goda90
10 hours ago
This really illustrates how important it is to switch to renewable energy. I know it's not an easy task for impoverished communities to get the startup capital to install solar+batteries, especially one in such a politically tumultuous position, but that really is a path to stability for so many people around the world.
A YouTuber known for talking about dishwashers and Christmas lights recently put out a long rant about how ridiculous it is that humanity still leans so much on single use fuels: https://www.youtube.com/watch?v=KtQ9nt2ZeGM
rented_mule
8 hours ago
A fascinating takeaway from that video for me... If you take the US land that is dedicated to growing corn for ethanol that is put in gasoline, and replace all the corn on that land with solar panels, how much energy would it produce? Twice today's total electrical generation in the US, from all sources. And that's in the corn belt, which is far from ideal for solar. It would be billions of panels, but it's a pretty interesting perspective on the questions about the land use requirements of solar.
pfdietz
8 hours ago
It shows that bioenergy is very land inefficient.
There was a book about renewable energy in Britain about 17 years ago, "Sustainable Energy -- Without the Hot Air" that tried to make the argument that renewables could not power Britain, there wasn't enough land. But if you drilled down, this conclusion was due to use of biofuels.
nozzlegear
5 hours ago
Another genuine question: I wonder how that would change the climate in those areas. I live in Iowa and "corn sweat" is a thing that never fails to make several weeks of summer completely unbearable.
johng
8 hours ago
Genuine question: How much energy, minerals, transportation, manufacturing, etc, etc. goes into making the panels. How much are the panels going to make back percentage wise in it's lifetime vs. the cost to make and transport, install?
Corn kind of reproduces itself every year (If you don't get the GMO kind), so you only need natural resources to continue to grow it right? Water, sunlight and labor?
MrDrMcCoy
8 hours ago
He goes over that in the video. It's long, but very much worth watching.
tfyoung
8 hours ago
> Corn kind of reproduces itself every year (If you don't get the GMO kind), so you only need natural resources to continue to grow it right? Water, sunlight and labor?
At industrial scale, it has a huge petro-chemical fertiliser input.
pfdietz
8 hours ago
Total energy input to agriculture in the US is less than 2% of total energy consumption. So "huge" there has to be taken in context.
All the energy inputs to agriculture could be replaced with non-fossil inputs. Fertilizer in particular needs hydrogen to make ammonia, but that can be produced from non-fossil sources.
cosmic_cheese
10 hours ago
Extensive deployment of renewables and battery storage is perhaps the best thing that can be done anywhere (even in developed countries) for making the grid more robust. Not only is there no fuel supply to be cut off, targets become too diffuse and decentralized to take out quickly, especially if you can manage to cover 30-40% of cities with rooftop solar.
bryanlarsen
9 hours ago
You can hit a solar plant with a missile, and it can be back in operation with a reduced capacity within a week:
https://www.wanhossolars.com/news/ukrainian-solar-power-plan...
pixl97
8 hours ago
Honestly I'm not sure if it would take a week in most cases, just took this long in this case. Its really not worth going after the panels with a conventional missile. Maybe something that explodes well above it and litters it with ball bearings would be far more effective.
toomuchtodo
8 hours ago
If you know it’s coming, you can command the panels on single axis trackers to avoid damage. This is done today for hail and hurricane risk. Panels are also rated to withstand all but the most aggressive hail.
lokar
8 hours ago
I think of him as known for his thoughts on the “color” brown.
lstodd
9 hours ago
> At length I remembered the last resort of a great princess who, when told that the peasants had no bread, replied: "Then let them eat brioches."
buckle8017
9 hours ago
Much of the developing world is close enough to the equator that solar and batteries just have to last a few days.
In most developed countries solar is seasonal.
anonymars
9 hours ago
Solar is one type of renewable. The Nordics have done all right
https://www.nordicstatistics.org/news/the-5-large-nordic-cou...
buckle8017
8 hours ago
They have small populations and so many places to install dams they have their own words for it.
