I was just thinking of having a setting in the mod settings so people can set it to whatever they want for now. They can keep it default or others like me can crank it up for massive power usage.
I really like your suggestion of blocking green modules as well as scaling up the power with quality. I didn't even think about that but it is a perfect way of offsetting the value it provides in a way that makes sense and isn't super annoying to address. I'll leave the implementation details and values to you and/or others more competent at balancing to decide.
In the meantime though could we have a configurable setting that would allow a quick solution to the problem while working on the other ideas?