Economic analysis for HVDC transmission system in Pakistan

Abstract

Electricity is being generated from mega sized power plants based on conventional and non-conventional sources of energy, located in remote areas. Two possible choices are high voltage dc (HVDC) and high voltage ac (HVAC) to transmit bulk power from the remote generation sites to the load centers. This paper aims to present techno-economic comparison of both transmission systems for 4000MW power plants installed 878km far from load centers. Discounted cash flow (DCF) technique is employed for technoeconomic comparison. A soft mechanism is devised in Excel/Microsoft to study the vision in the discrepancy of input factors. Keywords: Economic comparison, HVAC, VSC based HVDC, Electrical power transmission system, Discounted cash flow analysis