As the day comes to an end and everyone is settling down for the Main Street Electric Parade, yet another scent is used.
For most of the time since it was founded in 1899, the Nippon Electric Company's main customer was the state.
Kempton argues his idea doesn't have to wait for cheaper batteries, the main stumbling block to production of electric vehicles.
The "quick drop" system was supposed to remove one of the main obstacles to the adoption of electric vehicles, namely the several hours it takes to recharge a flat battery.
In the last decade, main stream corporations like Walmart, General Electric and Waste Management got into the act with eco-innovations to better meet customer and investor expectations.
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He said they had enlisted the help of a local manufacturing company to rewind the 18Kw electric motor, which failed on the main plant.
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It is true, though, that the spread of electric lighting means many people eat their main meal of the day in the evening, when natural daylight is long gone the obverse of a mouse eating during daylight hours.
So while electric cars might not yet be ready for main street America, they are quietly coming.
Visitors are admitted through an electric gate into a patio garden and then into the main house.
The main snag: because of their low speeds, today's electric cars are generally illegal on any street with posted speeds above 35 mph, making them only marginally more useful than a Segway in treacherous suburbia.
The main obstacles, according to Mr Urquhart, are the comparatively short range of electric vehicles and the lack of places to charge them.
Apart from an ancient aluminium complex, Montenegro's main industrial hope lies on the drawing-board: a chain of hydro-electric plants that could supply power to Albania and Greece and across the Adriatic to Italy.
The other main joint venture, Ford-led Ecostar, takes the machinery from Stuttgart and fits it into electric motors, transmission and control equipment to make a fuel-cell engine that can turn the wheels of a car or a bus.
The main reason has been the difficulty in convincing municipalities to get on board, said Mr Wechlin, as electric buses are usually a lot more expensive than petrol or diesel powered ones.
The main factor in the slow rate of change probably has had to do with the structure and culture of the electric industry.
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With just 11 villas and six rooms in the main lodge, the intimate hillside resort bans cars from coming within 1km of the hotel (guests arrive via electric buggy).
Detroit was going to move slowly, he figured, to avoid undermining its main business, and U.S. startups, including Tesla and Fisker, were planning to sell luxury electric cars for more than eighty thousand dollars each.
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