Aviation Obstruction Lighting systems are needed to visually mark windfarms to ensure the safety of passing air traffic. Ms.Sophia Guo Overseas Business Development ------------------------------------------- HUNAN CHENDONG TECH CO., LTD Tel: +0086-0731-85563265 Fax: +0086-0731-85563365 Phone/WhatsApp: +0086-13929493960 Skype: sophia.guo88 Email: sophia@chendongtech.com Website: http://www.cdt-en.com/

1. Obstacle Lighting of Onshore Wind Turbines
A wind farm or wind park, also called a wind power station or wind power plant, is
a group of wind turbines in the same location used to produce electricity. Wind farms
vary in size from a small number of turbines to several hundred wind turbines
covering an extensive area. Wind farms can be either onshore or offshore.

2.  Advantages of Wind Power
Wind energy offers many advantages, which explains why it's one of the
fastest-growing energy sources in the world. To further expand wind
energy’s capabilities and community benefits, researchers are working to
address technical and socio-economic challenges in support of a
decarbonized electricity future.
1. Renewable and Sustainable: Wind energy is a renewable resource,
wind turbines harness energy from the wind using mechanical power
to spin a generator and create electricity. Not only is wind an
abundant and inexhaustible resource, but it also provides electricity
without burning any fuel or polluting the air. Wind energy in the
United States helps avoid 336 million metric tons of carbon dioxide
emissions annually—equivalent to the emissions from 73 million
cars.
2. Reduced Greenhouse Gas Emissions: Wind power produces
electricity without emitting greenhouse gases, helping to mitigate
climate change and reduce air pollution.
3. Low Operating Costs: Once a wind farm is set up, the operational and
maintenance costs are relatively low compared to conventional power
plants.

3. 4. Job Creation: The wind energy industry generates employment
opportunities, from manufacturing and installation to maintenance
and operation of wind turbines.
5. Diversification of Energy Sources: Wind power adds diversity to the
energy mix, reducing dependence on finite fossil fuels and enhancing
energy security.
6. Economic Benefits for Communities: Wind farms often bring
economic benefits to local communities, including tax revenue, lease
payments to landowners, and increased economic activity.

4. Harnessing the power of the wind is a sustainable and crucial step
towards a cleaner, greener future. Wind farms, with their towering turbines
reaching towards the sky, contribute significantly to renewable energy
production. However, ensuring the safety of both the turbines and the skies
above is of paramount importance. Enter the unsung hero: the obstruction
light.
 What's the aviation obstruction light?
Aviation obstruction lighting is used to enhance the visibility of structures
or fixed obstacles which may conflict with the safe navigation of aircraft.
Obstruction lighting is commonly installed on towers, buildings, and even
fences located in areas where aircraft may be operating at low altitudes. In
certain areas, some aviation regulators mandate the installation, operation,
color, and/or status notification of obstruction lighting. For maximum
visibility and collision-avoidance, these lighting systems commonly employ
one or more high-intensity strobe or LED devices which can be seen by
pilots from many miles away from the obstruction.
Obstruction lights are vital markings for pilots, and the most commonly
used regulation standard is ICAO. Annex 14 of ICAO regulations gives
necessary lighting requirements for any structure.
Low-Intensity Obstruction Lights are the first stage of lighting required,
warning of the presence of obstacles up to 45m height.
Medium-Intensity Obstruction Lights are more complex, designed to warn
the presence of obstacles with a height between 45m and 150m.
High-Intensity Obstruction Lights are used to warn the presence of obstacles
with a height above 150m or when an aeronautical study indicates such
lights as mandatory for the correct warning of an elevated structure.
Obstruction lighting is used in multiple applications. These include but are
not limited to: telecommunication towers, wind turbines, chimneys, cranes,
buildings, bridges, high tension pylons and other buildings.

5.  Why do some wind farms need to install obstruction lights?
A single wind turbine or wind turbine farms, which has the potential to
endanger aviation in navigable airspace or has the potential to interfere with
the operation of navigation, should be lighted.
Obstacle lights are intended to alert a pilot flying at low altitude to the
presence of an obstacle allowing the pilot to safely navigate around it. The
low-level airspace around a wind farm is typically uncontrolled. This means
that flights are not separated from each other by air traffic control; the pilot
is responsible for avoiding other traffic and obstacles based on the principle
of see-and-avoid. It is therefore imperative that obstacles penetrating this
airspace (which starts at the minimum flight altitude of 150m above ground
level) are equipped with obstacle lights, especially in low visibility
conditions and at night.
Air traffic in uncontrolled airspace normally operates under Visual Flight
Rules , which requires the pilot to remain below the clouds and adhere to
visibility minima. European standards, as laid down in the Standardised
European Rules of the Air prescribe a minimum visibility of 1,500m in
daylight1 and 5,000m at night. Note that helicopters may be permitted to
operate in 800m visibility3 and that further exemptions may apply to special
cases such as military, search and rescue, medical emergency and
fire-fighting flights.
Unless the wind farm is located near an airport, the wind turbines will
normally not pose a threat to commercial airlines. The kind of air traffic that
is usually encountered at low altitudes in the vicinity of a wind farm
encompasses smaller aircraft (private operators, flight schools) and
helicopters (military, police, medical emergency services). Obstacle lights
are therefore designed to provide this kind of traffic with a timely alert
under any circumstances in which this traffic is allowed to operate
(day/night, minimum visibility). This means that the intensity of the obstacle
lights is such that the acquisition distance is sufficient for the pilot to
recognize the danger, take evasive action and avoid the obstacle by a safe
margin.

9. Next time you marvel at the majestic sight of wind turbines stretching
towards the horizon, remember the role played by the humble obstruction
light. As we journey towards a more sustainable energy landscape, let's
appreciate the careful balance between progress and safety, working hand in
hand to illuminate not just our landscapes but also the skies above.
#RenewableEnergy #WindPower #AviationSafety
Ms Sophia Guo | Overseas Business Development
Hunan Chendong Technology Co.,Ltd
T:+86-0731-85563165 85563265 | F: +86-0731-85563365
P: +86-13929493960(Whatsapp) | Skype:sophia.guo88
A:#4 Building, No.588 XinCheng Science&Technology Park, West of
Yuelu Ave., Hi-Tech Development Zone,Changsha,China.
W:http://www.cdt-en.com/ | E: sophia@chendongtech.com