Renewable Energy Conferences.com | Renewable Energy Events, Conferences, Exhibitions, Training and Seminars: As Rooftop Temps Rise, Power Decreases in Crystalline Silicon Solar Modules As Rooftop Temps Rise, Power Decreases in Crystalline Silicon Solar Modules ================================================================================ REC.com on 12/07/2010 15:06:00 The performance of crystalline silicon declines amid rising temperatures of rooftop modules.