So Far So Good for Germany's Nuclear Phase-Out, Despite Dire Predictions

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10. German Study: Not Much Power Storage or Coal Power Needed for 40% Renewable Power Supply

http://cleantechnica.com/2012/10/09/german-study-not-much-power-storage-or-coal-power-needed-for-40-renewable-power-supply/

[font face=Serif][font size=5]German Study: Not Much Power Storage or Coal Power Needed for 40% Renewable Power Supply[/font]

October 9, 2012 By Nathan

[font size=3]There isn’t much of a need for power storage in Germany even if it increases the share of its electricity that is generated by renewable sources by around 50%, according to a new study by the German engineering association VDE.

Importantly, the study has shown that “baseload power – coal and nuclear – will have to go as the country switches to renewables.”

[font size=1]German engineering association VDE finds that the need for storage will be modest |up| to a 40% share of renewable power, at which point the need will increase. But the chart |above| also shows that German engineers believe that nuclear (red), brown coal (brown), and hard coal (black) are incompatible with renewable power. German engineers expect their country to mainly switch to cogeneration (fired with both biomass and fossil fuels) along with gas turbines running on natural gas and power-to-gas, a way of storing excess power seasonally.[/font]

There have been doubts expressed in the international media that Germany may not be able to switch over directly from nuclear to renewables without first relying on ramped-up coal use during the transition. But that concern isn’t a common one within Germany. As the new study shows, renewables completely ‘obliterate’ the need for baseload power.

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“In five scenarios, the VDE finds that dispatchable power generators will mainly have to be flexible, but also that this requirement can be met in all of the scenarios. And up to a 40% share of renewables, the cost of power storage (or otherwise lost excess power production) remains moderate, only raising the cost of power by 10% in the worst case,” Craig Morris of Renewables International writes.

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