this post was submitted on 30 Oct 2024
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solarpunk memes

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Numbers from here

Further description:

The theoretical carrying capacity of vessels for different energy sources and clean energy technologies varies enormously (Table 5.2). Of all fossil fuels, oil can be most easily transported, with a single large vessel able to carry roughly 1 700 GWh of energy – equivalent to the yearly oil consumption of roughly 175 000 internal combustion engine (ICE) cars. Among clean energy technologies, roughly 2 GW of solar PV modules could fit in a single container ship – roughly equivalent to Belgium’s solar PV capacity additions in 2023. But solar PV modules are capital goods, while fossil fuels are consumable. That number of modules would be able to generate electricity equivalent to the needs of half a million European households for the duration of the modules’ lifetime – roughly a quarter of a century. On the contrary, an LNG vessel carrying the equivalent amount of energy would satisfy that electricity demand for less than six months

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[–] [email protected] 9 points 4 hours ago (2 children)

What does this even refer to?

One solar panel can provide this much energy over how much time?

I'm a big fan of solar panels, but this one seems like a deb graph

[–] [email protected] 1 points 2 hours ago* (last edited 2 hours ago)

It's "a shipload full of solar panels can provide the same amount of energy over 25 years as the many ships of LNG or coal would when burned"

I included the context quote making this sort-of clear quite intentionally.

[–] [email protected] 2 points 3 hours ago

Probably until the LNG is used up. Or until the Solar panels are broken? Weird not to include the time frame

[–] [email protected] 9 points 15 hours ago (2 children)

This post literally makes no sense. What is the purpose of container ships, are they just using it as a unit of measurement. In that case what is they journey of the ship have to do with anything.

[–] [email protected] 6 points 11 hours ago

I figured it was in response to people using the ships as a gotcha. Pointing out that solar panels are manufactured using power that, itself, isn't green yet, and are shipped using non-green methods. If done in good faith, I'd suspect the were unfamiliar with using one existing process to bootstrap a new one, but it's usually just another way of saying we should maintain the status quo (however bad) until its replacement is absolutely perfect.

[–] [email protected] 6 points 14 hours ago

About 40% of shipping by tonnage today is moving fossil fuels around. If we move to renewables, this pretty much goes away.

[–] [email protected] 11 points 16 hours ago

I burned all my solar panels but I didn’t get anywhere near 50 ships. Instructions unclear please advise.

[–] [email protected] 23 points 23 hours ago (2 children)
[–] [email protected] 13 points 21 hours ago (1 children)

More like a "data is ugly" post

[–] [email protected] 8 points 19 hours ago

not that ugly lol, "data is perfectly functional but uninspired"

[–] [email protected] 6 points 23 hours ago

It is, because this has been public knowledge for years and regulators still havent caught up. So its a sarcastic joke of sorts.

But ye u right, the format doesnt fit.

[–] [email protected] 7 points 19 hours ago* (last edited 14 hours ago)

Also the production capacity of solar wafer producers is far higher energy than global oil reserves.

https://www.tbsnews.net/sites/default/files/styles/infograph/public/images/2024/06/14/chart5_0.jpg

They are also growing faster

oil can be most easily transported, with a single large vessel able to carry roughly 1 700 GWh

The 2gw of solar, installed in an area with just 1200 solar hours per year (optimal areas have 2000 hours), will produce 2400 gwh/year, and 60gwh over lifetime. About 35 oil tankers equivalent.

[–] [email protected] 12 points 23 hours ago (1 children)

I'm confused. Is this a Saddam Hussein meme?

[–] [email protected] 5 points 22 hours ago

Is this loss? 🦋👋🏼

[–] [email protected] 1 points 20 hours ago (1 children)

Are we not installing more panels because they can't produce more or watt?

It feels like a no-brainer for every government except populistic ones, to install massive solar panel parks or similar.

BTW, I wonder what's the cost of those shipments.

[–] [email protected] 4 points 20 hours ago (1 children)

Mostly, because the manufacturing capacity is constrained still. If the factories currently being built actually go into operation, we'll end up with enough solar to meet peoples' needs (though not enough wind turbines)

[–] [email protected] 1 points 20 hours ago (1 children)

Thanks, any idea how long that would take, roughly?

[–] [email protected] 3 points 19 hours ago (2 children)

About two more years I think. I'm expecting there to be enough solar to decarbonize by 2050 if we also ramp up wind turbine manufacturing. The latter part is important because the different intermittency of the two renewables sharply reduces the amount of storage needed.

[–] [email protected] 2 points 19 hours ago

This is great news that everyone should be aware of IMO!

[–] [email protected] 0 points 17 hours ago

I was just thinking this morning about how cloudy / stormy days are often windy, and that combining windmills with solar seems ideal even on the small scale.