Medically dependent consumers of electricity are people who depend on mains electricity for critical medical support such that a loss of electricity may result in loss of life or serious harm. People who qualify for this may require ventilators, oxygen concentrators, or ventricular assistance devices, with electricity suppliers having things that they must do to ensure that these people have the best possible access to electricity. Responding to electrical outages more quickly could mean the difference between life and death for some electricity consumers who are medically dependent on these machines. This highlights the fact that people's lives and businesses are becoming increasingly dependent on an uninterrupted supply of electricity. If response crews had access to flashing lights in every situation where congestion is a problem, response times would be reduced and would speed up power restoration considerably, particularly for those whose lives are put at risk.