Maybe you've missed that they're an island and this is the cheaper alternative to diesel? They've done this all with their own money, they're not a VC firm willing to make big investments "just for show".
perhaps that explains the desirability of "for show" elements
It just seems like agenda pushing.
How does a subsidy of £1.66 million for an investment which serves a whole community compare with a single payment for the personal consumption of an individual who belongs to a group whose acts have resulted in economic depression for the last 10 years?