Role of green electronics in low carbonated society toward 2030

METI is aiming at highly electrified society to reduce CO₂ emission by half in 2050. In the society, power electronics has to be used ubiquitously for efficient and effective usage of electricity. Role of innovated Power electronics; green electronics, is surveyed from the various points of view. It is confirmed that use of electrical power makes a low CO₂ emission society possible with introduction of green electronics. Standing on this point, promotion scenario of green electronics is examined. Effectiveness of s negawatt cost is discussed for green electronics promotion. Three application areas of Green electronics are discussed. Enabling seed technologies also discussed. All most 17% of CO₂ emission could be reduced by innovations of motor s system and power supply chain. It is necessary to have interdisciplinary participants to create future green electronics world.