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hunter

(40,297 posts)
30. About a third of my neighbors have large solar systems.
Mon Dec 1, 2025, 04:44 PM
Dec 1

The big box stores have solar on their rooftops. The schools have parking lot solar, so does the hospital and a neighborhood supermarket. Our neighborhood probably exports power when the sun is shining brightly.

At night everyone who doesn't have batteries, including myself, relies on natural gas power plants to keep the lights on.

You can watch the system in operation here:

https://www.caiso.com/todays-outlook/supply

or, if you like the comparative global perspective, here:

https://app.electricitymaps.com/map/zone/US-CAL-CISO/live/fifteen_minutes

Here in California 39% of our electricity comes from renewables (including big hydro), 10% from nuclear, and the rest is fossil fuels, mostly natural gas.

California also has some of the most expensive electricity in the developed world, which tends to be the case in all places with aggressive renewable energy programs. Sunlight may be free, but capturing that power, storing it, and converting it to AC current is expensive. The limitations of these solar power systems are the same at any scale.

Solar and wind power are incapable of displacing fossil fuels entirely, which is something we need to do. The only energy resource capable of displacing fossil fuels entirely, capable of supporting all eight billion of us, is nuclear power.

I'm a bit blasé about power failures so long as the water keeps running. I can live without washing machines, dryers, televisions, dishwashers and refrigerators. When I was a kid this wasn't unusual, the longest stretch was for about eight months when we lived in Europe, and whenever we were visiting my great grandmother or camping for the summer.

At my worst, as a young adult, I was either homeless, couch surfing, or living in the garden shed of a Vietnam war vet. That's probably the smallest environmental footprint I've ever had.

If I was living alone I probably wouldn't have a refrigerator but I'm married and my wife wouldn't put up with that. Nevertheless, if the power was out long enough that we had to compost all the food in our refrigerator it wouldn't be a huge economic hit. My wife is a vegetarian and I'm mostly vegetarian so there's rarely any meat in there, let alone expensive meat.

Nobody likes doing business with PG&E but that's a different matter. Things went very wrong when they decided they owed more to their shareholders and upper management than they did their customers.

Recommendations

1 members have recommended this reply (displayed in chronological order):

(Sigh) Our homeowners association would freak out if anyone dared to put one/some of these on their unit progree Nov 30 #1
I doubt that Hitler had lesser power than HOAs do FredGarvin Nov 30 #5
I was exaggerating (sigh) /nt progree Nov 30 #6
HOAs do have a remarkable level of power. yardwork Dec 1 #31
This is a great idea but there might be/is a problem... SnoopDog Nov 30 #2
Transfer switch is required and disconnecting the home from the electrical utility FredGarvin Nov 30 #4
But that implies the homeowner would switch it off... SnoopDog Nov 30 #7
Agreed. I don't see it being enough power mdbl Nov 30 #8
Solar Panels produce DC current... SnoopDog Nov 30 #10
You're confusing kilowatt-hours with kilowatts groundloop Nov 30 #12
I actually do know the difference... SnoopDog Nov 30 #13
We have rooftop solar DBoon Dec 1 #26
The inverters on these things are "smart," they've got microprocessors in them. hunter Nov 30 #16
The 'solar or wind projects disconnect simultaneously, and the entire grid crashes' part... SnoopDog Nov 30 #18
It has happened before and it will again. hunter Nov 30 #20
Very interesting... SnoopDog Dec 1 #24
About a third of my neighbors have large solar systems. hunter Dec 1 #30
In Germany the power from the panels is Old Crank Dec 1 #22
Good Idea for dozens of years FredGarvin Nov 30 #3
My washing machine just used .30 kwh SnoopDog Dec 1 #32
What will we do with... littlemissmartypants Nov 30 #9
You mean like all the other junk that is produced in the world? SnoopDog Nov 30 #11
Have you looked at the statistics on recycling lately? littlemissmartypants Nov 30 #14
Panels should be good for 25, Inverters for 15. Old Crank Dec 1 #28
What if you had a place in the Country, that wasn't connected to the power grid? This would work tremendously well, SWBTATTReg Nov 30 #15
Then you need batteries. Those are expensive. hunter Nov 30 #17
I've been playing with these kinds of systems for a couple of years now. hunter Nov 30 #19
The question to ask ... Grins Nov 30 #21
Munich here. Old Crank Dec 1 #23
Question for you... SnoopDog Dec 1 #25
Power output can be all over the map Old Crank Dec 1 #27
Thom Hartman mentioned the balcony solar today on his program... SnoopDog Dec 1 #29
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