Environmental impact assessment report construction of powerhouse and distribution network at M.Kolhufushi Island

Abstract

This Environmental Impact Assessment report is an evaluation of the potential environmental, socioeconomic and natural impacts caused during the construction of powerhouse and distribution network at Kolhufushi Island. This Environmental Impact Assessment report is prepared in accordance with Environmental Impact Assessment regulation. The report has looked at the impacts that might cause during pre construction and construction phase of the powerhouse and impact that might cause after commissioning of the power system. The report also includes a mitigation plan for the impacts identified. The proposed Project will augment power generating capacity and improve electricity distribution in Kolhufushi Island. The added generating capacity of 650 kW and the expansion and rehabilitation of the distribution system will enable to relieve the present electricity shortage and meet the anticipated increase in electricity demand for next 10 year. The Project will enhance the quality of supply through greater reliability and improve efficiency through the reduction of distribution losses. Project will reduce the emission and noise pollution as the new power system will be equipped with modern technologies. Pollution caused by smoke from the existing powerhouse will be made negligible as the new powerhouse will be located away from the community. As always negative impacts cannot be avoided on these kinds of projects. In this project also some of the negative impacts will occur during site clearing, excavation and dewatering. The adverse impacts from overall project includes water contamination, generation of contraction waste, Air, noise pollution and loss of vegetation and loosing of habitat to fauna community. Having provision to reliable electricity to the island community, there would be more job opportunities and electricity excess to everybody will bring social happiness and development. The proposed powerhouse of 650kW under the Project is not of sufficient size to pose any significant threat to the environment. The proposed power station site is located at the south-eastern corner of the island to minimize the effect of smoke emission as the prevailing wind across the island is either in a north-easterly or south-westerly direction. The proposed site faces the sea on one side and flanked on the other three sides by vacant area. There is therefore, an effective buffer zone between the powerhouse and the adjoining properties and the presence of foliage should serve as a natural sound absorbing barrier. It is recommended to include features to minimize nuisance from noise, vibration, oil spillage and exhaust emission while construction of the power generating facility.