Porto cuts unbilled water to 11.8% as AI tool targets leaks
Porto's water utility, Águas e Energia do Porto, reported that unbilled water fell to 11.8% in 2025, from over 52% when the company was created in 2006. Over 20 years it says it has saved more than 255 billion litres. A digital system called InnoWave, combining artificial intelligence, geographic data and operational records, helps manage pressure, predict where pipes are likely to burst and prioritise replacements across 830 km of network serving over 170,000 customers. Field teams validate the models. The system has won three national awards, and the utility ranked first nationally for water supply service quality for the third year running.
Infraquinta publishes first sustainability report, with non-revenue water at 2.7%
Infraquinta, E.M., a local utility, has published its first Sustainability Report. It points to strong results, above all in environmental management. A key figure is non-revenue water, the share of treated water that never generates income, which stood at 2.7% in 2025. Infraquinta says it has had the lowest percentage of non-revenue water among local utility entities for the past ten years.
Pump failure leaves Pico da Pedra short of water as reservoir runs low
A breakdown cut water supply in the parish of Pico da Pedra, in Ribeira Grande, Azores. The council says the fault stopped water being pumped to one reservoir and disabled the alert system, so the second reservoir feeding the parish fell to minimum levels. An alternative pumping system is running, though restoring normal service will take time. Sediment seen in the water is blamed on the falling reservoir level and was expected to clear by the end of the day. The council has commissioned a specialist firm to test water quality as soon as possible. One resident says no guidance has been given on whether the water is safe to drink.
Boiço villagers lose sleep to compressor noise at local water treatment plant
About 20 residents of Boiço, in the municipality of Tábua, say a compressor running day and night at the local water treatment plant has made their lives miserable for the past five months. Some cannot sleep without earplugs, and even then rest is difficult. The smell that used to affect the village has improved since the public company Aintar took over the plant's operation, but the noise is described as unbearable. Aintar's chief executive says efforts are under way to reduce the noise, although silencing it entirely is reported to be impossible.
Coimbra professor says Girabolhos water could make new Fagilde dam unnecessary
Fernando Seabra Santos, a University of Coimbra professor and former rector, argues that a new Fagilde dam on the Dão may be avoidable. He suggests supplying Viseu and neighbouring municipalities from the planned Girabolhos dam on the Mondego, which he says could deliver water with almost no pumping and cover Viseu for decades, provided pipelines are built. He made the case at a Viseu conference, questioning the dam's estimated 30 million euro cost within a 60 million euro package announced in October that also includes a new wastewater plant. He also warned that public infrastructure is neglected in favour of new works.
Alto Alentejo mayors and villagers back Pisão dam at court hearing on lifting work ban
Four mayors from the Alto Alentejo, including the head of the regional intermunicipal body CIMAA, testified on 26 October at the Castelo Branco administrative court. The hearing concerns lifting the ban on building the Pisão dam in Crato. They called the project urgent for the region's economy and water scarcity, noting that all 15 municipalities have backed it since 2018. Residents of Pisão village packed the courtroom in support. The session was the first held to correct formal errors identified by higher courts in cases brought by environmental groups against the environmental impact statement. The judge will now decide on its validity and whether work resumes.
Sernancelhe mayor urges residents to object to floating solar plant on Vilar reservoir
The mayor of Sernancelhe, Carlos Santos, is urging residents to take part in the public consultation, open until 23 November, on a floating solar and wind hybrid project at the Vilar reservoir in the Távora valley. The revised plan has two islands of panels instead of four, but keeps 30,744 bifacial modules across 12 hectares of water. He says the cut changes nothing, citing risks to biodiversity, landscape, tourism and the aerial firefighting that uses the reservoir. Regional councils rejected the scheme in 2024, and three municipalities have since filed unfavourable opinions with the environment agency.
Environment agency refuses solar plant planned beside Marão wind farm
Portugal's environment agency has issued an unfavourable decision on a 21-hectare photovoltaic plant that EnergieKontor wanted to build beside its Penedo Ruivo wind farm, across Baião and Amarante. Only seven hectares would have held panels. The site lies entirely within the Alvão/Marão Special Conservation Area and touches a regional protected landscape. The agency concluded that the harm to environment, landscape and territory could not be sufficiently reduced, even by adjusting the layout or reusing existing grid infrastructure. The evaluation committee also advised against it. Of 666 public submissions, 661 came from citizens, and almost all opposed the plant.
