Sri Lanka’s installed solar power capacity has passed 3,070 MW, with solar now meeting around 15% to 25% of daily electricity demand, depending on weather conditions.
The National System Operator (NSO) said rooftop solar accounts for most of the installed capacity.
Around 2,542 MW of rooftop solar is connected under the Net Metering, Net Accounting and Net Plus schemes. Ground-mounted solar projects account for another 534 MW.
The NSO said solar capacity is still growing by around 25 MW to 30 MW each month through rooftop and ground-mounted projects that have already received approval.
Rooftop Solar Growth Reaches Grid Limits
The rapid growth of rooftop solar has now exceeded the rooftop capacity planned for 2026.
As a result, electricity distribution licensees, including EDL and LECO, have been asked to closely monitor new rooftop solar approvals and capacity additions.
The NSO described the measure as a temporary grid-security step, rather than a long-term restriction on renewable energy development.
However, the change means the pace of new rooftop solar connections will need closer control as the grid manages higher levels of solar generation.
Zero-Export Solar Systems Can Continue
Consumers can still apply for zero-export solar connections.
These systems allow users to store daytime solar generation in batteries and use the stored electricity during the evening and night.
The current limitations will not apply to zero-export systems.
New applications under the Net Plus scheme will also continue to be accepted.
The NSO also confirmed that solar projects approved before September 11, 2026 can proceed under their existing approvals.
1,392 MW of Solar Planned for 2027–2029
The NSO plans to facilitate another 1,392 MW of solar capacity between 2027 and 2029.
The planned additions include:
- 500 MW of rooftop solar
- 442 MW from small- and medium-scale projects
- 450 MW from large-scale solar parks
The NSO also plans to add around 1,240 MW / 4,660 MWh of battery energy storage capacity during the same period.
The planned battery capacity will support the wider use of solar power by storing electricity generated during periods of strong sunlight for later use.
Last modified: September 27, 2026
