Johnson Controls' project to make Hawaii's 12 airports more energy efficient is expected to save the state more than $500 million dollars in energy costs over the next twenty years. Johnson Control¿s Clay Nessler says the project is expected to reduce energy usage by 49-percent after the installation of more than 9,000 solar panels and 75,000 lighting fixtures. Nessler says for government buildings at all levels the most appealing aspect is no out-of-pocket cost to taxpayers because the project pays for itself with the utility bill savings.

More from Video

Inside Carnival's Mind Blowing New Horizon Cruise Ship (Video)

Inside Carnival's Mind Blowing New Horizon Cruise Ship (Video)

Jim Cramer: The 10-Year Yield Could Go to 2.75%

Jim Cramer: The 10-Year Yield Could Go to 2.75%

Elon Musk's Twitter Tirade Is the Dumbest Thing on Wall Street

Elon Musk's Twitter Tirade Is the Dumbest Thing on Wall Street

Replay: Jim Cramer on the Markets, 10-Year Yield, Oil Prices and Foot Locker

Replay: Jim Cramer on the Markets, 10-Year Yield, Oil Prices and Foot Locker

Video: You Could Live in a Ritz-Carlton or St. Regis Home

Video: You Could Live in a Ritz-Carlton or St. Regis Home