from now (115 TWh) to 1,000 TWh in 2030. This is similar to Japan's total electricity demand. In the process, oil demand is expected to decrease by 1 million BPD in 2030. Considering the accumulated supply of ICE, it is not possible to see a sharp drop in oil demand until 2035.  

Even if it goes according to P.S. STEPS, the proportion of EVs in new car sales in 2035 is slightly over 50%.
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In the STEPS, electric car sales reach more than 40 million globally by 2030, which means that nearly one-in-two cars sold that year will be either a battery electric or a plug-in hybrid vehicle.

In the STEPS, electricity demand from EVs rises from 115 TWh today to around 1 000 TWh by 2030 – an amount equivalent to today’s electricity demand in Japan. This increase accounts for around 15% of total global electricity demand growth.

However, oil demand for passenger cars declines by 1 mb/d from today’s levels by 2030, and this is largely responsible for global oil demand reaching a peak by the IEA.