http://www.engineeringnews.co.za
  SEARCH
Login
R/€ = 14.20Change: 0.11
R/$ = 11.08Change: 0.00
Au 1216.40 $/ozChange: -0.63
Pt 1339.00 $/ozChange: 4.00
 
 
Note: Search is limited to the most recent 250 articles. Set date range to access earlier articles.
Where? With... When?








Start
 
End
 
 
And must exclude these words...
Close Main Search
Close Main Login
My Profile News Alerts Newsletters Logout Close Main Profile
 
Agriculture   Automotive   Chemicals   Competition Policy   Construction   Defence   Economy   Electricity   Energy   Environment   ICT   Metals   Mining   Science and Technology   Services   Trade   Transport & Logistics   Water  
What's On Press Office Tenders Suppliers Directory Research Jobs Announcements Contact Us
 
 
 
RSS Feed
Article   Comments   Other News   Research   Magazine  
 
 
Oct 05, 2012

Local small wind turbine offered UK certification

Back
Johannesburg|Port|Port Elizabeth|Eveready|Kestrel|Renewable Energy|Renewable-Energy|Safety|Turbines|Water|Scotland|United Kingdom|United States|Port Elizabeth-based Factory|TÜV NEL Facility|Battery Manufacturer|Borehole Solution|Building|Energy|Grid-tie Applications|Grid-tie Solution|Products|Renewable Technology Installations|Services|Supply Energy|Telecommunications Operations|Wind Energy|James Carpy|Leon Gouws|Power|Turbines|Water|E400nb 3.5 KW
Port||Renewable Energy|Renewable-Energy|Safety|Turbines|Water|||Building|Energy|Products|Services|Wind Energy|Power|Turbines|Water|
johannesburg|port|port-elizabeth|eveready|kestrel|renewable-energy|renewable-energy-company|safety|turbines-company|water-company|scotland|united-kingdom|united-states|port-elizabeth-based-factory|tuumlv-nel-facility|battery-manufacturer|borehole-solution|building|energy|grid-tie-applications|grid-tie-solution|products|renewable-technology-installations|services|supply-energy|telecommunications-operations|wind-energy|james-carpy|leon-gouws|power|turbines-person|water|e400nb-35-kw
© Reuse this



South African battery manufacturer Eveready’s Kestrel Renewable Energy subsidiary had its e400nb 3.5 kW wind turbine approved and certified in August as part of the UK government’s Microgeneration Certification Scheme (MCS).

The MCS is a British Standards EN45011 scheme aimed at ensuring the quality of renewable technology installations and products. Kestrel was awarded certification following rigorous testing between July 2011 and March this year at independent testing and assessment services provider TÜV’s NEL wind- turbine test facility, in Scotland, in the UK.

The tests involved mainly safety, performance, durability and acoustic analyses. All design calculations were verified to comply with the British Wind Energy Association (BWEA) Small Wind Turbine Performance and Safety standard.

The tests showed that the small wind turbine is able to withstand winds of up to 252 km/h.

Kestrel technical director and e400nb designer James Carpy says a team of quality engineers was sent out from the TÜV NEL facility to Eveready’s Port Elizabeth-based factory to appraise the Kestrel factory production control.

Carpy notes that the Kestrel e400 range was developed in Johannesburg by Kestrel from 2004.

Since 2006, the range has been improved and perfected under the ownership of Eveready and the first version went into production in 2010.

After seven years of design and quality improvement, the current e400nb was fully developed in 2011.

Carpy says, as a designer, his goal was to realise a fully South African wind turbine that would successfully compete in the global market, while offering an African solution to supply energy to rural areas.

“The Kestrel e400nb 3.5 kW turbine is manufactured in standard voltages for remote battery charging, borehole water delivery and grid-tie applications. The battery-charging version connects to a sophisticated charge controller and is used at remote sites to supply energy to telecommunications operations, farms and households. The borehole solution is matched to a high-quality borehole pump, while a grid-tie inverter that connects directly to the existing mains supply optimises the grid-tie solution,” he explains.

The building then runs preferentially on wind power, with any shortfall in energy being supplied by the mains. This results in a reduced electricity bill.

Further, in the UK, users are able to participate in the Department of Energy and Climate Change’s Feed-In Tariff (FIT) scheme, with government paying participants for the electricity they produce.

The current rate paid to the owner is R3.70/kWh produced by the Kestrel e400nb.

Kestrel director Leon Gouws says solid returns from renewable energy, new technology and improved government incentives make it easier to become less reliant on fossil fuels.
“The UK government’s target [to produce 20% of its energy] from renewable sources by 2020, combined with the certification process, means that people can support this vision, knowing their turbine is robust enough to withstand the toughest of winds and is reliable enough to ensure consistent energy production,” he assures.

Turbine Specifications
The e400nb turbine has a mass of 250 kg, with a blade rotor diameter of 4 m and an overall length of 3 m. The peak power output is independently verified at 3.5 kW and the BWEA-rated yearly energy production at a wind speed of 5 m/s is 3.92 MWh/y.

Carpy notes that all Kestrel turbines use an axial flux multipole permanent magnet alternator.

The Kestrel e400nb is fitted with the 120-pole version, which exhibits a low starting torque and good power density. A fully patented pitch control hub limits the wind turbine and, when the blade rotor reaches the maximum speed, the pitch control adjusts the blade angle of attack to the wind, causing each blade to lose lift and increase drag.

