Balu ( Head – Bio energy, Sakthi Agri Business)

The “nutrients” mentioned in the article might just be sugar, for example. Sugar is already a high-energy-density fuel that costs a lot of energy to produce, so if you use it as an input you have an inherently cost-ineffective process. And of course, turning carbohydrates to alcohol using micro-organisms is not exactly news; just ask any brewer how it’s done — the magic organism is called “yeast”.

Now if they can efficiently convert valueless biowaste, that might be worth something, but on a large scale I suspect there won’t be enough waste to have any substantial impact on national energy usage — but at least such a process wouldn’t do any *harm*.