Not for the home generator but the energy contained in ocean waves can potentially provide an unlimited source of renewable energy.

Wind generated waves on the ocean surface of the world have a total (estimated) power of 90 million GW. Because of the direction of the prevailing winds and the size of the Atlantic Ocean, the UK has wave power levels that are amongst the highest in the world. The wave energy industry, like the tidal one, sees itself as having the potential of the wind industry but is currently around 10 years behind it. In 2003 the total capacity was 0.5 MW.

The connection of wave machines to the electricity grid system can pose a number of technical challenges, which can make the connection requirements more complex than connections for conventional generating plant.

In the UK we are only ever 70 miles away from the coast. So with all this energy available why not now?