Oil replacement hype

Here we see a persistent problem not just on the internet but indeed all of the world's press -- how do you know what to believe and what to disregard.  People have many reasons to lie -- hype to raise money perhaps most common, but wishful thinking and pious fraud (frauds to "save souls" are seen by many as being acceptable behavior) ranks right up there.

I don't know about these stories; I tend to take technology at face value but usually it turns out to be hype.  This is why the conspiracy theories about evil giant oil companies suppressing new technology are around -- people get the wrong impression from the hype that replacing oil is easy.