natmaka

58 ms·

661.
by natmaka 4y ago
3/ (recycling) There are massive projects, for example https://northvolt.com/
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by natmaka 4y ago
https://github.com/dalibo/pg_activity ('a top-like application for PostgreSQL server activity monitoring') is quite useful.
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by natmaka 4y ago
> The storage extra costs to get around the variability of wind and solar are substantial. Yes, and we have to consider new ways to tackle this, for example as already stated V2G (using vehicles' batteries, powerwalls...), green hyd
664.
by natmaka 4y ago
> it is stilly to pretend it is not a big deal Let's see what is silly here. I wrote "way less a criteria for production units not consuming any fuel (wind, solar...) (and doesn't produce) waste", let's check th
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by natmaka 4y ago
Minimal measured effects (few studies), the key here is the precautionary principle, applied here by the "London Convention on the Prevention of Marine Pollution by Dumping of Wastes and Other Matter", https://en.wikipe
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by natmaka 4y ago
> If I recall, the paper was based on wind data for 1 year They selected 2011 as representative and detailed it, however the underlying numerical series cover decades (see the 'Ninja' project https://www.renewables.n
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by natmaka 4y ago
> Wind and solar provide only a few percent Indeed, however this is all about heavy industry (producing gridpower), and about recent trends. Hydroelectricity is a way older industry than solar and wind. Photovoltaïcs: from 0MW (2000) to
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by natmaka 4y ago
> were only shut down when the plant reached end-of-life Which one can be described this way? As far as I know all were and are plagued with problems (mainly liquid sodium leaks, which is not fun at all). > fear of nuclear power, lobb
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by natmaka 4y ago
> Northern Europe + Switzerland has way higher confidence in government than France: Indeed, IMHO because France is way too jacobinist (centralization + bureaucracy : https://en.wikipedia.org/wiki/Jacobin_(politics)
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by natmaka 4y ago
>> there are very few and less and less scientists claiming that climate change cannot be observed > Here is an article that is climate sceptic without being completely crazy : https://www.spectator.co.uk/article&#x
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by natmaka 4y ago
https://en.wikipedia.org/wiki/South_Korean_nuclear_scandal
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by natmaka 4y ago
In France the budgeted total cost of building the EPR reactor (at Flamanville) was 3.3 billions €. Work began in 2007 for a 2012 delivery It is not yet completed and the cost is already 19.7 billions €.
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by natmaka 4y ago
https://news.ycombinator.com/item?id=31689996
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by natmaka 4y ago
The main source for the current China's nuclear-building plan is a Bloomberg article ( https://www.bloomberg.com/news/features/2021-11-02/china-cli... ) which states that the boss of Chine General Power
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by natmaka 4y ago
> Nuclear waste can be reprocessed (see Fast Breeder reactors); Doubt so, as after decades of often huge projects in many nations there is not a single industrial fast breeder reactor working satisfactorily. Can you name one? https:&#x2
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by natmaka 4y ago
WP's article about this is quite good, and leads to a terse but to the point "Ocean floor disposal" one: https://en.wikipedia.org/wiki/Ocean_disposal_of_radioactive_...
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by natmaka 4y ago
https://www.cnbc.com/2020/12/09/cement-production-to-use-old... https://www.siemensgamesa.com/es-es/-/media/siemensgamesa/do... https://www.ge.com/news&#x2
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by natmaka 4y ago
Even worse and at the root: there is no properly-working industrial fast breeder reactor. The most advanced is the BN-800 (its little brother the BN-600 often leaks), and it is not adequate, to the point of its potential big brother the BN-
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by natmaka 4y ago
> Norway pulls out of ACER, or renegotiates the agreement > I would be surprised if some "solution" hasn't been found before December. This is indeed highly probable and could boost efforts towards a larger cooperation,
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by natmaka 4y ago
>> For all those accidents there is no consensus about the long-term impact on health and the environment > This is like saying there is no consensus about climate change. No, as there are very few and less and less scientists clai
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by natmaka 4y ago
> Frequency controlling a grid (e.g. increasing or decreasing plant output by a few %s) is important for grid stability first and foremost. Grid costs are less important > redundancy reasons and ease of implementation, this flexibilit
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by natmaka 4y ago
> 30 degrees C is uncomfortable, -20 is another level I really think heated clothing will gain ground. As for air conditioning its typical use is in sync with solar-panel production. > Nuclear > focusing on efficiency during constr
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by natmaka 4y ago
>> France's capacity to build nuclear reactors (in the past and now) > I'm pretty sure GDP per capita is higher today than 50 years ago They do, but money doesn't replace industrial know-how and tools. France massive
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by natmaka 4y ago
> flexibility requirements are within these bounds. That means that power variations required can be serviced while staying within the limits of the system. This is, indeed, central here. It seems to me that, if nuclear can do all necess
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by natmaka 4y ago
> Building standards for new buildings are aleady very strict when it comes to isolation. Yes, however in many nations there is a huge fleet of old not retrofitted buildings. > Most Norwegians don't feel obligated to reduce their
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by natmaka 4y ago
>> Given their financial state I'm quite sure they will be interested in obtaining and selling gridpower. > Ok, so we disagree. My experience is that initiatives like this that depend on the participation of large numbers of i
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by natmaka 4y ago
Whenever load-following is necessary the best way (marginal cost, emissions...) to provide it is preferred, and a nuclear is better, on those account, than a gas turbine. Therefore if a gas turbine takes the load, nuclear could not do so (o
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by natmaka 4y ago
> Because we need the power True (in order to generate electricity demanded during peak consumption), and it doesn't preclude other uses (load-following). Everyone can check (for example at https://www.rte-france.com&#x2F
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by natmaka 4y ago
> it depends on a lot of countries participating. Maybe Greece has other ideas? Given their financial state I'm quite sure they will be interested in obtaining and selling gridpower. Even if they aren't the geographic regions w
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by natmaka 4y ago
> V2G can absolutely make some contribution for very short-term fluctuations (such as for from Nuclear ramp up/down cycles, but the capacity several orders of magnitude too small to compensate for a few weeks of almost no wind in th

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