- Research Institute for Photobiological Hydrogen Production
Our need for the explotation of renewable energy
The Amount of Solar Energy is Huge
The amount of solar energy is huge (2.7 × 1024 J/year) But low in intensity ( about 1,500 kWhm -2yr-1 )
(vs. fossil f.)
Fossil fuel consumption
|(Social primary energy use)||(513)||(1.23)|
(received on Earth's surface)
|Human digestive energy intake||20||0.05|
We are consuming a huge amount of energy !
|Digestive energy intake||2000kcal/day/capita|
|Social energy from fuels world||20 times|
about 5% of the world's energy use from fossil fuels.