Solar PV manufacturers are switching over to higher efficiency monocrystalline cells to increase power output, but for solar energy systems, overall module output is key. “In order to balance costs and the power efficiency of solar systems, it is important to reduce CTM (cell to module) loss as well as place greater emphasis on module assembly technology and materials application,” said Jason Huang, research manager at EnergyTrend, a division of the Taiwan-based market intelligence firm TrendForce.