So 3 packs having Eco Living elements wasn't enough aye?

I would, and maybe I did, vote for an eco friendly stuff pack years ago for the first community stuff pack because I liked solar panels in TS3, but I do not see how this could possibly be a fleshed out expansion pack without recycling ideas already in TS4. I am so confused by this decision. It is a major let down and I do not expect the trailer to do much to salvage this for me espcially after reading the vague game description.