116 comments on DrumBeat: May 17, 2009
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116 comments on DrumBeat: May 17, 2009
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The desalination article is quite timely. We just had a post on mineral depletion http://europe.theoildrum.com/node/5374 and a few comments on the possibility of extracting minerals from seawater, including phosphorus. I would suspect that our past efforts at desalination reminds us how expensive a proposition this will remain.
From the article it sounds as if the desalination process is just an ecological concern, yet I thought the energy aspect is still quite important as well?
The Pacific Institute is linked in that NYT story, they have this study on their site: Desalination--W ith a Grain of Salt, A California Perspective. Table on page 55 suggests that desalination costs almost 9 times as much as extraction of groundwater.
Funny thing but the other day I was looking at a 3 year old TOD piece on minerals and the comments were almost entirely off topic. The good ol' days! Ugo's pieces are chock full of relevant info though. Recently someone related the woes of a woman who was trying to solve water problems for some south CA city - Santa Barbara? - and described a real logistics/red tape nightmare. Think she was trying to get them to bankroll a desalinization plant.
Figure 18 on page 55 graphs energy requirement not costs. The cost and energy requirement of groundwater only matters if groundwater exists.
Good point but you entirely miss the point. And that point is; can desalinated water replace groundwater where no groundwater exist, or where groundwater is extremely scarce? At which time we must consider the cost of desalinated water with the cost of groundwater where it does exist.
The answer of course depends on what you are using it for. If you are using it for industrial or household use, then it can. But if you are using it to irrigate farms then it is obviously way too expensive.
Ron P.
The federal government spends $2.00 to make a cubic meter of water that they sell to a farmer for a nickel. Why would that change?
Excellent! It is a very good thing that water obtained from desalinization will cost nine times what extracting ground water would. It is to the better that there is little ground water to extract as well. Why? Water needs to be priced to reflect its true costs, including the externalities of the costs to the environment, both short and long-term. Let the government refuse permits for ground water wells and make the consumers (residential, business/industry, and agricultural) pay for the expensive water from desalination. The government should simultaneously subsidize water-saving technologies, mandate xeriscaping, and heavily penalize water wastage.
The amount of water used to make every product sold should be mandated to be listed on the packaging/bill of sale/on company's web sites. The population needs to be educated that there is no free lunch, and that over-population and over-consumption is not sustainable and will not be condoned by society. For those who would squeal about their liberties being compromised, I would invite them to walk their talk about personal responsibilities to society and exercise some values which look beyond their personal greed and support welfare of the herd/tribe.
If gasoline and diesel were nine times their current price, then we would see all kinds of positive, energy-use-reducing measures as well. Walking, biking, taking the bus to work and to run errands, a general slowing down of the pointless pace of American society. It would cure the disease that one of my relatives called 'Having a gasoline @$$'...as in, "Joe is always running up and down the road making trips for nothing, just to get out...he has a gasoline @$$."
I just returned from D.C. (business trip), and once again traveled exclusively by the Metro and by walking. Too bad it takes so much energy/time/money to build those. It certainly seems that CNG or electric buses of various sizes are much less expensive and more flexible for routing, but stopping every block for lights and to pick up one person (or just stopping for no reason) makes them slower than subways. A combination of local rotators and cross-town expresses seems to be in order, as well as perhaps more yet smaller 'busses'...and that is probably what exists in many places...I'll have to investigate. Albuquerque sells annual bus passes for $300 and some bucks...maybe when I exit the rat race I will go that route.
Upkeep on cars is a pain in the rear...another reason for a paradigm of community electric 'zip cars'...swipe of wave your key card and rent them as required for specific little trips. Commute with friend and family and take turns on whose card gets debited.
There are ways to retain reduced sustainable mobility without going back to the stone age of doomerism...but there is a lot of glass that will have to be broken...vested interests will either have to wither away or be swept aside for the common good. Attitude changes are in order as well...people's love affair and self-identification/self-worth being represented by the style and horsepower of their cars will need to change...and this is from a marketing major who has seen the light. I also am a vet who happens to think (and have for some time) that war and war machines have very limited uses and that we should devote commensurately limited resources to their procurement and maintenance.
