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The article mentions it:Serial_Worrier wrote:Wow - not a single mentioning of how to provide baseload electricity, not a serious article at all.
Geothermal and tidal are better suited to baseload applications. I also bolded the section above I felt could help with intermittency issues:The main WWS challenge is that the wind does not always blow and the sun does not always shine in a given location. Intermittency problems can be mitigated by a smart balance of sources, such as generating a base supply from steady geothermal or tidal power, relying on wind at night when it is often plentiful, using solar by day and turning to a reliable source such as hydroelectric that can be turned on and off quickly to smooth out supply or meet peak demand. For example, interconnecting wind farms that are only 100 to 200 miles apart can compensate for hours of zero power at any one farm should the wind not be blowing there. Also helpful is interconnecting geographically dispersed sources so they can back up one another, installing smart electric meters in homes that automatically recharge electric vehicles when demand is low and building facilities that store power for later use.
Because the wind often blows during stormy conditions when the sun does not shine and the sun often shines on calm days with little wind, combining wind and solar can go a long way toward meeting demand, especially when geothermal provides a steady base and hydroelectric can be called on to fill in the gaps.
A 20 MW plant is already operating in Spain: Gemasolar Thermosolar PlantThe same analysis estimates that concentrated solar power systems with enough thermal storage to generate electricity 24 hours a day in spring, summer and fall could deliver electricity at 10¢/kWh or less.
Serial_Worrier wrote:Wow - not a single mentioning of how to provide baseload electricity, not a serious article at all.
Graeme wrote:The answer is yes but preferably in a society where economic and population growth is zero.
JohnRM wrote:Graeme wrote:The answer is yes but preferably in a society where economic and population growth is zero.
And there it is. I was wondering how long it would take for someone to say it.
Not only zero growth, but also far less than 7 billion people, I'm afraid. I would guess - and it is just a guess - that we will probably require a reduction to less than 3.5 billion, perhaps as low as 1 billion.
Is it possible that renewables can supply 100% of our energy needs?
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