At it's lowest point? That's great for pumping costs. For the 8B gal/day they're talking about, each 1000 ft requires 1GW of electrical power (even assuming 100% efficiency). They're talking about wind power for that, which is a good idea. Suppose though they sold the electrical power instead of the water. The biggest problem with wind power is that it can be intermittent, but the best way to deal with that is to combine wind and hydro, which they've got plenty of. Why throw more water at CA's incredibly wasteful AgBiz, when you can generate something useful instead?
Houses in the USA don't have their own water tanks insulating the house plumbing from the mains pressure?
Where are you from that requires that?
In any part of the US I've seen, the pressure from the municipal supply into a building is well enough regulated to use "as is". I believe they use pressure reducer valves in the mains to account for different elevations, and possibly so that the mains can be run at higher pressure than the supply to a building. The exception is tall buildings (above 4-5 stories IIRC), where there isn't sufficient mains pressure to reach higher floors. They have to have a pump and a water tank (typically on the roof).
decided that 3" fish are more important than people
Which "people" are those, corporate farmers that are so uncompetitive that they can't survive without massive subsidies? The ones that grow rice in semi-arid areas? The ones that can't bear the cost of efficient irrigation techniques? Cry me a river (bad joke intended).
one idea is a aqueduct/canal/pipeline from the Columbia River which has a discharge rate FAR beyond all the other California aqueducts combined
What makes you think people in the Northwest are stupid? They'll never allow that, nor should they. If you like fresh water, move to someplace that has it.
think about this the next time you buy fresh salad greens in January
Or the next time I get rice grown in the Sacramento valley - the perfect crop for a near desert.
BTW, were you under the impression that CA and the Southwest are the only places that are warm in the winter and within easy reach of CONUS? Please check your map. The whole thing, including so-called "water rights", is a big subsidy to farmers, who also yell for cheaper labor because, bottom line, they wouldn't be competitive without these subsidies. Want to ship all our industry to China? No problem - just save us from foreign lettuce!
That is where the real danger lies: stacks: the joint ownership of or collusion between content providers and transport providers.
Agreed. It's also not a new problem. Back in the 1940's there was a problem with movie studios owning theater chains, which of course only showed, or at least gave preference to, that studio's movies. Of course back then antitrust law was actually enforced (United States v. Paramount Pictures, Inc.), which allowed for real competition. Nowadays corporate rent seeking is called the free market. While we're at it, war is peace, freedom is slavery, and ignorance is strength.
I suspect it's mostly synchronization issues. Trying to get two independent motors turning at exactly the same speed is likely a major challenge
So how do they do it w/ diesel-electric locomotives? They may have only one motor per axle (not sure), but they have many driven axles. It's the only way for them to get enough traction.
40% of Americans can't differentiate astrology from astronomy.
Worse, 40% of Americans don't have the critical thinking skills to understand why that can't be inferred from the data. Confusing two very similar words isn't the same as not understanding the difference between the two areas. Worst of all is the 40% of Americans base their false sense of superiority on knowing some terminology, rather than a substantive understanding.
Depends on the time frame. Astropsychics claim to be able to make predictions about years in the future. Astrophysicists claim to be able to do that for billions of years in the future.
HVDC cost is a function of line length. If it was always higher why would anyone use HVDC? The converters are expensive, but the actual cables are cheaper. The electrical losses are also lower for long distances, so that saves money too. Breakeven point for cables on land is about 500-600km, and this is an 800km link. The article doesn't say one way or another, but it'd be surprising if they weren't planning on using HVDC anyway. The cost of underground and overhead HVDC lines is about the same. It's actually surprising that the overhead isn't more expensive, considering the cost of building the towers.
Use an underground cable. They build underwater HVDC lines all the time, so you can build underground lines. One of the nice things about HVDC is that the capacitance between conductors doesn't cause losses, so you can put the conductors close to each other as long as you have sufficient insulation.
IIRC in the past the problem w/ buried HVDC lines is that the cables were so thick, and couldn't be bent too much, so you needed cable reels so big that they could only fit on a ship. I believe that problem has been solved, and you can now use cable reels that will fit on a truck.
Eggs is a good example. They where 'bad' becasue they had high cholesterol.
That was even worse than bad statistics. There were no statistics because there was no data. Once it was figured out that high cholesterol levels were bad, somebody just assumed that the cholesterol content of the foods you ate had a significant on your cholesterol levels. They don't. A bad guess became gospel for years So much for scientific medicine.
Slashdot Mirror
You tap at shortly before it enters the sea
At it's lowest point? That's great for pumping costs. For the 8B gal/day they're talking about, each 1000 ft requires 1GW of electrical power (even assuming 100% efficiency). They're talking about wind power for that, which is a good idea. Suppose though they sold the electrical power instead of the water. The biggest problem with wind power is that it can be intermittent, but the best way to deal with that is to combine wind and hydro, which they've got plenty of. Why throw more water at CA's incredibly wasteful AgBiz, when you can generate something useful instead?
Who is going to pay for this?
The federal government of course. Can't have a state paying the cost of its own water supply, now can we.
Houses in the USA don't have their own water tanks insulating the house plumbing from the mains pressure?
Where are you from that requires that?
