One main reason for the recent drop in quarterly installed wind power may have been the political climate during the election and the uncertainty of renewing the Production Tax Credits for wind. Also, the global recession affected the market dramatically in 2009, and we can see it increasing ever since.
There is no need for renewable energy mandates. Both wind and solar are unreliable sources of energy and produce so little as to lack any justification for their existence.
The wind industry exists because it spends millions annually to convince legislators that it should not only be subsidized and because many states require its use. Take away the interference of government entities and the industry would have no real basis to exist. It is a fraud.
In another perspective of the AWEA report, if one looks at the cumulative wind power capacity in the US since 2001 it can be said that the sector has been growing steadily. Looking at the quarterly projects under construction we see that they have actually been on the rise since the recession (except for the very uncertain period of 4Q2012). “Every region in the U.S. has more under construction and online in 2012 than they installed in all of 2011”. So after the recession, from 2010-2012 quarterly installed capacity was growing. I would say this rise would have been continued were it not for the PTC’s expiration. Now that the tax credits have been extended, although for only this year of 2013, could we expect the same trend or should we expect wind farmers to follow Texas’ suit? Texas, according to one of the sources, 26% of its generated wind power is now being utilized – a new record. What caused this increase in utilized wind power, and would this be adopted elsewhere?
I completely agree that the tax credits should be renewed further for the sake of the domestic wind market, and I wonder how many domestic direct and indirect jobs would be at stake it were to crash? What would cause the major market players in US wind power to withdraw? Despite the gains in the wind industry, producers’ and investors’ decisions will heavily depend on the tax credits’ future.
So wind energy is justified as reducing greenhouse gases that are not causing global warming which does not exist, is receiving millions in subsidies, and wants to kill protected species, an environmental objective. This is hypocrisy on a galactic scale.
The UK has as much offshore wind capacity as the rest of the world combined, with 568 installed turbines totalling 1,858MW off the coast of the country.
Based on the current pipeline of projects – seven wind farms are under construction and six are awaiting planning consent – the UK’s sector lead is likely to continue until the end of the decade, according to Global Offshore Wind 2012, a report by Renewable UK.
Here we list the country’s largest offshore wind farms in operation and under construction.
The London Array, under construction in the outer Thames Estruary, 15km off the coast of Kent, will be the largest offshore wind farm in the UK and indeed the world once complete. The project, which commenced construction in July 2009, will consist of 341 turbines covering an area of 245km. The whole development is expected to cost around £3bn and is being built by London Array Limited, a consortium consisting of Masdar, E.ON and DONG Energy. The farm is being constructed in phases, the first of which is expected to become operational in Q4 2012 and will generate 630MW. The second stage will add enough capacity to generate 1,000MW for 750,000 homes.
Eolian energy domestic windmill power dynamo 5kw 1.high efficiency+small size 2.CE proved+7patents 3.NO MOQ+wholesale price
|Configuration||3 Blades, Horizontal axis, upwind|
|Direction of Rotation||Clockwise looking upwind|
|Rated Power||5 kW at 12m/s|
|Maximum Output Power||5.6 kW at 20m/s|
|Battery Bank Voltage||240 Vdc|
|System Output Voltage||110/220/380 Vac|
|Cut-in Wind Speed||3 m/s|
|Rated Rotating Rate||240r/min|
|Working Wind Speed||3-25 m/s|
|Survival Wind Speed||50 m/s|
|Wind Energy Utilizing Ratio||0.40 Cp|
|Energy monitoring & User control||Siemens PLC controller with touch screen|
|Alternator||Permanent magnet alternator, SCF technology|
|Alternator Weight (kg)||147 kg|
|Gearbox||None, Direct drive, generator prepositive design|
|Blade Material||Fiberglass reinforced composite|
|Over Speed Regulation||Auto Yawing|
|Shutting Down Method||Manual & Automatic electromagnetism Braking|
|Warranty||2 Years for Generator and 1 Year for other parts|
Features of windmill power dynamo 5kw:
1. SCF supercritical generator technology, generator weigh only 147kg, generation efficiency over 0.80.
2. Quality parts use SKF bearings and Siemens PLC control system and so on
3. Generate 5kw power at 10m/s.
3. Sine wave output, drive 2kw pump, 5kw appliances etc.
4. Use electric protection
5. Connect with 1500w solar panels to make up the wind solar hybrid system.
Application of Model H6.4-5000W domestic windmill
It can drive air-condition (3-5 horsepower), 1.7KW water pump or other resistive appliances (≤5KW).
Well used in:
Wind power is the conversion of wind energy into a useful form of energy, such as using wind turbines to make electrical power, windmills for mechanical power, windpumps for water pumping or drainage, or sails to propel ships.
Large wind farms consist of hundreds of individual wind turbines which are connected to the electric power transmission network. For new constructions, onshore wind is an inexpensive source of electricity, competitive with or in many places cheaper than fossil fuel plants. Small onshore wind farms provide electricity to isolated locations. Utility companies increasingly buy surplus electricity produced by small domestic wind turbines.Offshore wind is steadier and stronger than on land, and offshore farms have less visual impact, but construction and maintenance costs are considerably higher.
Wind power, as an alternative to fossil fuels, is plentiful, renewable, widely distributed, clean, produces no greenhouse gas emissions during operation and uses little land. The effects on the environment are generally less problematic than those from other power sources. As of 2011, Denmark is generating more than a quarter of its electricity from wind and 83 countries around the world are using wind power to supply the electricity grid. In 2010 wind energy production was over 2.5% of total worldwide electricity usage, and growing rapidly at more than 25% per annum.
Wind power is very consistent from year to year but has significant variation over shorter time scales. As the proportion of windpower in a region increases, a need to upgrade the grid, and a lowered ability to supplant conventional production can occur. Power management techniques such as having excess capacity storage, geographically distributed turbines, dispatchable backing sources, storage such as pumped-storage hydroelectricity, exporting and importing power to neighboring areas or reducing demand when wind production is low, can greatly mitigate these problems. In addition,weather forecasting permits the electricity network to be readied for the predictable variations in production that occur.