Spain's Écija 3 Drinking Water Pumping Station Commissions 424 kWp PV Self-Consumption System

en.Wedoany.com Reported - The Consorcio de Abastecimiento y Saneamiento de Aguas Plan Écija (Écija Water Supply and Sanitation Consortium) in Spain has commissioned a 424 kWp photovoltaic self-consumption system under the EU-funded "Recovery Plan" (Plan de Recuperación). The project was executed by UTE (Temporary Joint Venture), formed by grandina's Enneo Ingeniería and Solareurope.

The system serves the "Écija 3 Drinking Water Pumping Station," which conveys treated water from the ETAP (Drinking Water Treatment Plant) through an 800 mm pipeline to the Écija 4 reservoir.

According to Enneo's Technical Director, Carlos Zafra, the PV system consists of 668 modules from the Chinese brand Tongwei, each rated at 635 Wp, distributed across three structural types from the Extremadura-based manufacturer Metalframe: east-west oriented aluminum structures anchored to the reservoir, south-facing structures with concrete ballast, and galvanized steel 2V structures. Each solution adapts to the site's mechanical conditions and meets the requirements for maximizing stiffness and durability under wind loads and thermal cycling.

Power conversion is carried out by four Huawei inverters—two 150 kW and two 50 kW—in a grid-connected configuration, with continuous monitoring of electrical performance and production. The installed capacity enables an estimated annual generation of over 700 MWh, all of which is used for self-consumption.

Carlos Zafra stated that this energy reduces dependence on the grid and stabilizes operating costs amid fluctuating electricity prices, while also reducing emissions associated with the pumping process. He added that the work was carried out on critical infrastructure, where service continuity constrains electrical planning and the integration of the PV system. The project reduces electricity drawn from the grid without altering the pumping station's hydraulic operation, which continues to maintain water supply to the Écija 4 reservoir.