An Upgrade By The Tennessee Valley Authority To Its South Holston Dam’s Power House Is Set To Be Completed By The End Of October. The 30 Million Dollar Project Called For The Hydro Turbine That Churns Water Into Electricity Is Being Replaced And The Structure Is Be Reconstructed In Order To Support The 45-Thousand Pound Replacement. TVA Spokesman David Rowland Said The More Efficient The Hydroelectric System Is, The More Needed Power TVA Can Produce From Hydropower Each Year, Which Factor Into Fuel Cost Adjustment That In Turn Effect Rates. In Other Words, It Could Mean Cheaper Electric Bills. The Project Is Expected To Be Completed By October 31st.