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Unlike the US, Vietnam is a net importer of fuel. It imports over 40 million tons of coal per year:

https://statbase.org/data/vnm-coal-imports/

It also started importing liquid natural gas in 2023.

But it has abundant sunlight, access to low cost Chinese solar panels that will produce electricity for decades instead of being burned once, and a substantial domestic photovoltaic manufacturing industry of its own.

"Renewable Energy Investments in Vietnam in 2024 – Asia’s Next Clean Energy Powerhouse" (June 2024)

https://energytracker.asia/renewable-energy-investments-in-v...

In 2014, the share of renewable energy in Vietnam was just 0.32%. In 2015, only 4 megawatts (MW) of installed solar capacity for power generation was available. However, within five years, investment in solar energy, for example, soared.

As of 2020, Vietnam had over 7.4 gigawatts (GW) of rooftop solar power connected to the national grid. These renewable energy numbers surpassed all expectations. It marked a 25-fold increase in installed capacity compared to 2019’s figures.

In 2021, the data showed that Vietnam now has 16.5 GW of solar power. This was accompanied by its green energy counterpart wind at 11.8 GW. A further 6.6 GW is expected in late 2021 or 2022. Ambitiously, the government plans to further bolster this by adding 12 GW of onshore and offshore wind by 2025.

These growth rates are actually much faster than growth rates in the US.

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Add cheap labor to the equation.

In developed countries 20-50% of the cost of roof top solar is labor.

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> This needs investment also. An investment poorer people cannot or do not want to do.

The general premise of investments is that you end up with fewer resources by not doing them.

It now costs less to install a new solar or wind farm than to continue using an existing coal plant, much less if you were considering building a new coal plant, and that includes the cost of capital, i.e. the interest you have to pay to borrow the money for the up-front investment.

Poorer countries would be at a slight disadvantage if they have to pay higher than average interest rates to borrow money, but they also have the countervailing advantage of having lower labor and real estate costs and the net result is that it still doesn't make sense for anybody to continue to use coal for any longer than it takes to build the replacement.

It just takes more than zero days to replace all existing infrastructure.

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The transition is happening rapidly in Pakistan: https://www.theguardian.com/environment/2026/mar/17/pakistan...
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That's why it will require a functional government who can use taxes responsibly to make the technology affordable to everyone. The US had a pretty good start until one man decided to stop and try to reverse any progress made.
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Not one man, he's financially backed by the wealthiest people in the world and politically supported by millions.

Acting like this blunder is some random stroke of bad luck isn't telling the whole story.

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Trump's animus against wind in particular is definitely specific to the man. He was annoyed by a wind farm in Scotland. Trump of course thinks he's one of those old fashioned kings† (and the US has been annoyingly willing to go along with that, how are those "checks and balances" and your "co-equal branches of government" working out for you?) and so he thought the local government would go along with his whims and prohibit the wind farm but they did not.

I'm sure there's some degree of vested interest in protecting fossil energy because it means very concentrated profits in a way that renewables do not. Sunlight isn't owned by anybody (modulo Simpsons references) and nor is the Wind, but I'd expect that, if that was all it was, to manifest as diverting funding to transitional work, stuff that keeps $$$ in the right men's pockets, rather than trying to do a King Canute. Stuff like paying a wind farm not to be constructed feels very Trump-specific.

† The British even know what you do with kings who refuse to stop breaking the law. See Charles the First, though that's technically the English I suspect in this respect the Scots can follow along. If the King won't follow the Law, kill the King, problem solved.

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Trump’s campaign had financial backing from a number of oil and gas industry investors. Following the money in this case is not very difficult. He’s just a useful idiot, the whole industry put him there and are profiting at the expense of the rest of us.
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But why should American taxpayers be responsible for making the technology affordable for everyone? Why shouldn't Europe or China be expected to shoulder this financial burden?

EDIT: I think people are misunderstanding my response. I fully support local subsidies for solar and renewables. My question is why my tax dollars should go toward making it affordable for everyone, including non-Americans. Either market dynamics will handle that naturally, artificially (i.e., China's manufacturing subsidies), or else it is up to the local government to address the shortfall.

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Isn't the American complaint that China did exactly that by subsidizing its solar industry and flooding the global market with panels cheaper than Americans could make?

[1] https://www.bbc.com/news/business-20247734 (2012)

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Responding to your edit: A wider version of the same argument might apply. The US has (historically) benefited considerably from global stability and this does seem to help with that because if basically everybody has energy independence and the overheating doesn't get much worse they might chill the fuck out?
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China is, it's subsidies have resulted in a glut of cheap solar panel production which the world has benefited from. European counties subsidise their own citizens switch to solar, the US no longer does at the federal level.
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Look at it this way: Benefiting everyone is a side effect of benefiting American taxpayers.

Or do you think that US federal investment in solar and battery technology would be bad for the American taxpayer?

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