marsokod (u/marsokod)

marsokod commented on Solar-plus-storage technology is improving quickly volts.wtf/p/solarstorage-... · Posted by u/mooreds

NalNezumi · a month ago

Where did you get the 110 - 170 figure from?

According to [1] (figure 5, 6) its at the maximum, around 80€ MWh. Am I looking at the wrong stats?

[1] https://ec.europa.eu/eurostat/statistics-explained/index.php...

marsokod · a month ago

Not the parent, but I believe they were talking about LCOE, or total cost including building the plant and operating it. So that will be the cost of natural gas plus the rest amortized.

marsokod commented on Space Debris: Is It a Crisis? esa.int/Space_Safety/Spac... · Posted by u/defrost

asix66 · 5 months ago

Steve Wozniak's startup, Privateer[0], was originally created to clean up space junk, but it seems now their “mission” is to develop better tracking of objects in space, and to use this data to help avert disastrous collisions.

On the site is a fun interactive object tracker.

[0] https://www.privateer.com/

marsokod · 5 months ago

That's the thing we need. If your satellite is operating and in Low Earth Orbit, it is extremely easy to avoid a collision, even without any propulsion system.

If you are aware of the risk of collision a couple of days in advance, just changing your satellite orientation for a couple of orbit will retire the risk of collision.

You may want to perform in-orbit servicing, but that is more about increasing the longevity of your assets in orbit or increasing their capabilities via refueling/upgrading/repairing.

marsokod commented on We're Charging Our Cars Wrong spectrum.ieee.org/ev-char... · Posted by u/jnord

progbits · 6 months ago

> We estimate that the cost of the bill of materials and assembly of a galvanically isolated charging port is about $300 per kilowatt. So a single 300-kW port in a public charging station includes about $90,000 of power electronics, of which about $54,000 is for the isolation link.

I would love to see a concrete BOM for a sample build and mouser links to back this up.

Seems ridiculously high, like paying some military/space grade premiums, or just using very niche parts without economies of scale driving the cost down.

marsokod · 6 months ago

> > So a single 300-kW port in a public charging station includes about $90,000 of power electronics, of which about $54,000 is for the isolation link. > I would love to see a concrete BOM for a sample build and mouser links to back this up.

This kind of checks out with the price of 200kW and 400kW chargers from Alpitronics: https://www.connect-gp-joule.de/en/shop/dc-charging-stations...

Between €67k and €102k (for some reasons VAT included in that price) for these units.

marsokod commented on · Posted by u/marsokod

marsokod · 6 months ago

[...] in our test, the party political content chosen by the recommendation systems on Tik Tok and X was politically biased.

On TikTok, 78% (28/36) of this recommended party political content was supportive of AfD. On X, 64% (14/22) of such recommended party political content was supportive of AfD.

The picture on Instagram was very different. 96% of the content we were shown on Instagram came from one of the eight accounts we followed.

marsokod commented on Show HN: One year of bewCloud (a simpler Nextcloud alternative) bewcloud.com#one-year-lat... · Posted by u/BrunoBernardino

rglullis · 6 months ago

> I want to be able to browse my own files from my phone or any other safe device

How much data do you have? Why not simply replicate this data between your devices?

My "office documents" are ~4.8GB, according to the file browser. I simply just have it on Syncthing and copy everything to phone/laptop/workstation/NAS.

marsokod · 6 months ago

With personal photos, PDFs and everything, that's 3-4TB. With pure documents, that's still around 100-200GB.

The thing is, I don't know what I will need at a given time so I cannot just have a subset synced. Like when some friends I am visiting abroad wanted to have pictures of my house, or of an event we did with our children, now I can browse through them live.

marsokod commented on Show HN: One year of bewCloud (a simpler Nextcloud alternative) bewcloud.com#one-year-lat... · Posted by u/BrunoBernardino

rglullis · 6 months ago

I'm yet to figure out why we keep chasing this notion that everything should be on the cloud.

StarOffice/LibreOffice was open sourced 25 years ago. It is still maintained and developed to this day. It can run on any operating system you need, and it uses the same data formats that any "cloud solution" will use as well.

It can not be a matter of "it doesn't have online multi-writer collaboration tools", because if that was such a killer feature, there would be at least a handful of companies developing plugins to support this - or even developed in the project itself.

It can not be a matter of "data always available online", because you could solve this with a virtual online drive that can be browsed and/or synced with your work computer.

The funny thing to me is that mobile-first people prefer to have an app for each separate task, while PC-first people would rather have everything inside a browser window.

marsokod · 6 months ago

> It can not be a matter of "data always available online", because you could solve this with a virtual online drive that can be browsed and/or synced with your work computer.

That's exactly my reason for using nextcloud and other apps like that though.

I want to be able to browse my own files from my phone or any other safe device, and that's what nextcloud offers. It is literally a "virtual online drive that can be browsed and/or synced" with any device, much like bewcloud.

I personally use nextcloud because I am using its other features as well, and there is no denying it suffers from being a jack of all trades, master of none, but having your data in the cloud, being able to access you admin paperwork, share data with your relatives or even random people, or manage a calendar amongst several people is a fairly frequent use case.

marsokod commented on DOGE has 'god mode' access to government data theatlantic.com/technolog... · Posted by u/perihelions

riffraff · 6 months ago

their claims can't be trusted because they fail at basic accounting and reading. Something something malice incompetence.

https://twitter.com/electricfutures/status/18918983362081056...

> The single biggest ticket item is a DHS contract listed as saving $8 billion. Wow, that's a huge contract! Actually no, it's $8 million. They must have tried to automate scraping the FPDS form and failed.

marsokod · 6 months ago

It is even worse, this $8M contract is alread partially executed, so only $5.5 millions are left.

And it does not say anything about what is being cut by cancelling the contract and whether it is useful or not.

marsokod commented on Satellites Are Becoming the New Cellphone Towers spectrum.ieee.org/satelli... · Posted by u/frasermarlow

system2 · 2 years ago

What can they do if Starlink doesn't obey them? Shoot them down with rockets?

marsokod · 2 years ago

They can make SpaceX life hell through the ITU. Eventually SpaceX can only operate if they get the licences to operate, and if they bypass this, they would show that they have a disregard of RF regulations and this will be used against them the next time they need to get/renew a licence.

marsokod commented on Tesla lowers Model Y, S, X range estimations following exaggeration complaints theverge.com/2024/1/5/240... · Posted by u/belter

idontwantthis · 2 years ago

But why would you need a separate number and test for that? It’s guaranteed to be more than the highway range and for the small percentage of the time that range matters at all 99% of the time that will be on a highway. Do people seriously consider driving >200 miles inside of a city in a single day?

marsokod · 2 years ago

It would be useful for people who do not have a home charger, so that they understand if they can do a whole week with it. It is also useful for taxi drivers (though I would hope they do more than just reading a single number).

It is difficult to find a good solution for this, even providing 3 ranges (city, suburban, highway) has its limits and will confuse people.