adrianN

34 ms·

841.
by adrianN 2y ago
A 40 kWh battery stores about as much energy as the bag of coal in your garage for the next barbecue.
842.
by adrianN 2y ago
To harness energy you need a gradient. Once everything will be in equilibrium there is no gradient.
843.
by adrianN 2y ago
You get a micro inverter, connect panels to the battery and the battery to the inverter and plug the inverter in a normal outlet. In Germany this setup is called „Balkonkraftwerk“ and you can buy the whole kit on Amazon.
844.
by adrianN 2y ago
A kW of panels, an inverter and a few kWh of batteries can be had for 1k€ and can satisfy a large part of typical household demand.
845.
by adrianN 2y ago
It depends on what you mean by future. The next couple of years certainly. But once you start looking for technology that can store weeks worth of energy over several months, batteries don’t look like the clear winner.
846.
by adrianN 2y ago
Minimizing 3am pages is good for engineers but it is not necessarily the best investment for the company. Beyond a certain scale it is probably not a good investment to try to get rid of all pages.
847.
by adrianN 2y ago
I wonder how that affects compiler optimization
848.
by adrianN 2y ago
In the near future most cars could be happy to accept a charge
849.
by adrianN 2y ago
I was under the impression that for typical energy mixes in developed nations EVs are strictly better than ICEs and that you have to exclusively charge them for burning lignite to be slightly worse. Only counting climate change impact of co
850.
by adrianN 2y ago
DHL is already using many electric vans.
851.
by adrianN 2y ago
It’s comparable to carbon monoxide, except you can’t smell that one.
852.
by adrianN 2y ago
Some people add yellow lead salts to turmeric to increase profit margins.
853.
by adrianN 2y ago
You can prevent people from committing further violence by keeping them in a secure facility for the remainder of their days.
854.
by adrianN 2y ago
Batteries cost something like $150/kWh and live for a few thousand cycles, so power from batteries costs a couple of cents more than the power used to charge the batteries.
855.
by adrianN 2y ago
No they don't. The energy you get from your battery costs 10x as much as directly from the panels, but you only get a fraction of your energy from storage.
856.
by adrianN 2y ago
I can order 2kWh of LiFePo on Amazon for 500€. Are batteries that much more expensive in the US?
857.
by adrianN 2y ago
If you build enough nuclear capacity to run the country when the renewables don't produce anything you might as well run the country the whole time on nuclear. Building a nuclear plant and then using it at 10% capacity is an egregious
858.
by adrianN 2y ago
Driving has become _a lot_ safer in the recent decades. But the problem is not the technology that we require new cars to have, but the city planning that makes owning a car pretty much mandatory in large parts of the country.
859.
by adrianN 2y ago
Scarcity means that you require more work to mine the same amount of material.
860.
by adrianN 2y ago
When cars where new they didn't go very fast and ICE efficiency was very bad. It just turned out that it's a lot easier to improve ICE power output and tank size than to improve batteries.
861.
by adrianN 2y ago
Energy use in the developed world is actually going down. Electricity use is expected to go up in the next decades.
862.
by adrianN 2y ago
That assumes optimistic scaling behavior between money spent on training and performance. Surely there are diminishing returns.
863.
by adrianN 2y ago
Rich people generally don't keep the majority of their money as cash in a vault. When money lies in the bank, the bank invests it in the real world. Or more directly, when money lies in stocks and bonds, it is invested in the real worl
864.
by adrianN 2y ago
I believe it's optimistic to think that that is the only scenario. Consider the problems we had during the pandemic, which was luckily just a minor blip as far as possible global disruptions go.
865.
by adrianN 2y ago
Wind and solar are the cheapest forms of generating electricity that we currently have and consequently they are growing very quickly.
866.
by adrianN 2y ago
Why? The challenges are quite similar.
867.
Thermoelectric Solar Panel(simplifier.neocities.org)
50 points by adrianN 2y ago|60 comments
868.
by adrianN 2y ago
Isn't Eve Online essentially that.
869.
by adrianN 2y ago
Even if the outcome distribution is the same for everyone and the expected outcome is better healing, you can increase the risk of much worse outcomes if the distribution has the right shape.
870.
by adrianN 2y ago
It would be nice if we started treating security defects like hardware defects

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