Not wrong. I’ve given a dozen presentations for businesses in Puerto Rico who want to try off-grid.

You need to zoom in. PR has a lot of rain forest. It lowers the hours for much of the island.

Still waiting for that apology.

Batteries charge at something near 95% efficiency (it gets hairy, so if an EE is reading this excuse the incorrect number). It only requires a charge controller to charge the batteries. Solar panels create DC electricity and batteries are charged with DC. You only need to control the voltage to make sure it is optimal…

The problem is that no one, not even Tesla, can make the financial numbers work for their cheap batteries.

I have said this elsewhere.
If Elba and Hiddleston didn’t kill each other, this movie has no right to call itself “Ragnarok”.

I would pay $20 to watch a 1-hour flyt between the two of them in character and then a 1-hour fight scene that ends in death. Get on with it Hollywood!

I think it is important for people to understand that combustion engines are only converting ~20% of the total thermal energy into usable energy.

Good thing there are quite a few revolutionary battery technologies on the horizon like cheap rechargeable alkaline (nearly identical energy density at a fraction of the cost of lithium ion) and true lithium polymer (nearly double the density and none of the explodyness). Sure, they won’t be ready for this…

As an aside, I would love to see the array of SLAs you would link up for this facility. Remember, lead-acid can’t be discharged 90% like a lithium. A discharge depth of 90% gets you a life of 1.5 years.

So, I am just picturing this MASSIVE battery room with hydrogen detectors(SLAs vent hydrogen). They are also a lot…

Solar City gave me a 20 year warranty. Does that mean they expect it to fail in 21-25 years? Maybe.

That video literally demonstrates technology that is 50 years old.

We good? I used terminology from IEEE 1562.
I hope you find that acceptable. I am a little tired today, so I couldn’t connect the dots RIGHT AWAY.

Sorry, I couldn’t remember right away. I am fairly busy. Here is a handy-dandy conversion chart.

Oh wait, I remember why I called it “Sun Hours”

From IEEE 1562:

Anyway, you’re an idiot, try to understand links before you post them as evidence. You’ll save some internet face.

This statement undercuts your whole argument. Is the ROI on solar currently very long? Yes. But you will still get a return on your investment.

LMAO.
Tell me how many PV facilities you have designed/commissioned/installed.

4-5 hours a day?

Better call Las Vegas - it’s totally solar powered. Bunch of hippies eh?

Is it not efficient enough to replace the batteries for hydrogen fuel cells? Instead of using solar power to charge batteries can’t they use it to create hydrogen that gets used to power generators. Surely it’s cheaper to create storage for hydrogen then a humongous battery!... Right?

Layman: whuh?!?