humanspiral
@humanspiral@lemmy.ca
- Comment on Solar modules now selling for less than €0.06/W in Europe 2 days ago:
I don’t know that processing silicon is a polluting activity. There is heat involved, and some Chinese producers are 100% solar powered for their processing. Though I’m sure bulldozers or shipps/trucks are involved in obtaining sand.
I’m not a fan of any appeals to gatekeep energy use to “just essentials” instead permitting growth that people want, and cleaning up the energy use involved.
- Comment on Solar modules now selling for less than €0.06/W in Europe 3 days ago:
The difference is that the electrolysis can be done at producer convenience. Sometimes wholesale electricity prices (midday due to high solar penetration) are negative or ultra cheap. Transporting H2, even by truck, can be cheaper than the US typical 8c/kwh electric transmission charge. For many areas, enough solar in winter has 3x more summer production and essentially unusable. A balance of solar and H2 produced in summer, can provide the cheapest necessary energy for winter. An alternative is summer exports with winter imports.
Batteries alone are also subject to curtailment, or not enough charging in winter. H2 can be stored at $1/kwh, where a pipeline is free transmission of withdrawals different from deposit locations. The energy efficiency round trip is less important than the $ efficiency of energy delivery.
- Comment on Solar modules now selling for less than €0.06/W in Europe 3 days ago:
The expense part gets taken care of with OP’s solar prices. Battery costs help too.
- Comment on Solar modules now selling for less than €0.06/W in Europe 3 days ago:
HVDC is much more expensive than Hydrogen pipelines, which doubles as storage and transmission, and can provide continent wide resilience, even when local renewables provide much cheaper power when it is available than either long distance electric or H2 power.
- Comment on Solar modules now selling for less than €0.06/W in Europe 3 days ago:
there is some nuclear tech that can use nuclear waste as at least part of it’s fuel
Those are less competitive, and salt reactor attempts have historically caused terminating corrosion problems. The SMR “promise” relies on switching extremely expensive/rare/dangerous plutonium level enriched fuel, that rely on traditional reactors for enrichment, for slightly lower capital costs.
- Comment on Solar modules now selling for less than €0.06/W in Europe 3 days ago:
And cheaper solar and batteries permits cheaper Hydrogen which provides unlimited and 100% resilient renewable power, and still cheaper than nuclear.
- Comment on Solar modules now selling for less than €0.06/W in Europe 3 days ago:
Batteries can be containerized in modules, with a turnkey connection that remains mobile. Solar can use those containers as support structure. Hydrogen electrolyzer/fuel cells can also be built in same containers.
- Comment on Solar modules now selling for less than €0.06/W in Europe 3 days ago:
Also the budget and timeline is always understated, because otherwise government could withdraw funding if they don’t sink a little more cost into the budget every year.
- Comment on Solar modules now selling for less than €0.06/W in Europe 3 days ago:
It is very poorly implemented. “Builder grade” solar panels in a “smallest compliant” configuration with no concern for architecture to benefit from solar takes place. Builders are intentionally putting the shittiest solar to reduce value of the homes they build so that they can complain about the policy.
- Comment on Solar modules now selling for less than €0.06/W in Europe 3 days ago:
Manufacturing photovoltaics takes a huge pile of chemicals that need to be handled properly to not cause any harm to the environment
Source for this? Cadmium is exclusive to 1 US manufacturer.
- Comment on Solar modules now selling for less than €0.06/W in Europe 3 days ago:
When panels were 30c/watt, projects at $1/watt in EU and US happened. 70c/watt was spent on labour, copper, support structures, and grid connection equipment. All of those can be locally produced, with possible exception of last item.
At 6c/watt, that is over 90% of power projects are local economy boosting instead of 70%. It provides cheaper energy that is useful for industrialization and cost of living benefits too. US tariffs on solar are entirely about protecting oil/gas extortion power instead of a $10B solar production industry that needs fairly expensive support.
Solar imports does not cause energy dependence. You have power for 30+ years with no reliance on continuous fuel supplies. Shoes and apparel is a $450B industry in US. You need new supplies every year, and it makes much more sense to secure supply in that industry for war on the world purposes.
- Comment on We're not going to terraform Mars, but we're doing a good job of venusforming Earth. 4 days ago:
The feminism-oil complex
- Comment on Cat Calibration 5 days ago:
Sail
- Comment on Support animal rule 5 days ago:
Is your sea bass ill tempered?
- Comment on If aliens do come it may be only cause they want us on thier side of some bigger war. 5 days ago:
Building interstellar spacecraft requires advanced automation. Nuclear energy has obvious weapons uses. If there is higher density energy than nuclear, to power spacecraft, then it too can be weaponized.
