On August 19, 2025, EKO Instruments USA announced that it has entered a sponsorship agreement with UC Berkeley's solar car team, CalSol. This partnership spans the 2026 and 2027 racing seasons, during which EKO Instruments will supply advanced scientific sensors to facilitate real-time performance monitoring for CalSol's solar vehicles during competitive racing events.
EKO Instruments’ sponsorship entails providing the CalSol team with three distinct types of sensors: the MS-80S Pyranometer, HF-01S Heat Flux Sensors, and PT-100 Temperature Sensors. These instruments have been specifically chosen to measure key parameters such as solar irradiance, heat flux, and temperature data. The objective is to deliver accurate, live environmental readings which can significantly impact racing strategies.
During competitions, including prestigious events like the Formula Sun Grand Prix (FSGP) and the American Solar Challenge (ASC), real-time data will allow CalSol’s team to dynamically adjust their tactics based on changing solar conditions throughout race day. This real-time adaptation is essential for optimizing vehicle performance and ensuring that the team achieves its best possible outcome.
The Sensors at a Glance
- - MS-80S Pyranometer: This sensor is classified under ISO 90602018 Class A, making it highly reliable for fast and accurate solar measurement. Its calibration is accredited by ISO-17025, providing confidence in its performance over a five-year span without needing recalibration.
- - HF-01S Heat Flux Sensors: Compact and easy to utilize, these sensors measure heat flux, making them highly suited for various engineering and research applications.
- - PT-100 Temperature Sensors: Featuring superior accuracy (better than 0.15°C), the PT-100 is designed for precise temperature measurements vital for photovoltaic (PV) system assessments. They are easily attachable to PV modules due to their high-temperature adhesive backing, along with provisions for effective temperature reading.
Calvin Lee, the Engineering Director of the CalSol team and a Chemistry and Computer Science junior, expressed his enthusiasm about the partnership, emphasizing the unmatched reputation of EKO Instruments in solar measurement. He noted, "We are confident that our team will never miss a beat on race day. Every detail, including measurement, counts."
In reaction, Wayne Burnett, Chief Strategy and Technology Officer of EKO Instruments USA, stated, "We are proud to support CalSol in their pursuit of innovation in solar power and in raising awareness of clean energy technology. By equipping them with high-precision environmental sensors, we aim not only to enhance their race performance but also to cultivate future leaders in the clean energy sector."
About EKO Instruments
Founded over 95 years ago in Japan, EKO Instruments is renowned for its precision in solar energy measurement and environmental science. The company provides an array of solutions worldwide, showcasing a commitment to quality and continuous innovation. EKO Instruments was the first solar sensor manufacturer to obtain ISO 17025 accreditation for its international testing and calibration laboratory, reflecting the reliability of its measurement instruments.
About CalSol
CalSol is a student-run organization dedicated to designing, building, and testing fully solar-powered vehicles. Since its inception in 1990, it has produced several solar vehicles, earning multiple awards and delivering impressive performances in international competitions like the FSGP and the American Solar Challenge. Their current project, the eleventh-generation solar vehicle, builds on the accomplishments and experiences of the team’s previous designs.
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