Special Report: How electric companies are transforming America's lighting

Utilities across the US are engaged in a massive program to cut the demand for energy - using lighting.  Electric companies see lighting as the easiest way to apply 'demand side management', effectively removing demand for energy and reducing the kilowatt hours they must produce. Ray Molony reports from Tulsa where the local electric company, the Public Service company of Oklahoma (PSO) has takend out over 300 million kilowatt hours using lighting. Lux Today newscast for 16 September 2015.