Storage in major reservoirs below capacity


Despite the directives to increase thermal and hydropower generation, the Ceylon Electricity Board’s (CEB) power system report revealed that only about 40 per cent of total hydropower storage in major reservoirs generates nearly 440 GWh.

The total capacity of the island’s six major reservoirs is also below capacity, according to the report.

The report also cited that the present level below spill in Castlereagh is 9.61 metres, 15.15 metres in Maussakalle, 16.30 metres in Kotmale, 27.41 metres in Victoria, 3.32 metres in Randenigala, and 12.01 metres in Samanalawewa.

The six major reservoirs have a combined capacity of 36.6 per cent, generating 441.4 GWh. Thus, hydro generates 13.42 GWh, thermal generates 33.71 GWh, solar (batch) generates 0.26 GWh, wind generates 1.26 GWh, and biomass generates 0.26 GWh.

According to this estimation, hydropower contributes only 27.43 per cent to the national grid, while thermal power contributes only 68.92 per cent.

Due to a breakdown at the Norochcholai Power Plant, the Public Utilities Commission of Sri Lanka (PUCSL) has directed the CEB to increase thermal and hydropower generation.

The PUCSL has issued instructions to maintain the present daily power cut of 3 hours and 20 minutes without increasing it. On 3 May, a 270 MW generator at the Norochcholai Power Plant failed.

The generator will take another five days to restore, according to Minister of Power and Energy Kanchana Wijesekera.

By Thameenah Razeek