Renewable Energy Technologies

India's renewable energy capacity reached ~190 GW (2024), targeting 500 GW by 2030. Solar (~85 GW), wind (~45 GW), hydro (~47 GW), bioenergy (~10 GW). Key technologies: solar PV, wind turbines, hybrid, storage (batteries, pumped hydro), green hydrogen. Policies: NSPM (National Solar Mission), NWM (Wind Mission), PLI (solar manufacturing), GBI, ISTS waiver. Challenges: land, grid integration, storage, finance, domestic manufacturing.[TOPIC CLASSIFICATION]

• Topic type: Science & Technology - Renewable Energy
• PYQ frequency: High
• Exam stage: Prelims + Mains
• Primary GS paper: GS 3

[EXAMINER REASONING]

1. Trap: Confusing installed capacity with generation. Capacity (GW) is potential; generation (GWh) depends on capacity factor (solar ~20%, wind ~25-30%). Many aspirants quote capacity as actual output.
2. Most confused: The policy landscape: NSPM (2010, 100 GW solar), NWM (wind), PM-KUSUM (solar pumps), PLI (solar PV manufacturing, Rs 24,000 cr), ISTS waiver (inter-state transmission). Many aspirants mix up missions and schemes.
3. Key anchor: The 500 GW by 2030 target (COP26): 280 GW solar, 140 GW wind, 10 GW biomass, 5 GW small hydro, 65 GW hydro. Current ~190 GW (solar 85, wind 45, hydro 47, bio 10). Green Hydrogen Mission (Rs 19,744 cr) for 5 MMT by 2030.
4. Current affairs hook: RE capacity ~190 GW (2024). Solar ~85 GW, wind ~45 GW. PLI Scheme 2.0 (Rs 24,000 cr) for solar PV manufacturing. Green Hydrogen Mission (2023, Rs 19,744 cr). PM-KUSUM (solar pumps, 3.5M by 2026). Battery storage PLI (Rs 18,100 cr). COP28: triple renewables by 2030.
5. Mains hinge: Assess: Can India meet 500 GW by 2030? The land acquisition, grid integration (storage, forecasting), domestic manufacturing (PLI), and finance (green bonds, foreign investment) bottlenecks are the Mains frame.

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Core Concept

India's renewable energy journey: 4th largest globally (~190 GW, 2024). Targets: 175 GW by 2022 (missed), 500 GW by 2030 (COP26). Breakdown 2024: Solar ~85 GW (ground-mounted, rooftop, PM-KUSUM), Wind ~45 GW (onshore, offshore potential 70 GW), Large Hydro ~47 GW, Small Hydro ~5 GW, Bioenergy ~10 GW.

Solar: National Solar Mission (2010, revised 100 GW), PLI Scheme (Rs 24,000 cr for solar PV modules, cells, wafers), PM-KUSUM (3.5M solar pumps by 2026), rooftop solar (Phase II, 4 GW residential). Floating solar (Ramagundam 100 MW).

Wind: Onshore ~45 GW (Tamil Nadu, Gujarat, Maharashtra, Karnataka), Offshore potential 70 GW (Gujarat, Tamil Nadu). Wind-Solar hybrid policy (2018). Repowering old turbines.

Hydro: Large hydro ~47 GW (classified as renewable 2019), pumped storage (PSPs) for grid balancing (8 GW operational, 100+ GW potential). Small hydro ~5 GW.

Green Hydrogen: National Green Hydrogen Mission (2023, Rs 19,744 cr), target 5 MMT by 2030, electrolyzer manufacturing PLI. Battery storage: PLI (Rs 18,100 cr), 4 GWh target.