Data from a survey conducted between November 2010 and May 2011 show consumer preferences on electric vehicle (EV) charging times. Respondents from 17 different countries were asked for their longest acceptable charge time for an EV. In Taiwan, the country with the greatest number of respondents accepting longer charge times, nearly a third of the respondents said an 8-hour charge time was acceptable, while in Japan, the country with the least number of respondents accepting longer charge times, a third of the respondents answered 30 minutes or less. Currently, most EV batteries can charge within three to eight hours. Rapid charge systems can charge an EV within 30 minutes, but these systems are expensive, shorten the battery life, and put additional stress on the electricity grid.
Question: Considering your expected vehicle use, what is the longest time to fully recharge the battery that you would consider acceptable when buying or leasing an electric vehicle?
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Supporting Information
| Country | 8 hours or less | 4 hours or less | 2 hours or less | 1 hour or less | 30 minutes or less | Total |
|---|---|---|---|---|---|---|
| Taiwan | 31% | 3% | 19% | 21% | 26% | 100% |
| Canada | 27% | 22% | 17% | 17% | 17% | 100% |
| Brazil | 26% | 18% | 20% | 17% | 19% | 100% |
| India | 24% | 27% | 21% | 15% | 13% | 100% |
| US | 23% | 18% | 17% | 19% | 23% | 100% |
| Australia | 23% | 19% | 18% | 17% | 23% | 100% |
| France | 20% | 19% | 23% | 18% | 20% | 100% |
| UK | 19% | 21% | 23% | 18% | 19% | 100% |
| China | 18% | 27% | 25% | 18% | 12% | 100% |
| Argentina | 17% | 9% | 17% | 21% | 36% | 100% |
| Turkey | 16% | 12% | 18% | 24% | 30% | 100% |
| Italy | 15% | 16% | 19% | 25% | 25% | 100% |
| Spain | 14% | 13% | 15% | 20% | 38% | 100% |
| Korea | 13% | 16% | 23% | 24% | 24% | 100% |
| Belgium | 12% | 19% | 17% | 23% | 29% | 100% |
| Germany | 11% | 21% | 21% | 21% | 26% | 100% |
| Japan | 6% | 13% | 17% | 27% | 37% | 100% |
Source: Deloitte, Unplugged: Electric vehicle realities versus consumer expectations, 2011. | ||||||