Salient Technical Features of Kawas Waste to Energy Plant:
The waste to energy (WtE) plant shall be of global standard and shall use state of the art technology,
proven across globe, employing grate firing system and flue gas cleaning system. The WtE plant shall
be completely indoor, odorless and emission norm compliant. The plant shall have a clean, aesthetic
environment as well as noise within permissible limit. The plant shall involve enough automation to
prevent human exposure to messy areas during operation and maintenance (O&M) of the plant. The
plant shall have leachate and effluent treatment system to prevent discharge of harmful substance.
The waste reception hall, waste bunker/pit and the furnace shall remain under negative pressure so
that foul smell shall not escape from waste dumping area to the surroundings.
The peak capacity of the plant shall be designed to incinerate up to 265000 metric tons annually of
RDF/ combustible fraction having GCV of 2500 kcal/kg to convert it efficiently into power, assuming
330 days of plant operation. The average incineration capacity of the plant shall be 750 tonnes per
day with average GCV of 2500 kcal/kg. However, generator name plate rating shall be corresponding
to the incineration capacity of 600 tonnes per day with GCV of 2500 kcal/kg as this corresponds to the
minimum guaranteed contracted waste disposal capacity of 200000 tonnes annually assuming 330
days of plant operation in a year.
The plant shall be capable of handling usual variations in RDF due to change is waste input during the
course of time. The peak capacity of the plant should take care of seasonal surge in waste supply and
calorific value, for example in spring and autumn when lots of dry leaves may be the part of the waste.
The plant name plate rating shall not be less than 14.9 MW and plant overload capacity shall be at
least 15% higher than the name plate rating to take care of grid frequency response and sudden surge
in waste quantity and calorific value. The plant should be able to operate at its peak capacity
continuously when the need arises. Plant shall also be capable to supply steam for generating hot
water or chilled water or for industrial use. The extraction quantity shall be up to 60% of the steam
flowing upstream of the extraction point through internally controlled extraction to ensure high
efficiency with variation in demand of steam. However, the scope of bidder shall be limited to provide
steam at specified parameters at the terminal points and the equipment used for producing chilled/hot
water shall not be in the scope of the bidder. The plant shall use Air Cooled Condenser (ACC) designed
corresponding to full capacity of power generation considering extraction steam for external
heating/cooling to be closed.
The complete scope of the proposal shall include Design, Engineering, Manufacture, Supply,
Construction, Erection, Testing, Commissioning works including Operation & maintenance of the plant
for an initial period of 2 years for the EPC Package for Waste to Energy Project, having two identical
incineration, steam generation and flue gas cleaning lines, shall be on the basis of single point
responsibility, completely covering the equipment and systems required for successful commissioning
and operation of the waste to energy plant.
