http://www.engineeringnews.co.za
  SEARCH
Login
R/€ = 13.04Change: 0.02
R/$ = 11.84Change: -0.05
Au 1199.24 $/ozChange: -3.19
Pt 1183.00 $/ozChange: -1.00
 
 
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 Letters 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|Design|Eveready|Kestrel|Renewable Energy|Renewable-Energy|Safety|Testing|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|Operations
Port||Design|Renewable Energy|Renewable-Energy|Safety|Testing|Turbines|Water|||Building|Energy|Products|Services|Wind Energy|Power|Turbines|Water|Operations
johannesburg|port|port-elizabeth|design|eveready|kestrel|renewable-energy|renewable-energy-company|safety|testing|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|operations
© 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
Updated 22 minutes ago Private equity will play a key role in developing Africa given the massive needs for capital on the continent, says Blackstone Group, which is focusing on infrastructure projects involving power generation and transmission. CEO Steve Schwarzman said he would continue...
Eskom CEO Tshediso Matona
Updated 1 hour 9 minutes ago South Africa's cash-strapped power utility Eskom may sell some of its assets to raise capital as it scrambles to light up Africa's most advanced economy, the company's chief executive said on Thursday. Eskom, which provides virtually all of South Africa's power,...
JOAN MACNAUGHTON Many countries were also struggling to balance the energy trilemma of energy security, energy equity and environmental sustainability
Sub-Saharan Africa is still faced with the challenge of providing citizens access to electricity and an additional $450-billion will need to be invested to ensure that people in urban areas have access to electricity by 2040.
More
 
 
Latest News
Updated 22 minutes ago Private equity will play a key role in developing Africa given the massive needs for capital on the continent, says Blackstone Group, which is focusing on infrastructure projects involving power generation and transmission. CEO Steve Schwarzman said he would continue...
Updated 28 minutes ago Egypt expects a planned economic zone near the Suez Canal to eventually make up about a third of Egypt's economy, the country's investment minister said on Thursday. Egypt plans to build an international industrial and logistics hub near the canal to attract foreign...
Updated 51 minutes ago South Africa has to secure the future of the local petroleum industry through policy protection, to prevent the market from being flooded by clean fuels imports. The deferment of a clean fuels policy last year had opened a gap for importers and the urgency to...
More
 
 
Recent Research Reports
Construction 2015: A review of South Africa’s construction sector
While the construction sector remains a sizeable economic contributor and employment provider, it has been in a slump for the past seven years, not being able to recover to the growth levels in the build-up to the 2010 FIFA World Cup – between 2004 and 2007 – when...
Liquid Fuels 2014: A review of South Africa's liquid fuels sector
Despite South Africa’s oil and gas deposits, its current fuel-refining capacity is insufficient to meet local demand for liquid fuel products, and the shortfall is being met through imported refined products. In recent years, the country has become increasingly...
Water 2014: A review of South Africa's water sector
As the world’s most valuable resource, water and its preservation are becoming increasingly important, with various industries noticing the scarcity of this resource. Without water, industrial activities and agricultural activities cannot take place – directly...
Defence 2014: A review of South Africa's defence industry
South Africa’s defence industry has sophisticated manufacturing capabilities and it has been at the forefront of many significant defence developments locally and internationally. The industry has a high level of State involvement in terms of acquisitions and...
Road and Rail 2014: A review of South Africa's road and rail infrastructure
The state of a country’s transport infrastructure is a key determinant of the performance and growth of its economy, as well as of the social and economic opportunities available to that country’s population. South Africa is investing substantially in its transport...
Real Economy Year Book 2014
There have been some improvements in global economic conditions over the past few months, with the US set to grow at a better pace in 2014 than has been the case in the years following the global economic crisis. Few economic commentators are anticipating a hard...
 
 
 
 
 
This Week's Magazine
The World Bank, the European Union, the African Development Bank (AfDB) and the government of Sweden have agreed to provide Zimbabwe and Zambia with $294-million for the repair of structural deformations on the Kariba dam wall and avert the possible collapse of the...
Global Electricity Initiative executive chairperson Philippe Joubert
Executive chairperson of the Global Electricity Initiative (GEI) Philippe Joubert says energy utilities globally, together with the business community more generally, have come to terms with the science of climate change, particularly as extreme weather events begin...
JAMES TEMPLETON Emira’s operational performance is the best it has been in a long time
JSE-listed Emira Property Fund reported distribution growth per participatory interest (PI) of 9% for the six months ended December 31, 2014.
JOAN MACNAUGHTON Many countries were also struggling to balance the energy trilemma of energy security, energy equity and environmental sustainability
Sub-Saharan Africa is still faced with the challenge of providing citizens access to electricity and an additional $450-billion will need to be invested to ensure that people in urban areas have access to electricity by 2040.
ABE THELA Cuban engineering skills are not recognised by the Engineering Council of South Africa
Consulting Engineers South Africa (Cesa) last month said it was dismayed that the Department of Water and Sanitation (DWS) was seconding 35 Cuban engineers on a two-year contract to share their expertise with South African engineers in the water sector.
 
 
 
 
 
 
 
 
 
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
Subscribe Now for $96 Close
Subscribe Now for $96