The Ceylon Electricity Board announced rotational power interruptions over three days, on the 19th, 20th and 21st, after a breakdown left the Lakvijaya Power Station unavailable and reduced generation.The CEB said the demand management cuts were temporary and strictly limited to the schedules below, with the island divided into four groups. Each group faces a one-hour interruption within the 4.30 pm to 9.00 pm window.October 19, 2026GroupSupply disconnectedSupply restoredDurationGroup 1Between 4.30 and 5.00 p.m.Between 5.30 and 6.00 p.m.1 hourGroup 2Between 5.30 and 6.00 p.m.Between 6.30 and 7.00 p.m.1 hourGroup 3Between 6.30 and 7.00 p.m.Between 7.30 and 8.00 p.m.1 hourGroup 4Between 7.30 and 8.00 p.m.Between 8.30 and 9.00 p.m.1 hourOctober 20, 2026GroupSupply disconnectedSupply restoredDurationGroup 4Between 4.30 and 5.00 p.m.Between 5.30 and 6.00 p.m.1 hourGroup 1Between 5.30 and 6.00 p.m.Between 6.30 and 7.00 p.m.1 hourGroup 2Between 6.30 and 7.00 p.m.Between 7.30 and 8.00 p.m.1 hourGroup 3Between 7.30 and 8.00 p.m.Between 8.30 and 9.00 p.m.1 hourOctober 21, 2026GroupSupply disconnectedSupply restoredDurationGroup 3Between 4.30 and 5.00 p.m.Between 5.30 and 6.00 p.m.1 hourGroup 4Between 5.30 and 6.00 p.m.Between 6.30 and 7.00 p.m.1 hourGroup 1Between 6.30 and 7.00 p.m.Between 7.30 and 8.00 p.m.1 hourGroup 2Between 7.30 and 8.00 p.m.Between 8.30 and 9.00 p.m.1 hourConsumer advisory:The demand management capacity assigned to any group may change with real-time demand, available generation and weather conditions.Actual disconnection and restoration times are subject to a variance of 30 minutes from the times shown.Areas affected under each groupConsumers can check which group their area falls under using the grid substation and feeder number that supplies it.Group 1: Ambalangoda (1, 2, 3, 5); Athurugiriya (1, 2, 3, 4, 6); Balangoda (2, 3, 4, 5, 6, 7, 8, 10); Beliatta (2, 3); Deniyaya (1); Embilipitiya (5, 7, 8); Habarana (1, 6); Hambantota (5, 11); Horana (2, 3, 12); Kalutara (3, 6, 7); Kegalla (2, 7); Kegalle (4); Kesbewa (1); Kiribathkumbura (2, 4, 6, 7, 9, 11); Kosgama (2, 3, 6); Matara (2, 3, 7, 8, 10, 11); Mathugama (2, 3, 6, 7); Naula (2, 3, 7); Nawalapitiya (1, 6, 7, 8); New Galle (1, 3, 8, 11); Pallekele (1, 10); Panadura (1, 2, 8, 9); Polonnaruwa (1); Ragala (8); Ratnapura (1, 3, 4, 6, 8); Seethawaka (1, 5); Thulhiriya (5, 6); Ukuwela (1, 2, 5, 9); Valachchenai (2, 4); Kurunegala (2, 8, 10); Maliboda (2); Wewelwatta (1, 2, 5, 6, 7); Wimalasurendra (4, 6, 7)Group 2: Ampara (1, 2, 6, 7, 8, 9); Aniyakanda (3, 4, 6, 7); Anuradhapura (1, 2, 9); Badulla (1, 3, 4, 6); Biyagama (7, 12, 14); Bolawatta (4, 5, 7); Chilaw (3, 12); Chunnakam (12); Dehiwala (3); Kappalthure (3); Katunayaka (1); Kelaniya (2, 5); Kerawalapitiya (1, 2); Kilinochchi (3, 6, 8); Kolonnawa (17, 18); Kolonnawa old (8); Kotugoda (6, 9, 10, 11, 12, 13); Mahiyanganaya (2, 8); Maho (1, 3); Mannar (1); New Anuradhapura (4, 6); Nuwara_Eliya (1, 3); Pannala (4, 5); Pannipitiya (1, 2, 9); Puttalam (4, 7); Ratmalana (2, 7, 9); Sapugaskanda (0, 3, 4, 9); Sri_Jpura (2, 3, 9); SUB A (A-5); SUB C (C 1, C 3, C-4); SUB I (I 5, I-7); Trincomalee (1, 2); Vavunathivu (7); Vavuniya (1, 3, 6); Veyangoda (6, 10)Group 3: Ampara (3, 4, 5, 10); Aniyakanda (1, 5); Anuradhapura (6, 7, 8); Badulla (5, 7, 8); Biyagama (10, 11); Bolawatta (2, 3, 8, 10); Chilaw (2, 5, 8, 9); Chunnakam (6, 7, 8, 9, 10, 11); Dehiwala (6, 7, 8); Kappalthurai (4); Kelaniya (1, 3, 4); Kerawalapitiya (8); Kilinochchi (1, 2, 4); Kolonnawa GIS (6); Kotugoda (1, 3, 8); Mahiyanganaya (1, 3, 4, 6, 7); Mannar (2, 4); Monaragala (1, 8); New_Anuradhapura (5, 7); Nuwara_Eliya (2, 8); Pannala (2); Pannipitiya (8, 12); Ratmalana (3, 4, 5); Sapugaskanda (7, 8, 11); Sri_Jpura (1, 4, 8); SUB C (C-09, C-10, C-15); SUB I (I-8, I-11, I-15, I- 13); Sub I (I-17, I- 1); Sub M (M-2, M-13); Sub N (N- 8, N- 9, N- 10, N- 18); Trincomalee (3, 5, 6); Vavunathivu (1, 2, 5); Vavuniya (2, 4, 5); Maho (5, 6, 8); Veyangoda (3, 4, 5, 7, 8)Group 4: Ambalangoda (6, 7 (G1), G2); Athurugiriya (5); Balangoda (1); Beliatta (1, 4, 5, 6, 7, 8); Deniyaya (3, 4, G1, G2); Embilipitiya (1, 4, 6); Habarana (3, 5, 7); Hambantota (4, 6, 8); Horana (7); Kalutara (4, 5, 8); Kegalle (1, 6, 8); Kesbewa (3); Kiribathkumbura (1, 3, 5, 8, 12); Kosgama (1, 5, 8); Matara (4, 6, 9, 12); Mathugama (5, 8, 10); Naula (6); Nawalapitiya (2, 5); New Galle (2, 5, 6, 7, 9); Pallekele (9, 11); Panadura (3, 6, 7); Polonnaruwa (4, 8); Ragala (1, 2); Ratnapura (2, 5, 7); Seethawaka (8); Thulhiriya (2, 3, 4, 8, 9); Ukuwela (3, 4, 6, 8, 11, 12); Kurunegala (3, 4, 5, 11); Valachchenai (1, 5); Wimalasurendra (5)