...desalination costs almost 9 times as much as extraction of groundwater.
But what if there is no groundwater?
Santa Barbara built a desal plant just as a drought was ending, never turned it on, and sold much of it (leaving aside the concrete structure and some piping) several years later. I do not think the city will build another one.
I have some additional information in regards to the desalination piece (http://www.theoildrum.com/node/5155) I wrote for TOD March 2.
Catalina Island has a small desal plant operated by Southern California Edison. According to the CPUC (http://www.sce.com/NR/sc3/tm2/pdf/64-W.pdf) the plant provides 25% of the Island's water but 70% of its total electricity usage.
The water rates paid by consumers are roughly $2000/AcreFoot (326,000 gallons/AF) for up to 2500 gallons. $5000/AF from 2500 to 10,000 gallons and $7200 over 10,000 gallons. Obviously Catalina has few options. However, California has barely tapped its options. The only "good" thing to be said about ocean desalination is that it will force prices higher which will bring about additional conservation--ultimately doing what the water board members don't seem to be able to do--by pricing water appropriately.
Does this sound like the kind of business model that will attract investors? Only those who are also investing in expanding airports, widening highways, and ski resorts.
Yes it is. This desal facility is in Carlsbad, about 15 minutes north of San Diego.
They are building it on the property of the Encina power plant to take advantage of the power generating and cooling inflow/outflow. The power plant is located right on the edge of the coast.
The desal portion will use existing pipes that are used for the power plant to get their seawater. Then they will use the outflow pipes to dump the highly saline water they discharge. They attach to the power plants' power generating equipment like a parasitic alien.
I remember thinking of the energy required for this process and posted a comment in the local newspaper but citizens simply are not very aware of that part of the equation. Neither are they aware of the maintenance costs. The company, Poseidon, rammed this project down the throats of the local governments despite some groups calling for more study.
If I can find the article I'll post a link. Can't remember the issues that people in the know raised.
In Australia most State capital cities will get a large desal plant. The builders say the energy needs will be offset by an equivalent build in wind farms, some of which will have direct transmission lines. I think this will turn out to be a lie in most cases and much of the energy will come from coal. However pre-warming the sea water to about 25C via the cooling section of a thermal power plant may reduce the power needs of reverse osmosis.
This water will be too expensive to use in commercial food growing. Households can of course use their dishwashing water on the vegie garden. To me that is a clear sign that humans are overstretching the world's resources. But a lot of people don't get clear signs.
One of the lessons I picked up from Limits to Growth is that a lot of "solutions" just delay the onset of the problem. Here is a great example, a water shortage caused by too much water demand (and changing climate) offset by using more energy.
So now, when energy gets short, so will water. Instead of being solved, it just means that those cities will be whacked with two problems instead of one.
Switching from oil to natural gas as a transport fuel is another. Or solving air pollution by using up the world's limited supplies of platinum in catalytic converters.
Yep, or using up Lithium for batteries.
On that basis, I have become an electric trains person myself. We should have enough iron to build quite a few rail ways. (not that I don't think there will be some electric cars, but they will not form the backbone of the transportation solution).
Hello JonFriese,
Speaking of electric cars: A lot of towns are thinking of allowing golf carts on streets. Please googlenews for more, but here is one link [also has a clickable video]:
http://www.wsoctv.com/news/19442212/detail.html
I would prefer that govts allow mc/scooter/e-bike lane-splitting as this is much more compact, cheaper, less vehicle weight, more efficient, and much faster than golf carts, but I can understand how a lot of people would want the non-balancing factor of 4-wheels.
TODer Lynford has already posted much on how cheap golf carts are now with lots of golf courses going broke. Keeping your main ICE-vehicle, for a long time, just to use for long trips, then using a golf cart for local runs is going to be much, much cheaper than buying a GM Volt.
I expect GM, Chrysler, and the other auto companies to start lobbying Congress to outlaw this trend toward legal street-use of golf carts to protect future sales of expensive PHEVS. This would be no different than when they earlier forced the destruction of widespread urban rail in most cities back in the 20th Century.
It seems that the bailout money that was sent to GM & Chrysler would have been better spent by being invested in Golf Cart companies [although Alan's RR & TOD ideas are still much, much better, IMO].
