Officials and representatives from Laos and POWERCHINA attend the impounding ceremony.
The Nam Ngum 4 Hydropower Project, undertaken by POWERCHINA, officially closed its gates to begin reservoir filling in Laos on Feb 1. The station now has preliminary reservoir storage and flood control capabilities, marking the transition of the project from construction management to operational management.
After the reservoir is filled, it is expected to reach its normal water level by May 2024. While the reservoir is being filled, POWERCHINA will arrange for dedicated personnel to carry out slope inspection and water level monitoring.
The normal water storage level of the reservoir is 1,040 meters, with a total storage capacity of 80 million cubic meters and a regulating storage capacity of 47 million cubic meters.
The hydropower station has an installed capacity of 3x80 megawatts, generating average annual power of 872×106 kilowatt-hours, with quarterly regulation performance.
