> It astounds me that these things do not catch on.
Basements are very common throughout the country. Once you've built a basement, you might as well put a house on the next floor up.
Modern insulation technology is very effective. It's much cheaper to put a lot of insulation in the above-ground portion of a house than to try to build the equivalent area entirely below the grade.
Building entirely below the surface without putting anything on top would be massively expensive compared to the same square footage in a traditional home, even if you accounted for equivalent insulation and cooling costs. It's not even close.
I lived in Fresno for 15 years. I spent north of $400 bucks a month on AC in the summertime (starts in June and goes till early November). I lived in a new home with modern insulation.
I now live in NY and I have a basement. It's generally about 10 degrees cooler. I would have loved that in Fresno.
Electricity in California is the most expensive in the country. When I lived there I spent between 20-35c/kWh. I moved to Utah and now pay approx 9c/kWh, cheaper by a factor of about 3. I live in the Southwest part of the state where the temperatures regularly hit 46c and my electric bill comes out to about $100.
typical wholesale prices are 2½¢ per kilowatt hour
solar panels are 8¢/peak watt https://www.solarserver.de/photovoltaik-preis-pv-modul-preis... which works out to 40¢ per average watt assuming a 20% capacity factor. at 7% yearly interest, that's 2.8 cents per watt, and since a year has 8.766 kilohours, it's 0.3¢ per kilowatt hour. for ac inverter systems, balance of system costs typically triple this, and in the us, import tariffs double it again to 1.8¢ per kilowatt hour
the future is already here; it just isn't widely distributed. and that's why you're getting scammed
I mean I can get solar on my roof for about $4000Aud and then I pay nothing unless it's particularly cloudy.
But for grid electricity even if the generation is dirt cheap the power company in WA is responsible for covering an area the size of a chunk of Europe with a total population of under 3million.
There are significant distribution costs involved and I suspect even at the prices we pay its subsidised by the government.
$4000 is also pretty expensive; at my 7% yearly interest that's $23 a month. at my number of 0.9¢ per kilowatt hour that's 2600 kilowatt hours per month, an average of 3600 watts. i will be very surprised if you are using 3600 watts round-the-clock average unless you have a machine shop in your garage
so i think you are dramatically overestimating the cost of rooftop solar
Basements are very common throughout the country. Once you've built a basement, you might as well put a house on the next floor up.
Modern insulation technology is very effective. It's much cheaper to put a lot of insulation in the above-ground portion of a house than to try to build the equivalent area entirely below the grade.
Building entirely below the surface without putting anything on top would be massively expensive compared to the same square footage in a traditional home, even if you accounted for equivalent insulation and cooling costs. It's not even close.