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Hawaii DOT
Preserving Paradise
The Hawaii Department of Transportation takes unprecedented steps to  improve airports, highways and harbors
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Challenge
At 2,500 miles from the nearest landmass, the islands of Hawaii are the most remote in the world. While abundant in sun, wind and rain, the islands currently rely on fossil fuels for 90% of their energy needs, at a cost three times higher than found on mainland. The state instituted a goal to rely entirely on renewable energy by 2045.
Solution

Hawaii’s Department of Transportation entered a strategic and technical partnership with Johnson Controls, on a series of Energy Savings Performance Contract, (ESPC). Hawaii’s DOT invested a total of $245M in energy-efficient upgrades – the largest single-state ESPC in the country.

  • The Airports Division is implementing $158M in improvements at 12 airports including lighting, HVAC systems, solar PV arrays and addressing deferred maintenance.
  • The Highways Division is implement $60M in improvements including LED street lighting and controls, HVAC systems and deferred maintenance.
  • The Harbors Division is implementing $27M improvements in custom high-mast, marine-grade LED lights and controls.
Results
The combined airport improvements will reduce electric utility bills by 49%. State highways are safer, brighter and more efficient – with expectations to generate 43% in energy savings.
 
Harbors are more efficient and safer, for both operations and wildlife. Over the contract term, the state will save more than $680M in guaranteed energy savings.
 
In addition, projects promote and support important Hawaiian initiatives like Hawaii’s Clean Energy Initiative (HCEI), the Governor’s Sustainability Plan for 100% renewable by 2045, and exceed Hawaii’s commitment to the Clinton Global Initiative Commitment to Action, and Hawaiian “Night Sky” legislation.
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