The Andaman & Nicobar Islands, one of the Union Territories (UTs) of India, are an archipelago of over 572 Islands, in the Bay of Bengal. The capital of the UT, Port Blair is about 1,200 km from the mainland cities of Chennai and Kolkata. Out of total 572 islands, 37 islands are inhabited. Of which 19 inhabited islands has been electrified and remaining inhabited islands are electrified by captive power plants of agencies like Armed Forces, Police, Lighthouse & Lightships and Forest Department.
Most of the population is concentrated in South, Middle and North Andaman Islands. Majority (85%) of the population are in the rural areas.
The power generation and distribution system of Andaman and Nicobar islands is served by standalone systems and each island has its own generation & distribution system.
Cumulative Generation Capacity is around 109.45 MW in various Islands of Andaman & Nicobar. Out of the total generating capacity, the Diesel based generation is around 99.2 MW, Hydro based generation is around 5.25 MW and Solar PV generation is about 5.0 MWp. However, out of the 99.2 MW DG capacity, about 51.745 MW of DG capacity have outlived their lives thereby making the effective DG available capacity as 47.465 MW.
The consumer base in the islands largely comprises of domestic consumers which account for 83% of the total consumer base. Due to geographical isolation and limited industrial growth in the islands, the consumption of electrical energy is limited. There are no un-electrified rural or urban households in the islands except few remote & inaccessible households in the protected forest areas.
Electricity Department of Andaman and Nicobar (EDA&N) Islands is responsible for managing the generation sector. Since the islands are disconnected from the mainland of India, generation in the individual islands are managed by isolated Diesel generating stations and associated distribution systems.
The power generation in Andaman & Nicobar Islands is through 53 Power Plants in 19 inhabited Islands, out of which 12 Power Houses are in North & Middle Andaman, 16 Power Houses in South Andaman and 25 Power Houses in Nicobar District.
Petronet LNG has proposed to install a 30 MW (expandable to 50 MW) LNG based generation plant in south Andaman Island in recent future to reduce the consumption of diesel in the island.
The power distribution system of Andaman and Nicobar Islands is a Stand Alone System, with each island having its own distribution system. The South, Middle & North Andaman islands have a 33 kV distribution and no transmission system while other islands have 11 kV distribution system.
Andaman and Nicobar Islands meet 10% of the energy requirement through renewable energy sources comprising of small hydro and solar power plant in the Andaman region.