#Wind turbines

[todaysbird]

a share since there’s still popular belief that wind turbines are the antichrist and the absolute worst thing we could do to birds…

[reality-detective]

Compilation of reliable green energy. 🤔

[twinsfawn]

COLOSSAL GODS ON THE EXPANSES

(plainfield, iowa)

[reasonsforhope]

"Dear EarthTalk: What is wind repowering and why are environmentalists so bullish on it?

—H. King, Mesa, AZ

One of the most common forms of clean energy is wind power. People from around the world could recognize a wind farm from just one look. While wind power has been a staple in renewable energy since the idea’s inception, many of the original and old wind turbines have begun to show signs of aging. Wind repowering aims to fix this, by revamping old turbines with more efficient components, or putting in new, state-of-the-art turbines as a whole. These new components and units can reduce noise, more efficiently power a turbine, and a deliver a higher overall energy output.

Denmark, an early adopter of wind repowering, saw a 1.3 GW gain in capacity and a reduction of 109 wind turbines, enabling substantially increased wind energy production with fewer turbines. This promising data prompted a surge in wind repowering projects, and in 2019, 86 percent of wind energy projects there were classified as “repowered.”

These signs of success and scalability showed other countries the benefits of wind repowering. The U.S, with help from large energy corporations like General Electric, has more than 40 active wind repowering sites, with over 2,500 turbines having some type of renovation. This hefty wind repowering advancement is responsible for four gigawatts of energy, or the power for more than 30 million homes.

It’s no secret how fast wind repowering is growing, but upgrades can be made to many different types of renewable energy. Why do eco-advocates support wind repowering so strongly? Wind repowering has energy, financial, aesthetic and technological benefits. Not only does it make units more efficient, it also removes units that might be aesthetically unpleasing, or in less efficient spots than they could be. Wind repowering also increases the lifespan of turbines by as much as 20 years, and reduces the need for maintenance. Repowered turbines are also quieter, sleeker, and produce considerably more energy.

So, while there are many types of repowering efforts for other renewable energy sources, none are as comprehensive or successful as wind repowering. Not only is it a comprehensive option for revamping clean energy, but it does not require the entry costs that just building new wind farms requires.

The only barrier to wind repowering at the moment is legislation. Bills and policies cannot keep up with the demand for it. Readers should call local officials, or urge any nearby wind farms to look at wind repowering. Spreading awareness is the first and most important step."

-via E: The Environmental Magazine, April 26, 2024

[2000ghosts]

june 5, 2009

[huariqueje]

Calm , Windstille - Hanno Karlhuber, 2003.

German, b.1946 -

Acrylic and oil on wood , 70 x 100 cm. 27.5 x 39.3 in.

[earhartsease]

we're honestly really baffled by people who call wind turbines "ugly" - every time we see them we feel incredibly uplifted

like we know they can harm wildlife - but fossil/atomic fuels, their mining and extraction and transport and conversion to energy and disposal of waste (and all of the diesel burned doing most of that and the machinery constructed to do all of that) are so incredibly more damaging to wildlife compared to a thing you build and move to a place and put up once and then it just stands there, generating power from the wind with minimal maintenance

anyway we find them beautiful and soothing

[sixpenceee]

Storm destroying a windmill | source

[carrionboy]

a recurring dream

[arc-hus]

Desert Interpretation Centre, Antofagasta, Chile - Emilio Marín & Juan Carlos López

[oneleggedflamingo]

19.06-24

One of my faves. :3

- Vivera Rossi

[reality-detective]

Thinking that countries can run on breezes is worse than delusional.

A two-megawatt windmill is made up of 260 tons of steel that required 300 tons of iron ore and 170 tons of coking coal, all mined, transported and produced by hydrocarbons.

They each consume 10'000 liters (more than 2600 gallons) of crude oil based lubricants per year.

When outdated, the wind turbines are being buried deep in forests, out of public view, due to the high costs associated with recycling them.

A windmill could spin until it falls apart and it will NEVER, EVER generate as much energy as was used in building it. 🤔

[thedayaftereveryday]

Energy……

@thedayaftereveryday

[wachinyeya]

[reasonsforhope]

Countries That Generate 100% Renewable Energy Electricity

Pictured: Hydropower is the most widely used source of renewable energy-generated electricity. This dam is located near Polson, Montana.

Is 100% Renewable Resource-Generated Electricity Possible?

"With concerns growing regarding burning fossil fuels and their connection to global warming, a great debate is occurring regarding the feasibility of producing electricity entirely from non-carbon emitting green renewable energy sources such as geothermal, hydroelectric, wind, and solar. Skeptics and naysayers claim that achieving such a goal is impractical, would destroy the economy, and is in the realm of pie-in-the-sky thinking.