“Therefore, the turbine maintains maximum power at the rated wind speed of 11 m/s or more. The lateral thrust on the turbine also reduces with pitch control, which greatly diminishes the stress on the supporting tower. Many existing Kestrel turbines are operational in all climates – from the heat of the African desert to freezing temperatures in Alaska,” Carpy highlights.

As a result of the MCS certification, the Kestrel wind turbine has also been conditionally registered for a scheme in the US with the North American Small Wind Certification Council. US government and state incentives to install wind energy in the US include tax credits, interest-free loans and FIT schemes.

The Kestrel e400nb 3.5 kW turbines are suitable for homes or small businesses, as they require less space than other installations.

Edited by: Chanel de Bruyn
© Reuse this Comment Guidelines (150 word limit)
 
 
 
 
 
 
 
 
Other Electricity News
The National Energy Regulator of South Africa (Nersa) will release a consultation paper in February next year outlining the possible regulatory framework for “distributed power generation” in South Africa, including how “prosumers” could be empowered to feed surplus...
BRENDAN WIDLAKE Stratus fault-tolerant servers ensure continuous availability of operational systems in critical processes
A computing platform to ensure the availability of critical processes and control systems is receiving increased attention in South Africa to ensure that the software driving new industrial systems, including automated and robotic processes, functions continuously,...
Despite apparent legitimate reasoning behind State-owned power utility Eskom’s electricity tariff increases, increased costs would undoubtedly hurt those in the lower portion of South Africa’s income distribution, consulting firm Frost & Sullivan Africa energy and...
Article contains comments
Article contains comments
More
 
 
Latest News
President Jacob Zuma would next month officially launch the Dube Tradeport, in Durban, as an industrial development zone (IDZ), the Department of Trade and Industry (DTI) announced on Friday. At the launch event, which was scheduled to take place on October 7, the...
JSE-listed York Timber Holdings on Friday said it expected its operating profit for the year ended June 30 to be between 25% and 30% lower than that of the prior year. As a result of the lower operating profit, combined with a 1% increase in the company’s biological...
Engineering solutions provider ELB Group has reported an 18% increase in turnover for the year, boosting overall income, from R1.9-billion in 2013, to R2.3-billion for the 12 months ended June 30. Describing this as “a satisfactory result, given the current difficult...
More
 
 
Recent Research Reports
Road and Rail 2014: A review of South Africa's road and rail infrastructure (PDF report)
Creamer Media’s Road and Rail 2014 report examines South Africa’s road and rail transport system, with particular focus on the size and state of the country’s road and rail network, the funding and maintenance of these respective networks, and the push to move road...
Real Economy Year Book 2014 (PDF Report)
This edition drills down into the performance and outlook for a variety of sectors, including automotive, construction, electricity, transport, steel, water, coal, gold, iron-ore and platinum.
Real Economy Insight: Automotive 2014 (PDF Report)
This four-page brief covers key developments in the automotive industry over the past 12 months, including an overview of South Africa’s automotive market, trade figures, production and the policies influencing the sector.
Real Economy Insight: Construction 2014 (PDF Report)
This five-page brief covers key developments in the construction industry over the past 12 months. It provides an overview of the sector and includes details of employment in the sector, infrastructure and municipal spending, as well as insight into companies’...
Real Economy Insight: Electricity 2014 (PDF Report)
This five-page brief covers key developments in the electricity industry over the past 12 months, including details of State-owned power utility Eskom’s generation activities, funding and tariffs, independent power producers and prospects for the sector.
Real Economy Insight: Road and Rail 2014 (PDF Report)
This six-page brief covers key developments in the road and rail industries over the past 12 months, including details of South Africa’s road and rail network and prospects for both sectors.
 
 
 
 
 
This Week's Magazine
MANUFACTURING CAPABILITY Reliable Transformers designs and manufactures dry-type and oil-filled power and distribution transformers up to 3.5 MVA
While Ekurhuleni-based transformer manufacturer Reliable Transformers currently designs, manufactures and tests its products according to the SANS 780 specifications for distribution transformers and other applicable transformer specifications, it is working towards...
GHAREEB SAAD Kaspersky Lab products contain strong heuristics engines that monitor suspicious file execution to detect attacks
Global endpoint security solutions company Kaspersky Lab has introduced new measures to prevent cyber criminals from accessing sensitive data, alongside its malware-signature and heuristic device analysis detection methods. Threats to mobile devices have increased...
MICHAEL FLETCHER Real-time information available to government when citizens use publicly funded Wi-Fi networks will enable it to communicate with citizens and provide services
To ensure uptake and a positive impact, Wireless Fidelity (Wi-Fi) networks in cities must be provided at schools, community centres and commercial centres to enable citizens and government to access information that will improve access to and delivery of services....
Eco-estate Monaghan Farm, located near Lanseria airport, north-west of Johannesburg, has taken a new approach to modern living and sustainability with its 517 ha development, dedicated to farm living.
Forklift and lift-truck distributor Goscor Lift Hi-Reach launched the Genie SX-180, the tallest self-propelled super boom in Africa, in Johannesburg last month. “As the official distributor of the well-known Genie range of equipment in Southern Africa, we are pleased...
 
 
 
 
 
 
 
 
 
Alert Close
Embed Code Close
content
Research Reports Close
Research Reports are a product of the
Research Channel Africa. Reports can be bought individually or you can gain full access to all reports as part of a Research Channel Africa subscription.
Find Out More Buy Report
 
 
Close
Engineering News
Completely Re-Engineered
Experience it now. Click here
*website to launch in a few weeks