Showing posts with label power plants. Show all posts
Showing posts with label power plants. Show all posts

Thursday, February 26, 2009

Wind Power Integration Easy

This research has tossed up a surprising result. Wind power can be easily integrated into a power grid by a combination of more finely managed power plant operations on a timely basis (remember just in time?) and building more flexibility into the power plants that also are on the grid. On top of that, if this is done, there is no need for any storage.

That last was a totally unexpected result. In practice, storage will still be welcome as will the integration of a power plant into municipal heat production.

We are describing a far more seamless operation than any imagined with the perceived problems that wind power presents.

Electricity Systems Can Cope With Large-Scale Wind Power

http://www.energy-daily.com/reports/Electricity_Systems_Can_Cope_With_Large_Scale_Wind_Power_999.html


by Staff Writers
Delft, Netherlands (SPX) Feb 25, 2009
Research by TU Delft proves that Dutch power stations are able to cope at any time in the future with variations in demand for electricity and supply of wind power, as long as use is made of up-to-date wind forecasts.
PhD candidate Bart Ummels also demonstrates that there is no need for energy storage facilities. Ummels will receive his PhD on this topic on Thursday 26 February.
Wind is variable and can only partially be predicted. The large-scale use of wind power in the electricity system is therefore tricky. PhD candidate Bart Ummels MSc. investigated the consequences of using a substantial amount of wind power within the Dutch electricity system.
He used simulation models, such as those developed by Dutch transmission system operator TenneT, to pinpoint potential problems (and solutions).
His results indicate that wind power requires greater flexibility from existing power stations. Sometimes larger reserves are needed, but more frequently power stations will have to decrease production in order to make room for wind-generated power.
It is therefore essential to continually recalculate the commitment of power stations using the latest wind forecasts. This reduces potential forecast errors and enables wind power to be integrated more efficiently.
Ummels looked at wind power up to 12 GW, 8 GW of which at sea, which is enough to meet about one third of the Netherlands' demand for electricity. Dutch power stations are able to cope at any time in the future with variations in demand for electricity and supply of wind power, as long as use is made of up-to-date, improved wind forecasts.
It is TenneT's task to integrate large-scale wind power into the electricity grid. Lex Hartman, TenneT's Director of Corporate Development: "in a joint effort, TU Delft and TenneT further developed the simulation model that can be used to study the integration of large-scale wind power. The results show that in the Netherlands we can integrate between 4 GW and 10 GW into the grid without needing any additional measures.
Surpluses
Ummels: 'Instead of the common question 'What do we do when the wind isn't blowing?', the more relevant question is 'Where do we put all the electricity if it is very windy at night?'. This is because, for instance, a coal-fired power station cannot simply be turned off. One solution is provided by the international trade in electricity, because other countries often can use the surplus.
Moreover, a broadening of the 'opening hours' of the international electricity market benefits wind power. At the moment, utilities determine one day ahead how much electricity they intend to purchase or sell abroad. Wind power can be better used if the time difference between the trade and the wind forecast is smaller.'
No energy storage
Ummels' research also demonstrates that energy storage is not required. The results indicate that the international electricity market is a promising and cheaper solution for the use of wind power.
Making power stations more flexible is also better than storage. The use of heating boilers, for instance, means that combined heat and power plants operate more flexibly, which can consequently free up capacity for wind power at night.
The use of wind power in the Dutch electricity system could lead to a reduction in production costs of EUR1.5 billion annually and a reduction in
CO2 emissions of 19 million tons a year.

Wednesday, June 18, 2008

Electric Cars go Nuclear

This excellent piece by Courtney over at the Stocksorbonds blog is a good read. I have personally over the years been a staunch advocate of letting supply and demand do their thing while were it is possible to grease the tracks a bit. It truly takes long term government mandated money to shape a nascent industry. I do not like that, because I understand human greed and stupidity far too well.

Yet when we point out flaws, the fact is, is that they are obvious and simply cannot last. As has been so well put, we will insist on trying every wrong way possible before we relent and do the right thing. Part of this is the limitation of human intelligence. A well thought out plan must be presented and sold to folks with the capacity to act as actuator. Being human they grasp the outline and charge off on the program with serious shrinkage. Most plans fail to survive the experience.

I have just told you about the potential for cattails. It truly requires a major planning program and the solicitation of private joint venture partners, to say nothing of a new land classification scheme. That is the minimum needed. Instead we will first get a serious of ill equipped adventures that may add to the knowledge but not speed the development of the industry very much. In the end, it will be a very important industry.

A classic example of industry and governments getting together was the development of the Canadian tar sands. The original investment was made in the late seventies and is only realizing its potential now. A mere human being cannot live to that time frame.

This article helps scope out the future size of the nuclear industry, which is now ramping up to dominate grid power all over the globe. It is about to become a dynamic industry again, with or without the US market. Recall that most countries are small and simply lack energy options. A reactor gives them national energy independence and France has shown them the value of that.

Grid power is about to become very valuable because the electric car, with all its limitations is the current best option for private urban transportation. We have much better batteries, and obviously the manufacturers are producing high voltage systems with the necessary torque for performance. Those two little tricks can produce a perky little golf cart weight vehicle that screams about town.

Mass production is about to kick in to produce an inexpensive electric car that will surely beat out a bicycle so beloved by the purists. As Courtney points out, China is cranking out millions of electric scooters. We are a little more spoiled.

It would not be astonishing if over the next decade, we see an almost complete shift over to personal electric transportation. This is very bullish, but it is naturally cheaper to build out and obviously will be much cheaper to run. Right now it is only slightly inconvenient.

