An optimistic take on China and renewable energy

Economics: Manufacture renewables to build energy security

Quite a lot of surprisingly optimistic news on China and its rapid growth in renewable energy to be found in this article.  For example:

China generates more than 5 trillion kilowatt-hours (kWh) of electricity, about 1 trillion kWh more than the United States. China's rapid economic expansion since it joined the World Trade Organization (WTO) in 2001 has been based on fossil fuels: it consumes around 23% of the world's coal production for electricity. But fossil fuels alone cannot power the industrial growth the country needs to keep up with the West.

Since the mid-2000s, China has also pursued a low-carbon energy strategy. Investment in hydroelectric, wind, solar and nuclear-power generating facilities increased by 40% between 2008 and 2012 — from 138 billion renminbi (US$22 billion) to about 200 billion renminbi. The share of investment in fossil-fuel power facilities in China, meanwhile, fell from around 50% to 25% over the same period.

And for the big, big picture:

Our critics will counter that technology-based solutions raise concerns over the availability of industrial materials and land for building solar and wind devices and farms. But our calculations suggest⁶ that a global renewables push for an extra 10 terawatts of power-generation capacity could be achieved on current industrial scales over the next 20 years, by which time the world energy system would be well on the way to total conversion. Producing the extra 10 terawatts from renewables needed to transform global electric power would require more than 5 million square kilometres (about twice the size of Kazakhstan) filled with around 3 million wind turbines, 14,000 concentrated solar-power installations and 12,500 solar-photovoltaic farms. These technologies could perhaps be accommodated in the world's desert and semi-desert regions. The targets are large — but they are manageable compared with current world production levels of 1.75 billion mobile phones per year or 84 million vehicles per year⁶.