Marcy Scott Lynn, of Facebook's sustainability programme, said it looked forward "to a day when our primary energy sources are clean and renewable, and we are working with Greenpeace and others to help bring that day closer.
With global energy demand continuing to rise and oil remaining the primary energy resource, "it's a fundamental sustainability challenge to be able to combine the availability of primary energy sources with energy efficiency".
By making it possible to shift from petroleum to other primary energy sources, fuel cells could ease the threat of global warming without taking away the freedom and mobility that Americans and Europeans take for granted -- and the rest of the world is determined to get for itself.
At the same time, the deal could be viewed as a signal to global financial and energy markets, triggering a fundamental shift away from investment in coal, oil and gas as primary energy sources toward zero-carbon energy sources like wind, solar and nuclear power.
Primary energy sources have usually been batteries [1].
Primary energy sources supply load and charge batteries.
There is, in short, nothing new under the sun in the physics of primary energy sources.
Biomass is one of the primary energy sources in rural areas.
Upstream allocation: the producers and importers of primary energy sources are responsible for all carbon emissions.
In the perspective, the primary energy sources are classified into fossil and non-fossil energy categories.
The supply sub-system which consists of eight primary energy sources viz.
