The Pulse Tidal approach uses oscillating hydrofoils, which lie horizontally in the water and sweep up and down. This means that the length of the hydrofoils, or blades, is not limited by the depth of the water. Many of our competitors use circular rotating "horizontal axis" devices whose blade length is constrained by water depth.

The power generated by a tidal device is proportional to the area of water which the blades cover as they move - shown as a lighter coloured area in the picture above. Because our device sweeps a long, low rectangle rather than a vertical circle, we are able to generate four times the power of a single horizontal axis rotor.

With four times the power from each machine, we are able to efficiently develop tidal power sites with fewer machines, meaning there are fewer interconnections, fewer installations, and fewer moving parts. All of which means a lower lifetime cost of electricity for our customers.