LEED AP Building Design and Construction (BD+C) Practice Exam

What type of power is often associated with low-impact hydroelectric systems?

1. Thermal energy

2. Fossil fuels

3. Hydraulic energy

4. Wind energy

The correct answer is: Hydraulic energy

Low-impact hydroelectric systems primarily harness hydraulic energy, which is the energy derived from the movement of water. In the context of these systems, water flow is utilized to generate electricity in a way that minimizes environmental impact. This is different from traditional hydropower systems that may flood large areas or disrupt ecosystems. Low-impact hydroelectric systems focus on using the kinetic and potential energy of flowing water with minimal alteration to the water source, thus preserving the natural habitat surrounding it. Hydraulic energy is a versatile and renewable resource because it relies on the continuous cycle of water in nature. Unlike fossil fuels, which are non-renewable and contribute to greenhouse gas emissions, or thermal energy derived from the heating of substances, hydraulic energy presents a sustainable option for electricity generation. Additionally, it is different from wind energy, which uses the power of the wind to generate electricity, whereas hydraulic energy specifically pertains to the energy created from moving water.