Baseload Power

Sunday Train: The Myth of Baseload Power

In Baseload power is a myth: even intermittent renewables will work, Mark Diesendorf, Asst. Professor and Deputy Director of the Institute of Environmental Studies at the University of New South Wales (Australia), writes:

The old myth was based on the incorrect assumption that base-load demand can only be supplied by base-load power stations; for example, coal in Australia and nuclear in France. However, the mix of renewable energy technologies in our computer model, which has no base-load power stations, easily supplies base-load demand. Our optimal mix comprises wind 50-60%; solar PV 15-20%; concentrated solar thermal with 15 hours of thermal storage 15-20%; and the small remainder supplied by existing hydro and gas turbines burning renewable gases or liquids. (Contrary to some claims, concentrated solar with thermal storage does not behave as base-load in winter; however, that doesn’t matter.)

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