Originally posted by Chogy
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The alternative energy situation needs to be handled with a distributed approach, IMO. Approaching it like there is one or two correct solutions is naive, IMO. A near term capitalization on fossil fuel and fission nuclear, followed by a long term fusion and geo thermal energy solution - handling base loads high density grid requirements, and intermittent sources like solar, tidal and wind; applied in situations where they are suitable, will be the ideal solution as far as I can see. The need for batteries is a big detractor, they need to be replaced regularly - all the intermittent power sources have this issue. I do believe that many of these 3rd world tiny villages will be better served by non-reactor situation, batteries and solar cells may be the ideal solution for a few kw in the near term. Once the requirements grow to 100's of kw, the micro nuclear approaches makes sense (which offer things like: decades with no maintenance and secure underground stations with thermal or beta particle electrical generators - that simply stop providing power in a worst case scenario). Wind is more limited I believe, more maintenance, more environmental impact (it kills birds and disrupts habitats and isn't pretty besides being very fragile) - still there are many valid applications for it in rural areas - farms are an obvious application. Energy diversity is the best situation when a disaster strikes, IMO. Tidal power offers a lot of promise too, like wind it isn't steady and the installations are fragile and it kills marine life and needs batteries. If those super flywheels ever become practical, the battery situation would be less of an issue. I do think fission will eventually end up as a small spaceship application, perhaps eventually serving a function like the diesel generators on a naval ship of today.
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