The demand for smaller, more efficient, and highly sustainable connected devices is transforming the electronics industry. Leading this charge is Ligna Energy, a pioneering manufacturer of ultra-thin supercapacitors specifically designed for wireless electronics. The company has officially announced its participation in the highly anticipated Embedded World 2026 exhibition in Nuremberg, Germany.
Here at Aaroka Tech, we are closely tracking the evolution of industrial design in the Internet of Things (IoT) sector. Ligna Energy’s upcoming showcase promises to deliver groundbreaking end-to-end building blocks for IoT systems, highlighting innovations that eliminate the need for primary batteries in indoor sensors while promoting incredibly thin, discreet form factors.
The Future of Smart Buildings: Thin, Discreet, and Scalable
One of the central themes Ligna Energy will address is the rapid evolution of smart buildings. Historically, electronics and environmental sensors required bulky housings to accommodate traditional power sources. Ligna’s innovative work with ultra-thin energy storage challenges this norm, posing an important question: Why can’t building sensors adopt the sleek, disciplined design of modern smart cards?
Today’s smart infrastructure demands sensors that are visually unobtrusive, highly cost-optimized, and easy to deploy at scale. High-density sensor networks are essential for modern building management, but their physical footprint must be minimized. Ligna’s technology allows Original Equipment Manufacturers (OEMs) to meet these constraints head-on.
Eliminating the IoT “Battery Tax”
Managing a vast network of IoT devices often comes with a hidden operational cost. Routine battery replacements require manual service visits, generate significant electronic waste, and drastically increase the total cost of ownership.
“Battery replacement is one of the ‘taxes’ – it adds service visits, waste, and cost,” noted John Söderström, Marketing Director at Ligna Energy. “At Embedded World, we’re showing practical building blocks that help teams move from promising prototypes to deployments that scale.”
By removing the reliance on routine battery swaps, facility managers can unlock simpler operations. Furthermore, this shift to battery-free architecture opens up new possibilities for where sensors can be installed, including ultra-thin or hidden placements where traditional, bulky enclosures simply would not fit.
Introducing Gwen: The Battery-Free Indoor Climate Sensor
A major highlight of Ligna Energy’s presentation at Embedded World will be the unveiling of Gwen, an advanced battery-free indoor climate sensor reference design. Gwen was developed to demonstrate exactly how smart-card-style industrial design can be seamlessly applied to functional IoT sensors.
Key features of the Gwen reference design include:
- Ambient Energy Harvesting: The device captures ambient energy from its surrounding environment.
- S-Power 2S Supercapacitor: Harvested energy is efficiently stored in Ligna Energy’s proprietary, ultra-thin S-Power 2S supercapacitor.
- Comprehensive Environmental Tracking: The sensor accurately measures both temperature and humidity.
- Bluetooth Low Energy (BLE): Data is transmitted reliably using energy-efficient BLE technology.
Ligna emphasizes that Gwen is not intended to be a restrictive, “one-size-fits-all” product. Instead, it serves as a robust foundational blueprint that solution providers and OEMs can adapt and integrate into their unique industrial designs.
Championing Sustainability with Verified Data
Beyond operational efficiency, Ligna Energy is deeply committed to environmental sustainability. The shift away from primary batteries simplifies end-of-life device handling, as there is no longer a need to remove, sort, or treat toxic batteries separately when a sensor is retired.
To back up its sustainability claims, Ligna relies on rigorous, published lifecycle assessments. The company has released Environmental Product Declaration (EPD) and Life Cycle Assessment (LCA) data for its S-Power supercapacitors. Boasting a cradle-to-gate carbon footprint of just 12g CO₂e per unit—alongside a third-party verified EPD—Ligna provides OEMs with the standardized impact reporting necessary to meet modern environmental, social, and governance (ESG) goals.
Visit Ligna Energy at Embedded World 2026
Industry professionals, engineers, and IoT enthusiasts attending Embedded World 2026 can experience these innovations firsthand. Ligna Energy will be stationed at Hall 2, Booth 2-230, alongside key ecosystem partners. Together, they will discuss the future of smart cards, smart buildings, design-for-scale, power management, and energy harvesting.
As the IoT landscape continues to mature, technologies that prioritize thinness, power efficiency, and material reduction will be the key to unlocking the next generation of smart infrastructure.
