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[-] endlessbeard@lemmy.ml 2 points 9 months ago* (last edited 9 months ago)

Reducing dependence on their aging expensive nuclear power infrastructure has been a campaign promise of every French president for the last decade. Switzerland just voted via referendum to shutter their nuclear fleet, Germany has phased out nukes almost entirely.

The reality of it is: They're expensive. They generate waste which could theoretically be reused or even locked away in underground vaults, but it's frequently just stored on site in reality. And whether the danger is real or perceived, no one wants to live next to a nuke, because if things go wrong, they go very wrong.

Don't get me wrong, I would love to see nukes make a comeback, I think they're a valuable part of the energy mix. I actually know a guy in crypto who is trying to set up financially strained nuclear plants with on-site crypto miners to help them gain back some of that lost revenue from paying people to take power during light load periods. Which I think is a fantastic use case and a great way to make Bitcoin less environmentally destructive. There are other dispatchable loads that could fill the same niche (water desalinization, green hydrogen production).

But the unfortunate reality is that nuclear plants are dying right now, and unless something big changes they're going to be driven out of existence by wind and solar.

[-] endlessbeard@lemmy.ml 1 points 9 months ago

It's not difficult, but it is expensive and inefficient. There are very few financially viable battery technologies on the market currently, and although incremental improvements are happening on that front, there are also roadblocks (lack of raw materials like cobalt, toxic metals, thermal runaway fire risks), we really need a big breakthrough before we'll see large adoption of batteries.

[-] endlessbeard@lemmy.ml -4 points 9 months ago* (last edited 9 months ago)

There are literally countries that went all in on nuclear power (france and switzerland come to mind), that now regret that play and are trying to transition away from them. Not for safety reasons, just because they are extremely expensive to operate and they become a money pit when renewables eat away at the base load that they were built to supply. You have nuclear plants paying people to take their power during the afternoons because they cant shut down quickly when the sun comes out.

[-] endlessbeard@lemmy.ml 19 points 10 months ago

Electrical engineer here. I love extra large batteries in my phones, kept my LG v20 way longer than I would have otherwise just because I didn't want to give up my extended battery. If you're seeing premature battery failure it's likely either poor quality battery cells, which wouldn't be unexpected in cheap offbrand batteries, or you're shortening the batteries lifespan with fast chargers and discharging to 0% frequently.

[-] endlessbeard@lemmy.ml 3 points 10 months ago

Check out the ulephone power armor 18 ultra, has the same shit but runs Android 13 and has 5g. I've had the non-ultra version a few months now and love it, about to trade up.

[-] endlessbeard@lemmy.ml 20 points 10 months ago* (last edited 10 months ago)

I've gotta chime in here with an opposing viewpoint. I got all laser lasik and while it mostly corrected my myopia (went from -5 to -0.5 sph), it gave me really bad astigmatism, to the point where night driving is much more dangerous for me. Glasses were a pain in the ass but at least they made things crystal clear. Post surgery everything except bright sunlight now has an annoying halo. I'm 3 years post surgery btw, and went back under the laser twice to try to get it corrected.

[-] endlessbeard@lemmy.ml 2 points 10 months ago

There's a lot more nuance to this than most people will admit.

Net metering is 100% unsustainable, when renewables become a big enough chunk of the grid generation mix, they often generate when no one needs the power. Forcing the grid to accept that power and even pay the homeowner a premium for it is a perverse incentive. Effectively what it does is allow solar array owners to avoid paying to maintain a grid they still use, and since the rich trend to go solar first, the poor are left holding the bag to maintain the grid for everyone.

[-] endlessbeard@lemmy.ml 2 points 10 months ago

Just pointing out that the grid is paid for by your electric bill, roughly half of what you pay is for delivery (paying to maintain the equipment needed to deliver you that energy), the other half is for supply (paying the power plant that generated the energy). So even if you and all your neighbors are energy independent you'll still be on the hook for at least half your bill, or they'll have to recoup it in taxes or something.

