ABSA Towers are located in the Troye Street in downtown Johannesburg, where it generates its own electricity from low pressure gas in the West Tower. It is located on the ABSA campus which compromises of nine buildings. It is used during peak of 6am to 10pm with Eskom filling in for the remainder of the time. The energy centre has the capability to power the entire Absa Campus. The campus becomes independent of Eskom's grid as demands peaks. The energy centre has four gas powered engines generating a combined 11.2MW of power. Each of the four GE Jenbacher J620 gas generators is enabled to peak at 2.8MW. Diesel units are on standby to generate a further 6MW during an emergency.