The first will be set up at Kaloor, opposite to the Jawaharlal Nehru International Stadium, where the Kerala State Housing Board and the KSEB have sufficient land. The second sub-station is likely to come up at Muttom, near Aluva.
Detailed studies would be conducted before the Electricity Board and Metro rail reach an agreement on the finer points of the power supply agreement, sources said.
Cost of power will account for between 25 and 30 per cent of the operational cost of the Metro rail. Hence, the cost at which power is made available for Metro operations will be a crucial issue to be settled before the two utilities reach an agreement.
Metro rail has asked for power supply by 2015, when the project will be operational. Taking this into consideration, the KSEB may be in a position to meet the requirement as the government has finalised plans to increase power generation by another 460 MW soon.