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4. Electrification and Switching to Net-Zero Emission Resources

4.1 Main findings

Nordic countries are at the forefront of transitioning to net-zero emission energy sources, with electrification playing a central role in urban decarbonization. Significant progress has been made in integrating renewable energy, such as Reykjavik’s
 geothermal district heating system, which powers 90% of the city’s heating needs and contributes significantly to electricity generation. District heating and cooling systems, such as those used in Sweden's Sara Kulturhus
 further reduce emissions by utilizing renewable energy and advanced technologies like AI. In the transport and construction sectors, cities like Oslo are rapidly decarbonizing through the adoption of electric machinery and emission-free construction policies made possible by the Norwegian state owned fond ENOVA
 supporting purchases of emission-free machinery, as demonstrated by Oslo’s emissions-free construction initiative and projects like Stovner Bad
 and Miljøgate.
 Heat pump technology also plays a crucial role in reducing reliance on fossil fuels, exemplified by Oslo’s Tøyenbadet
 swimming centre, which integrates renewable energy and water recycling. However, challenges remain, including the need for grid modernization to handle increased electrification and ensuring that the transition remains affordable and equitable for all.

4.2 Opportunities and best practices

Nordic countries lead in the transition to net-zero emission energy sources, including electrification, as a key strategy for urban decarbonization.
  • Renewable Energy Integration: Significant progress has been made in integrating wind, and hydro, power, and geothermal energy into urban systems.
    Case study: Reykjavik’s Geothermal District Heating System (Iceland)

    The geothermal district heating system in Reykjavik is a leading example of renewable energy integration. Geothermal energy not only provides 90% of the city's heating needs but also contributes 20–25% of Iceland's electricity generation. This extensive use of geothermal resources reduces reliance on fossil fuels, enhances energy efficiency, and improves air quality. The integration of geothermal energy into both heating and electricity systems significantly lowers greenhouse gas emissions, reduces energy bills for residents, and supports job creation in the renewable energy sector.

  • District Heating and Cooling: Adoption of district heating and cooling systems supplied by renewable energy has reduced building emissions.
    Case study: Sara Kulturhus (Skellefteå, Sweden)

    The cultural centre “Sara Kulturhus” in the Swedish town Skellefteå is one of the world’s tallest wooden buildings at 20 stories tall. The building features solar panels and batteries, and a heat pump system. Even the sprinkler system is powered by renewable energy. It uses AI technology optimizes building operations by analysing performance and external factors, ensuring maximum comfort and energy efficiency with minimal human intervention. Sara Kulturhus also shares excess electricity with the city and stores it in on-site batteries. All waste heat is reused, and the building operates on 100% renewable energy.
  • Electrification of Transport and Construction Equipment: Rapid growth in electric vehicle adoption, supported by extensive charging infrastructure and incentives, facilitates the decarbonisation of urban transport and construction.
    Case study: Oslo's Emissions-Free Construction Policy (Oslo, Norway)
    Norway’s capital city Oslo aims to make all municipal construction projects emission-free by 2025. Construction machinery accounts for nearly a fifth of the city's CO2 emissions. To address this, Oslo requires zero-emission construction processes, including electric machinery and emission-free transport. Stovner Bad, a new swimming pool facility being built in Oslo, is a key example
     using electric and biodiesel-powered equipment, with plans to be fully emission-free by 2025. This initiative supports Oslo’s broader goal of reducing greenhouse gas emissions by 95% by 2030.
    Case study: Miljøgate (Gran, Norway)

    Achieved 98% emission-free status, incorporating hydrogen charging tests. This project is the first in Norway where machine operators have access to a hydrogen-powered heavy-duty truck charger. The charger generates electricity without greenhouse gas emissions. The Norwegian Public Roads Administration and Hafslund are testing this hydrogen-powered charging point in the project.
    Case study: Sophies Minde School (Oslo, Norway)

    The Sophies Minde project, converting an old clinic into a nursery and maternal health centre, is 100% emission-free. Thanks to The City of Oslo’s climate policy, construction uses electric machinery and other methods to eliminate greenhouse gas emissions. This approach has significantly reduced noise and fossil fuel use, leading to improvements across various sectors and serving as a model for other cities. 
  • Heat pumps: Heat pump adoption, using them extensively for efficient heating and cooling. These systems, which transfer heat from air, ground, or water, reduce reliance on fossil fuels and lower emissions. Technological advancements, government incentives, and integration with renewable energy sources have driven their success, setting a model for other regions.
    Case study: Tøyenbadet (Oslo, Norway)

    One of Norway's most modern and energy-efficient swimming centres. It features the use of environmentally friendly materials and recycling, including wood in parts of the building. The facility is being built as an energy-efficient passive house, incorporating heat pumps, energy wells, solar energy, and district heating. A blue-green roof will manage stormwater, enhance air quality, and boost biodiversity. The new swimming facility will also reuse treated rainwater for the pool, reducing reliance on the public water supply. Additionally, the construction site is fossil-free, utilizing only electric and biofuel-powered machinery.

4.3 Main Barriers

The transition toward electrification is a critical component of achieving net-zero emissions. However, cities must confront challenges related to grid capacity and stability to ensure that the infrastructure can support increased demand. Affordability and equity are also pressing concerns, as the transition can disproportionately affect low-income communities. Additionally, uncertainty regarding the future of carbon capture and negative emissions technologies adds complexity to the decarbonization process, necessitating cohesive strategies that integrate these technologies while addressing social and economic disparities.

4.4 Recommendations

  1. Invest in Nationwide Electrification and Renewable Energy Integration
    • Increase investments in renewable energy sources and upgrade national grid capacity to meet electrification demands.
  2. Public Transport Electrification Policies
    • Mandate public transport electrification by a specific year, with investment in infrastructure and zero-emission targets for heavy-duty vehicles.
  3. Decarbonize Local Public Transportation Systems
    • Invest in electrified public transport while promoting cycling lanes and pedestrian infrastructure.
  4. Electrify Construction Equipment at Local Level
    • Set local targets for zero-emission construction sites using electric or biodiesel-powered machinery.
byggarbetsplats-1200px.jpgPhoto: Sigurður Ólafsson/norden.org
Nordic Council of Ministers I www.norden.org/publications I pub@norden.org