natmaka

34 ms·

391.
by natmaka 3y ago
> Agriculture is 44% of US land, PV on an area <1% is enough to power America There is even a potential convergence: https://en.wikipedia.org/wiki/Agrivoltaics
392.
by natmaka 3y ago
French: « soldat » (soldier), « solde » (soldier's payment, not used for any other occupation).
393.
by natmaka 3y ago
Very low or even negative prices, during episodes of renewables overproduction (typically when wind blows or sun shines way over demand), are more and more common. https://en.wikipedia.org/wiki/Negative_pricing#Electric
394.
by natmaka 3y ago
Generic way: https://github.com/ebikt/progress.pl
395.
by natmaka 3y ago
> Is subsidization necessary or even done As already answered: https://www.ucsusa.org/resources/nuclear-power-still-not-via...
396.
by natmaka 3y ago
The larger debate is way less clear-cut than your assertion, check https://en.wikipedia.org/wiki/Nuclear_power_debate#Subsidies and https://en.wikipedia.org/wiki/Economics_of_nuclear_power_pla...
397.
by natmaka 3y ago
In France this is false: nuclear always obtained heavily (albeit indirectly) subsidies: the R&D was public, it was built by a public monopoly using public money and money borrowed thanks to the state vouching for it... Financial effect
398.
by natmaka 3y ago
"The costs of the French nuclear scale-up: A case of negative learning by doing" (2010, A. Grubler): https://www.sciencedirect.com/science/article/pii/S030142151...
399.
by natmaka 3y ago
No: they are benefiting from it as they (most of the time) load their batteries when electricity is cheap, and discharge it into the grid when it is rare and therefore expensive. On average the car autonomy already is way above the daily co
400.
by natmaka 3y ago
No, because: - there was no one really in charge of such matters during most of the pertinent decades (first leg of Mao's regime): politics were the sole concern, leading to well-known disasters such as the Great Leap Forward ( https:
401.
by natmaka 3y ago
Such dysfunctions of the Mega-Central-Omniscient-Organization are common to all political regimes, as shown by the Fukushima nuclear disaster: Japan isn't exactly a communist nation, and the Oganawa nuclear plant, closer to the tsunami
402.
by natmaka 3y ago
The architecture I described does not imply that those batteries will be loaded by locally-installed solar panels. There will be a grid, as usual, carrying electricity produced by the described mix, mostly by industrial sites (in many geog
403.
by natmaka 3y ago
The sole point about hydro also is highly debatable: https://news.ycombinator.com/item?id=35521090
404.
by natmaka 3y ago
> How many batteries do we need to store the equivalent energy in 1kg of uranium Energy density isn't, alone, determinant here. The most determinant question is: after taking into account all measures aiming at reducing renewables&#
405.
by natmaka 3y ago
Mean project cost over-runs: Nuclear power 120% Oil and gas 34% Mining 27% Fossil thermal power 16% Wind 13% Energy transmission 8% Solar 1% https://www.enr.com/articles/55774-oxford-professors-latest-...
406.
by natmaka 3y ago
Because from the end of WW2 up to at least the 90s civilian nuclear was supported, often indirectly, by military programs (nuclear weapons). In France the Court of audit could not even assess it.
407.
by natmaka 3y ago
It isn't about "nuclear vs. fossil fuels" but about "nuclear and/or renewables?". The amount of damage/victims linked to nuclear is a matter of debate, and a final count will only be possible after its ver
408.
by natmaka 3y ago
There are many encouraging published studies. Europe: https://www.imperial.ac.uk/news/180592/european-cooperation-... US: https://www.cmu.edu/ceic/assets/docs/publications/publi
409.
by natmaka 3y ago
There is already quite a bit of long-distance industrial low-loss powerlines, some way older than most think: https://en.wikipedia.org/wiki/Category:HVDC_transmission_lin... Recent and pertinent: https://en.
410.
by natmaka 3y ago
Also true for uranium, oil...
411.
by natmaka 3y ago
The real cost is difficult to assess because taxpayers' money is massively used in order to support 'EDF', the local (now de facto) monopoly.
412.
by natmaka 3y ago
For some data there are multiples discordant sources, or critics directed to the unique source. Selecting (and therefore neglecting some) isn't neutral either. A real (non-disputable) consensus is very rare.
413.
by natmaka 3y ago
For a fair part of the population, especially those using at home a crappy PC crashing twice a week, 'smart home stuff' means that some bug or backdoor may lead them into a mess: lock them out, let an intruder in, over/under-
414.
by natmaka 3y ago
Do those nuclear costs include all real decommission costs (check the difference between budgeted and real costs thanks to the UK running case), real complete and sure waste disposal costs, provisions/insurance for accidents... ?
415.
by natmaka 3y ago
> Gen3+ reactors > yet hardly anyone has started building them Some attempts weren't particularly enticing. The EPR is a Gen3+: One just started in Finland, and as a project it is a major failure. Nearly 4 times the budget, 12 ye
416.
by natmaka 3y ago
Sweden: 1/ no new nuclear reactor since 1985, despite hydro being the best existing storage system for nuclear (hydro resources there are fantastic), and hydro remaining there the main source of electricity 2/ wind is very quickly
417.
by natmaka 3y ago
> Nuclear produces more electricity than wind and solar combined It isn't about "nuclear and (wind+solar)" but about "nuclear and renewables": https://news.ycombinator.com/item?id=38301796 > e
418.
by natmaka 3y ago
No, in Europe one of the main importers of this dirtier US gas is... nuclear-hero France! Source: https://www.radiofrance.fr/franceculture/podcasts/open-sourc...
419.
by natmaka 3y ago
The main challenge is peak uranium, as "The amount of uranium present in all currently known conventional reserves alone ((...)) is enough to last over 200 years at current consumption rates." https://en.wikipedia.org&#
420.
by natmaka 3y ago
> The cost of fuel is close to zero. Consequently running a powerplant at full charge or half-charge is exactly the same (It can even be inverted). This is false from an economical/financial point of view: "Another important fa

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