Near the end you touted geothermal as being "renewable" but is it? Isn't there a finite amount of heat inside the earth?

Same question goes for wind and tidal power, I think. If we consume kinetic energy from tides and winds, doesn't that make the tides lower and the winds a little bit weaker?

Yeah I imagine it's too small a delta to worry about, but am I wrong?

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I agree fusion is still a long way away from being a useful source of energy and will not be a solution for the climate change emerency but (and you know a but was coming),I think weshould continue to fund research into funsion energy because,in the longer term, it could be a viable alternative. Wind and solar are the obvious immediate solution to the current crisis but, in the needed amount to fully electrify the whole world, their physical footprint would be huge and there are significant areas where neither are great. Fusion hype is not helpful but fusion still has potential.

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Yes, we already have that God-sized fusion reactor in the sky we call the sun.

All we have to do is put up panels and turbines to harvest a little fusion energy. Solar and wind are its energy receptors.

Let the plants take most of that fusion energy though. It'll be good to draw down all that CO2 again, and we'll need the oxygen.

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Jan 24, 2023·edited Jan 24, 2023

Dave, you answered all of the questions perfectly and with enthusiasm. I feel, in regards to Mr. Andersons' comment, that, lithium-ion batteries are the current storage of choice, such as the Tesla Power Wall; and the more companies produce, the cheaper they will become. Pumped storage is also another method, but one needs mountains or hills. Also, wind turbines or solar can produce hydrogen, from water, and then recombine it or burn it later when this storage technique is needed.

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I am in complete agreement with your belief that fusion energy, promising as it is, will not benefit us in any sort of timely fashion.

I also agree that wind and solar are some of the cheapest forms of energy to produce these days. But since both of them are intermittent production, I think we really need to factor in some form of storage cost (electric, kinetic, thermal, gravity batteries, et al) to compare their cost with carbon or nuclear energy. Do you have any information on current energy storage costs? Perhaps a subject for a podcast.

Please keep up the good work.

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