| hydrogen is really cool, because it basically runs on stripping electrons off of hydrogen atoms, then these ions combine with oxygen in the air to make water as the only byproduct.
The thing about hydrogen is that it takes energy to produce, and as anyone who's taken some physics knows, you can't get more energy out of something than you put energy into. In other words, the hydrogen still takes electricity to produce through a process called electrolysis. Of course you could produce this in the arizona desert with solar electricity, then ship the hydrogen to the cities where it's needed. Its just a very efficient and clean way to power cars, but it still takes power to produce. |