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Company to deliver 1.2 MW biogas power generation plant


Engineering News

By Chantelle Kotzé

April 20th, 2012

South African electric equipment sup- plier Zest WEG Group, through its subsidiary company, Zest Energy, and in collaboration with an engineering, procurement and construction management contractor, has been awarded a contract by water and sanitation services provider Johannesburg Water for the delivery of a 1.2 MW biogas power generation plant.

“We have noticed a trend towards using biogas to generate power, and are proud to confirm our first biogas project with Johan-nesburg Water,” says Zest WEG Group sales and marketing director Gary Daines.

The contract, awarded in November last year, entails the supply of modular gas engines, as well as an integrated electrical system, which takes clean methane gas generated from the digesters within the water treatment facility and transforms it into electrical power.

The plant will initially generate 1.2 MW of power, but has the potential to produce increased power outputs, depending on the future availability of biogas. The plant will supplement the water utility’s current power supply and reduce its overall running costs.

“This is the first project of its kind and magnitude in South Africa and we hope that the successful commissioning of this project will lead to other munici- palities and water treatment facilities gaining confidence to support and implement this type of electricity generation project at their facilities,” states Daines.

He adds that an additional benefit for the company is that the project is based on a payback structure that allows for the capital costs of the project to be, in essence, paid back to the company over time, as it supplements its own power needs.

The company reports that it is currently installing the modular gas units that will be commissioned at the end of July.

Meanwhile, the majority shareholder in Zest WEG Group, Brazilian electrical equipment manufacturer WEG, has introduced steam turbines produced by its Brazilian technology partners to the South African market. This is as a result of similar power generation opportunities, already identified and brought to fruition in Brazil, being released in South Africa’s sugar and pulp and paper industries.

“We want to bring cogeneration to the South African market through industries that have excess steam for power generation, which can be generated into power and used to supplement electricity supply or to sell back to the grid,” explains Daines.

The company hopes to break into the independent power producer (IPP) market as a technology partner and supply these steam turbines to renewable- energy projects.

“Since IPPs have gained momentum, there are numerous opportunities to generate power from an array of sources, such as gas, hydro, wind and solar, and we should see IPPs develop at an incredible rate,” says Daines.

The company believes that it can gain valuable knowledge of green power technology from its Brazilian shareholder, WEG, as 85% of Brazil’s power is clean power produced through hydroelectric technologies.

Zest WEG Group says it is dedicated to skills training and has skills programmes in place as well as its own training facility and a dedicated training officer.

It is especially focused on skills training in maintenance and efficient long-term operations.

The company feels that there is a need to contribute to the skills within the country’s resource base and maintains that, if other organisations followed the same strategy and committed themselves to training small segments of the resource base, the skills shortage could be dealt with, Daines states.

Wärtsilä to expand two power plants in Senegal


Two of the three Wärtsilä 16V32 diesel alterna...
Image via Wikipedia

PRESS RELEASE Reuters * is not responsible for the content in this press release. 

Tue Sep 27, 2011 3:01am EDT

Wärtsilä Corporation, Trade & Technical press release, 27 September 2011

Wärtsilä, a leading supplier of flexible power plants and services to the global power generation market, has been awarded the contracts to expand two existing power plants, delivered by Wärtsilä, in Senegal. These contracts, valued at nearly EUR 60 million, were signed with Senelec, the country’s public utility company.

Wärtsilä will supply turnkey extension solutions to two existing power plants. The Bel Air power plant was built in 2005 and the Kahone plant in 2006. Both facilities are powered by 18 cylinder Wärtsilä 46 engines, and are maintained and operated by Wärtsilä under a 15 year agreement signed in 2006. The extension projects will provide two additional 18 cylinder Wärtsilä 46 engines to each site, which will increase output with 34MW to reach a total of 102MW on each site.

“The main focus in all our discussions with the Senegalese authorities was the urgency of the situation. There was enormous pressure to come up with a solution that could quickly and efficiently alleviate the challenges relating to the nation’s rapidly increasing need for power. Senelec is already very familiar with the advantages of Wärtsilä’s proven technology and Smart Power Generation benefits. The reason for Wärtsilä being awarded this contract was our ability to engineer, deliver and construct these extensions to two power plants in just 12 months,” says Tony van Velzen, Regional Director, Africa, Wärtsilä Power Plants.

Wärtsilä has a leading position in supplying flexible power plants to West Africa. In Senegal alone, Wärtsilä has already supplied 14 power plants with a combined electrical output of more than 220MW.

Wärtsilä West Africa is headquartered in Dakar and also has facilities in Conakry, Guinea and Lomé, Togo. Altogether 125 persons are employed to serve customers throughout the region. Approximately half of these are dedicated to supplying Operations and Maintenance services that ensure the contracted power plants are run with maximum efficiency.

Smart Power Generation

Wärtsilä has pioneered a Smart Power Generation approach to meeting the future needs of the global energy market. In order to provide a reliable and secure delivery of electricity and to balance supply with demand, flexibility in fuel choice and operational requirements is essential. Wärtsilä is a market leader in providing flexible, efficient, and dynamic power generating capacity.

As at the end of 2010, Wärtsilä had delivered 4500 power plants to 168 countries, providing a total of over 47 GW of energy capacity.

Link to picture of Kahone Power Plant in Senegal

Read more:
Wärtsilä oil power plants
Oil engines at Wärtsilä

For further information please contact:

Tony van Velzen

Regional Director, Africa
Wärtsilä Power Plants
Tel: +31 6 5345 2008
tony.vanvelzen@wartsila.com

Mirja-Maija Santala
Media Manager
Wärtsilä Corporation
Tel. +358 (0)400 793 827
mirja-maija.santala@wartsila.com

Wärtsilä in brief:
Wärtsilä is a global leader in complete lifecycle power solutions for the marine and energy markets. By emphasising technological innovation and total efficiency, Wärtsilä maximises the environmental and economic performance of the vessels and power plants of its customers. In 2010, Wärtsilä’s net sales totalled EUR 4.6 billion with more than 17,500 employees. The company has operations in 160 locations in 70 countries around the world. Wärtsilä is listed on the NASDAQ OMX Helsinki, Finland.


This announcement is distributed by Thomson Reuterson behalf of Thomson Reuters clients.The owner of this announcement warrants that:
(i) the releases contained herein are protected by copyright and other applicable laws; and
(ii) they are solely responsible for the content, accuracy and originality of the
information contained therein.Source: Wärtsilä Oyj Abp via Thomson Reuters ONE

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