Which of the following best describes tidal energy?

Tidal energy is considered predictable because tides are influenced by the gravitational forces of the moon and the sun, which create a reliable and cyclical rhythm that can be anticipated. This predictability allows for more effective planning and integration into energy grids compared to other renewable energy sources like solar and wind, which can be more variable.

Additionally, tidal energy typically has a high energy density compared to many other renewable sources. This means that a smaller physical footprint can produce a significant amount of energy, especially in areas with strong tidal flows. The infrastructure needed to harness tidal energy typically requires less ongoing maintenance compared to other renewable sources, further enhancing its practicality as an energy solution.

Therefore, these characteristics—predictability, high energy density, and low maintenance—make tidal energy a strong candidate for sustainable energy development.