Wind turbines cost of production
The power generation curve is dependent on the cube of the wind speed. Most MW wind generators have peak efficiency at about 30 mph. But the wind generators installed east of me Idaho Falls, Idaho are idle several days per week and only a mild breeze blows the rest of the time. Even on a good week, plug in 3 hrs instead of 9. One of the major expences that are left out saleries, benifits and pensions. What about cost envolved to support the employees to do there job office space, office equipment, office supplies, tools, test equipment vehicals cars, trucks vehical parking, vehical maintance, record maintance, evil fuel for vehicals, evil fossil fuel generated electricty to prevent blackouts and brownouts for those low wind and down for maintance periods.
Note if a system requires a backup system some of that cost needs to be included. End result raise rates and or taxes. This is a wrong caluclation after all. Units are not consistent 2. The break even point of this machine is 20 years itself. Remeber when you calculate the cost of enrgy unit additional USD was included. You dont have to consider it again. These calculaions contain many errors.. Someone may comment on this and clarify whether I am wrong. The units does not match with the rest of the equation parameters or am I mistaken?
Thanks for your comment, Mark, and too for the cost figures. Thanks for your comment, Mark, and thanks too for the cost figures. Unfortunately, this post greatly generalizes a few things, the most important of which is the average selling price of electricity.
In some markets, electricity is considerably more expensive to consumers and businesses than other markets. One way or another, the price of energy derived from non-renewable sources oil, coal, nuclear, gas is going to go up very soon. Renewables such as hydro, wind, and solar are much more constant and costs can be kept down in the long term.
If the price were From here subtract expenses from Gross Income of. This is your annual profit. Now that we know how much we make each year, we need to plug that into a formula to find our ROI Return on Investment. This is a fairly low number for ROI. Another very important figure is the Break Even Point or how long until your investment is paid for. Therefore, the Break Even Point in our example is As you can see here, when you have a product life of 20 years, your product will have paid for itself after What do we learn from this?
Well at the current costs of turbines, turbine installation, and maintenance, along with the current price of 7. This explains the exuberant amounts of federal grants and stimulus money being pumped into the renewables market. This being said, I still believe that WindPower is the future of energy production around the world, it just takes some time to integrate new ideas into the marketplace and for prices to become competitive.
So, the equation is right, and please refer to the publication from NREL for further reference. Further, the unit for LCOE is expressed in terms of per unit rate for the Capital Cost element, while for other cost elements it is not. This number is highly suspect since you are assuming that the wind blows at the optimum speed for 9. The power generation curve is dependent on the cube of the wind speed. Most MW wind generators have peak efficiency at about 30 mph. But the wind generators installed east of me Idaho Falls, Idaho are idle several days per week and only a mild breeze blows the rest of the time.
Even on a good week, plug in 3 hrs instead of 9. One of the major expences that are left out saleries, benifits and pensions.
What about cost envolved to support the employees to do there job office space, office equipment, office supplies, tools, test equipment vehicals cars, trucks vehical parking, vehical maintance, record maintance, evil fuel for vehicals, evil fossil fuel generated electricty to prevent blackouts and brownouts for those low wind and down for maintance periods.
Note if a system requires a backup system some of that cost needs to be included. End result raise rates and or taxes. This is a wrong caluclation after all. There is currently Although 25 of the 27 EU Member States now utilise wind power, there is still a substantial amount of wind power capacity available among countries like France, the UK, and Italy.
Wind turbines can carry on generating electricity for years. Over their lifetime they will be running continuously for as much as , hours. This compares with the design lifetime of a car engine, which is 4, to 6, hours. The blades rotate at anything between revolutions per minute at constant speed. However, an increasing number of machines operate at variable speed, where the rotor speed increases and decreases according to the wind speed. The ability to generate electricity is measured in watts.
Electricity production and consumption are most commonly measured in kilowatt hours kWh. A kilowatt-hour means one kilowatt 1, watts of electricity produced or consumed for one hour. The output of a wind turbine depends on the turbine's size and the wind's speed through the rotor.
