Jakarta held a 60-minute lights-out event on World Ozone Day, September 19, 2026, cutting carbon emissions by 74.23 tons of CO2e. State utility PLN reported electricity savings of 92.79 MWh and cost savings of Rp134 million, according to the Jakarta Environmental Agency. The event ran from 8:30 PM to 9:30 PM local time. The savings mark a 23.42% increase over a similar event in June 2020. Officials encourage residents and businesses to adopt energy-saving habits like turning off unused lights and appliances. The initiative shows how coordinated actions can produce measurable emission reductions, though one-hour events alone are modest. Repeating them consistently is key to meaningful long-term impact.