Or Jordan using what might be a large discovery of uranium to build nukes for desalinization.
I suppose Gaza is the other country largely unaffected by the global downturn.
No, having just visited the region and having in-laws that work for a large bank in Jordan, what I believe he was referring to was the fact that Jordan (and Lebanon) have almost completely missed the financial crisis caused by the purchase of mortgage-backed securities, over-leveraging and other fun and games that nearly all the rest of the developed world's private and central banks succumbed to. It seems the banks in those two countries are very well-capitalized and due to government regulation were never allowed to dabble in MBSs, CDSs, derivatives and the like and were always required to have to very high reserves. Therefore this whole financial storm has completely missed the finance sector of these two countries and they feel more than a little vindicated for their conservative approach to banking and finance.
I would think that Lithium is definitely one of the mineral resources to watch out for. Anything mined for the sake of obtaining energy while using energy in the process is situated for rapid depletion.
Umm. Lithium in batteries is used to store energy, not obtain it. And if the process of obtaining lithium requires lots of energy, then lithium is in danger of transforming into unobtanium, with no danger of depletion (that is, all the lithium will still be sitting there in the brine or clay or rock; obtaining it for our use will just represent another receding horizon...). I presume you know this well, but it's not what you stated.
I should have said maintaining energy, not obtaining. I was thinking that the batteries would be used in conjunction with renewable energy sources, but if it costs too much energy to obtain the lithium, then it won't be worth it in the long run.
Not to mention that Lithium is a key ingredient in anit-depression drugs - something I'm feeling we are going to see whole lot more need for once TSHTF!
Just tell the masses to suck on their old dead batteries.
This is an important point and very nicely put. It is exactly why a complex self-organizing system, like a modern capitalist economy, suffers collapses, and does so on all scales.
I wish my view on how all this will play out, would settle down for more than a month. To some extent it is intrinsically unpredictable: like predicting landslides as you add to a pile of sand.
Yeah, I flip from "it will be like going back to the lifestyle of my great grandparents, but with electric scooters instead of horses" to "the whole system will implode and everyone will starve and freeze".
If it would just settle, it would make taking action easier. Right now I just try to aim for the best outcome.
Nothing living is going to "settle".The only settled state is death.As you say,aim for the best outcome.
I don't imagine anyone will look at this old Drumbeat, so let me quietly note my current expectation:
In summary my current theory is that there'll be a failed recovery, then a bigger crash, then everything will happen nice and slowly after that for a long time. We'll recover into a world that is unimaginably different.
The U.S. treasury selling huge amounts of debt creates inflationary pressure because it must pay the debt with interest. Some people use the treasuries as collateral for loans allowing additional money to enter circulation in the present also creating inflationary pressure. The Fed printing U.S. dollars to buy U.S. treasuries causes inflation. I do not understand how selling a bond in the secondary bond market turns inflation off. The U.S. treasury still owes the par value and no money was destroyed.
If the Fed sells treasuries in the secondary bond market, then M1 money would be drawn out of circulation and into Fed bank accounts. However, the U.S. Treasury would still owe the par value to the new bond holders. If the Fed destroys the money to reduce the M1 money supply, then there would be even fewer U.S. dollars to pay back the bond holders.
It seems to me the way for the Fed to withdraw the money from circulation is to redeem the treasuries early at a loss and then destroy the money. This would require the Fed to keep or purchase the treasuries from the secondary bond market. The ability of the U.S. treasury to pay off the debt depends on raising taxes, slashing spending or seizure.
My forecast is that it will be hard to convert away from crude oil causing consumption and the limit of world crude oil production to repeatedly intersect causing volatility in production, demand, price and economic carnage. I do not think demand will collapse faster than supply via economic feedbacks or switching to alternative energy for more than brief periods (years). Economic feedbacks will not send the economy to zero just like they did not during the Great Depression. Something has to provide the long term pressure and, in this case, that something is a critical resource constraint. Supply and demand must intersect repeatedly to keep the pressure on. Otherwise what you are essentially saying is that peak oil and generally resource constraints are irrelevant because once tipped over the edge the unstable economy will collapse to nothing on its own. The thing that is depleting toward zero is the natural resource, not the will to have a functioning economy.
