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Comment Re:Wow... (Score 1) 69

A good flood risk analysis combines geophysical and statistical data. It can and in good countries is reasonable accurate for individual lots. The first part requires a detailed model of the landscape, i.e. elevation relative to the water sources in the area, ground water level, ground water flow, sediment layering, soil water capacity etc. That's all data can be survived to any desirable resolution and approximated further as needed. The flood risk analysis now puts an environmental simulation on top. That requires estimating event probabilities and for extreme weather events, is the part that is most likely going wrong. You have for example an events like "5 weeks of continuous heavy rain". It's estimate to happen one a year and the simulation shows which part of the simulation area are flooded. Those get their flood risk updated by 5%.

Comment Re: Well on this cold November evening... (Score 1) 113

I don't know about your part of the world, but here natural gas turbines can be shutdown and powered up very fast (in the area of minutes). For solar, we pretty much always have a surplus in summer during the midday peak. There is currently a long debate on how to incentivize home owners with batteries to charge later in the day.

Comment Re: Well on this cold November evening... (Score 1) 113

There are no cheap fossil fuels. But some fossil fuels are cheaper than others and e.g. a coal plant has a base line cost of operation, so producing some electricity over demand in anticipation of a load spike and storing it in a battery can still be economically viable. But that is pretty much the inverse direction to grid storage for renewable energies.

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