Your $200 bill would go to $250 with SuHydro.   The bonds would not be paid off for 50 years.  Bradley Lake hydro has worked sort of OK.  But it cannot be run to full power; the Intertie won't take it without expensive upgrades.  Same for SuHydro, the quoted 6 Billion is just for the dam, no Intertie upgrades to handle an additional 600 Mw.  Further, there has been no less than 3 (Three!) new gas fired plants brought on line or in the final stages in Anchorage/Eklutna.  The cost to Railbelt customers would skyrocket due to market dilution.  That is why you see zero support from GVEA, CEA, ML&P and HEA.  Picture those utilities having to buy SuHydro at costs well above their own generation costs.  What could possibly go right?