Zero-Emission Construction Sites (ZECS) are worksites where only zero-emission construction machinery and transport can operate. This approach seeks to decarbonise one of the most emission-intensive phases of the built environment: the construction stage. By focusing on this critical window, ZECS aim to reduce embodied carbon in buildings and infrastructure. 

Why do ZECS matter? 

ZECS address multiple urban challenges at once: 

Bellona’s engagement with ZECS

Cities as drivers of change 

Cities account for a large share of global greenhouse gas emissions, and their impact on climate crisis cannot be ignored. 

But they also hold the power to lead. Oslo’s progress illustrates that by embedding ZECS into local climate strategies, procurement frameworks, and urban development policies, municipalities can: 

• Meet climate goals through practical interventions 

• Create lead markets for clean construction products 

• Demonstrate the feasibility and scalability of sustainable models to national and EU-level decision-makers 

Green public procurement is a powerful tool. Oslo has shown that by including environmental criteria in tenders, cities can drive innovation and influence markets far beyond municipal borders. 

Database of Zero-Emission Machinery

Bellona supports cities in decarbonising construction by promoting zero-emission solutions. 

We’ve developed the Emission-Free Construction Equipment Database to help cities and contractors identify market-ready and upcoming construction machinery and equipment. 

Download it here

We also advocate for EU-level action to scale ZECS through partnerships such as: 

• Big Buyers Working Together: Promoting collaboration among large public buyers to promote green public procurement. 

• PURE Project: Led by the City of Oslo, aims at scaling zero-emission construction and electrification efforts across Europe.