Re: THE PUZZLE IS ALMOST COMPLETE

There is nothing evil in the least about petitioning the government to do what is right. Doing so is one of the very basic freedoms offered to us by our constitution. Day after day pollution continues to kill. Something should be done. The problem is that politicians fall in love with power. They seek to tailor regulations in a way that will "earn" campaign contributions from the "winners". Politicians convert the goal of protecting the environment into the goal of producing campaign contributions. Politicians on the other side also win by not solving problems but by preventing solutions from being implemented.


We have made an awful lot of bad choices. Much of the damage from past bad choices can never be fixed. We can do better.



By mandating the use of ethanol and then subsidizing some of the richest people in the world to produce the stuff, we waste our time effort and energy and we create frustration, distrust, high prices for food and even starvation of poor people. Seventy percent of the farmers in Iowa and 78% of the farmers in North Dakota receive subsidies while the average Joe pays through the nose for fuel and food. US farmers are the richest farmers in the world. Some are New York City farmers who collect the subsidies without ever setting foot on the land. It is one thing to support a crop stabilization co-op and quite another to pay massive subsidies at the height of the agricultural profit cycle. The Cap and Trade system has been designed to split the difference. It will give existing businesses oligopoly power and campaign contributions to incumbent politicians. Big business and big government win but the consumer pays through the nose.



Government has gotten too big and the profit from lobbying has gotten out of hand. We can set up appropriate regulations without constantly robbing from Peter, enriching Paul and paying off politicians in the process.


Nuclear power gave us all a scare. It took about 25 years, but the fear has largely subsided. As a result, there are nuclear power deals being made daily. The big one was the agreement between Russia and the USA. Russia will build 45 nuclear plants over the next 22 years, producing a very large amount of low cost electricity. I believe the total built by Russia will be several times the 45 called for in the agreement. Once the process gets started, who can guess the total number? In the USA, we would need to go from 104 plants to about 700 plants to reach the market share that exists in France today.


The total number of plants that will be built in the rest of the world will be greater than the number built in Russia and the USA combined. In the past few days, Jordon has executed 123 agreements with France and the USA. Japan just renewed its agreement with the USA. India is in a battle royal over its prime ministers agreement with Bush. Around the globe, and particularly in the Middle East, it is like a nuclear power race is on. The backlog for nuclear power components is great. The major components are sold out for several years to come. The doubling of the price of oil in the past year has made nuclear and many other methods of producing energy very profitable.


Over the past 25 years, trillions of tones of coal have been burned because we have not been willing to drill for cleaner burning oil and because we have not been willing to build nuclear power. Billions of barrels of oil have been consumed because we have not drilled for cleaner burning natural gas. We could put every acre of land into production of ethanol and still hardly make a dent in our energy needs. The amount of resources needed to build enough wind mills would be incredible.


Drilling does much less environmental damage as other methods. With trillions of cubic meters of gas just a short distance off our coast lines, it makes no sense to damage the environment by tilling vast tracks of fertile land or dotting the countryside with noisy windmills made of steel and concrete.


The country has gotten into a group think mode that has resulted in the suspension of belief in the basic laws of supply and demand. Supposedly knowledgeable people are constantly saying things like the corn used in cars does not drive up the price of food because it is a different kind of corn than we eat. They say putting corn in cars does not effect the price of rice because most rice is grown in other countries. They say subsidies do not distort markets but makes them better. They even say that using double the amount of steel and concrete in a wind farm is not a consideration in comparing wind energy to nuclear energy.


Your point about the scaring of land and the damage to water resources is a good one. Yes, the total costs of mining and burning coal have not been factored into the cost of the energy produced. Determining the exact cost is impossible. A commission needs to be established to estimate externalities to the best of their ability with the support of the scientific community and the congress should only vote up or down. The externalities should be taxed and the revenues should go to eliminate taxes on earnings. We need incentives to produce less pollution and incentives to produce more work and investment.



Again, we do not want to take away our right to petition the government, but we want to reduce the necessity for it. Decade after decade the congress was unable to close extra military bases because representatives fought for local pork. Most everyone agreed there were too many bases but no one was willing to volunteer to have their base closed. A commission established which bases should be closed they were.


Right now, we use energy as a political football. Everyone has their own ideas about how to "fix the problem". The incentives to come up with good solutions are huge. If the externalities created by mining and burning coal were included in the price, we would burn less coal. However, I believe it will not be long before someone comes up with the best method for microbes to digest the coal and burp out clean burning methane gas. Thirty years ago, we grew 16 bushels of corn per acre. Today, we grow as much as 250 bushels of corn per acre; Monsanto projects that we will double yields in 5-7 years; 30 times the yield in 40 years! "Bugs" are already eating coal and oil and producing methane. A number of scientists have given us good reason to believe the natural process can be sped up many times, perhaps 10,000 times.


Once people realize that the natural process of producing energy is a renewable process, they will stop wasting so much time and effort on weak substitutes. Of course, improvements in batteries could change the dynamics of wind, solar, nuclear and other power solutions. The Chinese will buy upwards of 14 million electric scooters this year not to protect the environment but because the electric scooters cost less to make than the gasoline powered scooters. With about 30 nuclear power plants coming on line over the next 12 years, China will be able to charge as many scooters as the public will buy.


Governments and capitalist are willing to gamble. There will be winners and losers but the consumer will ultimately win. History has shown that free markets generally make fewer mistakes when allocating resources than do governments. Free markets drive down prices, whereas governments frequently drive up prices. Government is needed to set up the least amount of rules as are necessary. We should trust the people to do the rest.