Your team chose a good topic relating to exit signs and energy efficiency. I actually work on energy efficiency programs in Multi-Family residences for Northern Illinois and EE is one of the most cost-efficient ways to lower our greenhouse gas emissions. EE jobs are the largest portion of energy jobs by far and over 2 million people in the country were employed in this sector pre-Covid 19. https://e2.org/reports/energy-efficiency-jobs-in-america-2019/
The consumer demand is definitely there for LED lighting, whether that be exit signs, TLEDs, regular A lamp bulbs, etc. But the upfront cost of purchase is oftentimes more of a barrier than it should be for short-sighted or cash-strapped property managers and business owners. When they are looking at overhauling entire buildings' lighting systems, the price tag could be thousands of dollars and the payback time could be a few years. Fortunately, in Illinois and in some other states, we have a great ratepayer-funded EE system set up where electric utilities like ComEd are able to offer lighting upgrades to customers for free or at highly reduced costs. Take a look at these programs from ComEd. https://www.comed.com/WaysToSave/ForYourHome/Pages/RebatesDiscounts.aspx They save customers money on their energy bill, but they also allow for ComEd's grid to work smarter, not harder. By lowering overall electric demand, ComEd doesn't have to build new infrastructure and can do more with their existing resources. Everybody wins.
To keep these programs alive and well, we need to make sure we're supporting legislation like the Clean Energy Jobs Act (CEJA). Illinois passed the Future Energy Jobs Act (FEJA) in 2017 to great success, and we need to continue letting our elected officials know we should fund programs like exit sign replacement that lower our energy demand and the carbon footprint of our state.
One thing I think your team should consider when explaining this pitch to people is - why is an LED more efficient/cost effective? I would suggest having a slide dedicated to showing how LED technology saves that energy and money. Incandescent bulbs lose most of their energy as heat (80%+), which is why you can't touch those lights without burning your hand. LEDs use a different process that doesn't give off lost energy as heat and it does not contain mercury, therefore it is also more efficient and safer than CFLs.
https://bfranklinhome.com/blogs/bfranklin/compare-led-cfl-incandescent-bulbs
Overall, great job and I'm glad that you're already interested in these types of things. I encourage you to continue your research on this and dig into the different technology of Incandescents, CFLs, and LEDs even more and with a wide lens on how to support EE programs.