What we call ‘green energy’ is simply renewable energy collected from natural sources. These sources include solar, water (hydro), wind, geothermal, and bio-energy like ethanol from plants. Although green energy has many advantages, it also has some drawbacks regarding efficiency per unit of fuel. The most important advantage of green energy is sustainability – its ability to cause drastically less pollution compared to energy from fossil fuel sources, like coal and oil.
Who Provides Green Energy? Are There Any Drawbacks?
Germany learned a hard lesson when it comes to renewable resources. It invested heavily in solar and wind power, however, the results were less stellar than expected, to put it mildly. Germany is now embarrassed by the complete disaster of their wind power experiment, to the point that it now builds more coal power plants. It turns out that the modern economy cannot run with electricity delivered at completely random intervals, and increasingly lowered capacity. So now who provides green energy?
Well, there is still hope. If anything, from the German experiment with renewable energy we have learned that wind is a finite source of power. It is now an accepted fact among scientists and wind farm engineers that wind is indeed a resource that can be drained. The more turbines that are erected on the land, the more kinetic energy is limited from being extracted.
Does Green Energy Have a Bright Future?
Obviously, hydro and geothermal power, although technically falling within renewable energy category, are highly limited by geography. Ethanol derived from plant fermentation is inefficient, and wildly uncompetitive compared to oil. This leaves us with only two renewable constants – solar and wind. Solar power is getting more efficient and cheaper every year. However, it will always depend on good weather, and clear skies, so large-scale battery technology must significantly advance to truly exploit solar power. As for wind power, it must be carefully placed so the kinetic energy on the land is not drained. It also requires battery supplementation.
Past Failures Are Merely Learning Opportunities
With increased efficiency of devices using and producing the energy, careful planning, and emergent battery technology, solar and wind power have a great future. This is despite their first stuttering implementation on a larger scale. These are merely necessary steps for the renewable technology to mature. It is only a matter of time before these renewable resources work in conjunction with each other to become dominant purveyors of energy. For the benefit of our modern civilisation and the world, everyone will be providing green energy.