It is indeed a fantastic idea. With this we can use the waste for something useful. In this case it is energy, and we really need that.
I've mentioned this before and I really think that more should be invested in R&D; we all know how alternative energy generation is. If 4New was somehow able to come up with a feasible cheap power generation method the proves beneficial for end-users and viable from a business perspective I think they would hit the jackpot. Especially in developing countries.
In general I agree with you but I don't think it would make much sense for 4New to invest in R&D. Research usually comes with huge costs and I think the existing technology which is state of the art, is enough for 4New. Better to invest their money/revenue in new plants.
In general, if the company dont have R&D and budget, it will not grow. 4new will also set-up something to improve on their processes to be more efficient. But that comes later.