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Good news for 100% clean energy. Geothermal has finally arrived
  • It is highly dependent of the local geological conditions. Convection-based geothermal plants (those with hot spring flowing around) probably have less constraints on heat extraction limit. Conduction-based geothermal plants will face more problems.

    In some shallow geothermal use case the ground is used as seasonal heat storage so heat renewable rate is not an issue.

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    Why do so many people still hate GrapheneOS?
  • It's not a good analogy. A better analogy might be a community that promotes a Linux distro that runs exclusively on Chromebook and claims that that is the ONLY private and secure way to use a computer.

  • The mind-blowing thing we get WRONG about energy - YouTube
  • Some people are still using current primary energy supply share of renewables to bash wind and solar. Given the rapid adoption of these techs, such unfair metric will become more and more irrelevant. Once thermal electricity generation becomes the exception, electricity becomes the main primary energy carrier. Some forms of secondary energy carriers will still exist (in form of green chemical molecules) but overall efficiency of the energy system will no doubt improve.

  • Girls Band Cry - Episode 8 discussion
  • I felt the slap in the face. It is good that Momoka acknowledges Nina is not just a punk token for her nostalgie and will start fight with her for what they think is the right way of doing music.

  • addressing misconceptions about the recent TunnelVision vulnerability
  • Since android are not subject to the risk, I wonder what happens if one connects the computer with hot spot from android.

    Edited: just found out in the original report hot spot was also mentioned as a mitigation technique.

  • Safest way of using WeChat on Android?
  • If you are serious with this relationship (or you expect to still have Chinese partners in the future), I strongly recommend you buy a separate device for all the Chinese spywares required to maintain communication with your partner(s). At some point you will have to enter China, and it is best that you take only this device with you into it then.

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    *Permanently Deleted*
  • Why don't we store it and use it another time? Or we let other type of more meaning electricity demand do the load shifting?

    Of course, if you are doing the computation for some vital services, it make sense to do VRE availability based demand side management as much as possible. But doing computation for some proof of work algorithm is basically computing for the sake of computing more, and I just cannot grasp the rationale behind it.

    And this type of article reinforce the "too much renewable" myth. The problem is conventional power plants are still getting in the way and there is insufficient amount demand response and storage. The problem is not too much wind and solar.

  • Using outlook mail in linux

    Due to work I need to use Microsoft outlook mail on a daily basis. What I would like to know is the privacy and security concerns of various options:

    1. Login and use outlook on a browser for general purposes
    2. Use a tailered third party client from flatpak such as https://flathub.org/en-GB/apps/io.github.mahmoudbahaa.outlook_for_linux
    3. Use thunderbird
    4. Any other possibilities
    19
    Germany's Emissions Dive to a 70-Year Low Amid Decline in Coal Use
  • I remembered vividly when some people predicting soaring high coal electricity generation would occur in Germany for 2023 back in April. Of course, those who had been studying the actual Energiewende for a while knew that would never be the case.

    Interestingly, most of Germany import in 2023 was also from renewables. One could say that German coal has been beatened by growing renewables both at home and abroad.

  • Cooperativism and green energy
  • As for the ownership of wind energy, there were some famous cases of community owned wind projects in Germany and in Denmark, e.g. Wind Park Wiemersdorf and Middelgrunden (I just checked their website and they are still running quite well after more than 2 decades). The continual increase of single unit size has made community ownership less and less possible nowadays in these countries.

    There are still some cases coming out, such as the proposal of a community windpark in Heidelburg and the one in NRW.

    Recently other mechanisms are being proposed. In NRW a "citizen energy law" is being discussed so local residents near windparks might get discount in electricity or direct payments.

  • Cooperativism and green energy
  • What surprised me was how little solar had been in Portugal and Spain. Most renewable growth had been wind. But that has been drastically changing in very recent years. This is a good thing in terms of citizen participation and cooperative ownerships, since solar is the easiest technology for ordinary people to possess and fully control. In terms of tech level, unless compared with diy small hydro or wind turbine, it is also the simplest among all the options for people who are not trying to build everything from scratch.

  • Nuclear energy is more expensive than renewables, CSIRO report finds
  • This is basically common knowledge now. CSIRO report pointed to similar conclusions for several years, at least since 2021 when I started to notice.

    What is relevant to real life (since Australia probably never will get nukes) is that even assignning system costs only onto VRE, they are still almost the same LCoE in a 90% VRE system. This is again consistent with previous reports.

    After Australia pass 100% VRE, exporting green hydrogen in the regional market will probably handle the last remaining flexibility needs. Exporting electricity directly to SE Asia is less likely but still a possibility.

  • Is there any use of an end-of-life LED lightbulb?

    I have a LED lightbulb that starts to flicker. Is there anyway to fix it, or any parts of it that could be useful for other uses(i.e. diodes for use in electrical circuits)?

    Correction: After checking the product serial number carefully it is a fluorescent lightbulb as many pointed out. Thanks for the correction and advice.

    (PS I am renting a house now so the type of lightbulb is of my landlord's choice. Obviously were I to choose I would rather have a LED lightbulb)

    4
    Some thoughts on solar deployment in Gaza

    In the very first days of Israel's most recent war against the Palestinian people, as I saw the news, I realized how many rooftop solar panels there were in Gaza. Not going to lie, it was a surprising and yet simultaneously encouraging scene to see, knowing that these solar infrastructures provide much needed electricity to the local population.

    Unfortunately solar currently only supply 20% of electricity demand in Gaza. Palestinian thinktank cited cost and blockade as the main barriers for a more rapid deployment of solar.

    >Beyond costliness, the Israeli regime has sporadically restricted the entry of materials needed to install solar energy equipment over the past two decades. Moreover, its successive attacks on Gaza have destroyed necessary infrastructure for PV system installation, including residential buildings needed to house a rapidly expanding population, expected to reach 3.1 million in 2030. Combined with diminishing land and roof space, these realities render it extremely challenging for most Palestinians in Gaza to consider adopting PV technology.

    Nevertheless, solar deployment in Gaza is still a remarkable achievement. Around a fifth of Gazans have installed solar power in their homes, which is about the same residential solar uptake percentage in Nederland (the EU state with highest solar installed per capita).

    Similar to the case in Ukraine, the deployment and actual resiliency of renewable energy infrastructures in Gaza provides invaluable lessons for other people around the world, especially those who are or could at any moment be involved in a similar military conflict.

    0
    NREL Explodes Solar Panel Waste Myths

    Original comment paper: Unfounded concerns about photovoltaic module toxicity and waste are slowing decarbonization

    I read the paper. Behind paywall unfortunately, but the Cleantechnica article quote the paper well enough.

    TLDR:

    1. Material waste from solar very small compared with other activities. !
    2. Most common PVs contain almost none harmful materials. Trace amounts of lead in crystalline silicon modules and the cadmium in CdTe modules are the only potential harm IEA found. But Pb is being phased out, and CdTe compound is quite stable in CdTe modules. Both cadmium and tellurium are recycled into new modules.
    3. Module lifetime and reusability is increasing.

    > Treating decommissioned PV modules as a commodity and opportunity for material recovery, and not as hazardous waste would be environmentally and economically beneficial.

    0
    InitialsDiceBearhttps://github.com/dicebear/dicebearhttps://creativecommons.org/publicdomain/zero/1.0/„Initials” (https://github.com/dicebear/dicebear) by „DiceBear”, licensed under „CC0 1.0” (https://creativecommons.org/publicdomain/zero/1.0/)AN
    Antitoxic9087 @slrpnk.net
    Posts 4
    Comments 34