Desal plants are mostly unnecessary.
The average household use of water in the US is about 70 gallons per person per day. This does not include industrial or agriculture use.
Yet, we always hear about "drinking water." How much water are you drinking per day? From the tap?
It's really toilet-flushing water. And lawn-watering water.
Ten gallons a day is plenty IF people use composting toilets, or even just super-low-flush toilets like the one-pint toilets available today.
We don't need lawns either.
That would reduce home water usage by 6/7ths, which still leaves ten gallons/day/person, more than enough for washing dishes, brushing your teeth, doing laundry etc. etc.
Similar reductions could be achieved in industry and agriculture.
The basic problem is price. If municipal water cost $0.05 a gallon -- not a whole lot for water -- then your 70 gals/day would be $3.50 a day, or $105.00 per month. Ouch! Nobody would actually pay $105 a month of course. They would install one-pint-flush toilets and have something in their yard besides grass, and use 10 gals a day or $0.50 per day.
Well Econguy you had me up until that line. Think you could persuade a corn stalk to survive on 1/7th the water? Or cotton or any of the other irrigated plants that feed much of the nation?
Most water is used for irrigation. Most water is needed for irrigation. Drip irrigation reduces water somewhat but that is not practical in most cases. It is simply impossible to string leaky hoses, a few feet apart, over thousands of acres. The only way out of this dilemma is just to stop irrigation altogether. Of course that would mean food that keeps many millions alive would simply no longer be produced. Which would mean.....
Ron P.
Don't grow corn!
Duh!
Think about it: the shortgrass (irrigation necessary) prairie grows corn. The corn is fed to cows. People eat the cows.
System before the White Man showed up: Grass grows naturally without irrigation. (Corn is a grass.) Cows (bison) eat the grass. People eat the bison.
The second system is, actually, in terms of solar radiation --> biomass --> meat production, more efficient.
Well, we just have to radically reduce the population to a level that allows us to live off of bison then.
Anyone for mandatory reproduction control?
People are under the impression that there is some shortage of food. There is no shortage. There is a superabundance of food. Just look at the price of food today compared to historical levels. It is cheaper today than at any time in human history. $6/bushel for corn is $0.10/lb. Try to sit down and eat a pound's worth of corn. It is a lot (about 70% of a day's food).
The result is that 70% of US grain production goes into feeding livestock, where the caloric value is reduced by about 90% to 7%-equivalent. Livestock prices are also about the lowest in human history. If we ate, for example, only 20% of the meat we do today (I eat about 20% of the meat I did five years ago), then we could have less than 50% of today's production and still have more than enough food.
Or, to put it a little different way, if grain prices were higher because of no more free irrigation water, then meat prices would be higher, and then people would eat less meat and more vegetables/grains directly.
In addition, the easy availability of free/federally subsidized water has led to the growth of agriculture in places where irrigation is necessary (why not its free) but there are other advantages (long growing season, flat land conducive to mechanized agriculture etc.) This has resulted in much prime farmland that is located in areas (mostly east of the Mississippi) that do not require irrigation going out of production and becoming abandoned, because they can't compete. Thus, it seems like we need irrigation because much of the farmland that doesn't need irrigation isn't active farmland anymore.
The reaction is always and everywhere the same around here at TOD. "If we don't do things EXAAAACTLY like we've been doing them, all life will disappear." This is plainly stupid, but that doesn't seem to keep people from saying the same thing for year after year around this place.
How about the land grows corn and the people eat corn.
Entropy
Since I've provided some design help for systems involved in irrigation I can say it is a little more complicated than that. With sufficiently extensive sensor systems it is possible to reduce over watering. Currently vegetable farmers (at least those are the ones I know about) end up erring toward over watering. If they knew better the moisture content of soil and even knew this in subsets of larger fields they could reduce the amount of watering they do. But water is too cheap for them to pony up for the sensor systems.
Also, high diesel prices will make them want to water less since the cost of the diesel fuel for water pumps is a big portion of the cost irrigating - at least in SoCal for vegetable farmers.
