American-Made Challenges


Lighting Prize (L-Prize)

The L-Prize will advance the state-of-the-art in LED lighting.
Manufacturing and Installation Phase Rules Webinar
$12.2 Million Total Prize Pool


The Lighting Prize (L-Prize) is designed to advance the U.S. clean energy economy for next-generation LED lighting, encouraging innovators and researchers to engage in advanced lighting system development that leads to transformative designs, products, and impact. The L-Prize will reward innovations that move rapidly to improve lighting performance, resulting in energy, carbon, and cost savings for American businesses and consumers.

The first Lighting Prize was awarded by the U.S. Department of Energy (DOE) in 2011, recognizing a high-efficiency LED replacement for the traditional 60-watt A19 incandescent bulb. Today, commercially available LED lights are competitive with all other lighting technologies, but the full technical and application potential of solid-state lighting (SSL) still far exceeds today’s products. Advanced interoperable lighting systems have the potential to better manage lighting energy use, integrate with other building systems, streamline maintenance and operations, and even respond to electric grid signals, increasing the value and resiliency of buildings. The L-Prize, a successor to the first Lighting Prize, seeks to unlock the additional potential to combine high-luminaire efficacy with exceptional lighting quality, data-driven control and functionality, innovative design, construction, and grid flexibility for the future of illumination in commercial and institutional buildings. In addition all of the technical areas in the L-Prize carry with them an overarching commitment to driving equity, accessibility, and resilience in the design and deployment of luminaires and connected systems.

The L-Prize targets commercial sector lighting, which accounts for about 56% of national lighting energy use and challenges lighting innovators to develop solid-state lighting (SSL) systems with breakthrough lighting energy efficiency, quality, functionality, and sustainability. SSL technology has the potential to bring widespread deployment of lighting products with exceptional energy efficiency, connectivity, control capabilities, and visual quality that are affordable and accessible to a wide range of businesses and consumers.

DOE’s Building Technologies Office invites lighting innovators to participate in this new competition to bring tomorrow’s lighting into today.

Winning systems must demonstrate exceptional achievement across six distinct categories. Through the challenging criteria within these categories, the competition can directly influence the equity, accessibility, and resilience benefits of advanced lighting systems.

Prize Structure

The L-Prize consists of three distinct phases that will award a total of up to $12.2 million. 

  1. The Concept Phase invited innovative concept proposals from potential competitors. COMPLETE
  2. The Prototype Phase invited prototype products, emphasizing technological innovation and presenting the opportunity and the challenge to think outside standard forms, materials, and price points of commercially available luminaires. COMPLETE
  3. The Manufacturing and Installation Phase will reward production and installation of real products meeting the L-Prize technical requirements.

Participation in the first two phases is not required to be eligible for the final phase, Manufacturing and Installation. 


Please review the official rules for the complete application process and instructions for competing.

If you want to receive updates on the prize, please subscribe by clicking the Follow button at the top of the webpage. Questions can be sent directly to  or posted in the Forum tab, so that others who have the same questions will be able to see the answers. 



Challenge Updates

Clarification Issued on L-Prize Rules

July 3, 2024, 8:48 a.m. PDT by Wendy Graves

The official L-Prize rules document has been posted with revisions noted in the Modifications Summary on p. 2. Download the updated rules document at

L-Prize Manufacturing and Installation Phase Resource List

May 21, 2024, 10:35 a.m. PDT by Wendy Graves

The L-Prize is compiling a resource list to facilitate connections between potential entrants and supporting entities for the Manufacturing & Installation (M&I) Phase of the competition, which is currently open. For the M&I Phase, entrants must document the installation of their lighting solution in a real commercial building. While some entrants may prefer to identify their own installation sites, others may find it helpful to use the resource list to identify potential installation partners or host-sites. 

Potential competitors, installation partners, or host-sites interested in supporting an entrant can find out more about the resource list and response form at

L-Prize Manufacturing and Installation Phase Office Hours

May 16, 2024, 9:58 a.m. PDT by Wendy Graves

The L-Prize team is offering office hours to potential Manufacturing and Installation Phase entrants. These office hours provide an opportunity for potential competitors to ask questions about the competition rules and requirements and share feedback with DOE. The office hours will be hosted by DOE’s technical lead for the L-Prize, Pacific Northwest National Laboratory, and must be booked in advance. Each session will be limited to 30 minutes and will be attended by only one potential entrant (competitor or team) at a time. 

For more information about scheduling an office hours session, see

Now Streaming: L-Prize Manufacturing and Installation Phase Overview Webinar

May 13, 2024, 11:17 a.m. PDT by Wendy Graves

If you missed the L-Prize Manufacturing and Installation Phase overview webinar, or just want to review the information, you can access the webinar video and presentation slides here:

Manufacturing & Installation Phase Overview Webinar on May 8

April 25, 2024, 8:02 a.m. PDT by Wendy Graves
L-Prize Manufacturing & Installation Phase Informational Webinar, May 8, 2024, 2:00 pm ET.

Don’t forget to register for the L-Prize Manufacturing & Installation (M&I) Phase informational webinar on Wednesday, May 8, for an overview of the technical requirements, timeline, and more. 

  • L-Prize M&I Phase Overview (Register now) – Wednesday, May 8, 2:00–3:00 p.m. ET

The M&I Phase will reward production and installation of products that meet L-Prize technical requirements in real-world buildings. Up to four competitors earning the most points based on technical and design innovation, U.S. content, production, and installation will share an award of $10 million. Participation in the prior L-Prize phases is not required to enter the M&I Phase.