Small Hydro

Introduction to the Small Hydro Subsector

Small Hydro refers to hydroelectric power plants with a capacity of up to 25 MW. These projects harness the energy of flowing water—often through canal-based or run-of-river setups—without large dams or reservoirs. They are considered environmentally friendly, have minimal land requirements, and are suitable for rural and remote areas. India has an estimated potential of over 21,000 MW from more than 7,000 identified sites, with significant opportunities in hilly states like Arunachal Pradesh, Himachal Pradesh, Jammu & Kashmir, and Uttarakhand. The Ministry of New and Renewable Energy (MNRE) is the nodal agency for this subsector.

Class Station Capacity in kW
Micro Hydro Up to 100
Mini Hydro 101 to 2000
Small Hydro 2001 to 25000

Opportunities India is Working Towards in Small Hydro

  • Government Incentives: MNRE offers capital subsidies (up to 40% for sub-1 MW, up to 30% for 1–25 MW projects), tax benefits, and streamlined approvals.
  • Modernization & Upgradation: Retrofitting existing small hydro projects to improve efficiency and reliability.
  • Rural Electrification: Small hydro is vital for localized power supply, supporting rural development and grid balancing.
  • Environmental Benefits: Lower environmental impact compared to large hydro, with minimal displacement and deforestation.
  • Job Creation: Deployment of small hydro is expected to generate thousands of jobs, especially in states with untapped potential.
  • Doubling Capacity: The government aims to double installed small hydro capacity to 10 GW within a decade.

Initiatives Launched in India

  • Central Financial Assistance (CFA): Updated guidelines allow more flexible performance criteria for subsidy release, addressing seasonal and operational challenges.
  • New Small Hydro Policy: MNRE is set to launch a policy focused on the North East, leveraging its hilly terrain and water resources for local clean energy generation and job creation.
  • Integrated Clean Energy Policies: States like Assam have introduced policies integrating small hydro with other renewables.
  • Subsidy Schemes: Ongoing schemes for watermills, micro hydel projects, and canal-based small hydro, with application forms and guidelines available on the National Portal of India.

Projects Launched Over the Past 3 Years

  • Capacity Additions: India has added approximately 58–97 MW of small hydro capacity annually over the past three years.
  • Regional Focus: New projects have been launched in high-potential states, especially in the North East and hilly regions.
  • Modernization Projects: Many existing small hydro plants are being upgraded for better efficiency and reliability.
  • Examples: Projects in districts like Kandhamal and Angul (Odisha), and ongoing schemes in Jammu & Kashmir, Himachal Pradesh, and Uttarakhand.

Data on Growth in the Subsector (Past 3 Years)

  • Installed Capacity:
    • 2022–23: Added 95.4 MW (Cumulative: ~5,158 MW)
    • 2023–24: Added 58.95 MW
    • 2024–25 (up to Oct): Added 58.06 MW
  • Hydro Generation Growth: Hydro generation (all sizes) grew by 10% in 2024–25 (April–Feb) compared to the previous year.
  • Market Value: The small hydro market was valued at $117 million in 2025, expected to reach $169 million by 2031, with a CAGR of 6.19%.