Jenbacher gas engines La Mercy and Mariannhill landfill sites South Africa Jenbach use of landfill gas in Jenbacher gas engines Near the city of Durban, two containerized Jenbacher gen-sets with a total electrical output of 1,590 kW generate electricity out of landfill methane gas. Instead of flaring the collected landfill methane, the gas is fueled into the Jenbacher gas engines, providing much-needed electricity to the municipal grid. This was the first landfill gas-to-energy project in South Africa and the country’s first registered landfill project under the Clean Development Mechanism (CDM). The two Jenbacher units at the La Mercy and Mariannhill landfill sites – one JGC 312 GS-L.L. and one JGC 320 GS-L.L – as well as the gas extraction equipment were installed by Envitech Solutions (Pty) Ltd of Benoni. Both power plants are owned by Durban Solid Waste (DSW), the local operator of the Metropolitan Municipality’s solid waste disposal. In addition to delivering power, utilizing the landfill gas for power generation contributes to the reduc- tion of environmental pollution and health problems associated with the escaping landfill gas. In this context, one important criterion for the project is the funds generated from the sale of carbon credits, which will make the project economically viable and will be used in part for community upgrading. GE Energy

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Jenbacher gas enginesLa Mercy and Mariannhill landfill sitesSouth Africa

Jenbach

use of landfill gas in Jenbacher gas engines Near the city of Durban, two containerized Jenbacher gen-sets with a total electrical output of 1,590 kW generate electricity out of landfill methane gas. Instead of flaring the collected landfill methane, the gas is fueled into the Jenbacher gas engines, providing much-needed electricity to the municipal grid. This was the first landfill gas-to-energy project in South Africa and the country’s first registered landfill project under the Clean Development Mechanism (CDM).

The two Jenbacher units at the La Mercy and Mariannhill landfill sites – one JGC 312 GS-L.L. and one JGC 320 GS-L.L – as well as the gas extraction equipment were installed by Envitech Solutions (Pty) Ltd of Benoni. Both power plants are owned by Durban Solid Waste (DSW), the local operator of the Metropolitan Municipality’s solid waste disposal.

In addition to delivering power, utilizing the landfill gas for power generation contributes to the reduc-tion of environmental pollution and health problems associated with the escaping landfill gas. In this context, one important criterion for the project is the funds generated from the sale of carbon credits, which will make the project economically viable and will be used in part for community upgrading.

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GE Energy Jenbacher gas engines Austria (Headquarters) 6200 Jenbach T +43 5244 600-0 F +43 5244 600-527 [email protected] www.gejenbacher.com

customer advantages- Independent power supply in the form of electricity supplied to the public grid - Funds from sale of carbon credits used in part for community upgrades- Improvement of local air and groundwater quality

plant features- Units controlled by DIA.NE® engine management system and module management system- Minimum NOx emissions through the Jenbacher patented LEANOX® lean mixture combustion system - Minimization of the plant’s footprint by standard ISO containerized Jenbacher engine packages- Tailored solution to reduce sound levels to meet local requirements

key technical data – La MercyNumber of units and engine type 1 x JGC 312 GS-L.L.Gas type Landfill gasElectrical ouput 526 kWEfficiency 39.1%

key technical data –MariannhillNumber of units and engine type 1 x JGC 320 GS-L.LGas type Landfill gasElectrical ouput 1,064 kWEfficiency 40.8%

Operator Envitech Solutions (Pty) Ltd of Benoni, South AfricaCommissioning December 2006

GE ’s Jenbacher gas engine divisionGE’s Jenbacher gas engine division is one of the world’s leading manufacturers of gas-fueled reciproca-ting engines, packaged generator sets and cogeneration units for power generation. It is one of the only companies in the world focusing exclusively on gas engine technology.

GE’s Jenbacher gas engines range in power from 0.25 to 3 MW and run on either natural gas or a variety of other gases (e.g., biogas, landfill gas, coal mine gas, sewage gas, combustible industrial waste gases). GE’s Jenbacher product team has its headquarters, production facilities, and 1,200 of its more than 1,500 worldwide employees in Jenbach, Austria.

GE Energy