In 2014, Selerys launched its innovative Anti-Hail Balloon solution, known as Laïco. These helium balloons were designed to release hygroscopic salts within storm clouds. This technology quickly garnered interest from fruit growers and vintners, especially since protective nets were not yet allowable on classified vineyards.
The 10-Year Impact of Selerys Anti-Hail Balloons in Agriculture
As the decade progresses, the effectiveness of Selerys’ Anti-Hail Balloons has spurred mixed reactions among its users. Some customers express confidence in the system, while others remain skeptical.
Mixed User Experiences
- Franck Binard, Director General of the Saint-Émilion Wine Council, stated that the balloons help reduce hailstone aggregation, limiting risks by up to 70%.
- Between 2021 and 2025, the balloon system was activated during 94 storm episodes, and Binard noted a lack of reported hail damage, aside from an unusual event.
Binard emphasized that the collective system is not questioned by most winemakers, many of whom are convinced of its benefits. One such winemaker, Anthony Appollot, reported an incident in May 2025 when a southward storm dissipated over Saint-Émilion, stopping hail at the launch points.
Criticism and Limitations
However, not all experiences are positive. An anonymous vineyard owner expressed frustration after investing in the collective system but still facing significant hail damage the following year. This drew criticism regarding the high costs associated with the system against limited protective benefits.
Franck Rabin, a production manager in Rhône, noted that it can be difficult to measure the actual effectiveness of the Selerys system. Users often operate on perception rather than quantifiable evidence. Many feel reliant on the technology’s promise despite lacking concrete proof it significantly mitigates damage.
Success Factors for Effectiveness
- Christophe Dumas from Chazay d’Azergues described observing milder hail conditions with balloon usage.
- Yves Lafoy from Ampuis claimed successful storm interception in 2025, differentiating between areas affected by hail and others with mere rainfall.
Appollot highlighted the importance of automation in achieving success, recalling initial failures due to human error. He stated that delays in launching balloons can critically impact effectiveness, making the fixed semi-automatic launchers vital.
The Role of Collective Action
Binard underscored the necessity of critical mass for effective deployment. Local associations like Paragrêle 69, founded in 2019, have expanded their coverage across Rhône. This organization operates 125 launch points and is funded by various stakeholders, including local governments and insurance companies.
Christophe Gratadour from the Rhône Agriculture Chamber observed that since 2019, no major hail events struck areas covered by the system, while neighboring regions experienced severe weather. Although the system is not infallible, users report reduced hail incidents and manageable damage when storms are treated.
Ultimately, the effectiveness of Selerys Anti-Hail Balloons remains a subject of ongoing examination. The passage of time and the tracking of storm statistics will likely provide clearer insights into their impact on agriculture in the years to come.