Indigenous people in the Americas did, and I'm pretty sure they still do in some places. One way was by interplanting corn, squash, and beans, with beans growing up the cornstalks and squash leaves acting as a kind of mulch to keep moisture in the ground.
lilith
Think you could persuade a corn stalk to survive on 1/7th the water? Or cotton or any of the other irrigated plants that feed much of the nation?
Would you settle for 1/5 the water?
http://www.latimes.com/business/la-fi-greenhouse14-2009may14,0,4784175.s...
Grow plants hydroponically, raise insects for protein, use aquaponics to raise fish and recycle the wastes they produce to fertilize the plants. Reduces a lot of unnecessary waste with regards water and NPK. No, it doesn't eliminate all external inputs into the systems but it still beats growing corn to feed chickens and cows to feed us as we are doing now.
Hello Econguy,
IMO, we could also stand a lot fewer swimming pools, decorative outside fountains, golfing ponds & grass, and carwashes in my Asphaltistan. The evaporation rate in our hot, dry climate is something fierce.
This wanton waste of vital water is analogous to us having magically relocated KSA's SuperGiant Ghawar to our Southwestern desert, but we would just stupidly pump all the crude onto the blazing sand so the Sun could quickly evaporate it all away.
Another thought:
When I do a 'Google Earth Flyover' of my Phoenix, it is sad to see all the grass and swimming pools. A pool is a major initial investment, and has high ongoing expenses-- a great example of JHKunstler's typical 'Murkan mal-investment that will come back to bite us.
Imagine if, instead of pools, this $10,000-$15,000 [or more $], plus the extra $100-200/month [or more $] had been mandated, since the '70s, to go into shade trees, solar water heating, super-insulation, double pane glass, and roof-top PV panels.
IMO, my ASU Global Institute for Sustainability is not moving fast enough to spread the Peak Outreach to the my local 'Zonies:
http://sustainability.asu.edu/
Sadly, when I used their Search Engine Function: I still find no weblinks to TOD, Bart's EB, Matt's LATOC, JHKunstler, or Jay's Dieoff.org. :(
Right, but they do seem to have cute little wind propellors on their roof, which I imagine must blow over during Phoenix's desert dust storms and thunderstorms:
http://sustainability.asu.edu/about/gios_building.php
Most water is used for agriculture, not for houses.
No doubt, but I yet to see a growing plant or tree that requires an electric motor to pump water uphill from its subsurface rootball. I wish I could just stand barefoot in a spilled puddle of yeasty brew and soak it all up for a quick headrush. :)
For us humans: water flows uphill to money. :(
20% of all the water used in California is used to grow alfalfa, which is then fed to mostly dairy cows. If you add cotton and rice to those %, we have almost 50% of water growing a few crops, which make up a small fraction of ag output.
Desal has a huge carbon footprint, and is unnecessary. It is another corporate welfare project to protect a few elite huge farm corporations.
I have never heard of desalinated water used for irrigation. I thought it way too expensive for that. I googled it and found that it is used for greenhouses in the Netherlands and found a few discussions about the possibility of using it for other crops. But I don't think any large farm corporations use desalinated water for irrigation.
Desalination: Not a Panacea for Quenching Thirst
$1100 per acre foot and most crops require more water than that. That means for wheat, alfalfa, corn or soybeans, the cost of the water would be more than the profit from the crops.
Ron p.
Yes, agreed, especially with regard to composting toilets. The entire "waste water" processing system needs to be re-thought because all it does is waste water.
I also wonder about rainwater collection--or harvesting, as it is called. In addition to its own power supplies, each home could also have its own water supply with just a slight modification to the roofing and the addition of a few drums or tanks. You don't even need a pump if you use gravity for the flow.
What I'd like to know: how much phosphorus could be extracted as a side product of desal? My guess is it would increase the cost of desal since some of the cheaper methods do not dry the water, they just separate water into higher and lower mineral portions.
Maybe a better approach is to use algae to concentrate the phosphorus. Dump large amounts of ocean water in ponds and harvest the algae. It would have multiple uses and would contain phosphorus.
This brings up another issue: biodiesel oil extracted from algae will have phosphorus in it, right?
Probably not. The remaining material left after you extract the oil would have the phosphorus, and numerous other things.