in Barcelona
3 to 5 Nov 2026The Junta de Castilla y León is deploying nearly 175,000 IoT-enabled ultrasonic water meters across 244 municipalities in what represents one of Spain’s most ambitious smart water infrastructure modernization initiatives. The €38.7 million project, executed through the regional public infrastructure company SOMACYL, aims to cut network water losses by 30% and increase municipal revenue collection by up to 25%.
Multi-Protocol IoT Infrastructure With Long-Term Support
The deployment encompasses ultrasonic smart meters equipped with multiple communication protocols including NB-IoT, LoRaWAN, Wireless M-Bus, LTE-M, and 5G connectivity. This multi-technology approach should ensure operational flexibility across diverse geographic and infrastructure conditions throughout the autonomous community. The contract includes a comprehensive 12.5-year maintenance and support period, reflecting the long lifecycle expectations typical of modern smart metering deployments.
The technical architecture features an open-source interoperable digital platform capable of real-time data transmission, continuous consumption monitoring, early leak detection, and fraud identification. Both municipal authorities and end consumers will access data through a dedicated web portal, enabling transparent billing and consumption management.
Phased Rollout and Implementation Timeline
Project execution follows a structured deployment schedule. The initial six-month phase covers communications infrastructure establishment, platform deployment, and installation of 25% of all meters. Full deployment and system validation across all 174,850 devices is scheduled for completion within 24 months.
EU Recovery Funds and Regional Collaboration Framework
The initiative draws financing from multiple European sources, including FEDER structural funds and the NextGenerationEU Recovery and Resilience Facility. It qualifies as a Strategic Project for Economic Recovery and Transformation (PERTE) under Spain’s water cycle digitalization program, which the European Commission has designated as a priority investment area.
This smart metering deployment forms part of a broader €90 million water infrastructure modernization framework established through protocols between the regional government and all nine provincial councils (diputaciones provinciales) in May 2024. Under this “Mejorando Gota a Gota” (Improving Drop by Drop) program, funding splits 60% from the regional government, 20% from provincial councils, and 20% from participating municipalities. SOMACYL assumes responsibility for system operation and telemetry platform maintenance over a 25-year period.
Addressing Spain’s Water Loss Challenge
Spain faces persistent water distribution challenges, with the National Statistical Institute reporting approximately 651 million cubic meters of water losses in urban supply networks as of 2020. Non-revenue water in Spain averages around 24%, including physical losses of approximately 16% and apparent losses from undermetering and other factors.
The Castilla y León initiative targets a 30% reduction in network losses while improving billing accuracy through automated meter reading. Such outcomes align with European-wide efforts to digitalize water infrastructure, with smart water metering solutions projected to grow at a compound annual growth rate exceeding 25% through 2035 according to industry analysts.
Strategic Significance for Rural Water Management
Castilla y León’s deployment addresses specific challenges facing rural and small-to-medium municipalities, where aging infrastructure and dispersed populations complicate efficient water management. The autonomous community contains nearly 7,000 population centers, many with populations below 2,000 inhabitants, making scalable digital solutions particularly valuable.
The project complements additional regional investments including €65 million for joint water supply systems and €25 million for emergency drought response infrastructure. Together, these initiatives represent a comprehensive approach to water resource management in a region increasingly affected by climate variability.
