As GE adds 4-MW turbine, industry asks: How big is too big?

SNL Financial quotes mechanical engineering professor John Hall about GE’s plan to build its largest-ever, land-based wind turbine.

"How large can we go? Why don't we just build a wind turbine to the moon and be done with it?" he said. "There are reasons that we don't: We have to have a larger factory, we may not have the tooling. How do we move it around and get a crane up there?"

Read the story here.