Solar Efficiency Records for Longi and Risen

2019 has seen solar efficiency records broken by two of the world’s largest solar suppliers. Longi Solar and Risen Energy have both seen gains in PERC technology, which stands for Passivated Emitter and Rear Cell or Passivated Emitter and Rear Contact. Read on to find out more! Monocrystalline PERC Cell Record – Longi Solar China’s…