Powers Engineering

Today’s utility business model depends chiefly on big power plants and long transmission lines—and federal and state policies reinforce that model. But as photovoltaics technology advances and systems get ever cheaper, distributed generation eventually might become the more competitive option. At that point, upstart companies might be better positioned than utilities to capture a share of this growing market, because they won’t be constrained by Edison-era economics.

Photovoltaic technologies are beginning to appear more attractive than concentrated solar thermal plants. PV’s competitiveness is improving from technical and operational advancements, as well as significant commitments made by such utilities as Southern California Edison. In the long run, distributed central PV plants likely will gain a strong market position.