Introduction: 

This project is known as the Chhanua G2P Project that will be based on the installation of 2 x 500MW GE 6F.03 CCGT Floating Power Plants (FPPs)in Bangladesh. It is proposed to install a 1,000 MW floating power plant at a site at Chhanua on the Kathkhali Khal (canal), a tributary that empties into the Kutubdia Channel. It is understood that no existing infrastructure of any nature exists in the area and that access by road is very limited. This situation presents several challenges to the project for its development, construction, installation and operation.

Inspection of this site will be undertaken having performed some very preliminary work on a site arrangement for the initial 1,000 MW installation, such that it can be visualized more exactly when on location. Considering the remoteness of the site and the lack of access roads sufficient to support heavy trucks and equipment transport for development of the site the only viable means of access for this purpose will be by water. It is thus presumed that all equipment, construction machinery, materials and labor will necessarily be transported by barges and boats. This will include machinery and equipment such as cranes, pile drivers, electrical generators, dredgers, draglines, etc. plus support facilities for labor and personnel and associated services.

While the FPPs will be constructed at a shipyard remote from the site, work will need to be simultaneously ongoing to construct a stilling basin and associated infrastructure to receive and install them upon delivery. How this will be undertaken needs to be carefully thought out considering water depths required to provide access from the sea for tugs and barges to deliver materials and supplies, a dock and large lay down areas for storage, power distribution, lighting, man camp and finally sufficient channel width to deliver the FPPs to their operational location in the basin and its eventual protection.

Inspection of the site will consider these factors as well as issues such as rights of way for the gas pipeline and its connection point, rights of way for the high voltage transmission lines, plant cooling system determination considering water quality and temperatures and the method of intake to the FPPs and its discharge, both for the initial 1,000 MW installation and any future expansion. 

Information & Data Needs: 

• Any bathymetric data for the adjacent river and channel to the
• Geotechnical data for the site (coring results, sediment classification, )
• Aerial photography of site over a range of years (decades if possible); these photographs are used in order to determine erosion and deposition of
• Tidal ranges, current velocities and seasonal level/depth data of the Should include any information available on canal flooding as a result of upstream floods.
• Seismic data for the Chittagong region; Accelerograms of previous earthquakes are preferred but peak acceleration values at the site location can suffice.
• Environmental data for the area (wind, wave & current offshore) including a 100 year storm (monsoon) Historical storm surge that has inundated the area in the past.
• Seasonal precipitation and temperature data
• Seasonal water temperatures
• Permitting requirements; environmental, operational and any other permits
• Gas pipeline specification; pressure and design capacity and location of connection

For Construction Purposes: 

• A meeting with a substantial local civil works contractor will be helpful for discussions on a construction plan, functional costing information such as dredging, pile driving, land stabilization, manhour rates, etc.
• Any available geotechnical data for the area to determine piling requirements. If none exists, then a geotechnical firm must perform this study prior to site
• It is considered advisable to visit the port at Chittagong and port authorities to discuss importation and/or transshipment of materials, machinery and equipment and load out of barges for transport to site.
• Substantial dredging of the channel from the sea and adjacent waters around the site is It should be determined how this will be achieved in terms of equipment and disposal of spoils, plus any permitting required.
• A determination of available local equipment should be made for dredging, spoils disposal, deck barges, tugs, personnel transfer vessels, and their associated costs
• It would be helpful to produce a preliminary plan of the site for its development and construction program, including early activities necessary to receive and store machinery and materials, including a dock with stabilized areas to support cranes and discharge of barge cargoes and its storage, personnel, security fencing, power generation, etc. The possibility of sourcing and locating an accommodation barge might be considered in

order to have a continuous labor force at the site prior to construction of a man camp or as a permanent facility during the entire project implementation.

May 22, 2018