As automobile giants and customers are turning their attention from conventional cars to electric cars, the lack of charging stations continues to discourage many. Automakers like Chevrolet and Tesla are delivering more e-models capable of providing longer range with lower prices. Many countries have set aggressive targets for e-vehicle sales to curb pollution. For instance, Britain aims to become all-electric by the end of 2040.

However, those lofty ambitions continue to face a number of challenges, including consumers’ concern about lack of charging facilities.

As public charging remains scarce at many places, people who need to travel more than the 200 miles or so that most e-cars can travel face problems, which is discouraging even potential buyers.

It's a very different landscape in New Berlin, Wisconsin, where Jeff Solie, a resident of New Berlin, Wisconsin, relies on the charging system he installed in his garage to charge his two Tesla sedans and a Volt.

The International Energy Agency recently stated that the number of publicly available charging spots grew 72 per cent to more than 322,000 worldwide last year, but the figure remains well behind the required number of charging spots.