The Tennessee Valley Authority (TVA) Cancelled Its Request For Voluntary Energy Conservation After Reaching A Record Peak Demand Of 35,319 Megawatts At 8 A.M. Wednesday, Setting A New High In TVA’s 91-Year History. The Demand Occurred During A System Temperature Of 11 Degrees. Tva Reported That Its Power System Remained Stable Throughout The Event. TVA Is Investing Nearly $16 Billion To Add 3,500 Megawatts Of Additional Generation Capacity.