PM-KUSUM: Solar Energy Push vs Groundwater Crisis

Overview of PM-KUSUM

PM-KUSUM (Pradhan Mantri Kisan Urja Suraksha evam Utthaan Mahabhiyan) is a flagship Ministry of New and Renewable Energy (MNRE) initiative launched in 2019 and scaled up in 2024.

Key Objectives:

• Ensure energy and water security for farmers
• Enhance rural incomes
• De-dieselise agriculture
• Reduce pollution and support India's Paris Agreement commitments
• De-dieselise the agricultural sector

Three Core Components

Component A: Decentralized Solar Plants

• Target: 10,000 MW of decentralized grid-connected solar power plants (500 kW to 2 MW)
• Farmers install on barren/cultivable lands
• Earn stable income by selling power to DISCOMs at feed-in-tariff (FiT) determined by SERC
• Must be within 5 km radius of substations

Component B: Standalone Off-Grid Pumps

• Target: 14 lakh standalone off-grid solar agricultural pumps
• Replaces expensive and polluting diesel pumps in non-grid areas
• Savings: 5 HP pump saves ~Rs 60,000/year on diesel
• ROI achieved in less than one year

Component C: Grid-Connected Solarisation

• Target: 35 lakh existing grid-connected agricultural pumps
• Two modes:
• Individual Pump Solarisation (IPS)
• Feeder Level Solarisation (FLS)

Subsidy Structure & Financing

General States:

Special Category States:

• North-Eastern states, Hilly regions (HP, Uttarakhand), Island UTs
• Central CFA: 50%
• Farmer's out-of-pocket: 20%

Priority Sector Lending:

• RBI has included scheme under PSL guidelines for easy credit access

Progress as of August 2026

Milestone: Maharashtra set Guinness World Record — 49,500 solar pumps installed in a single month.

Significance of PM-KUSUM

Fiscal Relief for States & DISCOMs:

• Agricultural electricity subsidies cost states over Rs 1 lakh crore annually
• Reduces transmission losses and aids DISCOM financial revival
• In Gujarat, subsidies covered nearly 25% of investments within two years

Macro-Economic Gains:

• Reduces diesel consumption by 1.38 billion liters annually
• Substantial drop in petroleum import bill

Boost to 'Make in India':

• Mandates domestically manufactured solar cells/modules
• Creates guaranteed demand of over 20 GW for domestic renewable industry

Environmental Impact:

• Groundwater irrigation generates 45-62 million tonnes CO2 annually
• Scaling solar pumps across 25 million agricultural pumps offers major mitigation
• Gujarat: single grid-connected farmer offsets 12.3 tonnes CO2/year

Critical Concerns

1. The "Zero Marginal Cost" Paradox

• Solar eliminates economic friction of operational costs
• Extra pumping costs nothing → farmers over-irrigate or sell water to neighbors
• Severely threatens aquifers in North-Western and Southern India

2. Feed-in-Tariff Architecture Failure

• Component C relies on farmers selling surplus electricity back to grid
• Financially stressed DISCOMs reluctant to offer attractive FiT
• Nullifies conservation incentives

3. Hydrological-Energy Policy Silos

• Disconnect between renewable energy targets and groundwater realities
• Subsidies distributed uniformly without CGWB aquifer mapping
• High-capacity pumps in "over-exploited" blocks accelerate degradation

4. Inelastic Cropping Patterns

• MSP and procurement heavily favor water-guzzling crops (paddy, sugarcane)
• Solar subsidy on distorted agricultural foundation worsens sustainability

5. Capital Bottlenecks for Marginal Farmers

• 40% upfront capital contribution prohibitive for small/marginal farmers
• Disproportionately benefits wealthier farmers
• Widens rural inequality

6. Grid Infrastructure Deficits

• Component A requires grid infrastructure within 5 km of substations
• Remote rural areas lack baseline infrastructure
• Restricts geographical equity

Recommendations for PM-KUSUM 2.0

Behavioral Nudges and Water Credits:

• Adopt "water-saving credits" for FLS
• Cash transfers (DBT) for farmers consuming below baseline
• Model: Punjab's 'Pani Bachao, Paisa Kamao' initiative

Dynamic Aquifer Mapping:

• Integrate MNRE and Ministry of Jal Shakti databases
• Restrict high-HP pumps in "dark zones" or "over-exploited" blocks
• In water-abundant regions (Eastern India): prioritize standalone off-grid pumps
• In saturated regions (Punjab, Haryana): exclusive focus on grid integration

Mandatory Micro-Irrigation Coupling:

• Deploy Component B pumps only with drip/sprinkler systems
• Use Per Drop More Crop initiative framework

Agro-Climatic Realignment:

• MSP and procurement policies must shift farmers away from water-guzzling crops
• Promote climate-resilient alternatives: millets, pulses, oilseeds

Community Ownership Models:

• Bypass individual ownership in fragmented areas
• Scale through Water-User Associations (WUAs), FPOs, rural water-selling cooperatives

Constitutional & Policy Dimensions

• Ministry of Jal Shakti — Integration needed with MNRE
• Central Ground Water Board (CGWB) — Aquifer assessment must guide deployment
• RBI Priority Sector Lending — Facilitates credit access
• State Electricity Regulatory Commissions (SERCs) — Determine feed-in tariffs
• Paris Agreement Commitments — Non-fossil fuel energy targets

Water-Energy-Agriculture Nexus

PM-KUSUM exemplifies the interconnected challenges of:

• Energy security (solarisation)
• Water security (groundwater sustainability)
• Food security (crop patterns, MSP)
• Environmental security (emission reductions)

The scheme must integrate all three dimensions to ensure clean energy transition does not come at the cost of depleted aquifers.