When the Trump administration announced last week that it was imposing tariffs on solar cell panels mostly coming from South Korea and China, it appears that the progressive blogosphere was almost unanimous in condemning the action as an attack on solar energy.

Lately I've been looking into installing solar panels.

My house faces east, with the peak of the roof running east-west so I have a pretty good stretch of roof that is south-facing. However my neighbour to the south has a pretty tall maple tree -- at least as tall as my house -- so I'm not sure whether that would affect efficiency. A similar tree on the neighbour's property behind me might block any southwest-facing panels.