Over the period of one decade, the capitalized cost of generating solar energy in 2015 has decreased to as low as one sixth the cost in 2005, and I believe it will not take long for solar energy generation to be economically cheaper than thermal power generation worldwide.
Every year at the World Economic Forum, energy consumption and climate change are always hot topics.
Looking back at the history of human civilisation, for a long time, firewood was the primary source of energy; however, back then, energy ultilization was low and as such air pollution emissions were also low.
The invention of the steam engine in the 18th century marked the beginning of the industrial revolution, which led to the mining and consumption of coal on a large scale. In 1920, coal accounted for 62% of primary energy consumption, indicating that the world had entered the Coal Age.
In 1965, petroleum replaced coal as the most consumed energy, which led the world into the “petroleum age”. In 1979, petroleum contributed 54% of the world energy consumption, marking the second energy revolution from coal to petroleum. Up until now, fossil fuels have continued to dominate as our energy resource.
With each new age, the use and efficiency of energy have increased significantly — as have, unfortunately, levels of severe environmental pollution. Our future energy system must therefore be clean and low-carbon to ensure the sustainable development of human civilisation.
We are now embarking on a new era of energy revolution. The energy system of the future should have the following three features:
Low carbon energy production. Fossil fuels have to be burned to release energy, which caused emissions and environmental pollution. The existing intensive industrial usage of fossil fuels has significantly harmed the environment. Meanwhile, for most economically under-developed countries around the world, the cost of clean energy is too high to be affordable.
Solar power, however, is one of the best solutions. Not only is solar energy production clean, it may also soon become a much more affordable source of energy, as technology development and innovation continues to reduce the cost of solar power generation.
……. continued at Medium.com
Gao Jifan, President , China Photovoltaic Industry Association