The National System Control Center (NSCC) says measures are being taken to significantly reduce diesel-based electricity generation by the end of 2027 through the integration of large-scale battery energy storage systems into the national grid.
In response to an inquiry by Ada Derana, NSCC Chairman Dr. Pradeep Priyadarshana said the country aims to add approximately 750 megawatts (MW) of battery storage capacity to the national power system by the end of 2027, which would substantially reduce the need for diesel-powered electricity generation.
He noted that the installation of battery energy storage systems is already underway, with 160 MW of battery capacity having already been brought into the country and currently being installed.
In addition, tenders have been called to secure private sector investments for a further 250 MW of battery storage capacity, which is expected to be integrated into the national grid between March and April next year.
Dr. Priyadarshana also stated that tenders have been invited by the Ceylon Electricity Transmission Company (CEB Transmission), with financial assistance from the Asian Development Bank (ADB), to procure an additional 100 MW of battery storage capacity.
Furthermore, plans are underway to invite bids for the installation of battery storage systems at 150 MW of ground-mounted solar power plants.
According to the NSCC Chairman, the combined implementation of these projects will enable the national grid to reach a total battery storage capacity of around 750 MW by the end of 2027, thereby significantly reducing reliance on diesel for electricity generation.
He further noted that additional solar and wind power generation projects are currently being implemented for 2028 and 2029, and that integrating battery storage alongside these renewable energy projects would also help reduce the use of furnace oil for power generation.
Dr. Priyadarshana added that the initiative is expected to save between Rs. 30 billion and Rs. 35 billion annually, while the resulting cost savings could also be passed on to consumers through lower electricity tariffs.
