Renewable Energy and Storage Quiz

What is considered the biggest challenge in moving towards a renewable energy future?

• Accessibility to energy sources

• Reducing energy consumption

• Adapting the grid

• Energy storage

What percentage of installed energy storage in California is comprised of pumped storage hydroelectric?

• 100%

• 98%

• 75%

• 50%

What is a key advantage of pumped storage hydroelectric compared to batteries?

• Higher round trip efficiency

• Easier to install in urban areas

• Smaller environmental footprint

• Lower initial cost

Which technology involves using cranes to move massive bricks for energy storage?

• Thermal batteries

• Mechanical energy storage with bricks

• Compressed air energy storage

• Pumped storage hydroelectric

What is a major benefit of compressed air energy storage?

• Minimal environmental impact

• Long duration energy storage

• High energy density

• Low cost of materials

What is the primary method currently used to produce hydrogen?

• Electrolysis

• Photovoltaic conversion

• Steam reformation

• Cryo-cooling

What is a significant challenge in using hydrogen as an energy storage medium?

• High cost of production

• Storage and purity requirements

• Limited availability of hydrogen

• Low energy density

What is a unique feature of thermal batteries developed by Antora?

• Use of hydrogen as a core component

• Use of steam turbines

• Storage of energy as heat in carbon blocks

• Reliance on lithium-ion technology

What is a key advantage of flow batteries over lithium-ion batteries?

• Higher energy density

• Smaller size

• Faster charging time

• Lower fire risk

What is a potential drawback of using vanadium in flow batteries?

• High toxicity

• Limited availability

• Rising cost

• Low efficiency