Monday, 17 December 2012

NAPL - Anti-Vibration Components for Wind Turbines

NAPL (Nisco Aegis Polymers P. Ltd) is a joint venture between Nu-Tech industrial spares and services (India) & Aegis Rubber Engineering (UK), that manufactures rubber bushes for various industries. NAPL makes and supplies rubber vibration isolators and anti-vibration components for the wind turbine industry in India and elsewhere. NAPL has a manufacturing facility near Chennai in India.

Vibration isolators are required for engines, generators and other equipment that results in continuous vibrations, as a result of their operation. When these systems are mounted/restrained, they often include vibration isolators for isolating the machine vibrations from the mountings in order to reduce damage and prolong the life of the mounted equipment. Hence, vibrating bodies are attached to the bed via a rubber mounting system.

Thursday, 13 December 2012

What are the various parts of a Wind Turbine?

If you haven't watched the above embedded Youtube video, you should. It shows the various parts of a wind turbine (both sub-megawatt & multi-megawatt types). If you are involved in anyway with the wind energy industry, you'll get a very clear picture of the actual composition of the major parts inside a wind turbine.

What are Encoders and Where are Encoders Mounted on Wind Turbines?

Encoders are devices that help with speed/direction measurement & control, for different applications in wind turbines. Encoders are required to maximize the electricity generated from wind turbines.

Different encoders are used in wind turbines. Encoders are used in generators for speed measurement, used in pitch controllers & yaw controllers for measuring their direction and enabling the PLC's to control their direction. These encoders maximize the power output of wind turbines. Encoders are generally used on generator, pitch controller box, pitch drive motor & yaw controller. 

Tuesday, 11 December 2012

Advantages of Wind Energy over Nuclear Energy (Surprise: It's Cheaper!!)

Wind Energy is cheaper than Nuclear Energy. Yes! Have a look at this article which compares the inflation adjusted 'levalized' costs for various energy generation technologies. The cost (in USD per MWh) includes the price for building and operating a power plant. 

(Off-Shore) Wind Power - $97 (USD) / MWh.
Nuclear Power - $113.9 (USD) / MWh.

As you can see in that article, wind power is cheaper than most conventional and even unconventional sources of energy, except perhaps hydro power & natural gas. Also remember that the study was done in 2009 when the cost of wind power was higher than what it is now, and the cost of nuclear power has gone up substantially in the recent times.

Monday, 10 December 2012

Meteodyn - CFD Modelling software for wind resource assessment & studies

Meteodyn is headquartered in France, but they also have world-wide operations. Meteodyn makes CFD modelling software for wind resource assessment and wind studies, useful for wind energy projects.

meteodyn WT is the CFD software for wind resource assessment in complex terrain.

meteodyn Forecast is the CFD software useful for wind power forecasting.

Urbawind is the CFD software for wind energy assessment, dedicated to urban areas.

Meteodyn also performs various customized wind studies as a part of its consulting services.

More information / Website:

ReGen Powertech introduces Vensys 87 - 1.5 MW Third Generation Wind Turbine

During the recently concluded Wind Power India 2012 expo, at Chennai, ReGen Powertech announced the introduction of Vensys 87, a 1.5 MW third-generation wind turbine.

Salient points to be noted about Vensys 87:

  • 1.5 MW, Class III B Turbine
  • Suitable for low and medium wind speeds, predominantly found in India
  • Highest hub height in its class (Tower height: 85 meters)
  • Largest swept area in its class (Rotor dia: 87 meters, Swept area: 5,942 sq.m)
  • Rated wind speed: 12 m/s (Cut-in: 3 m/s; Cut-out: 22 m/s)
  • Inbuilt Low Voltage Right Through (LVRT) technology for better grid compliance 
You can download the entire press release and read it from here

ReGen Powertech - Manufacturer of 1.5 MW Wind Turbines & Turnkey Wind Power solutions in India

ReGen Powertech is the manufacturer of 1.5 MW Wind Energy Converters (Wind Turbines) in India. They also offer turnkey solutions for wind energy projects in India and SAARC countries. Their corporate office is located in Chennai and manufacturing facility is located in Tada. ReGen Powertech is an ISO 9001, OHSAS 18001 & ISO 14001 certified company.

Bonfiglioli - Wind Turbine Drives

Established in 1956, Bonfiglioli is headquartered in Italy. They have world-wide operations and manufacturing facilities/branches in 14 countries across the world. They also have a manufacturing plant in Chennai, India.

Bonfiglioli manufactures gearbox for wind turbines, pitch drive/yaw drive for rotor blades positioning and nacelle orientation, respectively. They also manufacture active solution drives (variable frequency drives) with a power range of 0.55 kW to 132 kW, for the wind power industry.

They have mentioned in their website that they are also developing a pitch drive control system and regenerator invertors for transmitting electricity from wind turbines to power grid.

Further information / Website: Bonfiglioli.   

Inox Wind Limited – An introduction

Inox Wind Limited is part of the diversified Inox Group, which is a US $2 billion professionally managed business group, with interest in diverse businesses including Industrial Gases, Refrigerants, Chemicals, Carbon Credits, Cryogenic Engineering, Renewable Energy and Entertainment. 

