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1 janv. 1970 - Exxon lowerd the cost of solar cells

Description:

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.

Ajouté au bande de temps:

econ

12 nov. 2018

0

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465

Date:

1 janv. 1970

Maintenaint

~ Il y a 55 ans

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