Wind Energy | Future of Renewable Energy | Full Documentary

Wind power is one of the fastest-growing renewable energy technologies. Usage is on the rise worldwide, in part because costs are falling. Global installed wind-generation capacity onshore and offshore has increased by a factor of almost 75 in the past two decades, jumping from 7.5 gigawatts (GW) in 1997 to some 564 GW by 2018, according to IRENA's latest data. Production of wind electricity doubled between 2009 and 2013, and in 2016 wind energy accounted for 16% of the electricity generated by renewables. Many parts of the world have strong wind speeds, but the best locations for generating wind power are sometimes remote ones. Offshore wind power offers tremendous potential.

Wind turbines first emerged more than a century ago. Following the invention of the electric generator in the 1830s, engineers started attempting to harness wind energy to produce electricity. Wind power generation took place in the United Kingdom and the United States in 1887 and 1888, but modern wind power is considered to have been first developed in Denmark, where horizontal-axis wind turbines were built in 1891 and a 22.8-metre wind turbine began operation in 1897.

Wind is used to produce electricity using the kinetic energy created by air in motion. This is transformed into electrical energy using wind turbines or wind energy conversion systems. Wind first hits a turbine’s blades, causing them to rotate and turn the turbine connected to them. That changes the kinetic energy to rotational energy, by moving a shaft which is connected to a generator, and thereby producing electrical energy through electromagnetism.

The amount of power that can be harvested from wind depends on the size of the turbine and the length of its blades. The output is proportional to the dimensions of the rotor and to the cube of the wind speed. Theoretically, when wind speed doubles, wind power potential increases by a factor of eight.

Wind-turbine capacity has increased over time. In 1985, typical turbines had a rated capacity of 0.05 megawatts (MW) and a rotor diameter of 15 metres. Today’s new wind power projects have turbine capacities of about 2 MW onshore and 3–5 MW offshore.

Commercially available wind turbines have reached 8 MW capacity, with rotor diameters of up to 164 metres. The average capacity of wind turbines increased from 1.6 MW in 2009 to 2 MW in 2014.

Full Documentary

[tnekkc]

We were prospecting for wind power sites in 1980, but came to the conclusion it was impractical. I was a power conversion engineer and wound up working on cell towers, aircraft, missiles, and defibrillators.

[Kangenpower]

At 12 - 14 minutes into this video, watching the hot forging of the metal ring is very interesting! They made it exactly 6 meters and 2 mm in diameter! And that takes into account that the metal ring will shrink by a few mm as it cools off!

[antonbrum]

If there is simply low or no wind, then there is simply no electricity. You can build a 1, 000 megawatt off shore wind farm, unless you have sufficient wind speeds or flat calm days, there is no power into the grid.

[martinsoos]

I still don't see winglets on the blades and the floating structures could be held steady by making masts just under water level and attaching cables from those masts to the ocean floor to cancel the wind forces and keep the turbine upwards. A single cable for the floating windmills might also be possible, but harder to design.

[mubtasemalmaqadma]

Nice documentary.
2022 - I think Vestas has 118m blades on the 15MW offshore turbine.

[arveostensen]

with more than windmills installed why can't anyone in the industry be truthful of the various types of severe negative consequences for the environment?

[petefluffy]

Is there a standard power consumption per home and if so, what is it? That way I can workout the power generated, I need to work it out, I can see that we will not be told,

[britishwillywanker]

Watched this same show on TV last night how much does it cost to recoup the cost of making the wind turbine itself ?made in Spain or Scandanavia then transported to the sites the deep sea turbines off Scotland are already rusty how long before for that reason will they have to be replaced ? .

[Pattern-Recognition]

It painful to see that - even for such a strategic project for the UK - everything complex was built outside the UK - in this case by a majority German company (a subsidiary of Siemens). During the last big deindustrialization, the UK lost much of its industrial potential -during the Thatcher era. 2022-25 may well go down in history when Germany loses its industrial heart. Europe will get more and more dependent on other world regions - and poorer.

[MM-bnuo]

thanks for your uniqe video on edge of the technology of wind turbines

[ronaldgarrison]

It's amazing to consider the incredibly massive amounts of material involved for any energy resource. Coal trains, offshore oil platforms, millions of miles of pipelines and wells, biofuel fields and harvesting, nuke containments and cooling towers, fusion reactors the size of skyscrapers, wind turbines that can't fit under freeway overpasses, solar panels outnumbering trees. No such thing as a free lunch.

[petefluffy]

Years of effort have gone into producing standards for measurement, so in this video you make another system, madness.

[gerald]

what was the total cost of the wind farm? what was the total kwh of electric energy generated in a year?why mislead us as to its output by stating its capability instead of reporting the actual kwh of output.

[sirjohng]

I recently watched a YT documentary which shows the massive disadvantages of these hugely costly in the first place and to maintain, monstrosities. And, no wind, no power.

[eaglekeeper]

We really need to put a wind farm off shore of Martha’s Vineyard….the people living there are the ones that would really appreciate seeing these monstrosities on a daily basis……

[ronaldgarrison]

Thumb down for text that won't turn off. Other than that, pretty good video.

[grahamflowers]

wind pushes what it touches it can not push the gaps between the blades regards Graham Flowers MEng

[Sorga_myth_dewa_real]

Wow, , cute number 102 and dalmation and doggerbank❤❤

[ellerybice]

Yes! Instead of all that speakers talking "about it" those people could have been "blowing on it".

[protestantbeliever]

Sound on this video stops at 38:15 and doesn't resume until 39:08