Published: 10:16, 16 August 2019
| Updated: 12:02, 20 August 2019
National Grid has until the end of today to submit an interim report on last Friday's major power cut.
Nearly a million homes were affected by the "unprecedented power outages", including large parts of Kent.
Traffic lights stopped working, rail commuters faced huge delays, and a Medway shopping centre was evacuated.
The power cut also affected London and large parts of the South East region.
National Grid has said the problem was caused by issues with two power generators, which failed for around an hour.
Business and Energy Minister Kwasi Kwarteng has apologised for what happened and admitted it was "unacceptable".
While the interim report is due today, a full report is expected by September 6.