Assam and Meghalaya declined to purchase additional power from the Subansiri Lower hydro-electric project due to high tariffs.
The North Eastern Regional Power Committee (NERPC) held a meeting last month where the states expressed their concerns.
Punjab State Power Corporation Limited (PSPCL) had earlier refused its share of 16 MW from the project.
The Subansiri Lower power tariff is projected to increase from under Rs 2 per unit (2009) to over Rs 7 per unit (2026).
The project's cost has escalated from Rs 6,285 crores (2002) to approximately Rs 26,000 crores due to delays and other factors.
Three of eight 250MW units of Subansiri Lower have commenced commercial operation.
Detailed Insights:
The Subansiri Lower hydro-electric project, initially conceived as India's largest, faced suspensions between December 2011 and September 2019 due to local resistance and court cases regarding dam safety and ecological concerns.
Half of the power generated by Subansiri Lower is allocated to the north-eastern states, including 22% through 'firm' allocation, 13% as free power, and 15% through the unallocated central share.
Meghalaya is expected to receive around 200MW from its own Leshka Stage-II project, while the 210 MW Myntdu Leshka Hydro Electric Project Stage-II is expected to be commissioned in 2027.
Assam's allocated share from Subansiri Lower is 78 MW (10.4%) with an additional 7.5MW (1%) as free power, while Meghalaya's firm allocation is 19 MW (2.5%).
The NERPC has requested Assam and Meghalaya to present their justifications to the Central Electricity Authority (CEA) and the Ministry of Power for consideration.
Assam has communicated to the NERPC that the Assam Power Distribution Company Limited (APDCL) has already established power purchase agreements with upcoming plants to fulfill its long-term power demand.
Key Concepts Involved:
Hydro-electric project: A power plant that uses the energy of moving water to generate electricity.
Power Purchase Agreement (PPA): A contractual agreement between two parties, one generating electricity and one purchasing it.
Tariff: A tax or duty to be paid on a particular class of imports or exports.