Opinion: How much gas is needed to support power system that is led by renewables?

World News: . []

Imagine the planning of the electricity system as a builder who wants to build a sturdy wall at the lowest cost. In the old world, the cheapest way to construct such a wall was to use rectangular bricks, akin to coal or nuclear in the power sector. To hold the wall together, expensive cement (mid-merit and diesel-fired peaking stations) was applied relatively uniformly. In the new world, irregularly shaped natural stones (solar photovoltaic (PV) and wind) have become almost 50% cheaper than the ...

Read More: https://www.engineeringnews.co.za/article/how-much-gas-is-needed-to-support-power-system-that-is-led-by-renewables-2019-07-12

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