Torres Novas council moves to void approval step for Árgea biomethane plant
Torres Novas council plans to put a proposal to its executive in early November to declare null an administrative act tied to a planned biomethane plant at Árgea. Mayor José Trincão Marques said the move goes ahead whatever position the Portuguese Environment Agency has taken, and ruled out tacit approval. The council objects to the site, which it considers unsuitable. The €18 million project, promoted by Gasdaterra, would process around 100,000 tonnes a year of organic waste and livestock effluent. Residents and environmental groups cite odours, heavy traffic and water risks.
Portugal opens first grid-connection auctions since 2021 for generation and battery storage
The government has launched two auctions to allocate grid-connection capacity: 300 MVA for new power generation centres and 750 MVA for standalone storage systems. They are the first of their kind since 2021. The aim is to draw investment in renewables and batteries, which can store surplus electricity and release it at peak demand, easing prices and reducing reliance on gas-fired plants. Municipalities hosting projects will receive part of the auction revenue, plus annual compensation, and solar projects combined with farming are favoured. A separate order sets technical requirements for connecting storage, including frequency and voltage stabilisation.
Iberdrola launches business electricity plan that discounts each firm's eight busiest hours
Iberdrola has introduced the Plano Poupança Inteligente Negócios, a tariff for small and medium-sized businesses. It automatically identifies the eight hours of each day when a company uses the most electricity and charges a lower price for them, so firms do not have to change their opening hours or operations. The company says savings could reach up to 700 euros a year, based on ERSE simulator tariffs for a 6.9 kVA contract and 5,000 kWh of annual use. The plan extends a residential version that has already attracted more than 20,000 households. Iberdrola supplies over 13% of the electricity consumed in Portugal.
Caminha replaces Lanhelas stadium floodlights with 24 LED projectors
Caminha council has installed a new LED lighting system at Estádio Ilídio Couto in Lanhelas, at a cost of €33,430.17 including VAT. Twenty-four 600-watt projectors replace the old lamps on the existing masts. The council says the aim is better conditions for training and other sport, especially when natural light is poor, along with improved safety, lower energy use and less maintenance. The works covered wiring, aiming the projectors according to a lighting study, electrical protection checks and light-level measurements. Technical documents and a maintenance plan were also handed over.
Advanced liquid biofuels proposed as quick route to cut Portugal's transport emissions
Electric mobility is the most obvious option for new light vehicles in Portugal. Advanced liquid biofuels, however, stand out because they can be used in vehicles already on the road, which allows emissions to be reduced without waiting for the fleet to be replaced.
Energy regulator hosts launch of second phase of UN maritime decarbonisation task force
Portugal's energy services regulator, ERSE, hosted a meeting on 15 October to mark the start of the second phase of the Blue Decarbonisation Task Force, a UN Global Compact initiative to cut emissions in shipping and ports. The first phase set priorities and drew up recommendations; the new one aims to turn them into concrete measures through cooperation between companies and public bodies, and to remove obstacles to investment. Work is split across four areas: port and maritime digitalisation, infrastructure and energy, fisheries and coastal activities, and financing and transition plans. About 40 people attended in person and 12 online.
Cimpor launches Havelar brand to scale low-carbon 3D-printed construction internationally
Cimpor has launched Havelar by Cimpor, an international brand for 3D-printed construction, following a strategic investment in Havelar. It aims to make the technology affordable, scalable and less carbon-intensive by joining low-carbon cement and concrete expertise with digital construction. In Portugal, the Mariadeira development in Póvoa de Varzim, with 16 residential blocks and 32 homes, is the showcase; it was the first Portuguese residential project printed with concrete supplied solely by mixer trucks. Priorities include ultra-low-carbon printable concrete and reusing construction and demolition waste. The company plans to expand into social housing and infrastructure, with a project already under way in Turkey.