hef19898

65 ms·

961.
by hef19898 3y ago
Had to dig in my comments, but there you go: https://news.ycombinator.com/item?id=38303819 Self citing: Better not use biased opinion pieces, when there numbers from government sources (US, but eho cares): LCOE (total, incl
962.
by hef19898 3y ago
That sub cals uses fuel cells, because WW2 is over for quite a while and technology advanced. But no, 2,800 km isn't short. Not feasible for commercial ise, sure, but then no submarine technology is commercially feasible. It is too spe
963.
by hef19898 3y ago
I said we mist roll it out at scale, didn't I? The tech is there, and it works, now we have to build it. You know, like Musk did with EVs and charging networks.
964.
by hef19898 3y ago
One thing you didn't include: Opex, a solar farm is pretty low maintenance and requires zero fuel. A NPP is the opposite.
965.
by hef19898 3y ago
Not sure if two weeks and 2,800 km submerged count as short distance: https://en.m.wikipedia.org/wiki/Type_212A_submarine The reason why those systems aren't deployed to civilian surface ships is easy: cost.
966.
by hef19898 3y ago
The important bit is about the timeline: At least ten yeara to proof of concept. There is no industrial base dor this at the moment. And then there is the IRENA commission, tasked with developing a strategy to decarbonize shipping, and they
967.
by hef19898 3y ago
Which we have already. And that wouod be a great solution to the problem of storing electricity / energy. And it could even use, partially, existing gas infrastructure. Green hydrogen absolutey is a thing, bow we just need to deploy it
968.
by hef19898 3y ago
The only nation that has experience with civilian, nuclear powered vessels today is Russia with its fleet of icebreakers. And let's be realistic, military maritime reactor tech will never see use in civilian vessels, same as military j
969.
by hef19898 3y ago
Who said anything about solar being single source??? And everything is expensive, the question is wether or not it is profitable. And politics aside, the financials have decided a long time ago on wind, solar and, sadly enough due to crimin
970.
by hef19898 3y ago
Then go and get funding for it! Because apparently you know better than anyone else who was involved in defining this strategy. And given many, to domain experts, just hairbrained ideas get, or used to get, VC funding, it should be easy, ri
971.
by hef19898 3y ago
Great idea. Now, either apply to YC with it or convince the shipping industry to revise their decarbonisation startegy by going full nuclear with nuclear charging vessels.
972.
by hef19898 3y ago
That's what IRENA worked out in the frame of the initiative to decarbonise ocean shipping by 2050 when it comes to fuel: >> In the short term, advanced biofuels will play a key role in the reduction of CO2 emissions. In the mediu
973.
by hef19898 3y ago
Given that we ship cargo in incredible amounts across all oceans, ranging from liquids, bulk to containers and cars everyday with zero nuclear-powered carho vessels, calling nuclear your only option is odd.
974.
by hef19898 3y ago
The answer to that is simple: powerlines, wind, hydro... No idea why people think solar has to be local, wind requires powerlines and nuclear for some reason isn't neither...
975.
by hef19898 3y ago
Electricity is priced, at least last time I checked the European ones, at generating cost (variable cost excluding fix costs). Guess what forms of electricity generation have basically zero variable costs? Wind and solar. And guess what, th
976.
by hef19898 3y ago
Gas not so much, at least not in Europe. There the ranking (cheap to expensive) is: Solar and wind, coal, oil, nuclear and gas (roughly). Coal is that cheap because CO2 certificates are way underpriced.
977.
by hef19898 3y ago
And still, PV generated electricity during these periods is priced cheaper on the spot market than nuclear. Funny, right? It is almost as if the parties investing billions and making billions selling and buying electricity figured out the f
978.
by hef19898 3y ago
No need to imagine, because it is. At least if you believe electricity market prices reflect reality.
979.
by hef19898 3y ago
France is past tense so, they have one reactor under conszruction and 6 proposed and not even planned...
980.
by hef19898 3y ago
It was, up to the point the only German nuclear powered vessel was a cargo ship. It was tried in the heyday of nuclear power, and didn't go anywhere. So yes, civilian nuclear ships have been tried and found to be expensive, not feasibl
981.
by hef19898 3y ago
So? The industry, shipping, agreed on standards and a plan to reduce CO2 emissions. And if you think nuclear power plants on civilian cargo vessels are a good idea,consider the following: - costs for a single ship reactor (shipping is extr
982.
by hef19898 3y ago
That was tried, nuclear reactors on civilian ships, and found to be a stupid idea. Too expensive and no real benefit over ship engines. By the way, tha vast majority of military ships and boats are not nuclear powered.
983.
by hef19898 3y ago
Money, at that scale at least, is pretty good at calculating business cases. And the money is on renewables, especially solar. And the solar Wp cost for modules is, with some special cause exceptions, following Moores law. Nuclear not so mu
984.
by hef19898 3y ago
Fluoride in water is different so, as the better alternative is adding it to tooth paste.
985.
by hef19898 3y ago
Since he offered treatment packages, that meant a larger customer base?
986.
by hef19898 3y ago
I remember it from my grand-grandparents. It wasn't common-common like in late 19th century Switzerland, but there was at least one case close enough to come across yourself.
987.
by hef19898 3y ago
Masks were a case of bad communication, they absolutely do work. For others around you more than for yourself so. And vaccines worked wonders, everybody who got two, or three, shots allowed anti-vaxxers to not get theirs and not catch a har
988.
by hef19898 3y ago
The article mentions comments from the 19th century about the same subject. I think, that Switzerland, and especially those remote mountain regions, stayed more isolated than similar regions in France or Austria well into the early 20th cen
989.
by hef19898 3y ago
In which regard? And please, please don't say masks...
990.
by hef19898 3y ago
I am affraid some people would take this and turn it into a day of celibration...

More ›