Dhaka, Nov. 4 -- Saint Martin's residents and businesses are facing higher electricity bills amid limited supply, with the commercial tariff rising to Tk 62 per unit as the island prepares for the tourism season.

The increase took effect on Nov 1. Blue Marine Energy Limited, which produces and supplies electricity on the island, has raised the residential rate by Tk 10 to Tk 52 per unit and the commercial rate by the same amount to Tk 62.

Acting Saint Martin's Union Council Chairman Faizul Islam has threatened legal action against the company over the increase.

Residents say the Bangladesh Power Development Board (BPDB) set up a generator-based power plant on the island in the 1980s, supplying more than 500 customers.

The facility was...