Energy Storage and Grid Management

The video explains energy storage using a refrigerator analogy, highlighting its role in supporting the power grid during high demand and low supply periods. It covers various energy storage types, including pumped hydropower and lithium-ion batteries, and discusses their conversion processes and efficiency. The video also explores future trends in energy storage, emphasizing its importance in maintaining a resilient, renewable-based grid. Finally, it provides resources for further learning.

What is the primary function of an energy storage system in relation to the power grid?

• To generate electricity continuously

• To reduce the need for renewable energy

• To provide energy boosts when the grid needs it

• To replace traditional power plants

How is excess renewable energy used in energy storage systems?

• It is sold to other countries

• It is stored for future use

• It is used immediately

• It is wasted

During which condition is stored energy typically used by the power grid?

• When fossil fuels are cheap

• During low demand periods

• During high demand periods

• When renewable energy is abundant

What is the largest existing source of electric storage in the United States?

• Pumped hydropower

• Flywheels

• Lithium-ion batteries

• Compressed air energy storage

How do lithium-ion batteries store electricity?

• As electrochemical energy

• As thermal energy

• As potential energy

• As kinetic energy

What is a key benefit of energy storage technologies becoming cheaper?

• They can replace all fossil fuels

• More storage can be added to the grid

• They become less reliable

• They require more maintenance

How does energy storage help during unexpected changes like wildfires or storms?

• By generating new energy

• By storing excess fossil fuel energy

• By providing backup power

• By reducing energy demand

What challenge does energy storage solve for a renewable-based grid?

• How to increase fossil fuel use

• How to store energy when wind or solar aren't available

• How to reduce energy consumption

• How to eliminate the need for energy storage

What is the ultimate goal of energy storage in terms of grid performance?

• To reduce the need for renewable energy

• To increase energy costs

• To ensure a flexible, resilient, carbon-free grid

• To create a fossil fuel-based grid

Where can you learn more about energy storage?

• In a science fiction book

• On the NREL website

• At a fossil fuel company

• At a local library