What do hydroelectric dams tidal energy and wind energy systems have in common?

Hydroelectric dams, tidal energy, and wind energy systems all harness renewable energy sources to generate electricity, contributing to a reduction in greenhouse gas emissions. They rely on natural processes—water flow in the case of hydro and tidal energy, and air movement for wind energy—making them sustainable alternatives to fossil fuels. Additionally, all three technologies can have environmental impacts and require careful site selection to balance energy production with ecological preservation.