May 17, 2013
Emissions monitoring system ensures supply of electricityBack
Africa|Bytes Systems Integration|CoAL|Engineering|Environment|Eskom|Generators|Health|Invensys Operations Management|Invensys Wonderware|Microsoft|Power|System|Systems|Technology|Africa|South Africa|Electricity Supply|Emissions Monitoring System|Equipment|Information Technology|Systems|Environmental|Deon Van Aardt|Kristy Ross|Operations|Information Technology
© Reuse this
As a result, engineering and information technology company Invensys Operations Management and information technology provider Bytes Systems Integration helped Eskom implement a comprehensive emissions monitoring system to better supervise and control its emissions.
The emissions monitoring system is based on software that was supplied by Invensys Wonderware in 2011 and currently forms part of the integrated generation control centre (IGCC) that was provided to Eskom in 2010.
Every power station has an emissions licence with which it needs to comply. This ensures that the environment and health of people in the vicinity of power stations are not affected negatively. The emissions licence specifies two limits – a normal operating limit, which states that emissions must be below this limit 96% of the time – and a cap limit, which emissions must never exceed.
Eskom senior consultant Kristy Ross says control room operators at power stations must be constantly aware of potential problems which might result in emissions exceeding the set legal limits.
“If such an event occurs, it might be necessary to exercise load loss. This will have a ripple effect, as other power stations will be required to pick up the slack by ramping up production. Given the scope of the problem and Eskom’s nationwide footprint of 13 operational coal-fired power stations, it was decided that emissions status should be centrally monitored and controlled in real time,” Ross says.
The system runs on a Microsoft platform and collects data, including emissions levels, from all Eskom’s power plants, after which it is sent to a central control room at the utility’s Megawatt Park head office, in Gauteng.
Invensys technical director Deon van Aardt says Eskom now has a central platform that provides an overall view of its fleet of generators.
The emissions monitoring system also helps stabilise the electricity grid and reduce downtime of generators, as it provides an early warning in the event of emissions exceeding the legal limits.
Van Aardt says Eskom has the ability to connect to installed equipment at each generating stack, which monitors the ash emissions in real time.
This information is then captured by a database, which the utility can use to draw a graph of the emissions. This graph is then logged into an operational historian that captures the data at a high-rate on plant level. The ArchestrA System Platform, which forms part of the main system, collects all the information and provides Web-based visuali- sation for the IGCC, which can be accessed using Internet Explorer.
At the IGCC, Eskom has set up dashboards and reports. The dashboards show a live view of the operations and provide the emissions levels. From there, Eskom can draw reports to make an analysis and strategic decisions, take corrective action or shut down the generating plants, if needed.
“You have to get the right information in the right context and, by having a mechanism that enables someone to rapidly and easily collect plant information and put it in the right context, operations can run more efficiently. In this case, it is environmental data being collected to control emissions, so Eskom can make deci- sions quickly if needed,” Van Aardt says.
The emissions information can also be accessed from mobile devices, while the monitoring system also provides a warning, should emissions begin to exceed the legal limit. This enables Eskom to quickly take preventative measures.
Edited by: Tracy Hancock© Reuse this
Creamer Media Deputy Editor Online
To subscribe email email@example.com or click here
To advertise email firstname.lastname@example.org or click here
Other Eskom News
Recent Research Reports
Construction 2016: A review of South Africa's construction industry (PDF Report)
Creamer Media’s Construction 2016 Report examines South Africa’s construction industry over the past 12 months. The report provides insight into the business environment; key participants; local demand; geographic diversification; corporate activity; black economic...
Energy Roundup – February 2016 (PDF Report)
The February 2016 roundup covers activities across South Africa for December 2015 and January 2016 and includes details of a Government Gazette notice that confirms Cabinet’s decision to move ahead with the 9 600 MW nuclear procurement programme; State-owned power...
Energy Roundup - December 2015 (PDF Report)
The December 2015 roundup includes details of State-owned utility Eskom’s application to claw back R22.8-billion; South Africa’s ranking as an investment destination for renewable energy; and a nuclear expert’s thoughts on reactor designs for South Africa’s nuclear...
Water 2015: A review of South Africa's water sector (PDF Report)
Creamer Media’s Water 2015 Report considers the aforementioned issues, not only in the South African context but also in the African and global context in terms of supply and demand, water stress and insecurity, and access to water and sanitation, besides others.
Input Sector Review: Pumps 2015 (PDF Report)
Creamer Media’s 2015 Input Sector Review on Pumps provides an overview of South Africa’s pumps industry with particular focus on pump manufacture and supply, aftermarket services, marketing strategies, local and export demand, imports, sector support, investment...
Liquid Fuels 2015: A review of South Africa's liquid fuels sector (PDF Report)
Creamer Media’s Liquid Fuels 2015 Report examines these issues in the context of South Africa’s business environment; oil and gas exploration; fuel pricing; the development of the country’s biofuels industry; the logistics of transporting liquid fuels; and...
This Week's Magazine
Lifting, transporting, installing and ballasting solutions provider Ale has expanded its global fleet of trailers and invested in the latest range of widening trailers that can be mechanically widened from 3 m to the desired width for any project. Ale ordered 48 axle...
The market for the BMW 7 Series in South Africa differs quite significantly from the rest of the world. China, the US and the Middle East almost exclusively buy the long-wheel-base version, using the German manufacturer’s luxury high-end sedan as a chaffeur-driven...
January new-vehicle sales fell by 6.9%, to 48 615 units, compared with the same month last year. Statistics released by the Department of Trade and Industry show that the domestic new passenger-car market declined by 6.1%, to 34 936 units, compared with 12 months ago.
Information technology (IT) equipment and infrastructure multinational Dell is providing open infrastructure systems for clients so that they can use any systems, including innovative new systems, that suit their business needs, says Dell Europe, Middle East and...
South Africa’s State-owned defence industrial group, Denel, has set up another international partnership, based in Hong Kong. This new subsidiary is Denel Asia and it is a joint venture (JV) with South African private sector company VR Laser.