An average onshore wind turbine with a capacity of 2. The wind passes over the blades creating lift like an aircraft wing which causes the rotor to turn.
The blades turn a low-speed shaft inside the nacelle: Here, the slow rotation speed of the blades is increased to the high speed of generator revolution. Some wind turbines do not contain a gearbox and instead use a direct drive mechanism to produce power from the generator.
The rapidly spinning shaft drives the generator to produce electric energy. Electricity from the generator goes to a transformer which converts it to the right voltage for the electricity grid.
The electricity is then transmitted via the electricity network. The power grid operator constantly matches the electricity generation available to electricity demand. Wind is variable, but predictable. Wind farm sites are chosen after careful analysis of wind patterns. This enables a forecast of output to be made - information which can be made available to the network operators who will distribute the electricity.
In the future, once a truly European electricity grid has been constructed, wind-powered electricity will be able to be traded between EU countries to balance out supply and demand even more easily. Other renewables such as solar will also form part of this electricity exchange. It was built around large fossil-fuel burning power stations usually sited near large urban areas.
European grids are largely national grids. In order to harness the power of renewable energy, including wind, the grid has to be extended to where the resource is located: For wind, this includes out to sea, and in some remote land areas.
The grid needs to be expanded so that it can deliver power from where the wind is blowing to where it is needed. The grid also needs to be better interconnected to improve security of supply and prevent black outs — regardless of the source of energy — and in order to improve competition in the electricity market, which would bring down prices.
A European grid might also use more modern cables that lose less electricity in transit. In the electricity sector, a transmission system operator TSO is a company that transmits electrical power from generation plants to regional or local electricity Distribution System Operators DSO.
It is responsible for operating, maintaining and developing the transmission system for its own control area and its interconnectors. It aims to increase integration between electricity markets in the EU, establish network codes which will define rules for cross-border grid management and develop a Pan-European ten-year plan for grid development.
The key will be a Europe-wide power grid which will transport wind energy from where it is produced to where it is consumed — the wind is always blowing somewhere. Wind turbines produce no greenhouse gas emissions during their operation.
It takes a turbine just three to six months to produce the amount of energy that goes into its manufacture, installation, operation, maintenance and decommissioning after its year lifetime.
During its lifetime a wind turbine delivers up to 80 times more energy than is used in its production, maintenance and scrapping. Wind energy emits no toxic substances such as mercury and air pollutants like smog-creating nitrogen oxides, acid rain-forming sulphur dioxide and particulate deposits. These pollutants can trigger cancer, heart disease, asthma and other respiratory diseases, can acidify terrestrial and aquatic ecosystems, and corrode buildings.
Wind energy creates no waste or water pollution. Unlike fossil fuel and nuclear power plants, wind technology uses very little water to produce electricity. Given the fact that water scarcity is pressing and will be exacerbated by climate change and population growth, wind energy is key to preserving water resources.
Each year we release millions of tonnes of carbon dioxide by burning fossil fuels oil, coal and gas contributing to climate change.
Wind energy produces no greenhouse gas emissions during its operation. A turbine will produce up to 80 times more energy than is used to build, install, operate, maintain and decommission it. Birdlife recently stated that climate change was the single largest threat to birds and wind and renewables were a clear solution to climate change.
Wind farms are always subject to an Environmental Impact Assessment to ensure that their potential effect on the immediate surroundings, including fauna and flora, are carefully considered before construction is allowed to start.
Deaths from birds flying into wind turbines represent only a tiny fraction of those caused by other human-related sources such as vehicles and buildings. It has been estimated that wind turbines in the US cause the direct deaths of only 0. Awareness campaigns such as the Global Wind Day help inform Europeans and people around the world about the benefits of wind energy.
The noise of wind turbines has been reduced significantly. Improved design has drastically reduced the noise of mechanical components so that the most audible sound is that of the wind interacting with the rotor blades. This is similar to a light swishing sound, and much quieter than other types of modern-day equipment. Even in generally quiet rural areas, the sound of the blowing wind is often louder than the turbines. Wind energy is one of the cleanest, most environmentally-friendly energy sources.
It emits no greenhouse gases or air pollutants.