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1 jan 1970 ano - Exxon lowerd the cost of solar cells

Descrição:

Exxon funded research of Dr.Elliot Bernam to prodice a cheaper solar cell. The cost was brought down from $300 to about $20 per watt.

Adicionado na linha do tempo:

12 nov 2018
0
0
292
econ

Data:

1 jan 1970 ano
Agora
~ 54 years ago
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