Montenegro faces more than €1 billion of investment needs in drinking-water and wastewater infrastructure over the coming decade, while the World Bank prepares a new financing programme aimed at reducing losses and improving municipal utility performance.
Estimates cited in World Bank project preparation documents put drinking-water investment requirements at about €580 million, with another €471.5 million needed for wastewater collection and treatment.
Combined needs therefore exceed €1.05 billion.
The scale highlights one of Montenegro’s largest infrastructure gaps as rapid tourism and real-estate development increases pressure on municipal systems already characterised by high water losses and limited wastewater treatment.
The World Bank is preparing the first phase of its Montenegro Water Services and Climate Resilience Project, currently estimated at around $58 million.
Indicative financing includes $35 million from the International Bank for Reconstruction and Development and $23 million from the OPEC Fund for International Development.
World Bank approval is provisionally targeted for Oct. 30, 2026.
The programme is expected to focus on infrastructure investment, better utility performance and stronger climate resilience.
The commercial problem is unusually severe.
Around 68% of water entering municipal supply systems does not generate revenue, according to project documentation.
That includes physical leakage, inaccurate metering, unauthorised consumption and other losses.
For utilities, the figure means the majority of treated water is effectively produced without being converted into billable sales.
That weakens cash flow and reduces the ability of municipal water companies to finance maintenance and new investment from their own revenues.
The problem also has an energy cost.
Water must be pumped, treated and distributed even when it is ultimately lost from the network.
Reducing leakage therefore lowers both water consumption and electricity expenditure.
Wastewater infrastructure is another major weakness.
Less than half of wastewater is currently treated, while fast-growing coastal destinations face increasing pressure from hotels, apartments and seasonal population peaks.
That makes water infrastructure an increasingly direct constraint on tourism and real-estate development.
Montenegro has attracted billions of euros into coastal property and tourism assets, but municipal infrastructure has frequently expanded much more slowly.
The imbalance is becoming particularly visible in areas where summer water consumption approaches network capacity or where sewage systems cannot absorb additional development.
Investment in water networks can therefore have a higher economic impact than its direct financial return suggests.
A new pipeline or treatment plant does not generate the same commercial revenue as a hotel or airport, but without it additional private development may become impossible.
That helps explain the growing role of international financial institutions.
Montenegro has already used financing from the European Investment Bank, EU grants and other programmes to build and rehabilitate water and wastewater systems across municipalities including Ulcinj, Kolašin, Mojkovac, Rožaje and Nikšić.
The new World Bank programme would add another large financing platform.
But funding alone will not solve the problem.
Municipal utility companies vary widely in technical capacity, staffing, tariff collection and financial performance.
Some struggle to cover operating costs, leaving them dependent on municipal budgets or transfers for investment.
That weakens incentives for preventative maintenance and can allow network losses to remain high for years.
The World Bank programme’s emphasis on utility performance is therefore important.
Reducing non-revenue water from current levels could create substantial financial benefits before entirely new infrastructure is built.
Every cubic metre recovered through leak reduction or improved billing effectively increases available supply without requiring a new source.
That is particularly valuable on the coast, where peak summer demand can be many times higher than winter consumption.
Regionalni vodovod has already reported extremely high seasonal flows to coastal municipalities, with parts of the main system operating close to capacity during the 2026 summer season.
The bottleneck is increasingly in local distribution networks rather than the availability of bulk water alone.
Climate risk adds another dimension.
Hotter summers, drought periods and greater variability in rainfall could increase stress on water resources while also raising tourism-season demand.
Flooding and intense rainfall can simultaneously overwhelm drainage and wastewater systems.
Future infrastructure therefore needs to be designed for more volatile conditions rather than historic averages.
The investment requirement of more than €1 billion will almost certainly require blended financing.
EU grants could cover part of the cost as Montenegro advances toward membership, while EIB, EBRD, World Bank and other lenders can provide long-term debt.
Municipalities and the national budget will still need to contribute.
Private capital may have a more limited role because many projects do not generate returns sufficient for conventional project finance.
The more immediate challenge will be absorption.
Montenegro is preparing large investments simultaneously in roads, railways, airports, energy and environmental infrastructure.
That puts pressure on engineering companies, public procurement and government project-management capacity.
Water projects can be particularly difficult because they often require extensive local permitting, property access and works through densely populated areas.
The €1.05 billion investment gap therefore represents not only a financing challenge but an execution challenge.
For Montenegro’s economy, however, postponement will become increasingly expensive.
Tourism, housing and commercial property can continue growing only if municipal utilities keep pace.
The World Bank programme will cover only a fraction of the total requirement.
Its greater value may be establishing a model in which improved utility performance and new infrastructure are developed together.
Montenegro has enough water to support further growth.
The problem is getting it efficiently to customers — and treating it after it has been used.
