If the country is to truly get away from fossil fuels to run its automobiles it’s yet to be determined what alternative energy source will take its place. But if hydrogen is the way of the future it’s likely that New Jersey will lead the way.

According to Jim Henry, writing for Examiner.com, the home of BMW North America is in Woodcliff Lake, New Jersey where the company is in the process of building the first hydrogen refueling stations in the U.S. which will service the company’s test fleet of hydrogen-powered cars.

The proponents of hydrogen say it’s the cleanest of all the alternatives, producing only water as a byproduct. But critics say the technology is not yet feasible and question the safety of the fuel.

Iceland is already working towards using the product as the main fuel in the country. According to the Christian Science Monitor, Iceland had hoped to convert the entire country to hydrogen by 2040, but delays in car manufacturers producing hydrogen-powered cars has placed them behind schedule.

“If somebody were to say to me today, ‘I’ll bring 20,000 hydrogen cars to Iceland every year for the next five years at the same cost as a conventional car,’ it would not be a problem for us,” Jon Bjorn Skulason, general manager of Icelandic New Energy told the news provider.

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