Band 6+: Scientists and engineers are continuing to look for new ways to generate electricity. The following is a diagram of how electricity may be generated from tidal flow. Summarise the information by selecting and reporting the main features, and make comparisons where relevant.

The picture depicts energy energy-producing process from tides as scholars and engineers are keeping on to look for innovative ways.

Overall, there is one enormous construction that uses sea water in order to generate wave energy.

As it is seen from the picture, first the sea water goes into the electricity generator tunnel, making the water flow back and forth. There are several gates to control water flow in Inland bay and this is essential to enhance water level in an appropriate way. For instance, if there is high-level water, which makes flood in a roadway above the construction, it can be adjusted by opening the sluice gates. Subsequently, the electricity produced in the assembled structure by the flows goes through the tunnel. The last, yet the most essential part, is the main barrage structure, located above the electricity generator working as an energy storage.