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Post by blustnmtn on Apr 23, 2022 13:44:14 GMT
An unfathomable boondoggle in the making! |
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Post by walnut on Apr 23, 2022 13:59:50 GMT
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Post by missouriboy on Apr 23, 2022 14:07:15 GMT
Cavemann Engineering  |
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Post by walnut on Apr 23, 2022 14:17:01 GMT
Cavemann Engineering No evidence on their website that they have ever worked on a single project.
The Tesla batteries are interesting. 'Our design will save you $200 on water over 5 years however you will have to replace a $14,000 Tesla battery at that time.' I guess that they hope that you minimize your own carbon footprint while you are generating that additional $14,000.
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Post by Sigurdur on Apr 23, 2022 14:36:10 GMT
Cavemann Engineering No evidence on their website that they have ever worked on a single project.
The Tesla batteries are interesting. 'Our design will save you $200 on water over 5 years however you will have to replace a $14,000 Tesla battery at that time.' I guess that they hope that you minimize your own carbon footprint while you are generating that additional $14,000.
Will that work in Oklahoma? Sure won't work in ND. |
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Post by walnut on Apr 23, 2022 14:55:35 GMT
No evidence on their website that they have ever worked on a single project.
The Tesla batteries are interesting. 'Our design will save you $200 on water over 5 years however you will have to replace a $14,000 Tesla battery at that time.' I guess that they hope that you minimize your own carbon footprint while you are generating that additional $14,000.
Will that work in Oklahoma? Sure won't work in ND. I don't know, they won't find many takers around here. Many rural people have a well and are not concerned about water usage. Even rural water cooperatives around here have plenty of water available at fairly low cost.
My uncle in Arkansas built an underground house back in the 70's. It was on some pretty land in the mountains. No windows inside and you notice it. No big deal but kinda grim and cave-like as said.
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Post by missouriboy on Apr 23, 2022 14:58:22 GMT
Mid-latitude passive solar will keep the interior above freezing in winter with properly-sized thermal mass storage ... and as long as daytime cloud cover doesn't increase dramatically. Interior heating degree days and purchased supplemental heating is directly dependent on above variables. Looked at several passive solar houses in Flagstaff at 7000 feet when I lived there. And designed one for my south-facing lot ... which I never built. Thermal mass requires lots of dense material, insulation, and passive-flow ducting ... but those who owned same were generally happy with the results. Not as cheap as "stick-built". The modern cave is generally less humid than the original variety.
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Post by walnut on Apr 23, 2022 15:10:02 GMT
Mid-latitude passive solar will keep the interior above freezing in winter with properly-sized thermal mass storage ... and as long as daytime cloud cover doesn't increase dramatically. Interior heating degree days and purchased supplemental heating is directly dependent on above variables. Looked at several passive solar houses in Flagstaff at 7000 feet when I lived there. And designed one for my south-facing lot ... which I never built. Thermal mass requires lots of dense material, insulation, and passive-flow ducting ... but those who owned same were generally happy with the results. Not as cheap as "stick-built". The modern cave is generally less humid than the original variety. My uncle's underground house met expectations and seemed perfectly comfortable inside. They had a developed spring for water. |
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Post by Sigurdur on Apr 23, 2022 15:11:35 GMT
Mid latitude maybe?
Up here, a temperature differential of 100F requires supplemental heat.
Cloudy winter days with short daylight duration won't provide enough solar energy to produce enough watts to run much of any. Our NDAWN system has batteries that are 3x larger than solar models suggest are needed. Even with the 3x larger, some sensors have to be shut off so the station doesn't become useless. There have been times where the 3x larger are depleted and no records of temperature etc recorded.
Guess the solution is to migrate south?
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Post by walnut on Apr 23, 2022 15:20:34 GMT
Mid latitude maybe? Up here, a temperature differential of 100F requires supplemental heat. Cloudy winter days with short daylight duration won't provide enough solar energy to produce enough watts to run much of any. Our NDAWN system has batteries that are 3x larger than solar models suggest are needed. Even with the 3x larger, some sensors have to be shut off so the station doesn't become useless. There have been times where the 3x larger are depleted and no records of temperature etc recorded. Guess the solution is to migrate south? This is what is puzzling me about the state of Michigan eliminating coal for solar. Not enough sunlight at best, 3 months stretch of cloud cover during winter at worst.
I predict that they will default to almost 100% natural gas, the solar part is a boondoggle.
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Post by missouriboy on Apr 23, 2022 18:29:01 GMT
Mid latitude maybe? Up here, a temperature differential of 100F requires supplemental heat. Cloudy winter days with short daylight duration won't provide enough solar energy to produce enough watts to run much of any. Our NDAWN system has batteries that are 3x larger than solar models suggest are needed. Even with the 3x larger, some sensors have to be shut off so the station doesn't become useless. There have been times where the 3x larger are depleted and no records of temperature etc recorded. Guess the solution is to migrate south? Yep! You can see the glaciers from your place.  |
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Post by nonentropic on Apr 23, 2022 20:11:48 GMT
These project are just wet dreams.
Nuclear will clear the ground of them. HVDC has been in use in NZ for 55 years moving 600MW 500Km up the country and under the Cook Strait it costs a lot to keep alive recent upgrade to 1000MW was again to distribute a stupid development output and massively more expensive than the power it substituted.
To be sure if you have Hydro use it we do but any grid built from scratch today should be Nuclear base 50 to 60% and CCGT for peaking and seasonal swing hoping for a capacity factor of 40 to 80%
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Post by missouriboy on Apr 23, 2022 20:22:03 GMT
These project are just wet dreams. Nuclear will clear the ground of them. HVDC has been in use in NZ for 55 years moving 600MW 500Km up the country and under the Cook Strait it costs a lot to keep alive recent upgrade to 1000MW was again to distribute a stupid development output and massively more expensive than the power it substituted. To be sure if you have Hydro use it we do but any grid built from scratch today should be Nuclear base 50 to 60% and CCGT for peaking and seasonal swing hoping for a capacity factor of 40 to 80% Generation Z (1990s-2010s) is going to have to get us back to stability over the longer haul. |
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Post by ratty on Apr 24, 2022 1:11:29 GMT
These project are just wet dreams. Nuclear will clear the ground of them. HVDC has been in use in NZ for 55 years moving 600MW 500Km up the country and under the Cook Strait it costs a lot to keep alive recent upgrade to 1000MW was again to distribute a stupid development output and massively more expensive than the power it substituted. To be sure if you have Hydro use it we do but any grid built from scratch today should be Nuclear base 50 to 60% and CCGT for peaking and seasonal swing hoping for a capacity factor of 40 to 80% Generation Z (1990s-2010s) is going to have to get us back to stability over the longer haul. Not ....  |
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Post by code on Apr 24, 2022 16:50:06 GMT
It’s Not Just High Oil Prices. It’s a Full-Blown Energy Crisis. April 23, 2022 By Helen Thompson Dr. Thompson is a professor of political economy at the University of Cambridge and the author of “Disorder: Hard Times in the 21st Century.” What lies ahead promises to be more disorderly — and ultimately transformative — than the events of the 1970s. This is, indeed, a bigger disruption. www.nytimes.com/2022/04/23/opinion/oil-gas-energy-prices-russia-ukraine.html?smid=url-share |
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