Hydroelectricity/wind account for 50% of electric needs
By Paneetha Ameresekere
Cheap and clean electricity powered by hydroelectricity and wind together provided more than half of Sri Lanka’s electricity needs for 13 consecutive days to 5 Saturday for the first time in 579 days, Ceylon Electricity Board (CEB) data showed. The last time ‘hydro’ and ‘wind’ together provided 13 consecutive days which met over 50 per cent of Sri Lanka’s electricity needs was a year and a half ago from 12 October 2019 to 4 November 2020..
Meanwhile, on 5 Saturday, ‘wind electricity’ and ‘hydroelectricity’ together provided 72.89 per cent of Sri Lanka’s total electricity needs, followed by CEB thermal coal 25.88 per cent and oil 0.21 per cent, respectively. Coal and oil are environmentally pollutive imported substances. CEB doesn’t give the amount of electricity provided by solar, another clean and cheap source of electricity.
Segmentalising the production of hydroelectricity on Saturday, Mahaweli provided 13.28GWh or 40.58 per cent of Sri Lanka’s total electricity needs on that day, Laxapana 5.92GWh (18.09 per cent), Kukule Ganga 1.83GWh (5. 60 per cent), Samanala Wewa 1.24 GWh (3.80per cent) and CEB (small hydro)0.19GWh (0.60per cent), respectively.
Meanwhile, ‘Wind’ provided 1.39GWh (4.24per cent) of Sri Lanka’s total electricity needs on 5 Saturday. According to Central Bank of Sri Lanka’s (CBSL’s) Annual Report 2020, the cost of producing one unit (one kWh) of hydroelectricity last year was a mere Rs 2.32, however, the production of CEB thermal coal electricity was more than four times that cost at Rs 9.81 a unit and CEB thermal oil electricity 13 times the cost of hydroelectricity at Rs 29.94 a unit.