H55 Showcases Exceptional Electric Aviation Performance in Extreme Desert Conditions

“`markdown
DESERT HEAT, STEADY POWER: H55 DELIVERS UNMATCHED PERFORMANCE IN HOT CLIMATES

**SION, Switzerland and PALO ALTO, Calif., June 13, 2025** /PRNewswire/ — H55, a pioneer in electric aviation and a technological spin-off of the historic Solar Impulse project, recently completed the fourth leg of its Across America tour in Las Vegas from June 2–6. During this segment, the Swiss-developed electric propulsion system (EPS) showcased its capabilities in one of the most challenging flight environments in the U.S. The B23 Energic—a fully electric general aviation and flight trainer aircraft—demonstrated exceptional reliability under the extreme conditions of the Mojave Desert, proving the effectiveness of electric propulsion in high heat and low-density altitude scenarios. The aircraft operated flawlessly, affirming the EPS’s resilience and consistent power output regardless of temperature or elevation.

At the core of the B23 Energic’s impressive performance is H55’s proprietary battery and energy management system, designed to deliver peak performance even in harsh environments. Unlike combustion-based propulsion systems, which suffer in hot and high-altitude conditions, H55’s thermal regulation architecture ensures reliable power output and safe operations, independent of ambient temperature.

**Flight Demonstrations Highlight Reliability and Versatility**

The H55 flight operations team, led by Céline Bonnefous (Lead Flight Test Engineer), Sasa Blagec and Serge de Wit (Flight Readiness Engineers), and Laurent Wulser (Pilot), conducted a series of demonstration flights with U.S. Air Force test pilots, commercial pilots, flight instructors, and general aviation enthusiasts from Nevada and surrounding states. Despite the intense desert heat, there was no degradation in aircraft performance.

“The H55 electric engine isn’t affected by density altitude,” said Céline Bonnefous. “It consistently delivers power regardless of heat or elevation—unlike piston engines, which depend on air density for combustion. In hot or high-altitude conditions, those aircraft experience significant drops in performance, especially during takeoff. This is a major advantage for flight schools and regional hubs operating in more challenging environments.”

**What Pilots Are Saying…**

Flight schools across the nation are witnessing the future of training first-hand. Paniau Lindsey, Chief Flight Instructor at Vegas Aviation, shared his experience with the B23 Energic: “This was my first time using a center stick, and I expected to struggle—but it was easy. I’m still amazed. Before flying, I thought, ‘We’re going to fly a plane with no gas? How’s that going to work?’ But once we were up there, everything was smooth. It’s incredibly quiet—we even took off our headsets and could still converse. I’m going to talk to my school about getting a couple of these planes. It’s clean, simple, quiet, and flies excellently. Takeoff was a breeze. Steep turns? No problem. It’s a perfect training aircraft. Beautiful flight—this is impressive.”

**Next Stop: The Heart of Silicon Valley**

California has always been strategically significant for H55. The company first arrived in the state in 2013 with Solar Impulse I and returned in 2017 with Solar Impulse II, marking pivotal moments in its journey toward electric aviation. Silicon Valley played a crucial role in H55’s early development, being home to its lead investor, ND Capital, and several of its earliest supporters.

For the Silicon Valley investment community, this represents a compelling opportunity to engage with a product that has been in operation since 2019, is nearing the final phases of certification, and is generating commercial traction with a growing order book. The B23 Energic—powered by H55’s certified electric propulsion system—is not a prototype; it is a fully operational aircraft validated through extensive testing and demonstrations. With regulatory pathways clearly defined by EASA and FAA, and strong demand from flight schools, OEMs, and operators, the platform is well-positioned for market entry and scalable deployment. For investors, this opportunity combines technological maturity, regulatory readiness, and commercial momentum.

H55 will be present at San Carlos Airport (SQL) at Skyway Center from June 14-16 and will be hosted at Palo Alto Airport (PAO) by the Bay Area Urban Eagles from June 17-25, marking the fifth stop on the tour. These organizations are collaborating to introduce American audiences to the promise of fully electric, zero-emission flight, featuring quiet and low-maintenance aircraft. H55 has also been invited by the Hiller Aviation Museum to showcase at their Biggest Little Air Show on June 14, 2025, providing the public with a chance to experience the future of electric aviation firsthand.

**The Launch of a New Platform**

As H55 connects with communities across the country, it is also fostering a movement for sustainable flight. To support this growing momentum, H55 has launched a new Ambassador Program and website, inviting aviation and aerospace professionals, industry leaders, regulators, and enthusiasts of all ages to join the mission and help shape the future of clean aviation. More information and applications can be found at: https://across-usa.h55.ch/h55-ambassadors/.

**About H55**

H55 is a Swiss-based company established by the former management team of Solar Impulse: André Borschberg, Sebastien Demont, and Gregory Blatt. Committed to transforming the aviation industry, H55 provides certified electric propulsion and battery management systems tailored for a diverse range of aircraft, aiming to achieve sustainable air travel. H55 delivers certified electric propulsion systems along with full airplane integration solutions for general aviation and regional transport aircraft. With a pioneering legacy and a commitment to certified solutions, H55’s team of visionary engineers and aerospace experts is at the forefront of setting new standards and pushing the boundaries of electric aviation. For more information, visit: www.h55.ch or contact [email protected].
“`