Part of the reason Houston electricity is cheap is because a lot of power generation is from natural gas https://www.gridinfo.com/texas/houston https://www.grid

Part of the reason Houston electricity is cheap is because a lot of power generation is from natural gas https://www.gridinfo.com/texas/houston https://www.gridinfo.com/texas/houston, and Houston area is also a trading hub and hosts some of the largest nat gas refineries in the US. TDU charges are relatively fixed for utility providers in Texas, so transmission infrastructure tends to have less impact on rates than supply and trading.