Focus area

Zero-Emission Construction Sites

ZECS address multiple urban challenges at once: 

Significantly reduce emissions from construction and embodied carbon in building and infrastructure 

Cut construction-machinery-related particulate matter, NOx, and CO emission to zero. 

Noticeably reduce noise levels, improving conditions for residents, workers, and nearby businesses 

2016–2018
Bellona supports Oslo’s municipal developer in defining public procurement criteria for ZECS: “What can be run electric, shall be run electric.”
2018
Bellona advocates for including construction machinery in the EU Clean Vehicles Directive and publishes the ZECS Status Report 2018.
2019
Oslo launches the world’s first fully zero-emission construction site at Olav V Gate. Bellona also launches the ZECS Database and publishes the ZECS Status Report 2019.
2020
ZECS expands to Finland and Denmark. Bellona pushes for GHG inclusion in the Non-Road Mobile Machinery Regulation.
2022
Bellona begins work on embodied carbon to tackle emissions from construction materials.
2025
Bellona publishes a Lessons Learned report. Starting in 2025, all public construction sites in Oslo are emission-free.

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. 

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

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

Publications related to focus area

All publications

The people involved

Linda Zarai

Policy Assistant, Clean Construction

Irene Domínguez

Policy Manager, Embodied Carbon & Lead Markets

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