Not saying that's a bad thing, just clarifying a common misconception that going solar should not mean you eliminate your electric bill. In fact many places where solar does offset 100% of your electric bill are ending up with the rich owning solar and the poor paying to maintain the grid for them.

[-] endlessbeard@lemmy.ml 2 points 10 months ago* (last edited 10 months ago)

Yes and no, the progress of solar array technology continues unabated, with multiple areas of research that are beginning to reach commercial applications. Module conversion efficiencies now are in the 20% range, but heterojunction cells, or Gallium Arsenide, or Perovskites, or any number of other possible advancements could easily put efficiencies up into the 30% range.

That being said, the price of the solar modules themselves has already shunk to a small piece of the cost to build a solar array, with the bulk of the costs now being the support structures, wiring, electrical equipment, labor, development, etc. And those costs aren't going to decline, they'd still be there even if the solar panels themselves were free, so they effectively set a floor to the cost reductions we're seeing.

[-] endlessbeard@lemmy.ml 7 points 11 months ago* (last edited 11 months ago)

As others have commented, the open source home assistant project can take voice commands and perform smart home functions like turning lights on and off, reading off the forecast, taking down notes, etc etc. But it does have limits, you will have to script any kind of complex commands, like pulling headlines from an RSS feed, or playing spotify playlists, or really anything that requires fetching info from an API, it won't do those kinds of things out of the box.

The other factor which others have called out is that it doesn't currently handle wake word functionality, though that's been on their road map this year and the Oct update might fix that. That being said, running a dedicated wake word app to fill in that gap is very much possible. See my thread here for more info: https://community.home-assistant.io/t/setting-up-a-100-local-smart-speaker-on-an-android-tablet-using-tasker-and-snowboy-to-handle-wake-word-detection/611435

[-] endlessbeard@lemmy.ml 6 points 11 months ago

Same, including an IR led is such a simple thing, why did this ever go away. Though I'm pretty sure most Chinese phones still have them, Xiaomi phones do for sure

[-] endlessbeard@lemmy.ml 1 points 11 months ago

Hell yes, just jumped on the ulefone train myself!

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submitted 1 year ago* (last edited 1 year ago) by endlessbeard@lemmy.ml to c/homeassistant@lemmy.world

While I eagerly await a built in wake word function, I decided to see what other options are out there and started looking into open source hotword detection projects, and found snowboy. Combining a snowboy plugin with tasker and an android tablet connected all the dots to run local wake word detection that drops seamlessly into the assist service.

The only downside is that recognition for custom phrases is fairly limited (custom wake words are based on only 3 audio samples from the intended speaker), though it seems possible to use them, maybe even to setup different access per speaker, but I haven't gone down that path yet.

Thankfully there is a small selection of "universal" built in wake words including:

Hey/Ok Google

Alexa

Jarvis

Computer

Snowboy

Smart Mirror

and a few other oddball ones that can be found here: https://github.com/Kitt-AI/snowboy/tree/master/resources/models

In short, using any android device (an old phone or tablet), install "Tasker" and "HotwordPlugin" which uses snowboy for the local wake word detection. Assuming you have the assist pipeline setup already and the home assistant app installed, have Tasker call the HA apps assist service whenever HotworkPlugin detects the wake word and triggers the routine. Set it to launch a new assist service with every trigger so it will take consecutive commands.

Depending on how the wake word functionality is implemented in HA eventually this may be just a temporary solution, but it's working well enough for the moment.

Tasker: https://play.google.com/store/apps/details?id=net.dinglisch.android.taskerm (It's a paid app, but well worth it considering what you get for $3.50)

HotwordPlugin: https://play.google.com/store/apps/details?id=nl.jolanrensen.hotwordPlugin (there is an ad supported free version as well)

Snowboy: https://github.com/seasalt-ai/snowboy

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endlessbeard

joined 1 year ago