Power Generation Building - Mechanical generator to convert mechanical to electric power

[trickenso]

A building like a dynamo that can convert mechanical energy to electrical power (at a terrible rate of efficiency) might smooth the progression between different early game power sources, and also some alternative strategies that make use of windmills and water wheels later in the economy.

This might also allow steam generators to provide both mechanical and electrical power in the early/mid game - assuming they provide mechanical power than can then be converted - this might add additional flexibility.

Also possibly the reverse - converting electrical to mechanical power? Depends on the need for late-game mechanical machinery.

[trickenso]

I see this is mentioned in #907