Southern African energy development company Tlou Energy has awarded tenders for the construction of transmission lines and substations to connect the coal-bed methane Lesedi power project to the Botswana national electricity grid at Serowe, the company said on April 14. Botswana electrical engineering company Zismo Engineering was awarded the tender to build the 100 km overhead line, while construction and mining contract multinational Murray & Roberts subsidiary OptiPower will build the substations at Lesedi and Serowe.