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AndrewS

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tphuang said:
okay, I wrote about the usage of BESS and EVs in solving the problem of intermittency in renewable power generation in this substack entry.

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Electricity demand is going to increase everywhere if cars switch from hydrocarbons to being powered by electricity.
It could be 2x today's level in some already developed countries

I thought the benchmark electricity price in China (which is set by Coal) is still at $5/MWh?

Also, BESS costs are really dependent on the upfront installation cost versus the number of times it is cycled.
In comparison, a coal thermal plant has low upfront costs and high ongoing fuel costs.

So if you start using BESS systems as intermittency backups instead of coal, BESS costs will start ballooning worse than for backup coal plants.

---

Also, this article below says hydro is still costs significantly less than BESS? And it's based on 1 cycle per day
It's also listing hydro with a 77% round trip energy efficiency. I recall seeing 70% being quoted in other places previously.

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tphuang

tphuang

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AndrewS said:
Electricity demand is going to increase everywhere if cars switch from hydrocarbons to being powered by electricity.
It could be 2x today's level in some already developed countries

I thought the benchmark electricity price in China (which is set by Coal) is still at $5/MWh?

Also, BESS costs are really dependent on the upfront installation cost versus the number of times it is cycled.
In comparison, a coal thermal plant has low upfront costs and high ongoing fuel costs.

So if you start using BESS systems as intermittency backups instead of coal, BESS costs will start ballooning worse than for backup coal plants.

---

Also, this article below says hydro is still costs significantly less than BESS? And it's based on 1 cycle per day
It's also listing hydro with a 77% round trip energy efficiency. I recall seeing 70% being quoted in other places previously.

Please, Log in or Register to view URLs content!
Click to expand...
I don't know what you are talking about. Did you read what I wrote in there?

the backup thermal plants they have in every city in China is really expensive. You need BESS to replace them.

Solar and wind production is essentially free in China. How can coal electricity price possibly be at $5/MWh when the average industrial electricity price in China is $40/MWh and coal is the main supply for that?
 
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