this post was submitted on 02 Oct 2024
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Microblog Memes

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A place to share screenshots of Microblog posts, whether from Mastodon, tumblr, ~~Twitter~~ X, KBin, Threads or elsewhere.

Created as an evolution of White People Twitter and other tweet-capture subreddits.

RULES:

  1. Your post must be a screen capture of a microblog-type post that includes the UI of the site it came from, preferably also including the avatar and username of the original poster. Including relevant comments made to the original post is encouraged.
  2. Your post, included comments, or your title/comment should include some kind of commentary or remark on the subject of the screen capture. Your title must include at least one word relevant to your post.
  3. You are encouraged to provide a link back to the source of your screen capture in the body of your post.
  4. Current politics and news are allowed, but discouraged. There MUST be some kind of human commentary/reaction included (either by the original poster or you). Just news articles or headlines will be deleted.
  5. Doctored posts/images and AI are allowed, but discouraged. You MUST indicate this in your post (even if you didn't originally know). If a post is found to be fabricated or edited in any way and it is not properly labeled, it will be deleted.
  6. Be nice. Take political debates to the appropriate communities. Take personal disagreements to private messages.
  7. No advertising, brand promotion, or guerrilla marketing.

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[–] puppy@lemmy.world 11 points 1 year ago* (last edited 1 year ago) (2 children)

"Damaging equipment" is just nonsense. I've got an off-grid solar system. When the battery is fully charged the solar panels simply stops producing. It has potential (voltage) but no current until you draw power. Just like a battery is full of energy but it just sits there until you draw power from it.

All solar systems could have smart switches to intelligently disconnect from the grid as needed, some inverter already do this automatically. So it's not a technical problem. It's a political problem.

[–] gaiussabinus@lemmy.world 13 points 1 year ago (1 children)

This can cause degradation of the PN junction on the panel shortening life. The plans I've seen all have a resistive heater some place to dump the excess when full. Smart equipment does help mitigate most issues like moving the resistance point on the panel for lower efficiency when signaled to do so but less is not the same as none.

[–] speeding_slug@feddit.nl 2 points 1 year ago (1 children)

How does it damage the PN junction of the panel is open circuit or barely loaded? It doesn't seem logical that this would damage the panel, but I'm open to being proven wrong.

There are all kinds of follow up questions to ask as well, but I think the main one is how big an effect are we talking?

[–] gaiussabinus@lemmy.world 4 points 1 year ago

Not a huge effect now with smart systems but if you leave solar panel disconnected from everything and out in the sun for weeks at a time you will damage the panel. Open circuit voltage is higher than operating voltage and higher voltage will break down insulation. PN depends on the insulating properties of a doped layer. If I remember correctly electron tunneling causes damage by making the band gap smaller

[–] qjkxbmwvz@startrek.website 3 points 1 year ago

Concentrated solar and wind are a bit different though?