That seams to be a good solution to me. Without fertilizer energy should be effectively lost by producing wood via the greenhouse and using it as fuel. With fertilizer the direct use of petroleum gas to solid fuel should yield more energy. Ontop of the energy requirement to produce wood being large...

1) Is there a way to place modules into buildings without opening the building's UI? Likewise, can I copy the modules from one building and put them in other buildings. It's annoying to place a mix of modules in a large number of buildings. 2) Is there a shortcut to move a stack to a logistics trash...