User:HalidaSalfa/sandbox

Sustainable Energy
definition: sustainable energy is a new type of energy emerge around 20st centuries, which aim to provide green energy for people in today's generation as well as the future generation.

history: Since the era of industrialisation, many countries around the world use energy to support their needs. However, more countries are trying to be a sustainable countries.

type of energy:
 * 1) Wind Power: sustainable energy generated from the wind turbines.
 * 2) Solar Energy: Realising the big potential of energy frrom the sun, human realises that it must be utilized for the better of the world environment. Concern about excessive use of fossil fuel has stimulate many scientists, science lab and companies to do innovation in the context of energy security. The first development of solar energy system was made by .... Solar energy rely on the presence of solar panel, which often made from special-purposed glass. This panel function as a medium to capture the heat that constantly produced by the sun and then, it is converted to mostly electrical energy that act similarly as conventional energy. Alongside the mass production of the supporting technology of solar system, solar energy system has been adopted by various houses, governmental industries as well as private companies. Particularly in tropical states where the potential of sun is greater than the rest of the world, they supposed to be the leadeer of solar energy user. Nonetheless,, it happens in reality that as a a matter of fact, solar energy is mostly developed in more-developed countries due to advance in technology and economy.
 * 3) Geothermal: this type of energy uses the earth heat to create energy.

example of successful countries or cities:
 * 1) 1. Copenhagen
 * 2) 2. Amsterdam
 * 3) 3. Vancouver