Penzhina Bay

The bay has one of the strongest tides in the world, there have been several power station proposals.

Near its middle, two peninsulas narrow it to 30 km (18.6 mi), forming The Gorlo.

It is 713 km (443 mi) long and flows east, then south, then southwest to reach the bay.

In 1669 the Russians built the ostrog of Aklansk, which was used to subdue the local Koryaks and was an important base on the route south from Anadyrsk to the Kamchatka peninsula before the sea route from Okhotsk opened up.

Between 1849 and 1900, American whaleships hunted bowhead whales in the bay.

Ebenezer F. Nye, was wrecked on Krayny on the western side of the bay.

[4][5][6] During a five-day period in late September 1968, the Soviet factory ship Vladivostok and its fleet of whale catchers illegally caught sixty-six balaenids (likely bowheads) in the bay.

[7] The tides in the Penzhin Bay of the Sea of Okhotsk are the highest for the Pacific Ocean, reaching a height of 13.4 metres (44 ft).

[9][10] Given that the average magnitude of tide is equal to 10 metres (33 ft), this gives the diurnal flow of water in the bay as 410.6 cubic kilometres (98.5 cu mi) or average discharge 4.75×106 m3•s−1.

The passing stream has its own potential energy, which in the gravity field of Earth is above zero only in the case of non-zero head of water (

The part of the expression in brackets denotes terms defining the mass of water passing through the basin daily.

gives two times lower height of tide in the bay and twice smaller average discharge of water — 5 m and 2.38×106 m3•s−1 (205.3 km3/day), correspondingly.

The substitution of obtained parameters into (1) and dividing it by the day length in seconds gives the average capacity 120 GW.