1. The problem statement, all variables and given/known data How much percent can CPVs (Concentrated Photovoltaic cells) convert solar energy into electrical energy? 2. Relevant equations 3. The attempt at a solution According to this page, "http://www.benefits-of-recycling.com/solarenergycars-2/ [Broken]", 20% of solar energy is converted into electrical through normal solar panels but I'm wondering how much would CPVs increase the amount of current generated? It can be a general answer.