Engineering360: "Biggest battery storage system in Europe now online"

I checked the link in the article as well as several links found through a search engine and no where can I find out how much this Pillswood project actually costs. Why is that? Do they not want the people to find out how bloody expensive this small amount of energy delivery will actually cost the people who need this electricity?

It seems that everyone loves to talk about how green something is but not how much green you have to pay.