Patiala, June 16 -- Adding to the woes of Punjab State Power Corporation (PSPCL) amid sweltering heat and ongoing paddy sowing season, four thermal units in three plants across the state stopped functioning on Sunday. The interruptions have resulted in a power generation loss of 1,410 MW, which is nearly 25% of the total thermal power generation capacity (5,680MW). According to the daily report published by the Northern Regional Load Despatch Centre (NRLDC) on Sunday, four units were not able to operate uninterruptedly today due to 'boiler and turbine issues' and are likely to be functional by Tuesday. The PSPCL officials, on the condition of anonymity, said that one unit of the Talwandi Sabo thermal plant, operated by private sector, having a power generation capacity of 660 MW, shut down on Sunday due to boiler related issues. The official added that this unit couldn't be fixed and would be functional by Tuesday. At Goindwal Thermal Plant both units went offline on Sunday, the data revealed. PSPCL official said that one unit was down because of boiler issue while the other unit was non-functional because of a turbine issue. The power generation capacity of each unit of this plant is 270 MW. Additionally, one unit of Lehra Mohabbat Thermal Plant, having a capacity of 210 MW, was also non-functional due to a boiler issue and would start functioning by Tuesday. Confirming the hiccups, a senior official of PSPCL, pleading anonymity, said, "The non-functional unit of Talwandi Sabo thermal plant is likely to be functional by tomorrow (Monday) morning. Of the two non-functional units of the Goindwal thermal plant, one will be functional by tomorrow while the other unit will be functional by Tuesday. Similarly, the one non-operational unit of Lehra Mohabbat thermal plant will also be functional by Tuesday morning." As per the available data, PSPCL was drawing more than 10,000 MW from the northern grid (central pool). "When thermal plants operate continuously at their full capacity, boiler issues are likely to happen," a senior PSPCL official added. The above-quoted official said that in case the heatwave leads to a surge in the power demand on Monday, then things could get difficult. PSPCL officials said all the thermal plants had an adequate amount of coal, and the situation remains under control. Lehra Mohabbat has 19 days of coal stock, Ropar has 32, Goindwal 26, Rajpura 28, and Talwandi Sabo has 22 days of stock....