Roger Arnold Browse All Authors Famous Quotes by Roger Arnold If one completely ignores the question of how the hydrogen is produced, there is no real downside, it’s all known technology, and the cost of the hydrogen fuel cells and tanks are probably less than the cost of the diesel engines and generators they’re replacing. Clean and quiet, no diesel fumes for passengers to breathe – what’s not to like? Roger Arnold tech Why do the Germans even concern themselves with electrolytic hydrogen, which I believe isthe method they expect to use to make the hydrogen for the new trains? There are multiple issues, but I think the bottom line is that they are anticipating a day when their grid will be powered totally by renewables and will be 100 percentcarbon-free. Then their electrolytic hydrogen will also be 100 percent carbon-free and ‘renewable,’ but they have a long way to go to get there. Roger Arnold tech
