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Solar alone won't cut it in the winter. We need wind as well.
by oezi 3y ago
Solar alone won't cut it in the winter. We need wind as well.
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- ben_w 3y agoWhile I prefer a mix of sources to avoid correlated black swan failures, technically you could power the world just fine with distributed PV and a sufficiently fat[0] wire connecting everything. [0] 1m^2 cross section if it's aluminium
- throwup238 3y agoHopefully they'll use plasma conduits instead and all the years of binge watching Star Trek and Stargate will pay off.
- pfdietz 3y agoOr with hydrogen storage.
- toomuchtodo 3y agoAmmonia.
- pfdietz 3y agoYou can store hydrogen underground. I don't think that would work as well with ammonia.
- toomuchtodo 3y agohttps://patents.google.com/patent/US2901403A/en https://patents.google.com/patent/US2901403A/en https://www.oxfordenergy.org/wpcms/wp-content/uploads/2020/11/Ammonia-as-a-storage-solution-for-future-decarbonized-systems-EL-42.pdf https://www.oxfordenergy.org/wpcms/wp-content/uploads/2020/1... https://www.nj.gov/dep/njgs/enviroed/infocirc/StorCavsIC.pdf https://www.nj.gov/dep/njgs/enviroed/infocirc/StorCavsIC.pdf (Control-F "Repauno Works") TLDR It is a superior long duration liquid energy storage system vs hydrogen.
- pfdietz 3y agoConceded! Except for round trip efficiency.
- toomuchtodo 3y agoNo worries, we are all learning together. https://pubs.acs.org/doi/10.1021/acssuschemeng.7b02219 https://pubs.acs.org/doi/10.1021/acssuschemeng.7b02219
- Night_Thastus 3y agoWhy hydrogen? Aren't fuel-cells are notoriously low density storage medium for power?
- pfdietz 3y agoFuel cells don't store energy at all, so your point there makes no sense. Also, large scale hydrogen storage for the grid would likely use combined cycle power plants to convert the hydrogen back to electrical energy, not fuel cells. Hydrogen is cheap for long term storage because underground storage caverns can be extremely cheap (solution mined in salt formations), less than $1 per kWh of storage capacity. This is how natural gas is often stored, after all. There are alternative e-fuels but they have various problems. Ammonia is touted a bit below this comment in these responses.
- throwaway2990 3y agoWind and solar are terrible solutions. Another 10-20 years and people will be complaining about cost of power as all the wind and solar need to be replaced and repaired. And the discussions on irreversible damage it’s done.
- throwbadubadu 3y agoLucky us we are past that already with nuclear, those plants never need replacement, neither heavy subsidies upfront, or also afterwards to dismantle and clean up.. why humans so stupid? Did I forgot that they also never need maintenance, as all the other tech? Except gas and coal plants, which are also maintenance free, and we can even make profit on the resources they consume!
- amanaplanacanal 3y agoNot sure how this is possible, when it’s already cheaper in many places to build new wind and solar than to burn coal in existing plants. What kind of “irreversible damage” do you have in mind?
- throwaway2990 3y agoCheaper to build yet the cost of power has gone up significantly.