According to the CEB, the restriction applies specifically to rooftop solar systems with a capacity exceeding 300 kW. These systems are required to remain offline until April 20, aligning with the extended holiday season and a forecast of consistently sunny weather conditions across the country.
The utility explained that the decision was taken to prevent potential imbalances in electricity supply. During holiday periods, nationwide power demand typically declines, while solar generation increases due to favorable weather. This combination can lead to excess power being fed into the grid, posing risks to its stability and reliability.
The CEB emphasized that maintaining a stable grid is critical to ensuring uninterrupted electricity supply. Officials noted that the temporary measure is a precautionary step aimed at avoiding fluctuations or disruptions that could arise from an oversupply of solar-generated electricity during a time of reduced consumption.
The move has drawn attention from renewable energy stakeholders, particularly large-scale solar operators, as it highlights the challenges of integrating high levels of renewable energy into the national grid without sufficient storage or demand-side management solutions.
The CEB has not indicated whether similar measures may be required in the future but reiterated that system stability remains a top priority as Sri Lanka continues to expand its renewable energy capacity.