Nobody else can do that.
anonymars
5 hours ago
Yet their neighbor Denmark has similar penetration of renewables.
So what's the final destination of these goalposts then so we can just skip to the end?
pfdietz
8 hours ago
Interestingly you don't want to be near the equator for the best solar resource, due to something called the "Intertropical Convergence Zone". This creates persistent storms and cloudiness in a band that waves up and down across the equator.
https://en.wikipedia.org/wiki/Intertropical_Convergence_Zone
lokar
7 hours ago
Peak efficiency is seasonal. Much of North America is perfectly suited for solar year round, at reduced efficiency.
propagandist
9 hours ago
It also illustrates the importance of not getting caught on the wrong side of the global hegemon right next door who can choke you out and prevent you from importing energy and integrating with the global economy.
A lot of food for thought all around.
mothballed
9 hours ago
That's definitely part of the equation, but the blockade has been over for a long while. They have suffered not only the brutal effect of US colonization/hegemony but also the brutal effect of the legacy of Castro's brand of economics. If they were just suffering one or the other, they'd be significantly better off.
Edit since I am throttled on posts and cannot reply below: The US briefly blockaded Cuba in the 60s, but they have only embargoed them since then. They are not blocked from international trade by the US, except with the US. There is no meaningful block from Cuba engaging in the greater international non-US "global economy" such as EU,Asia, etc.
neves
8 hours ago
You are wrong. Any company that wants to do business with USA must also join the embargo.
mothballed
8 hours ago
This is a bald-faced lie.
For instance, I can buy Malibu rum, no matter that Pernod Ricard does business with Cuba. Or flights in USA with Air France, no matter that they also do business in Havana. Or ZTE phones which are imported into both USA and Cuba from China (carrier limitations but only because USA government won't do business with ZTE associated businesses, not because they can't be sold in USA). Or Sinopec (oil) which does business in USA including a large investment of presence in Texas but also does business with Cuba.
Yes your blanket any is a lot more applicable if you said the truth which is any business that wants to do business with USA federal government which is much closer to the truth (but even then, Sinopec for instance has through its subsidiaries been allowed to bid on strategic oil reserve transactions no matter their ownership is a major trader with Cuba).
Cuba is actively trading with EU, Asian, etc companies that are also trading with USA.
roumenguha
9 hours ago
Do you mean Batista?
user982
9 hours ago
> the blockade has been over for a long while.
What are you talking about?
bryanlarsen
9 hours ago
The embargo was partially lifted in 2015. The article is about the effects of the re-tightening in 2025.
user982
9 hours ago
> The embargo was partially lifted in 2015
And then reinstated in 2017. How has that been "over for a long while"?
nradov
8 hours ago
It also illustrates the importance of not wrecking your own economy through pursuing socialist policies and driving the most productive people out of the country.
lokar
8 hours ago
Is that your summary of the causes, goals and impacts of the Cuban revolution?
nradov
7 hours ago
Causes and goals, no. Impacts, yes. Regardless of intent, socialism inevitably destroys everything it touches.
lokar
7 hours ago
Or, a prolonged embargo, threats of invasion, actual attempts at invasion, diplomatic pressure to isolate, etc all by the most powerful empire in history on your doorstep destroyed everything.
It’s pretty hard to sort out after the fact.
nozzlegear
5 hours ago
That's just a longer way of saying socialism inevitably destroys everything it touches.
ofrzeta
5 hours ago
Is it? It's more like "you can't succeed with any political system if your powerful bullies dislike it". What do you think about Vietnam? Everything destroyed as well?
nozzlegear
4 hours ago
I don't think anything about Vietnam, I was just making a joke.
FpUser
7 hours ago
The way things are going it looks like late capitalism is on a way to eventually catch up. And all 2.5 "productive" people left would own the world and the rest will be cattle, potentially culled to keep things in check
NedF
6 hours ago
[dead]