2,680 karma · joined June 30, 2022
I'm very shocked to see that China's utility scale solar project is $600 per kwp. I almost want to say something must be wrong with that number. It's higher than retail rooftop PV costs which is $450 per kwp.
The other factor is seasonal variability, which is a harder problem to solve than low irradiance. Low irradiance can be solved by installing more panels, which will automatically be solved with future price declines.
You are correct though that a naive prediction of constant doublings is definitely wrong. China is showing signs of slowing over the last month due to transmission and storage bottlenecks in a few locations. BNEF has an article about this.
Human children socialized just fine in the 100k years that we didn't have schools. The purpose of schools is to bring economies of scale to education. That's great, but if we can figure out a way to deliver education at scale without schools and all the negative side effects of schools, that'd be even better.
Here's an alternative explanation that fits the same facts. Sam tweeted "her", not due to the voice, but due the existence of a conversational system that resembled the system in the movie. This primed people to hear Scarlett Johansson's voice in a generically cheerful female voice actor who was contracted over half a year ago. Scarlett's lawyers encourage her to write a public letter, helping Scarlett with the wording, in order to steer the public narrative, in order to place pressure on OpenAI to settle with her financially out of court.
If you live in a reasonably sunny country, the shorthand you can use is 4.5*(system size in KW), which equals the daily number of kWh your system will produce. Say that number is 30kWh. Then multiply 30 by your per kWh electricity costs. Say $0.2*30. That's your daily savings estimate, $6. Then you can figure out how many years to ROI by comparing it to the system cost. This approach will be more or less accurate if you have a battery or a nice net metering arrangement. It will be less accurate without either of these things.
"What was new was that the stories had been taken from legitimate news outlets and modified using large language models, most likely one built by Openai"
Huh? What is the evidence for this claim? I assumed they used an open weights model to avoid a distracting adversarial cat and mouse game against OpenAI.If you have a $40k EV expiring two years ahead of schedule, the added depreciation cost should be in the thousands. Remember that battery lifespan isn't measured only in years, it's primarily measured in cycles.
Dedicated LPO home batteries can be gotten for only $110 USD per kWh if you live in a place with no tarrifs or taxes on it. This makes a lot more sense to me.
The only way I can see it making sense to use EVs for this, is if the battery getting old is rarely the main reason for throwing away old EVs. If that is true, then sure, use EVs as a home battery, since you're not getting a massive depreciation cost from doing so. But is it true?
It gets expensive if you insist on a hybrid inverter and battery. But even then, you can get full ROI in less than five years in some locations. ROI is highly dependent on local labor costs, tariffs, grid electricity costs, local solar irradiance, and net metering arrangements.
> There are many other variables like power sources (nuclear power for example)
The problem is that there aren't. You might be a wind NIMBY and nuclear YIMBY, but guess what, there's millions of nuclear NIMBYs ready to oppose whatever vision you personally hold.The end result is permanent gridlock all in the name of preserving the subjective aesthetic preferences of a tiny handful of people. You can't run a society like this, you just can't.
At some point the urgent global concerns need to override sufficiently frivolous local concerns.