Motor Development International (MDI), based near
The premise of this engine design is basically the same as any boring gas-electric hybrid. It just makes more sense to store the energy in a fuel cell hybrid instead of using even more energy to compress air, which is a notoriously poor way of storing energy. Simple thermodynamics show us that energy conversion is incapable of being 100% efficient, so as energy is transferred, more and more is lost. Also preventing the CAT car’s acceptance is the fact that the infrastructure is completely lacking. It is a nice thought that you can just use the compressor sitting in your garage, but compressors capable of generating the required pressure of 4,500 psi aren’t readily available. If the investment was going to be made to update the infrastructure, we would be better off making the investment in hydrogen systems. Hydrogen has a higher energy content and is much more efficient. As for marketing, however, there might be just enough hot air coming out of MDI headquarters to give every buyer their first full tank without charge.
Am I wrong to worship at the altar of hydrogen?
Link to CAT car article: