New Delhi, India – India’s Ministry of Environment, Forest and Climate Change has granted forest clearance for the 1,200-megawatt Kalai-II hydroelectric project in the northeastern state of Arunachal Pradesh, a decision that has drawn attention from conservationists due to the potential threat to the critically endangered White-Bellied Heron (Ardea insignis).
The project, located on the Lohit River, a tributary of the Brahmaputra, has been under environmental review for years. The clearance, issued under the Forest (Conservation) Act of 1980, allows the project developer to divert approximately 120 hectares of forest land, including crucial riparian habitats. This decision marks a significant milestone for the project, which is part of India’s broader push to expand its hydropower capacity to meet growing energy demands and achieve 500 GW of non-fossil fuel energy capacity by 2030.
Environmental Concerns Persist
The primary environmental flashpoint revolves around the White-Bellied Heron, a large, solitary wading bird with a global population estimated at fewer than 250 mature individuals. The species is listed as “Critically Endangered” on the International Union for Conservation of Nature (IUCN) Red List. The Lohit River basin is one of the few known strongholds for the heron in India, making the project’s location particularly sensitive.
Conservationists argue that damming the river and altering its flow regime will degrade the heron’s preferred habitat—fast-flowing, shallow river margins and gravel bars. “The clearance appears to overlook cumulative impacts,” said a biologist familiar with the region, speaking on condition of anonymity. “We are not just looking at one construction site; habitat fragmentation from associated infrastructure like access roads, power lines, and worker colonies can render large stretches of river unsuitable for this bird.”
The forest clearance letter, reviewed by sources, includes specific conditions to mitigate these risks. The project developer is required to implement a “White-Bellied Heron Conservation and Management Plan,” which includes funding for regular monitoring, habitat restoration, and establishing a conservation reserve outside the project area. However, critics question the enforceability of these conditions, citing previous hydropower projects where mitigation measures failed to prevent species decline.
Balancing Energy Security and Biodiversity
The Kalai-II project is a centerpiece of the Government of India’s strategy to develop the country’s vast northeastern hydropower potential, estimated at over 60,000 MW. Proponents argue that hydropower is a flexible, renewable energy source essential for stabilizing the national grid, especially as solar and wind energy faces intermittency challenges.
Officials at the Ministry of Power have previously stated that the Kalai-II and similar projects are critical for providing affordable, round-the-clock power to the region and for exporting surplus energy to Bangladesh and other neighboring countries. “Hydropower projects like Kalai-II are not just about electricity; they are about flood moderation, irrigation, and economic development in one of the most underdeveloped regions of India,” a senior ministry official noted.
Yet, the timing of the clearance has raised eyebrows among environmental watchdogs, particularly as India faces increasing global scrutiny over its environmental compliance. A 2023 report by the Comptroller and Auditor General of India found that over 40% of hydropower projects in the state had failed to comply with existing environmental safeguards.
The Road Ahead
With the forest nod secured, the project still requires wildlife clearance under the Wildlife (Protection) Act and a final appraisal from the Forest Advisory Committee before construction can begin. The developer hopes to start civil works within the next year. The National Green Tribunal has also listed a petition challenging the clearance, which could delay construction.
The case of Kalai-II illustrates the persistent tension between India’s renewable energy ambitions and its commitments under the Convention on Biological Diversity to halt biodiversity loss. As the nation races to add 80,000 MW of hydropower by 2030, project planners and regulators face mounting pressure to demonstrate that development and conservation can coexist.
Conclusion
The forest clearance for the Kalai-II hydroelectric project represents a pivotal moment for India’s energy policy and its biodiversity stewardship. While the project promises to boost clean energy capacity and regional economic development, the unresolved status of the White-Bellied Heron casts a long shadow. The ultimate success of the project will be measured not just in megawatts generated, but in whether the conditions of the clearance effectively safeguard one of the world’s rarest bird species. All eyes will now be on the implementation of the conservation plan and the decisions of the National Green Tribunal, which will determine whether this development path proves sustainable in the long run.