220 Volt Heavy Duty Receptacle. Image credit:Angiogram

This is one of those comparison posts that that could draw many angry comments: like Could Hype Sell An Inferior Hybrid? - Ford Fusion versus Toyota Camry did. Please carefully read the caveats.

Investigators from Carnegie Mellon University, in Pittsburg PA, have made a Volt-type v.s. Prius-type design comparison which flags a big differentiator when emissions and efficiency are normallized: battery price, or, more proper...