Right now, the high cost of building, operating and maintaining tidal power technology means that tidal energy comes at a premium.

目前，建造、运行和维护潮汐能技术的高昂成本意味着潮汐能的价格很高。

Then there's tidal power, where electricity  is generated by underwater turbines.

然后是潮汐能，其中电力由水下涡轮机产生。

This floating structure would work in a similar way to a dynamo, utilizing the water currents with wind turbines and tidal power as it rotates converting the energy into electricity.

这个漂浮的结构能以类似发电机的方式运转，利用水流与风力漩涡机和潮汐能，当它旋转时将能量转化为电力。

Unless we do research on solar energy, wind power, wave power, tidal power, hydroelectric schemes etc, our fossil fuels will run out, and we'll all freeze or starve to death.

除非我们对太阳能、风能、波浪能、潮汐能、水力发电计划等进行研究，否则我们的化石燃料将会耗尽， 我们都会被冻死或饿死。

Others argue that renewable, non-polluting energy sources such as wind power, solar power and tidal power will allow further economic growth without causing damage to the environment (see Unit 51).

其他人则认为，风能、太阳能和潮汐能等可再生、无污染的能源将在不对环境造成破坏的情况下促进经济进一步增长（见第 51 单元）。