energy

Borrowing The Sun When It Should Be Free

By Hatem Hamam, head of sales, MENA, Vikram Solar   Let’s agree that the limited reserves of fossil fuel and its growing impact leading to environmental degradation highlights a very costly, dangerous, and unsatisfactory future for our world. It is easy to understand that as the fossil fuel reserves near depletion, the cost of fossil fuels …

September 27, 2018

EROI of solar energy

What is energy returned on energy invested (EROI)? Energy returned on energy invested (known as EROI or sometimes EROEI) is the ratio of the amount of useable energy produced by a given energy source to the amount used by humans to acquire it. For example, if an oil extraction facility requires 1 gigajoule (GJ) of …

April 21, 2016

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