Renewable Energy Storage Technologies: A Comprehensive Comparison

# Energy Storage Technology Comparison\n\nAs renewable energy penetration increases globally, effective energy storage becomes critical for grid stability and reliability.\n\n## Technologies Compared\n\n### Lithium-Ion Batteries\n- Best for short-duration storage (4-8 hours)\n- Mature technology with declining costs\n- High round-trip efficiency (90-95%)\n\n### Green Hydrogen\n- Ideal for seasonal and long-duration storage\n- Enables cross-sector coupling\n- Growing cost competitiveness\n\n### Thermal Storage\n- Suitable for industrial heat applications\n- Low-cost materials and simple operation\n- Long lifespan with minimal degradation