The INOX Group employs more than 8000 people at more than 100 business units across the country, and has a distribution network that is spread across more than 50 countries around the globe. The Group has redefined benchmarks in services and manufacturing sectors through cutting edge efficiency in operations & commitment and is a leader in every field it operates in.

Sunday, 9 December 2012

INOX WIND - Manufacturer of (2 MW) Wind Turbine in India

INOX WIND Limited is a manufacturer of wind turbines & its key components in India and they focus on the 2 MW wind-turbine segment. INOX WIND is an ISO 9001:2008 company and they have a cumulative wind turbine installation capacity of 68 MW+ in India. 

INOX WIND manufactures wind turbine tower, blades at Gujarat & hubs, nacelles at Himachal Pradesh, India. In addition to manufacturing, they also offer turnkey wind power plant project management services.

RaychemRPG - Wind Turbine & Substation Cables/Accessories &

RaychemRPG is a joint initiative between TE Connectivity, USA & RPG Enterprises, India. The company manufactures engineering/infrastructure products for the power, telecommunications, hydro-carbon, oil & gas, water industries. They supply their products and services world-wide, including India. 

I met the representatives of RaychemRPG at the recently concluded Wind Power India 2012 expo, at Chennai. They have a rich product portfolio targeting wind turbine & substation connectivity, components and accessories.

For the wind energy market, RPG's offering includes - 

Wind Turbine:

* Wind turbine control cabinet: Connectors, terminal lugs, heat shrink tubes, ampact copper grounding, surge monitors, cable assemblies, LV surge arresters, screened separable connectors.

Sri Ganesh Windpower Engineers - Turnkey wind power infrastructure developer

Established in 1995, Sri Ganesh Windpower Engineers Pvt. Ltd. is a turnkey wind power infrastructure developer based in Tamil Nadu, India. Their head office is located in Kanyakumari and their corporate office is located at Chennai.

Sri Ganesh Windpower Engineers is an ISO 9001:2008 certified company and they have set up wind power projects in Tamil Nadu and rest of India, to the tune of 80 MW till 2010.

For wind power plants, they offer turnkey infrastructure development services that include the following services - Micrositing, assembly/erection, operation/maintenance, research & development, testing/training, data management, etc.

They also own and rent cranes for erecting wind turbines. It seems, their largest crane, 230MT, is capable of erecting wind turbine generators at heights of 72 meter +.

Further information/ Website:   

Saturday, 8 December 2012

Pioneer Windcon - Design, Manufacture & Support Wind Power Systems in India

Pioneer Windcon is a wind turbine manufacturer based in Chennai, India. They have a manufacturing facility in Puducherry (Pondicherry) and they design, manufacture, market & support wind power systems. Pioneer Windcon is an ISO 9001:2008 certified company.

Pioneer Windcon has already installed more than 1,000 wind turbines all over India. More than 450 wind turbines in India are directly under Pioneer Windcon's O&M care. Their extensive data analytics capability, combined with their OEM status enables them to support wind power systems better.

Pioneer Windcon P750/49, Pioneer Windcon P250/29, addressing the 750 KW & 250 KW market segments respectively, are their flagship wind turbine products.

Further information/Website:   

RRB Energy - Indian Wind Turbine manufacturer & Turnkey solutions provider

Established in 1987, RRB Energy Ltd is an Indian wind turbine manufacturer. They have their corporate office/production facility for controller/spare-parts in Delhi. They also have a full-fledged wind electric generator manufacturing facility and wind turbine blade manufacturing facility in Chennai. 

Friday, 7 December 2012

NRG Systems - Products for Wind Measurement & Turbine Control

NRG Systems was founded in 1982 and their global headquarters is located in USA. NRG Systems manufactures wind measurement and turbine control equipment. They supply products to more than 135 countries, including India. I met their representatives at the recently concluded Wind Power India 2012 exhibition. 

Some products manufactured by NRG Systems include,

* Grand Symphonie - An integrated system with sensors and other components required for wind resource assessment. A single system can connect, collect and store data from up to 50 sensors.

* Tilt-up Towers - To get the sensors (up to 80 meters height) to measure the wind easily. Tilt up towers have simple installation and do not require cranes, drills or concrete foundations, to erect.

* Data Loggers - To record wind speed & direction and monitor the same using Internet/cell phone networks, etc.

Micro Wind Turbines in India - Unitron Energy Systems Pvt. Ltd

Established in 1987, Unitron Energy Systems Pvt. Ltd is a manufacturer of micro wind turbine systems (among others) and is based out of Pune, India. They also manufacture power conversion equipment like inverters, DC-DC converters, Charge regulators, VFD drives, etc.

Unitron Energy Systems manufactures micro wind turbines/wind generators with capacities ranging from 650 W to 5.1 KW. They also make hybrid systems and LED lights (5,400 - 18,000 Lumens). According to their website, they have installed more than 800 KW in more than 95 sites across India. A partial customer list for their micro wind turbines can be found here.
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