sunshinesnacks

9 ms·

61.
by sunshinesnacks 2y ago
I was going to say the same thing. A poorly maintained chain wears and “stretches,” and in turn wears gears faster. There’s no need to intentionally wear out components for better exercise - just ride a longer route faster, throw rocks in a
62.
by sunshinesnacks 2y ago
Ultrasonic anemometers are generally better than cup anemometers, especially if regular maintenance is not guaranteed. I’m not sure about ran sensors. But moving parts are generally bad for reliability.
63.
by sunshinesnacks 2y ago
The web-based “history” tool’s content and usability has been significantly reduced, as well. You used to be able to view and download a lot of detailed hourly data - now it’s reduced to things like daily summaries when selecting long time
64.
by sunshinesnacks 2y ago
Paul Gipe’s website [1] is always worth checking out when it comes to unusual wind turbine designs. He knows a ton about the history of wind energy, and lots of things have been tried before. And this NREL report [2] is also relevant. It re
65.
by sunshinesnacks 2y ago
CDC estimates 48 million cases of foodborne illness per year in the US [0]. That works out to something like 1 case in 10,000 meals. Maintaining proper temperature of cooked food is part of basic food safety. Right up there with having peop
66.
by sunshinesnacks 2y ago
Sounds risky to me. I’ve never needed a seat belt or bike helmet, but I still use both.
67.
by sunshinesnacks 2y ago
For the coffee maker, maybe being able to set a schedule to brew in the morning. For a water heater, participating in a utility program where they modify your temperature sweeping in exchange for a reduced rate or similar incentive. Those a
68.
by sunshinesnacks 2y ago
Glad you mentioned this. Any conversation about batteries and minerals that mentions cobalt but not LFP is severely lacking.
69.
by sunshinesnacks 3y ago
The Windows clipboard history tool works with images. Screenshots, at least, but I think others as well.
70.
by sunshinesnacks 3y ago
I generally like IEA stuff, but you also have to be careful about using them as a standalone source. The IEA WEO is infamous for its inaccurate solar capacity forecasts over the last 10-15 years. They repeatedly assumed annual solar addit
71.
by sunshinesnacks 3y ago
Just because you imply they might be more polluting when everything is taken into account doesn’t mean they are. I challenge you to find a credible source that shows they are.
72.
by sunshinesnacks 3y ago
That’s fair. But a few things to note: - embedded CO2 in renewable gen is very low compared to fossil fuels - lithium is abundant and cobalt/nickel are not needed in most battery applications (and lithium may be replaced in the future,
73.
by sunshinesnacks 3y ago
Every MWh produced by new wind or solar is one less MWh produced by fossil fuels. CO2 reductions aren’t necessarily 1:1, but are usually very close. So, adding renewable energy is replacing fossil fuels, even if the fossil plants don’t im
74.
by sunshinesnacks 3y ago
On your first two points, I am relate: I had just started getting comfortable with pip and venv, then needed a package that I could only get to work with conda, but then the Anaconda license made me nervous… Finally settled on conda with mi
75.
by sunshinesnacks 3y ago
Just anecdote, but I haven’t had SD card issues in 6-8 years, and my RPi usage has gone up a lot. That includes a setup with very read/write-heavy process that ran for 2+ years without issues. It filled up the SD card every 45 days, an
76.
by sunshinesnacks 3y ago
How many square feet (or meters) are air conditioned? And you mentioned average daily purchases from the grid, but do you know what the maximum is? In the US, I think the "pinch point" for off-grid systems is usually in the winter
77.
by sunshinesnacks 3y ago
I just got setup to use LocalSend, but then saw your comment and was having second thoughts. Comparing the GitHub repos for the two, it seems like LANDrop is pretty stale, while LocalSend is very active. https://github.com/L
78.
by sunshinesnacks 3y ago
That won’t get you all the way through the night, every night. At least not with anything close to typical household energy use in the US. For that you need a properly sized off grid system, which can easily be 20-30 kW of solar and 50-150
79.
by sunshinesnacks 3y ago
You are correct. It’s especially true with a raised frame on the edge of the panels.
80.
by sunshinesnacks 3y ago
> They’d be fine… But before long there will be diabetics that never really learned to do that because they never had to. Even people that have done that for decades still mess up dosing sometimes. How likely is it that someone might die
81.
by sunshinesnacks 3y ago
You can get these direct from USGS in KMZ, GeoTIFF, GeoPDF, and JPEG format. And mobile apps like Topo Reader and Avenza Maps for iOS will let you load them for live referencing. I just “discovered” this yesterday, by chance. https:/&
82.
by sunshinesnacks 3y ago
> they’ll waste the energy trying to transmit it High voltage transmission lines are very efficient. On the order of 1-2% loses per 100 miles for 500 kV carrying 1000 MW [0]. [0] https://web.ecs.baylor.edu/faculty/gr
83.
by sunshinesnacks 3y ago
Oh, I agree. I'm the commenter that pointed out the 150 days to 80% efficiency record. This is a total guess, but 150 days outdoors might translate to a few years of mostly-indoor use. But even then, there is probably need for more QC,
84.
by sunshinesnacks 3y ago
Yeah, consumer electronics. See Exeger Powerfoyle dye-sensitized cells in wireless headphones as an example. They probably aren’t expected to last 30 years, but not being permanently outdoors probably helps a lot either way.
85.
by sunshinesnacks 3y ago
Here are recent results from a large US DOE-funded project related to perovskite reliability: https://pvpact.sandia.gov/results-and-data/ The “record holder” lasted about 150 days outdoors before dropping below 80% of
86.
by sunshinesnacks 3y ago
I’m sorry that a solar project is having such a negative impact near you. But implying that I’m evil and drowning you in irrelevant research isn’t making me think that this exchange is productive.
87.
by sunshinesnacks 3y ago
I don’t have enough karma to downvote. US electricity is about 20% from coal [0], and almost certainly trending downward. I agree that there are wrong locations/applications for most technologies. But I don’t think you can make a robus
88.
by sunshinesnacks 3y ago
In the case of batteries, it obviously matters what you do with them. Put them in an EV and offset a new ICE on the road? Then yes, significant lifecycle CO2 reduction. You are implying that it’s easy to find lots of scientifically rigorous
89.
by sunshinesnacks 3y ago
Good catch on the article. Maybe not peer reviewed, as I don’t know how Nature handles review on “comments”. But there are certainly editors involved, but that’s maybe no different from the editorial you posted. But calling it “blatant mark
90.
by sunshinesnacks 3y ago
No worries. It is getting confusing in here :)

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