Climate change will affect the vulnerability of the Swedish energy security. Increased precipitation and heavier downpours will lead to an increased risk of landslides and floods.
Other weather-related threats such as extreme heat waves, storms, thunderstorms, sleet and icing may also increase. Events like these are already threats to the Swedish energy system.
Energy security can also be affected by changes in the annual pattern of energy use, runoff patterns for water power, higher cooling water temperatures and changes in biofuel management.
None of these changes manifest any greater vulnerability of the energy security, but in combination they may weaken the Swedish energy supply chain.
Largest impacts locally and regionally
There are few weather-related threats that are expected to give rise to nationwide disturbances, rather the impacts are predicted to be the biggest locally and regionally. Electrical cable systems are exposed to greater risks by being used over long distances, both underground and above, over areas where the ground has less bearing capacity, in order to reach power plants and housing.
Many different types of weather threats, and also in combination with other external factors, can cause adverse events in the energy system. Third parties may experience the consequences such as limited access to energy, high energy prices and/or interruptions in the delivery.
Because energy security concerns so many, efforts at national, regional and municipal levels will be needed. The Swedish Energy Agency has proposed measures for trade associations, private individuals, companies, funding agencies, municipalities, authorities and government.