Energy Storage — Prelims Questions

Which of the following energy storage technologies is characterized by the decoupling of power and energy capacity, allowing for flexible scaling of duration?

Consider the following statements regarding India's energy storage policy framework: 1. The National Energy Storage Mission (NESM) aims to establish India as a global manufacturing hub for advanced energy storage. 2. The Production Linked Incentive (PLI) scheme for Advanced Chemistry Cell (ACC) battery storage targets 100 GWh of manufacturing capacity by 2030. 3. Pumped Hydro Storage (PHS) is explicitly excluded from India's renewable energy targets due to its environmental impact. Which of the statements given above is/are correct?

Which of the following is NOT a primary application of grid-scale energy storage systems?

Consider the following statements regarding the environmental impact of energy storage technologies: 1. Lithium-ion battery manufacturing relies heavily on critical minerals, raising concerns about mining impacts. 2. Pumped Hydro Storage projects typically have minimal land use requirements and negligible ecological impact. 3. Recycling infrastructure for advanced chemistry cells is well-established globally, ensuring a circular economy for battery materials. Which of the statements given above is/are correct?

Which of the following statements best describes the concept of 'round-trip efficiency' in energy storage?