SMG's green upgrades have continued with new lighting in the Tulsa Convention Center. The new dimmable fluorescent bulbs are expected to save 700,000 kilowatt-hours annually, a 57% drop in energy use. The bulbs also give a more modern look to the building, and allow for different lighting moods depending on the needs of vendors. The project cost $52,000, and SMG and the BOK Center received a $71,000 incentive payment from the Public Service Company of Oklahoma. The additional money will be spent on further improvements.