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FSD or Solar

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a. Definitely Solar.

b. Then Powerwall. The House runs off the solar in the morning (also charging the battery), House runs off batteries while at shoulder/peak rate, selling all solar back to the grid). Car charges from super-off peak at night, which is more than offset by selling peak rate to the grid. Result = $0 electric bill, for house and car.

c. FSD. Helps out on the commute, paid for by a+b energy savings.
 
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Solar!

It will help you with your Tesla nearly every day.

A battery or two are great upgrades. I have a gas backup generator and I’m waiting for better integration tech between batteries and gas generators.

Note you can subscribe to FSD when you want to try it for a vacation or long driving trip.
 
I'm torn between getting FSD or putting the money towards converting our house to solar. I can get it on the previous $10k price, but I'm only 50% confident that FSD will work with the current sensor suite for our incoming Model Y.

I feel like the $10k would be better put into getting solar panels for our house.
In IL you get 25% from coal and 11% from gas. Nearly 50% from nuclear.

What is your house's provider's source ? If its mostly fossil sources, I'd say go with solar. If you get a lot from nuclear and you charge at night, you are mostly getting nuclear.

 
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