Seven more T@W Good Practice Case Studies Published
30 March 2007

A further seven T@W Good Practice Case Studies were added to the website at the end of March 2007, following the publication of the first five in February. The existing electricity generation project from India was updated and three more case studies from India and four from Thailand were added. Two of the case studies from India and one from Thailand concern electricity from biomass, while the others describe a small hydropower plant in India and two biogas projects and a biomass cogeneration project in Thailand.

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Download GP12 (64 Kb PDF) 30-Mar-2007

The Korat Waste to Energy Project is an anaerobic digestion project, treating wastewater from the starch industry, at the Sanguan Wongse Industries (SWI) facility in Nakhon Ratchasima Province, Thailand. The Anaerobic Baffled Reactor (ABR) is used to remove the organic material in the wastewater, thus reducing the Chemical Oxygen Demand (COD) and subsequent fugitive CH₄ emissions from existing open lagoon. Produced
biogas is used in the SWI facility to substitute fuel oil. Excess biogas is fed to gas engine-generators, 3 MW capacity to produce electricity, and displace grid fed electricity. GHG emission reduction from the project activities are approximately 314,959 tonnes CO₂ equivalent/year.

Download GP11 (132 Kb PDF) 30-Mar-2007

The project is Biomass Cogeneration plant using agricultural residue, e.g., bagasse (biomass residue from sugar cane production) as primary fuel. Other biomass residue such as cane leaves or rice husk may be used to compensate for any shortfall in sugarcane throughput. Dan Chang Bio-Energy (DCB) Cogeneration project comprises the capacity expansion of the existing biomass cogeneration system located next to the sugar mill of Mitr Phol Sugar Corporation (MPSC) in Dan Chang, Suphan Buri province, Thailand.
    The proposed project will enable DCB to increase its electricity export to the grid from 6 MW on a non-firm year-on-year contract to 27 MW on a 21 year firm contract. DCB expects to export net electricity to grid approximately 195,129 MWh per year which results in GHG emission reduction approximately 92,177 tonnes CO₂ equivalent/year.

Download GP10 (113 Kb PDF) 30-Mar-2007

The project activity is the introduction of anaerobic wastewater treatment with biogas collection and utilisation in Thai palm oil industry. Up to now, traditional anaerobic open pond systems are commonly applied in Thai palm oil industry. The tank-reactor technology commonly applied in industrialised countries has been adapted for Thai conditions – the result is the A-CSTR (“Appropriate - Complete Stirred Tank Reactor”) – in cooperation with the University of Wageningen, Netherlands. Thus, the envisaged project uses state of the art technology that results in a significantly better performance than commonly used technologies in palm oil industry in Thailand.
    Biogas generated from project activity approximately 20,700 m³ of biogas per day will be used for replacement of fuel oil and oil palm shell which is currently used to generate steam in Refinery plant.
     The “Chumporn applied biogas technology for advanced waste water management” project will reduce GHG-emissions in two following ways, which has total GHG emission reduction of 45,749 tons CO₂-equivalent per year:

1. The reduction of methane emissions released to the atmosphere by the existing anaerobic open pond treatment system, and
2. The reduction of CO₂ emissions resulting from the burning of fossil fuels within the production process of the facility.

Download GP9 (401 Kb PDF) 30-Mar-2007

The project is the rice husk fired power plant in Pichit province, Thailand, with approximately 22 MW-gross and 20 MW net capacities. Generated electricity will be sold through a 25-year power purchase agreement (PPA), firm-contract with the Electricity Generating Authority of Thailand (EGAT). AT Biopower (ATB) will generate electricity 147,627 MWh-gross annually, of which 132,864 MWh-net will be exported to EGAT. GHG emission reduction shall be come from the amount of electricity substitute to Thailand's grid electricity generation and amount of rice husk used in the project instead of dispose it in uncontrolled conditions (decay or burned in open air).

Download GP8 (179 Kb PDF) 29-Mar-2007

Vajra small hydro project (SHP) is a run-of-the-river small power project, where water from the river is diverted through the power house to generate renewable power. Whereas Chaskaman SHP is a dam toe project set up on an existing dam. The water released through the canal for agriculture is routed through the power house to generate electricity. Small hydro power projects of Vindhyachal Hydro Power Ltd (VHPL) are constructed in the existing water bodies i.e. there was no water reservoir constructed in the project activity. The project sites Vajra and Chaskaman are located in Thane and Pune district of Maharashtra state respectively. Together these projects have an installed capacity of 6 MW (3 MW each).
    The project activity is generating electricity and wheeling it to INOX air
products limited through Maharashtra state electricity grid. The project proponent has signed power wheeling agreement with Maharashtra State Electricity Board (MSEB) and Power Purchase Agreement (PPA) with INOX air products limited.

Download GP7 (39 Kb PDF) 29-Mar-2007

The project activity is a renewable energy power project for power generation and export of clean power to Transmission Corporation of Andhra Pradesh (APTRANSCO). This generation of power will substitute the power generated and fed to conventional fossil fuels dominated grid.
   Since this project activity utilizes renewable energy source, it will positively contribute towards the reduction in (demand) use of finite natural resource like coal/gas/oil, minimizing depletion or else increasing its availability to other important processes.
    The primary fuels proposed for the power plant are Rice Husk, Juliflora and Bagasse. The fuel requirement for 100% capacity is 26,850 tonnes/year of rice husk, 21,470 tonnes/year of juliflora and 23,250 tonnes/year of bagasse. The fuels to be used are available in abundance within radii of 25 km from the plant site. Other fuels like cotton stalk, blackgram stalk and groundnut shell are also available abundantly and will also be considered as alternative fuels. Vizianagaram district is one of the prominent agriculturally and industrially developed districts of Andhra Pradesh.

Download GP6 (45 Kb PDF) 29-Mar-2007

The project activity is a renewable energy power project for power generation and export of clean power to third party sales which displaces equivalent amount of electricity drawl from Transmission Corporation of Andhra Pradesh (APTRANSCO).
    This generation of power will substitute the power generated and fed to
conventional fossil fuels dominated grid. Indian economy is highly dependent on "Coal" as fuel to generate energy and for production processes. Thermal power plants are the major consumers of coal in India and yet the basic electricity needs of a large section of population are not being met. This results in excessive demands for electricity and place immense stress on the environment. Changing coal consumption patterns will require a multi-pronged strategy focusing on demand, reducing wastage of energy and the optimum use of Renewable Energy (RE) sources.
   Since this project activity utilizes renewable energy source, it will
positively contribute towards the reduction in (demand) use of finite natural
resource like coal/gas/oil, minimizing depletion or else increasing its availability to other important processes.

Download GP5 (50 Kb PDF) 9-Feb-2007 updated 29-Mar-2007

This project activity involves generation of electricity from waste gases from existing iron manufacturing facilities of Kalyani Steels Limited (KSL). The generated electricity is used for captive consumption within the industrial facility thereby partially displacing electricity that would have otherwise been purchased from the grid or generated as captive power using fossil fuel.