Diageo Lebanon Distillery

Carbon Neutral Distillery.

Diageo is the world’s largest spirits producer, and when the company decided to build a new distillery in Kentucky, it selected Gray as its partner for this project.

  • Location
    Lebanon, KY
  • Square Footage
    72,000 s.f.
  • Operational
    22 months
Diageo Lebanon Distillery
Lebanon, KY
72,000 s.f.
22 months

Gray was selected to perform fully integrated services on the 72,000 s.f. bourbon distillery and dried grain facility. The facility features an automated distillery process including a granary, mash cooking, fermentation distillation, and barrel filling. Through the Gray family of brands, complete turnkey solutions have been integrated into this project.


Gray Solutions, a Gray company is currently overseeing the process along with the automation & controls of the project, which includes an automated distillery process consisting of a granary, mash cooking, fermentation distillation, and barrel filling. As the process integrator for the Diageo Lebanon Distillery project, Gray Solutions is responsible for the development of the mass and energy balances, PFD and P&ID development, equipment general arrangements and stack-ups, process equipment procurement, and vendor management. Gray Solutions is also providing the overall manufacturing network architecture design, installation, and integration with the business LAN. The manufacturing network will pass critical process data across the two separate networks for upstream ERP integration.


In addition, Gray Solutions is providing the manufacturing network hardware, software, I/O panels, PLC coding for the grain handling and processing, mash cooking and cooling, fermentation, distillation, integration with the barrel filling unit operation as well as DDGS process operations. Gray Solutions has turnkey responsibility for the distillery and dry house operations based on sequence of operations, process safety considerations, automation and process and utility systems commissioning and start-up.


Diageo recently announced the 10M proof gallon distillery will be carbon neutral when production begins in the first half of 2021. Taking its sustainability objectives to an even higher level of commitment, no fossil fuels will be consumed for the bourbon production.


“Gray is proud to play a role in the carbon neutral efforts happening at the Diageo Lebanon facility,” said Stephen Gray, president and CEO of Gray. “Diageo’s commitment to sustainability will no doubt impact and challenge the industry toward advancement.”


The new bourbon distillery and Distillers Dried Grains (DDG) process will be situated on approximately 144 acres in Marion County and will produce up to 10 million proof gallons per year.

Explore Services

  • Process & Packaging Systems Engineering

    Civil/Building Engineering

    Mechanical/Electrical Engineering

  • Architecture


    Sustainable Design

  • Pre-Construction



  • Automation & Controls

    Production-First IT



  • Fabrication

    Skid Systems


  • Feasibility Studies


    Incentive Coordination

    Land Acquisition

    Construction Financing

    Build-to-Suit/Sale Leaseback

  • Master Planning

    Front-end Services

    Strategy Consulting

"Diageo is pushing the envelope to demonstrate their commitment to the environment. We are supporting their initiatives by implementing controls and automation solutions to maximize operational efficiencies and minimize waste at their new Lebanon distillery."
Walker Mattox, Chief Executive Officer, Gray Solutions, A Gray Company

About Gray

Gray is a fully integrated service provider deeply rooted in engineering, design, and construction services for the world’s leading companies.