UK SME developing vibration energy harvesting and wireless autonomous monitoring systems for railway track, rolling stock, and signaling infrastructure.
Perpetuum is a Southampton-based SME specializing in vibration-powered energy harvesting and wireless condition monitoring systems for the railway sector. They develop autonomous on-board sensors that convert train vibration into electrical energy, eliminating the need for batteries or wired power in remote rail infrastructure. Their technology enables continuous track and rolling stock monitoring, feeding into predictive maintenance systems for rail operators. Across their H2020 portfolio, they have addressed rail track integrity, lightweight wagon monitoring, and energy-autonomous signaling and communication systems.
Core technology across all three projects — WARNTRAK's vibration measurement, ETALON's energy harvesting for signaling, and INNOWAG's monitoring solutions all rely on converting mechanical vibration to usable power.
WARNTRAK developed a wireless autonomous on-board vibration monitoring system; INNOWAG extended this to predictive maintenance on lightweight wagons.
ETALON focused on energy harvesting specifically for ERTMS/ETCS signaling, CCS, and radio communication systems — deep engagement with European rail signaling standards.
Both WARNTRAK (track monitoring) and INNOWAG (wagon maintenance) address predictive maintenance through continuous data collection from autonomous sensors.
Perpetuum's H2020 involvement spans 2015–2020 across just three projects, making it difficult to identify a dramatic pivot. However, a clear progression is visible: they started with their core competency in vibration-based track monitoring (WARNTRAK, where they led as coordinator), then expanded into wagon-level predictive maintenance (INNOWAG), and most recently moved into energy harvesting for rail signaling and communication infrastructure (ETALON). The trajectory shows a shift from monitoring hardware toward powering the broader digital rail ecosystem — particularly ERTMS/ETCS signaling systems that are central to European rail modernization.
Perpetuum is moving from standalone monitoring devices toward energy-autonomous components for the European standardized rail signaling infrastructure (ERTMS/ETCS), positioning them within the Shift2Rail ecosystem.
Perpetuum balances leadership and partnership — they coordinated their flagship WARNTRAK project (which captured 81% of their total EC funding) while contributing as a specialist participant in two larger consortia. With 16 unique partners across 9 countries from just 3 projects, they engage with diverse European consortia rather than relying on repeat partnerships. This suggests they are a sought-after specialist that different consortium builders bring in for their specific energy harvesting and monitoring expertise.
Despite only three projects, Perpetuum has built a broad network of 16 partners across 9 European countries, reflecting the international nature of rail transport R&D. Their participation in Shift2Rail (ETALON) connects them to the core European rail innovation ecosystem.
Perpetuum occupies a rare niche at the intersection of energy harvesting and rail infrastructure monitoring — very few SMEs combine deep expertise in both vibration energy conversion and railway-specific sensor systems. Their involvement in Shift2Rail places them within the EU's flagship rail modernization initiative, giving them direct relevance to ERTMS/ETCS rollout across Europe. For consortium builders, they offer a proven SME partner that can make remote rail infrastructure self-powered and continuously monitored.
