The Solar Prize Round 6 semifinalists have been announced! The U.S. Department of Energy (DOE) has awarded $50,000 to 20 teams who will now advance to the Set! Contest. Additionally, two teams received a $25,000 prize for winning the optional Justice, Equity, Diversity, and Inclusion (JEDI) Contest, which encourages solutions that enable underserved communities to overcome systemic barriers to solar deployment.

The semifinalist teams moving on in Solar Prize Round 6 are as follows: 

Photovoltaics

  • Autonomous Cable-Free Anchoring for Floating Solar (Sausalito, California) – This team is developing autonomous motors for floating solar, replacing traditional anchors and mooring systems. This simplifies installation and reduces cost, redundant engineering for each project, and diving teams needed for installation. Learn more about their tech.
  • Clearing the Hurdle of High-Cost Agrivoltaics (Portland, Oregon) – This team is developing a high-clearance single-axis tracker for photovoltaic (PV) systems meant to be integrated into active farmland (agrivoltaics). By using raised cables to stabilize and move the panels, this technology lowers costs and uses less steel than traditional agrivoltaic racking systems. Learn more about their tech.
  • Crack Catcher AI (Klamath Falls, Oregon) – This team is developing a system of lasers and artificial intelligence (AI) to assess mechanical stress on PV cells, sensing and predicting fracturing. This will reduce defects that lead to reliability and quality issues, increase manufacturing yield, enhance long-term durability, and secure U.S. competitiveness in the PV market. Learn more about their tech.
  • Facilitating Snow Removal from Solar Panels (Toledo, Ohio) – This team is developing a durable strip coating that is applied to the lower edge of solar panels to help shed snow. By shedding snow from panels in a quick and low-cost way, solar plants continue to operate efficiently year-round. Learn more about their tech.
  • Ground-Based Mounting System for Rural Solar (Miami, Florida) – This team is developing a ground-based solar panel mounting system that can be assembled by anyone and connected by an electrician. This system is convenient for renters, rural households, and tribal areas, increasing solar adoption opportunities. Learn more about their tech. (JEDI Contest Winner)
  • Maximize Efficiency (Las Vegas, Nevada) – This team is developing a self-cleaning and chemically resistant nanocoating that prevents soiling of solar panels. This protection can increase panel efficiency and reduce panel maintenance costs. Learn more about their tech.
  • Retractable Solar Modules for Buildings and Beyond (Mountain View, California) – This team is developing a retractable PV shade screen for use in greenhouses. This provides on-site energy production for the greenhouses while also providing proper shade for plant production. Learn more about their tech.
  • The Beam Module: PreFab Solar for Commercial Roofs (San Francisco, California) – This team is developing a prefabricated solar panel with integrated racking for commercial flat roofs. This solution will reduce costs by eliminating on-site fabrication or assembly for faster installation, design, and permitting. Learn more about their tech.
  • Ultra-Thin, Flexible Solar PV for More Surfaces (San Diego, California) – This team is developing ultra-thin, flexible, crystalline silicon solar PV cells that can wrap around buildings and vehicles. The technology will enable low-cost installation for the vehicle-integrated PV market, offset needs for grid-charging electric vehicles, and expand access to renewable energy. Learn more about their tech.

Systems Integration

  • Grid-on-a-Chip: Accelerating Solar Interconnection (Sunnyvale, California) – This team is developing a grid simulation platform that enables faster feasibility studies for interconnecting solar and other renewable energy resources to the grid. With this platform, simulations that used to take days to complete can now be completed in a few minutes. Learn more about their tech.
  • Second Life Solar (Signal Hills, California) – This team is developing a method for testing the health of decommissioned electric vehicle batteries that can be completed in 30 seconds, speeding up the 10-hour process typical of existing technology. This allows for fast screening of used batteries and certification for use in grid-scale solar storage. Learn more about their tech.
  • World's Most Reliable Inverter (Cary, North Carolina) – This team is developing a low-cost inverter that combines efficient, older technology with new control techniques to create a fully sealed inverter design that uses natural cooling. This allows for higher reliability and performance for utility-scale solar compared to other inverters on the market. Learn more about their tech.

Concentrating Solar-Thermal Power (CSP)

  • Deployable Off-Grid CSP Desalination with MEDAD (Honolulu, Hawaii) – This team is designing an off-grid, small-scale CSP desalination system that harvests heat from the sun to produce fresh water. This modular, affordable, and efficient desalination system can deliver potable water to areas with freshwater shortages. Learn more about their tech. (JEDI Contest Winner)

Finance and Business Models

  • Hail Cat – Identify, Quantify, and Mitigate Hail Risk (San Jose, California) – This team is developing a web-based software platform that allows solar developers and insurance companies to identify, quantify, and prevent hail damage. This enables sound financial assessments of potential risk-mitigation strategies and a rational basis for insurance prices and terms. Learn more about their tech.
  • Shared Data, Smaller Queues, More Interconnections (Portland, Maine) – This team is developing a cloud-based, collaborative data and modeling platform for developers and utilities to use shared data, models, and maps to site and size solar energy projects. This software will result in faster approval times and fewer projects clogging the interconnection queue. Learn more about their tech.
  • SolarBound Build Confidence Build Trust Build Solar (Fort Collins, Colorado) – This team is developing an online marketplace for appraising solar land value and generating portfolios for developers. This tool could increase the percentage of successful solar projects by mitigating risks for developers and customers. Learn more about their tech.

System Operations

  • Autonomous Solar Panel Inspections (New York, New York) – This team is developing software to automate drone piloting of solar field aerial thermography scans. Automating this process can lower the cost of each scan report, increase the frequency of inspections, and collect more data to improve the performance of solar farms. Learn more about their tech.
  • Latimer Controls Enables Intelligent Solar Power (Boulder, Colorado) – This team is developing an intelligent control software that enables utility-scale PV to provide power reliably and on demand. This will replace grid reliance on fossil fuels, drive higher profitability for PV operators, and generate revenue increases for solar asset owners with low capital cost. Learn more about their tech.

System Design

  • Advancing Agrivoltaics (Chicago, Illinois) – This team is developing a software that allows solar developers to optimize solar panel configurations on agrivoltaics sites. Their software estimates energy output from solar panels and the amount of sunlight crops receive, and helps maximize revenue for both solar developers and farmers. Learn more about their tech.
  • LEAF Solar Design Assistant (Akron, Ohio) – This team is developing a computer-aided design plugin that automates layout design of utility solar sites for solar engineers. This decreases the manual redrawing of strings for each project, reducing labor hours and costs. Learn more about their tech.

Learn more about each semifinalist submission.

Additional Funding Opportunities

If you submitted an idea and were not chosen as a semifinalist, we encourage you to keep innovating and looking for opportunities to improve your idea. In the coming weeks, you will receive an email from the prize administrators with comments and feedback on your submission from the reviewers.

We also suggest exploring funding opportunities through DOE’s Small Business Innovation Research and Small Business Technology Transfer (SBIR/STTR) funding program. Through SBIR/STTR, small businesses can receive funding for engaging in high-risk, innovative research and development with the potential for commercialization. 

Thank you to everyone who applied for Solar Prize Round 6. We hope you will continue to utilize the American-Made Network to improve your ideas and watch for other opportunities to make them a reality by signing up for our American-Made Newsletter or following us on LinkedIn and Twitter. Should you have questions, please feel free to reach out at solar.prize@nrel.gov. 

Congratulations, again, to the Round 6 semifinalists!