ANEEL (Advanced Nuclear Energy for Enriched Life)

In a joint press release, NTPC and CCTE announced that they are exploring the development and deployment of ANEEL (Advanced Nuclear Energy for Enriched Life) — a thorium-based fuel for Pressurised Heavy Water Reactors (PHWRs) in India. The initiative will be subject to approvals from the respective governments in accordance with prevailing national laws.

India currently deploys natural uranium oxide-based fuel in its fleet of PHWRs. This approach aligns with India’s long-standing three-stage nuclear power programme, optimising the utilisation of its limited uranium resources in a sustained and strategic manner.

India’s Three-Stage Nuclear Programme

1. Stage I: PHWRs using natural uranium as fuel, producing plutonium as a by-product.
2. Stage II: Fast Breeder Reactors (FBRs) using plutonium-based fuel to generate more fissile material.
3. Stage III: Thorium-based reactors aimed at utilising India’s vast thorium reserves.

Closed Fuel Cycle Approach

India follows a closed nuclear fuel cycle, wherein spent fuel is reprocessed to recover valuable fissile materials (such as plutonium and uranium) for reuse, particularly in the second stage of the programme. This reduces waste and enhances resource efficiency.

Expected Benefits of ANEEL Fuel

The proposed ANEEL™ fuel could:

• Enable the use of thorium in existing PHWR reactors
• Lead to significant reduction in long-lived nuclear waste
• Strengthen India’s energy security by utilising abundant domestic thorium reserves
• Enhance safety features and proliferation resistance