A New, Promising CSP Goes Into Trials From SolarFlux

US based Solarflux Energy Technologies, Inc. has announced the start of field trials of an improved design FOCUS solar thermal parabolic dish concentrator. The trials are intended to demonstrate the solar-to-thermal conversion efficiency and operational reliability of the updated FOCUS concentrator. The trials build on the previous successful field trials of an advanced prototype of the FOCUS from 2021, which demonstrated 72% solar-to-thermal conversion efficiency. This solar-to-thermal conversion efficiency is comparable to best-in-class solar-to-thermal conversion performance from alternative concentrating solar power (CSP) systems such as parabolic trough. However, unlike alternative CSP technologies, the FOCUS is a full two-axis tracking device. As such, it maintains perfect alignment with the sun from sunrise to sunset at all latitudes, thereby delivering maximum conversion efficiency throughout the day, and year-round. As a result, the annual energy yield from the FOCUS is significantly above that of alternative solar energy systems, outperforming parabolic trough by up to 50% or more, depending on the system’s peak capacity and site location.

The improved design of the FOCUS centers on design-for-manufacturing improvements and encompasses all aspects of the FOCUS parabolic dish concentrator with particular emphasis on the parabolic mirror, tracking mechanism, and control hardware and software. The new FOCUS employs a novel monocoque parabolic mirror structural design and a vision-based intelligent adaptive tracking system, amongst a host of other improvements. Additionally, design for rapid deployment and calibration of the FOCUS received significant attention with the inclusion of alignment features to support precision assembly in the field, and an automated calibration procedure utilizing the sensor suite built into the FOCUS.

 

“We are excited to begin testing of the improved FOCUS concentrator. This design incorporates a host of improvements that overcome past challenges with parabolic dish concentrator reliability and cost. With this design we capture the best-in-class performance offered by parabolic dish in a cost-competitive package – a combination previously not thought possible” – John Fangman, CTO, co-founder and principal engineer

Successful completion of the field trials – anticipated to conclude in late 2023 – will validate the performance of a low cost, scalably manufacturable parabolic dish concentrator – the most efficient of all solar energy collection technologies.

The FOCUS offers a low-cost, low-maintenance, zero-emission, modular thermal energy solution for a variety of use cases, including industrial process heat, water desalination and purification, space heating and cooling, hot water, and remote power generation.

Solarflux was founded in 2019 by a team dedicated to developing innovative technologies to help sustainably meet the growing energy demands of modern human civilization. The Solarflux team believes that parabolic dish concentrators offer unique potential to bring clean, inexpensive energy to a wide range of underserved market segments, particularly in regions of the world with an abundance of direct sunlight. Key application areas include including hot water, space heating and cooling, industrial process heat, electricity generation, water purification and desalination and remote power generation.

Solarflux is backed by the Met-Ed Penelec Sustainable Energy Fund, Ben Franklin Technology Partners of Northeastern Pennsylvania and private investors.