On 19 September 2026, the Balearic government announced the installation of 113 photovoltaic panels at four wastewater treatment plants in Mallorca . The measure affects the EDAR Mancomunada del Pla in Ariany as well as the municipal facilities in Sant Joan, Lloret de Vistalegre and Llubí. The responsible authority is the Agència Balear de l’Aigua i de la Qualitat Ambiental (Abaqua), which reports to the department Conselleria del Mar y del Cicle del Agua The aim is to reduce electricity drawn from the grid and increase self-consumption.
The distribution of the modules across the four sites has been confirmed. The authorities concerned did not publish further technical details on capacity and output in the statements consulted. Figures for possible feed-in to the grid or curtailment were also not officially quantified. However, the authorities point out that the modernisation of water and wastewater infrastructure in Mallorca is ongoing, with energy-efficiency measures playing an increasingly important role.
Wastewater treatment plants are among the larger municipal electricity consumers in the Balearic Islands. Wastewater volumes in Mallorca regularly rise in summer, increasing the facilities’ energy needs. The installation now announced is part of Balearic government programmes that have announced investments in hydraulic infrastructure and energy-efficiency projects in recent months. These have been financed partly through the sustainable tourism budget and partly through direct budget funds. The EDAR Mancomunada del Pla serves several municipalities in the island’s interior of Pla de Mallorca and is therefore considered a key site for operational improvements.
Attribution and reliability: The facts reported here—the number of modules installed, the sites involved and the institutions responsible—are based on statements from the Conselleria del Mar y del Cicle del Agua and Abaqua, as well as consistent local reports. Technical figures and output forecasts not officially substantiated are not included in this report.
Outlook: The Balearic government expects higher self-consumption to reduce operating costs. However, the concrete effects on annual energy and emissions balances can only be reliably assessed once consumption data and operating-time measurements are available. Further water-sector efficiency projects have been announced and, according to the authorities, are being implemented in stages.
Editor: Mira Cadena (Article created with AI assistance).