ECONOMYNEXT – Sri Lanka energy firm WindForce said its 5MW floating solar power plant developed by subsidiary Diyajanani, and a grid-scale, standalone Battery Energy Storage System (BESS) developed with Vidullanka are to be commissioned today.
The 10 MW/40 MWh BESS facility in Anuradhapura, developed through StoreX (Pvt) Ltd, is the first of 13 BESS facilities that will collectively provide 130 MW/520 MWh of energy storage capacity.
The floating solar plant is expected to generate approximately 9 GWh of renewable energy annually, WindForce said in a market filing.
“Following the commissioning of these projects, WindForce PLC’s total renewable energy generation capacity has increased to approximately 268 MW.”
Storex is a joint venture entity in which Vidullanka holds a 49 percent equity stake in partnership with WindForce.
The remaining 11 facilities under Storex are at “advanced stages of completion” and wilt be commissioned progressively Vidullalka said.
In addition to the 12 Storex facilities, the Group is co-developing an additional 1OMW / 40MWh BESS facility at Vavunathivu under its existing joint venture, Solar Universe (Pvt) Limited.
“Together, these initiatives establish an aggregate 13OMW / 520MWh utility-scale battery storage footprint
across l3 locations in Sri Lanka, representing the largest energy storage development in the country to date,” Vidullanka said.
Operating with a 4-hour battery discharge capability, these systems provide critical fast-frequency response, peak load shifting, and voltage regulation to the National Systern Operator (NSO).
“This significantly enhances grid absorption capacity for intermittent solar energy while minimizing renewable curtailment.”
BESS operations generate revenue under structured capacity charges, providing stable, non-weather-dependent cash flows that hedge the Group’s broader generation portfolio against hydrological variations, Vidullanka said.
(Colombo/Sep18/2026)