It looks like our Norwegian friends have finally managed to deploy tidal power systems that are actually practical. One criticism is cost but since this system costs only $.04-.05 (USD) per kilowatt hour. That’s pretty cheap since hydroelectric power from Hoover Dam here in the states is costing $.07 per kilowatt hour.
Tidal power has also been slow to take off because of the large artificial tidal pools that have to be built to support the turbines. The problems have been great enough that this directory of tidal power info has links that power companies that are no longer pushing their tidal initiatives. The Norwegians have found a way around this requirement. Perhaps the US won’t need to turn Texas into a giant nuclear reservation after all.