I think it's useful to put the relative impact of these various devices into perspective--it helps focus efforts to reduce energy usage on the parts that matter

I think it's useful to put the relative impact of these various devices into perspective--it helps focus efforts to reduce energy usage on the parts that matter most. When we don't have this context, we tend to put outsize emphasis and burn goodwill where it doesn't matter--see, e.g., the focus on switching to plastic straws, which has relatively little impact on our plastic waste production, but does make a lot of people grouchy about having to change their habits.