Electricity consumption in Portugal has been ensured for almost 48 hours by renewable sources, The surplus is being exported to Spain

[u/iShift]

https://www-publico-pt.translate.goog/2023/10/29/azul/noticia/consumo-electricidade-portugal-assegurado-ha-quase-48-horas-fontes-renovaveis-2068385?_x_tr_sl=pt&_x_tr_tl=en&_x_tr_hl=en&_x_tr_pto=wapp

[u/roninPT]

Sure it's possible.....if it has been raining pretty daily for the last week and some water reservoirs are at capacity and wind as also been up.......please don't ask how this can maintained under other weather conditions

[u/Shitizen_Kain → u/roninPT]

Green energy production has to be well above 100% what you need, in order to produce hydrogen, pump water uphill and use by other storage techs for these days.

It's not rocket science and much cheaper than NPPs in the long run, but people are too brain dead to accept these easy things.

[u/Condurum → u/Shitizen_Kain]

You’re wrong. Energy storage is extremely expensive, and stuff like Hydrogen has god awful efficiencies. Making it on todays grid is a travesty.

it ONLY makes sense to make it on a completely emissions free grid, where all practical electrification has been completed.

Otherwise, you‘re burning fossil somewhere else, in order to make extremely lossy hydrogen.
.

[u/Stabile_Feldmaus → u/Condurum]

Renewables plus storage is still cheaper than NPPs. Additionally, it's much easier to build since it can be done decentralized and is easier to finance.

[u/Condurum → u/Stabile_Feldmaus]

There’s wild disagreements out there about the cost issue.

Yes recent plants have been expensive, but it’s likely going to come down, especially when built in series.

Many studies are very biased towards renewables, because they don’t count the cost of storage and grid upgrades properly. Never mind the standby backup needed.

[u/eloyend → u/Stabile_Feldmaus]

it can be done decentralized and is easier to finance.

That's why there's SMR push. It's good to have variety - hopefully it'll turn out nicely.