Published 11/5/2025
The Port of Tallinn and Ports of Stockholm signed a Memorandum of Understanding on 4th of November in Tallinn to launch the Swed-Est Green Collaboration, a joint initiative aimed at promoting sustainable and fossil fuel free maritime activities between Estonia and Sweden, primarily at the harbours connecting Tallinn–Stockholm and Paldiski–Kapellskär routes.
According to Valdo Kalm, CEO of the Port of Tallinn, the collaboration aims to reduce the environmental impact of maritime transport while offering passengers and cargo operators future-oriented, sustainable solutions.
“This partnership provides both ports with a strategic advantage, making us more attractive to shipowners, passengers and cargo operators who are looking for sustainable travel and transport solutions. It also opens up opportunities for developing new business models in fossil fuel free maritime transport, for joint scientific and applied studies, and for applying for EU and other funding programmes,” Kalm said.
In addition to environmental goals, the cooperation also seeks to increase passenger numbers, cargo flows, and ship calls — contributing directly to the economic vitality and well-being of the regions around the ports.
“Although the Port of Tallinn and Ports of Stockholm are the initiators of this collaboration, we will invite private and public sector organisations, research institutions and other maritime stakeholders to join this green partnership in the future,” Kalm added.
Magdalena Bosson, CEO of Ports of Stockholm, highlighted the joint responsibility and ambition that unite the two countries.
“Sweden and Estonia share the same sea and the same responsibility to protect it. By working together, we can accelerate the green transition across the Baltic Sea region and make maritime transport cleaner, and more efficient,” Bosson said.
The Memorandum covers a range of joint activities and targets to be implemented across four ports, focusing on reducing emissions, improving energy efficiency, and promoting circular economy practices. Among the key goals is the installation of Onshore Power Supply (OPS) systems for ro-pax vessels in Paldiski South Harbour and the Port of Kapellskär by 2030, enabling ships to connect to shore power while at berth and thereby reduce CO₂ and noise emissions.
Both ports are also investing in renewable energy solutions. The Port of Tallinn plans to transition to CO₂ emission-free heating and electricity systems at the D-Terminal in Old City Harbour and at Paldiski South Harbour, as well as to deploy solar panels, LED lighting, and other green energy sources. Ports of Stockholm, in turn, are exploring opportunities for more solar cell installations in Värtahamnen and Kapellskär and explore the possibilities to provide fast charge options for buses, trucks and other heavy vehihles in the port areas.
A key focus area of the collaboration is enhancement of waste management and circular economy practices. The Port of Tallinn aims to increase the proportion of ship-generated waste directed to recycling through improved sorting and handling, while Ports of Stockholm are developing solutions for the separate offloading and processing of food waste to produce biogas and reduce hydrogen sulfide levels in sewege treatment systems. The partners will also assess possibilities for reusing treated greywater, for example for quay flushing, within an ongoing project.
Another important goal is the transition to energy-efficient, zero-emission port machinery and transport. The Port of Tallinn will continue the complete conversion to energy-efficient and zero-emission port equipment and promote the use of green taxis, public transport and bicycle infrastructure in port areas. Ports of Stockholm will follow their port truck strategy for zero-emission cargo handling in the Port of Kapellskär and support further electrification in Värtahamnen to reduce air and noise pollution.
The cooperation also includes the modernisation of port terminals in line with high environmental standards. The Port of Tallinn will share best practices from the renovation of the D-Terminal and the construction of the new A-Terminal in Old City Harbour, while Ports of Stockholm are rebuilding the Värtahamnen terminal in accordance with the sustainability requirements of Stockholm.
“We have already made significant progress with our FIN-EST Green Corridor initiative together with the Port of Helsinki and ferry companies, and we are very pleased to extend that valuable experience now to our collaboration with the Ports of Stockholm,” added Kalm.
The Swed-Est Green Collaboration marks a new stage in maritime cooperation between Estonia and Sweden and represents an important step towards a cleaner Baltic Sea and more sustainable environment in general. The shared goal of the Port of Tallinn and Ports of Stockholm is to build a future-proof and environmentally conscious maritime network that connects the two countries through sustainable innovation and responsible business practices.