1990s-Today (1 ene 1990 año – 1 ene 2018 año)
Descripción:
Solar cells are used in railroad crossings, homes, telecommunication, cars, aircrafts and many more things! Solar power is now an industry. The costis now $0.50 per watt... the prices have dropped 10% every year since 1980.
Añadido al timeline:
fecha:
1 ene 1990 año
1 ene 2018 año
~ 28 years