Which energy storage technology is most commonly paired with solar power systems for residential use?
- Lead-acid battery
- Lithium-ion battery
- Flow battery
- Compressed air
Answer: Lithium-ion battery
Lithium-ion batteries offer high energy density, long cycle life, and declining costs, making them ideal for residential solar storage. Lead-acid is cheaper but heavier with shorter lifespan. Flow batteries suit grid-scale storage. India's PLI scheme promotes domestic Li-ion cell manufacturing for energy transition.