whats is the current global enery supply
¿después de esos 5 millones que?
We just have to up the use of renewable energy and follow countries like Denmark and Norway.
What is solar energy?
What is solar panel?
The Sun will radiate energy until it ceases thermonuclear fusion, in around 5 billion years.
The solar power that enters the Earth's system is 1.1 × 105 Terawatts (TW) - 0.3 × 105 TW to atmospheric heating and 0.8 × 105 TW absorbed at the surface.
This is equivalent to a global energy supply of 3.5 × 10 6 EJ yr-1.
About 33% of the solar power that enters the Earth's system heats the atmosphere and contributes to setting winds and waves in motion.
Of that reaching the Earth's surface, 70% falls on the sea, setting in motion ocean currents and a large proportion of the circulation of water vapour in the atmosphere because of evaporation from the ocean surface. The remainder falls on the land.
Solar energy is redistributed through interlinked surface systems:
• the carbon cycle based on photosynthesis;
• atmospheric circulation and the water cycle;
• winds and ocean waves; and the ocean current system.
Each of them is a potential source of useable energy. In every case, with the exception of the energy available from surface water flow, humanity comes nowhere near exploiting the Sun's potential to supply useable energy - in fact, we really do not know the practical limits. Whatever those are, they will not disappear as a resource - all are renewable.
Compare this with the solar energy stored chemically by the degraded products of photosynthesis in fossil fuels.
Although carbon burial adds continually to that resource, its pace of renewal (between 1 to 10 GigaWatts) is about 2000 times slower than we use it.
This means that fossil fuels are non-renewable and declining extremely quickly in terms of human history.
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