The power of the tides, for example, in the shelf zones of the arctic seas and seas of far eastern Russia, is, by nature, an alternative to the electric power generated by nuclear and thermal electric plants. Exhaustion of natural fossil-fuel reserves, the difficulty of constructing reliable nuclear power plants and unwavering growth of power demand has spurred significant interest in the problem of utilizing ecologically pure tidal energy.In his monograph "Blue coal" [1], Professor V. E. Lyakhnitskii was the first to shed light on the problem of utilization of tidal energy in the USSR in 1926. In 1961, L. B. Bernshtein published his monograph "Tidal electric power plants in the power industry [2], in which he develops and scientifically substantiates a method for utilization of tidal energy by constructing tidal electric plants that partition off large marine bays by the floating method. The first tidal electric plant (TEP) in Russia -the 400-kW Kislognbsk TEP -was designed under the direct guidance of Mr. Bernshtein at the S. Ya. Zhuk All-Union Scientific-Research Institute for Design and Exploration (AUSRIDE) with the participation of the B. E. Vedeneev All-Union Scientific-Research Institute of Hydraulic Engineering (AUSRIHE) and other organizations, and constructed in 1968. In 1987, a group of specialists published monograph [3], which contains results of investigations of tidal phenomena and a generalization of experience gained with the design of TEP in various countries. The most expedient sites for TEP construction have also been determined, for example, it is established that proper twice-daily tides, whose amplitudes are as follows, are observed on the coastlines of Russia: Amax = 4 m and Aavg = 2.4 m on Kola Bay; Amax --7.4 m and Aavg = 4.2 m on Lumbov Bay on the White Sea; Amax = 9.5 m and Aavg -~ 6.6 m in the Mezen' River at the mouth of the Semzhi River; approximately 9 m in Tugnr Bay on the Sea of Okhotsk; and, 13.4 m on Penzhina Gulf in the Sea of Okhotsk.The Gulf of Kislaya, which is located on the coastline of the Kola Peninsula and is connected to Ura Bay by a narrow strait, has been found extremely favorable for layout solutions with respect to ice conditions, and the small magnitude of the tide (1.1-3.9 m) ensured operational testing of the sets under minimum heads [2].The ice regime in the Gulf of Kislaya has been under investigation since 1938 by the Lengidroproekt, the State Oceanographic Institute (SONI), the Murmansk Hydrometeorological Service Administration (HMSA), and the AUSRIHE. It has been established that at the Kislognbsk tidal electric plant, the influence of ice on the latter is negligible as a result, of the existence of remnants of the heat flux of the Gulf Stream in this region of the Barents Sea. The strait between the Gulf of Kislaya and the marine water bodies adjacent to it are free of ice during the major part of the winter, or are covered by primary forms of ice such as snowdrifts and anchor ice, which are carried off into the sea under the action of tidal outflows an...