India's ambitious drive towards renewable energy is encountering a significant hurdle: the nation's transmission infrastructure is struggling to keep pace with the rapid expansion of clean power generation. In the first quarter of 2026, an estimated 300 gigawatt-hours (GWh) of renewable energy was curtailed, primarily due to transmission constraints, according to an analysis by the energy think tank Ember.
This curtailment represents a substantial loss of clean electricity and underscores a critical imbalance in India's energy transition strategy. The issue is particularly pronounced in the Northern and Western regions of the country, which together accounted for the majority of the lost energy. The Southern region, however, has shown better synchronization between generation and grid development.
The Growing Mismatch Between Generation and Grid Capacity
The core of the problem lies in the accelerating pace of renewable energy development outpacing the corresponding build-out of essential transmission infrastructure. Ember's report indicates that India has only met approximately 80% of its annual transmission targets over the past five years. Furthermore, a significant number of major transmission projects are running behind schedule, with one in every four major schemes delayed by a year or more. This bottleneck is projected to cause connectivity delays of over four months for approximately 20 GW of renewable energy capacity in the fiscal year 2026-27.
This situation is not merely an operational inconvenience; it has tangible economic and environmental consequences. The Draft National Electricity Policy (NEP) 2026 acknowledges these emerging challenges, signaling a shift in focus from simply adding generation capacity to actively managing the power system. The policy recognizes that while India has made significant strides in scaling up renewable energy, mismatches between supply and demand are becoming more apparent, leading to situations where electricity prices on exchanges have fallen to near zero during peak solar generation hours.
Policy Shifts Towards System Management and Storage
In response to these evolving dynamics, India's energy policy is beginning to emphasize system management and flexibility. The Draft National Electricity Policy (NEP) 2026, released in May 2026, moves towards a more integrated approach, considering not just the quantity of electricity generated but also its timing and delivery. Key proposals include developing renewable energy sources closer to load centers, enhancing the utilization of existing transmission assets, integrating distributed energy resources, and promoting demand-side participation.
Central to this evolving strategy is the increased role of energy storage. The draft policy suggests a gradual move away from traditional 'banking' of energy and a greater emphasis on storage at both consumer and system levels. Concepts like 'Cloud Energy Storage' and a stronger push for renewable energy combined with storage are being explored.
This policy direction is also supported by state-level initiatives. The Indian States' Electricity Transition (SET) 2026 report highlights that while states are progressing in their energy transition, the pace varies. Many states are beginning to invest in energy storage and are preparing their grids for higher levels of renewable energy penetration, even if their renewable energy capacity deployment is still accelerating.
The Path Forward: Addressing Grid Gaps and Regulatory Evolution
The challenges posed by transmission constraints are not unique to India, but the scale of its renewable energy ambitions makes addressing them a national priority. The substantial curtailment of 300 GWh in Q1 2026 serves as a stark reminder of the need for accelerated investment and strategic planning in grid modernization and expansion.
As India continues its journey towards a low-carbon energy future, the successful integration of renewable energy hinges on its ability to build a resilient and flexible grid. The forthcoming National Electricity Policy and ongoing state-level efforts signal a recognition of these challenges and a commitment to adapting the energy system to meet the demands of a renewable-powered future. The coming years will be critical in observing how effectively India can bridge the gap between its renewable energy potential and its grid infrastructure's capacity to deliver that clean power reliably.