Cambodia sets a 70% renewable power capacity target for 2030

The 70% figure refers to installed capacity

Rottanak said renewables already represent more than 63% of Cambodia’s domestic installed generation capacity, led by hydropower and solar. The government wants that share to reach at least 70% by 2030. Installed capacity is not the same as the share of electricity actually generated or consumed over a day or a year. Hydropower output varies with water conditions, solar production changes through the day, and Cambodia also operates within a wider system that includes imports and transmission constraints. A larger renewable fleet therefore needs enough flexibility to move electricity from periods of surplus to periods of higher demand.

For practical context, see Cambodia economy and finance. This development also connects with Cambodia CDC reviews seven projects worth about $450m.

Storage is becoming part of the expansion plan

At Clean Energy Week 2026, the minister said Cambodian companies were on course to deliver more than 1,100 MW of solar capacity in a major project cluster by the end of 2026, paired with 500 MW of battery storage. Those figures describe projects expected to be delivered, not capacity that should be treated as already operating.

A separate Asian Development Bank project provides another concrete example. In June, ADB approved a $63.44 million financing package for a 250 MW/500 MWh battery energy storage system at the Takeo substation south of Phnom Penh. The bank says the project is designed to strengthen grid stability, manage peak loads and make it easier to integrate more renewable electricity.

Cambodia has also begun construction of the 1,000 MW Upper Tatay pumped-storage hydropower project. Pumped storage can absorb surplus electricity and release it when demand rises, giving the system another tool for balancing a larger renewable fleet.

A national target does not set the tariff in a neighbourhood

More renewable capacity combined with storage can improve the resilience and flexibility of Cambodia’s power system if the projects are completed and integrated as planned. It does not, by itself, promise lower electricity bills, uninterrupted supply or the same service quality in every province and district.

For a resident or business choosing a location, local grid performance and connection conditions remain more immediate indicators than the national percentage. The 2030 target is useful as a sign of where Cambodia’s power system is heading, while the day-to-day result will depend on the delivery of specific generation, storage and transmission projects.