The International Renewable Energy Congress
The International Renewable Energy Congress (IREC) provides a forum for researchers and practitioners around the world on recent developments in the fields of renewable energy.  
4th Global Geothermal Energy Summit
ACI’s 4th Geothermal Energy Summit will provide a unique peer-to-peer learning platform with plenty of networking opportunities with key decision makers in the geothermal power industry.
Biomethane for France: WELTEC Receives Order for Biogas Project with Gas Processing
French agriculture has a wealth of raw and waste materials that are suitable for biogas plants. However, only half of the available materials are presently used for energy production.
image The International Renewable Energy Congress
image 4th Global Geothermal Energy Summit
image Biomethane for France: WELTEC Receives Order for Biogas Project with Gas Processing
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News

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Low cost foundations could cut wind energy costs by 10% over next decade

Low cost foundations could cut wind energy costs by 10% over next decade


The Carbon Trust’s Offshore Wind Accelerator (OWA) is joining forces with Statoil, Statkraft, EON, DONG Energy and Universal Foundation, in close co-operation with Aalborg University, to undertake...

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Solar farms could create hotspots of biodiversity for decades

Solar farms could create hotspots of biodiversity for decades

Solar farms could be transformed into an oasis of plant and wildlife and help reverse declining numbers of bumblebees following the publication of new industry guidelines to support biodiversity.
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Material and energy recycling of waste

Material and energy recycling of waste

In December 2010 the European Commission issued a new guideline which no longer sees waste as an unnecessary burden but rather as a valuable resource. The waste hierarchy distinguishes five stages: waste...

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Events

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Solar Trade Mission Saudi Arabia

Solar Trade Mission Saudi Arabia

The perfect way to discover, evaluate and build partnerships in the Saudi Arabia solar market. Following upon the success of this event in November 2013, Solarplaza will again organize the Solar Trade...

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5th Biomass Pellets Trade & Power

5th Biomass Pellets Trade & Power

We are thrilled to announce our 2014 series - 5th Biomass Pellets Trade & Power on 22-25 Sept, 2014 in Seoul, South Korea, co-hosted by EnerOne. With Japan and South Korea's march towards clean...

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The 6th Guangzhou International Solar Photovoltaic Exhibition 2014

The 6th Guangzhou International Solar Photovoltaic Exhibition 2014

As China’s photovoltaic industry has frequently encountered anti-dumping and anti-subsidy in foreign countries, most people focus on the solution that the government adopts to deal with the crisis....

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Companies

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IPPO ENERGY S.r.l.

IPPO ENERGY S.r.l.

IPPO ENERGY S.r.l. is part of the JO Group, cluster of five Italian companies and two non-profit organisations. IPPO ENERGY is an Energy Service Company (ESCo), which has its core business in the implementation...

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VRG Energy India Ltd.

VRG Energy India Ltd.

Over the decades, harnessing the sun's energy for the purpose of restoring natural resources has come a long way from just heating water to many other applications. Catering to the demanding requirements...

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ML SOLAR LLC

ML SOLAR LLC

ML Solar is a manufacture and wholesale distributor of solar energy products.  Our products include solar panels, solar cells, inverters, controllers, JBOX, tabbing, bus, flux, mounting and many other...

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Products

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STAFOR COMBI thermodynamic unit - ion heater hybrid system

STAFOR COMBI thermodynamic unit - ion heater hybrid system

The annual heating price increase encourages owners of private houses and apartments to search for new heating technologies and technical solutions to reduce these rising costs. Often, these solutions...

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Istar Solar Polycrystalline Solar Modules

Istar Solar Polycrystalline Solar Modules

These Off-Grid photovoltaic modules are composed of 36 high efficiency policrystalline solar cells produced with the most innovative technologies of isotropic exturization and antireflecting coating. Istar...

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Windmill V52-850 kW

Windmill V52-850 kW

Our kilowatt turbine, the V52-850 kW, is extremely reliable, and well suited to sites with restricted access or complex terrain. Compact dimensions make the V52 easy to transport and install. We have...

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Organisations

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Lithuanian Wind Power Association

Lithuanian Wind Power Association

The Lithuanian Wind Power Association unites Lithuanian wind energy market participants, i.e. wind energy investors, facility producers and service providers.

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Florida Alliance for Renewable Energy

Florida Alliance for Renewable Energy

The Florida Alliance for Renewable Energy “FARE” is a coalition of concerned individuals, businesses, communities, associations, policy makers, non-profits, and renewable energy producers.  FARE is...

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European Biomass Industry Association

European Biomass Industry Association

EUBIA, the European Biomass Industry Association, was established in 1996 as an international non profit association in Brussels, Belgium. It groups together market forces, technology providers, and knowledge...

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As the offshore wind sector grows so will the size of the turbines used to power its energy into electricity? According to the Offshore Wind Supply Chain Strategy Report 2011 the average size of offshore wind turbines is set to grow from its present 2 to 7MW capacity range to between 10 and 20MW in the next 10 to 15 years.

On the basis of a wide-ranging industry survey of offshore wind turbine manufacturer OEMs the new report finds that 40 per cent of respondents see 10 to 20MW as the standard size in future years, 35.6 per cent sees it growing to between 8 and 10MW and a notable 6.7 per cent believe it will go even larger beyond 20MW.

The report’s authors say that one of the main drivers behind the increase in size is to improve OEMs economies of scale on offshore projects and reduce cost.

The ramp-up will bring a myriad of challenges for offshore component suppliers. According to OEMs it will lead to the need for “compact and lighter designs” of blades and towers, reliable electronic components and the location of manufacturing plants closer to offshore wind farms.

One leading OEM said: “Components increasing in size is a natural development of an immature industry. The real problem will be in the logistics and how to transport extremely large components.”

Another told the report: “The coming 10-20MW turbines will be floating.  This means that the critical components will be blades, drive train and generator. Less critical but still challenging will be a floating foundation.”

When asked which components would prove to be the most difficult to scale up OEMs said rotor blades because they take a long time to manufacture, towers because of the increased costs of raw materials, direct drive because of the cost of copper and rare earth metals and bearings due to technological constraints and a limited supply base.

One OEM said: “It’s rotor blades because of the logistical difficulties. There will be a challenge in handling the blades which will be much bigger and stronger.”

OEMs told the report’s authors that they were pushing the “design envelope” on both blades and bearings to drive improved scale.

Indeed new designs, technologies and offshore innovation will be vital tools for component manufacturers to embrace in both the present and the near future if they want to gain offshore contracts from OEMs.

One of the main findings of the report was that OEMs wanted to work closer with their component suppliers on design and innovation issues including the sharing of conceptual ideas and data to shared testing.

The report highlights the case study of blade component manufacturer LM Windpower and its partnership work with OEM Alstom. Both parties are developing new 61.5m blades for use on a new 6MW turbine to be used on the Thornton Bank offshore site in Belgium. More of these partnerships are likely to follow in the years ahead.

To learn more about how to access a copy of the Offshore Wind Supply Chain Strategies 2011 Report please go to the following link:

https://secure.windenergyupdate.com/offshore-wind-turbine-report/purchase.shtml

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