VDE verifies GameChange Solar’s Hailstow system

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GameChange Solar's Genius trackers.
The Hailstow system was tested over the course of three days in Arkansas. Image: GameChange Solar.

VDE Americas, the US subsidiary of German technology company VDE, has verified the successful deployment of the hail mitigation function of GameChange Solar’s Genius trackers at a study site in the US state of Arkansas.

The testing involved assessing the Genius trackers’ HailStow system through six storms that passed over the site over three days. The system aims to use real-time weather data to give plant operators warning that they should move their trackers into stow position, to minimise the risk of damage from imminent hailstorms.

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The VDE Americas report concluded that the panels were moved to the desired stow angle, and that the system as a whole “worked as designed, including processing hail warnings, issuing activation emails and moving the trackers to hail stow position.”

Hail damage has emerged as a “disproportionately severe” component of solar project operations and maintenance, according to US-based climate insurance provider kWh Analytics, which noted that hail damage accounts for 6% of loss incidents for US PV projects, but is responsible for 73% of financial losses.

Much of this stems from the fact that PV projects are growing in size to capture more of the sun and generate more electricity, but these larger project footprints expose more panels to the risk of hail damage. Earlier this month, Jon Previtali, senior principal engineer at VDE Americas, told PV Tech Premium that, on average, “we see 50% of the project destroyed with these hailstorms”.

“This successful validation by VDE is the result of a strong engineering partnership and a shared commitment to rigorous, real-world validation,” said Scott Van Pelt, chief engineer at GameChange Solar; the company noted that it has “worked closely” with VDE to better improve its hail mitigation systems.

GameChange Solar has also made a number of investments into better optimising its trackers for use in unfavourable environments. Earlier this month, it launched a new terrain-following tracker, and earlier this year announced the supply of trackers to what it identified as “diverse and challenging environments” across South America.

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