The Finnish port town of Loviisa has found itself at the centre of a heated Nordic discussion. Over the summer, residents complained of unbearable odors and health risks linked to imported waste stored at the port of Valkom before incineration. Much of this waste had travelled from southern Italy to feed Finland’s growing waste-to-energy (WtE) sector. The situation highlights a dilemma faced across the Nordic region: how to balance the benefits of burning trash for energy with the social, environmental, and climate costs it brings.
Finland: Imports Fueling the Fire
Finland burns the majority of its municipal waste: in 2022, around 56% was sent to incinerators, while less than 1% went to landfill. District heating systems depend on this flow, and with domestic waste insufficient to keep plants running at full capacity, imports have surged. By 2024, Finland was importing nearly half a million tonnes of waste, much of it from Italy. While efficient in energy terms, this has led to local flashpoints. In Loviisa, families reported being unable to let children play outdoors during summer due to the stench, and inspectors even found traces of Legionella bacteria near waste piles. The Finnish Environment Institute has since tightened inspection rules. Yet the episode underscores a national tension: is Finland relying too heavily on foreign trash, at the expense of recycling targets and local well-being?
Denmark: Cutting Back After a WtE Boom
Across the Baltic, Denmark has long been synonymous with waste incineration, epitomised by Copenhagen’s iconic CopenHill plant—complete with a ski slope on its roof. For decades, Danish cities have relied on WtE as a backbone of district heating. But climate policy is now pushing in a different direction. The government has committed to reducing national incineration capacity and to exploring carbon capture and storage (CCS) at major plants. Denmark’s pivot is clear: the goal is to shift away from simply burning more waste and toward cutting emissions and building a true circular economy.
Sweden: The Import Giant
If Finland’s Valkom is a localised stress point, Sweden is the regional giant of waste imports. Its vast WtE system is deeply integrated into district heating, and for years it has attracted combustible waste from abroad—particularly the UK. Sweden consistently leads Europe in energy content recovered from imported municipal waste. This has provided stable heating and predictable plant economics, but critics argue that it risks undermining recycling incentives both at home and abroad. Sweden shows what happens when WtE capacity is maximised: imports become a structural feature of the system.
Norway: Putting a Price on Carbon
Norway has also invested heavily in WtE, but with a twist: the government applies a CO₂ tax on emissions from incineration. That tax rose in 2023 and will climb steeply toward 2030 unless plants install capture technology. In Oslo, the Hafslund Celsio project is preparing to capture CO₂ from household waste incineration and store it offshore in the Northern Lights facility. This makes Norway the first Nordic country to explicitly tie WtE to carbon-capture obligations—using fiscal pressure to force innovation.
Iceland: Starting From a Different Base
Unlike its Nordic neighbours, Iceland has historically relied more on landfilling. But with methane emissions and costly long-distance waste transport raising concerns, new and modernised WtE facilities are being introduced. The scale is smaller, but the logic is the same: cutting landfill dependence while adding support to geothermal-based district heating.
A Nordic Balancing Act
Together, these experiences show diverging paths:
Finland leans on WtE imports, with Loviisa illustrating local backlash.
Denmark is deliberately shrinking incineration capacity while investing in CCS.
Sweden embraces imports as part of its energy system, despite recycling concerns.
Norway imposes carbon pricing to push the sector toward capture and storage.
Iceland is using WtE selectively to reduce landfill reliance.
The lesson for Loviisa and Finland is that burning trash cannot be treated as a purely technical solution. Local health and quality of life, the EU’s circular-economy goals, and climate neutrality targets all demand that WtE be carefully managed. In the Nordic context, Loviisa is not an isolated case but part of a much larger debate about whether burning trash is a bridge to sustainability—or a barrier to it.
