India Needs a Grid Revolution

UPSC Syllabus: Gs Paper 3- Infrastructure

Introduction

India has rapidly expanded its clean energy capacity, bringing the 500 GW non-fossil capacity target within reach. However, adding renewable capacity alone cannot ensure affordable, reliable and clean electricity. The grid must also absorb, transmit and deliver this power when consumers need it. Rising renewable generation, changing demand patterns and growing curtailment now expose gaps in grid infrastructure, storage, planning, operations and power markets, making a comprehensive grid transformation necessary.

Current Status of India’s Clean Energy Transition and Power System

1. Rapid Expansion of Non-Fossil Capacity: India has 297 GW of non-fossil capacity, with 138 GW of large-scale solar and wind under construction and 40 GW of distributed solar planned.
2. Growing Role in Electricity Generation: Non-fossil sources now provide about one-fourth of annual electricity generation, and their share crossed 50% during daytime in July 2025 and July 2026.
3. Policy Support for Renewable Growth: Financial incentives, competitive auctions and new electricity trading platforms have supported renewable deployment, integration and market-based price discovery.
4. Clean Energy Cannot Be Fully Utilised: Between April and June 2026, India curtailed or restricted 8,133 GWh of solar generation because the grid could not absorb and deliver it.
5. Storage Remains Inadequate: In India, 1 GW of battery capacity supports about 60 GW of solar and wind, compared with 4–13 GW in Australia, the United States and China.

Why Rapid Renewable Capacity Addition Alone Is Not Enough

1. Cheap Generation Is Not Cheap Electricity: Low solar or wind tariffs do not ensure affordable electricity when curtailment, congestion, balancing and backup costs increase.
2. The Whole Power System Must Progress Together: Generation, transmission, storage, flexible capacity, grid operations and markets must develop as one coordinated system.
3. Excess Renewable Power Is Curtailed: Daytime renewable electricity is being curtailed despite high demand after sunset because storage and reserves are limited.
4. Separate Planning Raises Consumer Costs: Developing generation, networks and flexibility separately can increase costs through delayed transmission and underutilised capacity.
5. The Objective Is 24×7 Clean Electricity: India must deliver electricity that is affordable, abundant, reliable and clean, rather than focusing only on installed capacity.

Key Challenges in Building a Reliable and Renewable-Based Power System

1. Inflexible Grid Design: Existing grids were largely built for one-way electricity flows and are not designed for high levels of variable renewable generation.
2. Transmission Expansion Is Too Slow: Renewable projects can be installed faster than transmission lines, creating congestion and limiting power evacuation.
3. Declining Reserve Availability: Available reserve capacity is becoming thin, reducing the system’s ability to manage sudden changes in demand or renewable output.
4. Insufficient Grid Visibility: Many distribution companies lack adequate information on consumer demand, network assets, rooftop solar and electric vehicle impacts.
5. Traditional Planning Cannot Handle Uncertainty: Periodic planning based on fixed demand forecasts is less suitable when weather, demand and generation conditions change rapidly.
6. Changing Demand Patterns: Electric mobility, industrial electrification and data centres are changing when, where and how electricity is consumed.
7. Underdeveloped Wholesale Markets: Most electricity is sold through long-term 25-year contracts, leaving limited scope for competitive short-term electricity trading and flexible resource use.
8. Markets Mainly Reward Energy Generation: Current arrangements do not adequately value capacity, dispatchability, rapid ramping, reserves, storage or congestion relief.
9. Technology-Specific Procurement Limits Competition: Separate auctions for thermal, solar, wind and renewable energy with storage prevent direct competition for least-cost system services.

Way Forward

1. Modernise and Strengthen the Grid
2. Use Advanced Grid Technologies: Reconductoring existing transmission lines can increase power evacuation using the same infrastructure and reduce the need for entirely new lines.
3. Expand Flexible Capacity and Reserves: Flexible operation of the state-owned thermal fleet can strengthen reserves beyond central generating stations and support variable renewable output.
4. Promote Grid-Forming Technologies: Grid codes should mandate grid-forming inverters to support stability as renewable generation becomes a larger part of the power system.
5. Co-Locate Renewable Energy and Storage: Battery storage should be developed alongside existing and new renewable projects to shift surplus electricity to periods of higher demand.
6. Build an Adaptive and Intelligently Operated Grid
7. Adopt Adaptive Planning and Operations: The power system should continuously observe conditions, anticipate changes, act, learn and adapt as demand and weather evolve.
8. Use Physical Artificial Intelligence: Physical Artificial Intelligence can combine weather, demand, plant, network and market data to compare physically feasible operating decisions.
9. Guide Investments Through Operating Evidence: Repeated bottlenecks should help determine whether additional investment is needed in transmission, storage, flexible generation or demand response.
10. Keep Human Control Over Decisions: Physical Artificial Intelligence should remain explainable, grounded in grid physics and subject to human oversight by system operators.

Accelerate Digitalisation and Demand-Side Management

1. Expand the Use of Smart Meters: Smart meters can provide better information on electricity use and help consumers change consumption during grid stress.
2. Introduce Time-Varying Tariffs: Smart meter data can support tariffs that encourage consumers to shift electricity use to suitable periods.
3. Improve Consumer Information: Consumer-facing applications should provide real-time electricity prices and detailed information on electricity consumption.
4. Create a Shared Data System: Grid institutions need interoperable data and a shared operating picture to coordinate generation, transmission and distribution decisions.

Reform Power Markets and Procurement

1. Reward Capacity and Flexibility: Power markets should pay for capacity, storage, reserves, rapid ramping and flexible demand based on when and where these services are needed.
2. Develop Short-Term Capacity Markets: Centrally allocated thermal capacities can initially be brought into short-term capacity markets, followed by gradual market expansion.
3. Use New Market-Based Instruments: The Contracts-for-Difference pilot and similar instruments can attract investment in projects supplying clean electricity when utilities need it most.
4. Enable Cross-Technology Competition: Utilities should specify future needs such as capacity, flexibility and grid stability, allowing different technologies to compete on merit.
5. Adopt Integrated Power System Planning: Generation, transmission and flexibility should be planned together, while future resource adequacy is regularly reassessed using operating evidence.
6. Support Innovative Procurement Designs: The Ministry of Power and the Central Electricity Regulatory Commission should promote tender and contract designs that compare technologies on least-cost outcomes.
7. Use Expandable Grid Corridors: Interconnected and expandable transmission corridors can support data centres and industrial clusters as electricity demand develops over time.

Conclusion

India’s energy transition must now move from adding renewable capacity to integrating and using it effectively. A modern grid, adequate storage, adaptive planning, intelligent operations and better power markets must work together. The real measure of success will not be gigawatts installed, but the ability to deliver affordable, abundant, reliable and clean electricity to consumers when and where they need it.

Question for practice:

Discuss the need for a grid revolution to ensure the effective integration and utilisation of renewable energy in India.

Source: Business Standard; Economic times