In any part of the US I've seen, the pressure from the municipal supply into a building is well enough regulated to use "as is". I believe they use pressure reducer valves in the mains to account for different elevations, and possibly so that the mains can be run at higher pressure than the supply to a building. The exception is tall buildings (above 4-5 stories IIRC), where there isn't sufficient mains pressure to reach higher floors. They have to have a pump and a water tank (typically on the roof).
decided that 3" fish are more important than people
Which "people" are those, corporate farmers that are so uncompetitive that they can't survive without massive subsidies? The ones that grow rice in semi-arid areas? The ones that can't bear the cost of efficient irrigation techniques? Cry me a river (bad joke intended).
one idea is a aqueduct/canal/pipeline from the Columbia River which has a discharge rate FAR beyond
all the other California aqueducts combined
What makes you think people in the Northwest are stupid? They'll never allow that, nor should they. If you like fresh water, move to someplace that has it.
think about this the next time you buy fresh salad greens in January
Or the next time I get rice grown in the Sacramento valley - the perfect crop for a near desert.
BTW, were you under the impression that CA and the Southwest are the only places that are warm in the winter and within easy reach of CONUS? Please check your map. The whole thing, including so-called "water rights", is a big subsidy to farmers, who also yell for cheaper labor because, bottom line, they wouldn't be competitive without these subsidies. Want to ship all our industry to China? No problem - just save us from foreign lettuce!
If you have good land, but it lacks water, then you find a way to add water, and then you can grow food there.
Like rice in the Sacramento Valley? Yeah, that makes sense in a semi-arid area.
London South Bank University, you may think you're drinking an ice cold brew
The British don't drink their beer ice cold.
That is where the real danger lies: stacks: the joint ownership of or collusion between content providers and transport providers.
Agreed. It's also not a new problem. Back in the 1940's there was a problem with movie studios owning theater chains, which of course only showed, or at least gave preference to, that studio's movies. Of course back then antitrust law was actually enforced (United States v. Paramount Pictures, Inc.), which allowed for real competition. Nowadays corporate rent seeking is called the free market. While we're at it, war is peace, freedom is slavery, and ignorance is strength.
the number one weight in a car is the wiring for all the electric stuff.
You mean the wiring weighs more than the engine? I doubt that.
I suspect it's mostly synchronization issues. Trying to get two independent motors turning at exactly the same speed is likely a major challenge
So how do they do it w/ diesel-electric locomotives? They may have only one motor per axle (not sure), but they have many driven axles. It's the only way for them to get enough traction.
40% of Americans can't differentiate astrology from astronomy.
Worse, 40% of Americans don't have the critical thinking skills to understand why that can't be inferred from the data. Confusing two very similar words isn't the same as not understanding the difference between the two areas. Worst of all is the 40% of Americans base their false sense of superiority on knowing some terminology, rather than a substantive understanding.
If they think Toronto or Vancouver are the capital of Canada
Why should they care about trivialities like the capital of Canada? Ottawa is no more a city than Canada is a country.
If you're from Texas, that's a belief. If you're not from Texas, it's a wish.
Depends on the time frame. Astropsychics claim to be able to make predictions about years in the future. Astrophysicists claim to be able to do that for billions of years in the future.
Texas? Who cares how foreigners spell American.
Legacy lines are mostly overhead, so we're talking massive outlays of money to rebuild a new grid.
We're talking about the construction of an entirely new line, not rebuilding an old legacy one.
Also, are you talking about underground distribution in general, or HVDC in particular? They're different issues.
Do you have an estimate of the cost for these two approaches? I don't, and unless you do, how can you decide which is cheaper?
HVDC cost is a function of line length. If it was always higher why would anyone use HVDC? The converters are expensive, but the actual cables are cheaper. The electrical losses are also lower for long distances, so that saves money too. Breakeven point for cables on land is about 500-600km, and this is an 800km link. The article doesn't say one way or another, but it'd be surprising if they weren't planning on using HVDC anyway. The cost of underground and overhead HVDC lines is about the same. It's actually surprising that the overhead isn't more expensive, considering the cost of building the towers.
Use an underground cable. They build underwater HVDC lines all the time, so you can build underground lines. One of the nice things about HVDC is that the capacitance between conductors doesn't cause losses, so you can put the conductors close to each other as long as you have sufficient insulation.
IIRC in the past the problem w/ buried HVDC lines is that the cables were so thick, and couldn't be bent too much, so you needed cable reels so big that they could only fit on a ship. I believe that problem has been solved, and you can now use cable reels that will fit on a truck.
Here in Eastern Massachusetts, we do get hit by hurricanes as well. And admittedly, they're hardly the strength that hits Florida or the Outer Banks
Not lately, but 1638 was a doozy.
your forefathers who blazed the trails to the west and through the mountains must be spinning like tops in their graves
I've always admired the way our forefathers dealt with this sort of thing - like the Donner party.
Eggs is a good example. They where 'bad' becasue they had high cholesterol.
That was even worse than bad statistics. There were no statistics because there was no data. Once it was figured out that high cholesterol levels were bad, somebody just assumed that the cholesterol content of the foods you ate had a significant on your cholesterol levels. They don't. A bad guess became gospel for years So much for scientific medicine.
If take the Bible literally, you have to accept an enormous amount of logical contradictions and cognitive dissonance.
So? I deal with that before I've finished my first cup of coffee.
What are the rules for pointing a laser pointer at a drone? A drone operating before 500'? 50'?
Parts of Colorado permit the use of firearms, but they should update it to include more modern weapons too.