Immediate measures include setting the air-conditioner at 25C or higher, managing operating times for air-conditioning, lighting and lifts and unplugging or turning off non-essential equipment when not in use, the National Environment Agency said in a statement on Wednesday.

Singapore is the latest addition to a slew of countries around the world taking measures to ensure a steady supply of energy and save energy.

South Korea is weighing widening driving restrictions to cushion the impact of the Iran war, while government offices in the Philippines shortened their work week to save energy, with agencies ordered to cut use of electricity and fuel costs by 10% to 20%.

Singapore had earlier warned of costlier power bills in the coming months as fuel prices are expected to remain elevated in the foreseeable future due to the extensive disruption to oil and natural gas production and shipping in the Middle East.