ocean waves crashing on shore during daytime

"A wave with a height of 2 m and a wavelength of 14 m breaking along 2 km of coastline (surface area = 32,000 m2) has approximately 45 kWh of energy. This is roughly equivalent to one gallon of gasoline, which contains about 160 million (1.6 x 108) joules (J) of energy." There was a lot of energy yesterday.