The tidal barrage dominates the long history of tidal power, but the barrage is not suitable for modern commercial-scale power generation, given its environmental drawbacks. Offshore tidal power generation resolves the drawbacks of the tidal barrage without departing from the use of familiar low-head hydroelectricity principles and equipment. Thus, while offshore tidal power generation must be considered “new,” it cannot be considered “experimental.” Interest in renewable source power conversion is on the rise as the damage from burning fossil fuels becomes ever more evident and expensive. Offshore tidal power generators bring tidal power back within the range of feasible choices for electricity distributors, as it promises to be economical as well as environmentally neutral. Hybrid applications involving other renewable power sources may provide further alternatives and real-world solutions to the need to switch to renewable and sustainable power sources.