But is it actually impractical and unattainable? The answer is clearly "no" since there are already several countries that generate 100% of the electricity they use from renewable sources of energy. There are also many other countries that obtain over 90% of the electricity they use from renewable energy sources. Despite the negative rhetoric by some, there’s nothing impractical about using renewable energy to generate electricity on a grand scale.

The Countries Leading the Way to a 100% Renewable Energy Electricity Future

The following is a list of countries that are leading the world into the new frontier of economies that run their electrical grids either entirely or nearly entirely on renewable energy per a 2018 report by the International Renewable Energy Association (IREA) and the U.S. Energy Information Administration (EIA) statistics. This list and the percentages are subject to change over time, but it provides a good snapshot of just how practical renewable energy currently is for electricity generation.

Iceland obtains 100% of the electricity it needs from renewable energy sources. Iceland is somewhat unique since volcanic activity on the island provides a significant geothermal energy source that is utilized to provide approximately one-quarter of the country’s electricity. The remaining three quarters are provided by hydro-power.

Paraguay obtains 100% of the electricity it uses from renewable sources. Huge hydropower dams provide all of Paraguay's electricity needs, as well as supply neighboring Argentina and Brazil with electricity.

Costa Rica is another country leading the way towards 100% renewable-produced electricity. During 2018, Costa Rica met all of its electricity needs using renewable energy sources such as hydro-power, geothermal, biomass, wind, and solar for 300 days in a row.

Ethiopia, Kenya, Namibia, Norway, Tajikistan, and Uruguay are countries currently generating greater than 90% of the electricity they use from renewable energy sources. Some of these countries are working towards running their electric networks entirely from renewable energy.

Some things stand out from the list of countries leading the way in electricity generated from renewable energy.

They are relatively small countries.

They have abundant renewable natural resources, particularly abundant water resources available to generate hydro-power.

The list includes both wealthy developed and poor developing countries.

The fact that both developed wealthy countries and poor developing countries are leaders in renewable energy-produced electricity indicates that the cost of constructing renewable energy resources is not a limiting factor. In fact, developing countries can justify the capital cost of building renewable energy sources of electricity due to the fact that the operating costs are relatively low and predictable (not subject to commodity price swings), and renewable energy allows a country to be self-sufficient in meeting its electricity needs.

Large Developed Countries Can Also Produce 100% Of Their Electricity From Renewable Energy

Critics and naysayers might say that while these achievements by small countries are impressive, implementing renewable energy on a large scale is impractical for larger developed countries. But is it really impractical?

Cost and technological barriers are not what they once were for renewable energy. In fact, costs for renewable energy continue to decline year after year, and renewable energy technologies continue to develop and become more efficient. Many countries have not even come close to tapping their renewable energy potential or even tried some of the technologies available, such as electricity generated by wave or tidal power. Additionally, the argument that renewable energy is only useful when it is being generated is becoming irrelevant since large utility-scale batteries are now available that have the capability to store electricity generated by renewable energy and allow it to be used when needed.

Clearly, the answer is yes. Large developed countries can produce 100% of the electricity they need from renewable sources. It is only a matter of the will and investment at this point to make the changeover from fossil fuel-generated electricity to renewable energy electricity generation. The technical barriers are not as great as naysayers claim, as proven by smaller countries that have already reached the 100% threshold. Moving towards 100% renewable energy sources of electricity will become easier over time as wind, solar, and other renewables become more efficient and large utility-scale battery storage technologies become capable of storing larger quantities of energy for use when needed.

Pictured: Researchers lay out a plan for nearly 140 countries that could be powered 100 percent by renewable energy by 2050. spectrum.ieee.org

The City of Los Angeles Leads the Way in the U.S. With Inexpensive Solar

Various forms of renewable energy have experienced significant cost reductions to a point at which they are competitive and, in some cases, cheaper than traditional electrical energy sources such as coal, oil, and natural gas. This cost reduction trend will accelerate the change over to renewable sources of electricity. For example, the City of Los Angeles signed a deal in July 2019 for a large solar electricity array that will provide 7% of the city's electricity by 2025 at only two cents per kilowatt-hour (kWh). This is far cheaper than fossil fuel-derived electricity.

In addition to being cost-competitive, the practicality and reliability of renewable energy are poised to make major advances as large utility-scale battery technologies are rolled out that can be used to capture renewable energy when it is created, so the electricity can be used at a later time when needed. The Los Angeles solar array project includes utility-scale battery backup at a cost of 1.3 cents per kWh, so the electricity generated by the sun will be available even when the sun is not shining.

Los Angeles has a goal of achieving 100% renewable electricity generation by 2050. This solar contract is a big step toward achieving their goal."

-via TurboFuture, February 21, 2023