If they’d need our help, it could only be fighter jets, and they’d need a capacity to hover in the enemy atmosphere, with a space ship large enough to act as an air strip. You can’t drop tanks in the middle of nowhere without fuel and other logistics.
- Comment on Caption this. 1 week ago:
All red dildoes belong to SKYNET
- Comment on Jewel Beetles 1 week ago:
This sub has quality posts! That is all.
- Comment on In 4 years, US power grid increased battery storage to the equivalent of 20 nuclear reactors | The Optimist Daily 2 weeks ago:
Storage does have 2 relevant metrics. how fast it can charge/discharge in GW, and the amount of energy available in gwh. Batteries typically have both these amounts equal. While other storage technologies usually can discharge a large amount of gwh at a slow rate. The discharge rate is often limited to the line capacity available as well.
- Comment on Solar module manufacturing capacity could exceed 1.5 TW by 2035, says IEA 2 weeks ago:
Absurdly low given 2023 had 1.15tw capacity.
The report forecasts that global demand for solar modules will grow from 460 GW in 2023 to 674 GW in 2035
Even more absurdly low. Likely to hit over 600gw this year.
IEA has a history of projecting 3% growth per year every year even as we do 30+% growth.
- Comment on Boston Dynamic show off their brand new Atlas 2 weeks ago:
They missed demoing it working with hockey stick guy harassing it.
I think the skills are pretty cool though.
- Comment on Typing monkey would be unable to produce 'Hamlet' within the lifetime of the universe, study finds 3 weeks ago:
There was a plank computer post here last couple of days. It showed an atomic sized computer performing one crack attempt every 10^-44 seconds would take a 95 character alphabet 100 years to crack a 121 character password.
Monkeys take up 1m^3. 10^105 bigger than a plank length. Typing 120wpm is 10^43 slower. Ignoring punctuation and spaces and capitalization, a 26 character alphabet allows for about 52 more characters than a 95 character alphabet.
Bottom line, monkeys can’t come anywhere close to being able to crack a 100 character password from a 26 character alphabet.
- Comment on Trick OR Treat 3 weeks ago:
XNOR is the opposite so it’s “must have both”
so AND. Always AND.
- Comment on Trick OR Treat 3 weeks ago:
What is xnor and when did that become a thing?
- Comment on What is the argument for making poor/working class folks shoulder the burden of taxes? 3 weeks ago:
They don’t vote as much. They trust the media telling them that oligarchy is bestest for them. Talking point like Harris wants to raise taxes, and Trump wants to lower taxes ignores the context that those raises/lowers are on the rich/oligarchs, and being lower information/invested voters they get deceived.
Well over 95% of the public does not understand the tax code well enough to pay attention to tax proposals, and many poor/simplest tax filings are given to external services. Scamming the public on tax policy, and especially in electoral propaganda/deception, it is very easy to sell stronger oligarchy power over a declining America as if that will improve America if it is shouted loud enough.
- Comment on Coming on Lemmy and complaining because there are too many Linux users is like going in to a brothel and complaining that there are too many hookers 3 weeks ago:
I came hoping the hotties would be free, and to download a car.
- Comment on Colours of Blood 3 weeks ago:
This is yet another trick to make us look at penis worms :P
- Comment on Cheap Solar Panels Are Changing the World | “This is unstoppable.” 3 weeks ago:
For Africa’s quiet solar boom to meet its full potential, governments will need to regulate and subsidize the technology
This was a weird point. US solar is very expensive because utility permission and regulation drawn up by utilities makes it so. tax credit subsidies don’t help much. Success in Africa and Pakistan is mostly based on no one is there to stop people.
- Comment on TSMC suspended shipments to China firm after chip found on Huawei processor, sources say 3 weeks ago:
The US claim on TSMC, are based on it using ASML (Dutch) equipment which has patent licenses from US. I was just answering the puzzling US colonial power roots. There may come a point of challenging the colonial patent power, while still attempting to pay for the patent, or China’s “delete America” program may get more allies or rebellion from the colonies.
China/BRICS is a much bigger market than US, and economics means figuring out a way to earn from all sides is motivated. US promises to isolate itself even more under Trump, and there is a limit to how much it will be respected.
- Comment on TSMC suspended shipments to China firm after chip found on Huawei processor, sources say 3 weeks ago:
US law permits US control over any company in the world that uses US technology.
- Comment on A fair proportion of the suffering in the world can be laid at the feet of binary thinking. 3 weeks ago:
this is not binary solo :P