Wednesday, June 10, 2009

Who killed the hydrogen-powered car?

Energy density or transportation problems didn’t kill hydrogen. What killed it is the deliverable amount of energy to the wheels of a vehicle compared to a battery solution. This is why we won't be seeing hydrogen-powered cars from Toyota (TM), Honda (HMC), or Ford (F).

The table below needs a little explanation. It starts with 100 kilowatts of electricity from renewable sources -- solar or wind for example. It then compares the steps required to get the electrical energy stored on a vehicle as either hydrogen or batteries. During each step, energy is lost -- generally as heat -- until electric power is driving the electric motors on a hydrogen fuel cell vehicle or a battery-powered vehicle. Each step shows the percentage efficiency and the remaining energy left after each step. …

Who Killed the Hydrogen-Powered Car?

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