Complex sentence: TVA bought TEPCO's assets for for $79 million, while the city of Nashville took over TEPCO's power generation and distribution network and created the Electric Power Board of Nashville to run it.
Split into simpler sentences: TVA bought TEPCO's assets for for $79 million. After the purchase, the city of Nashville took over TEPCO's power generation and distribution network and created the Electric Power Board of Nashville to run it.