Should Energy and Credits be different resources? Credits would still be produced through trade, and perhaps used to upgrade buildings and buy from the market. While energy would be gotten from generator districts and be used to mantain buildings, fleets, starbases, etc. Plus we could have financial buildings (banks, stock exchanges, etc.) be distinct from energy ones (power plant, solar panels, etc.)
I feel separating Energy and Credits would fit the new economy better. Do you think it's a good idea?
Yes. Frankly, I've never understood the whole "energy as money" thing anyway. How does one trade, or stockpile, "energy?" And if an empire were going to peg their currency to anything, why wouldn't it be minerals, something you actually *can* physically trade and stockpile?
IMO, energy should really work like food did in the 1.0 build of the game. It should be a planetary/system level resource, used to run buildings and boost production of other resources.
"Currency" should be something separate.
That would also open up some interesting possibilities for game play. The player could choose, for example, whether to pin their currency to any particular resource, or to have a free floating currency. Alliances could also come up with their own currencies, like the Euro in RL, to try and spread their influence.