Maria Westrin of the Swedish Energy Agency said that unusually mild weather and high hydro reservoir levels, together with stronger wind power and good nuclear availability, have kept Sweden's electricity system stable for now.She warned that demand is vulnerable because Sweden has a large amount of electric heating in the form of heat pumps and direct electric heaters, so very cold weather would push consumption up sharply and could trigger price spikes.Svenska Kraftnät is procuring a new capacity reserve after an earlier procurement was canceled, and although the immediate risk of shortages is small, authorities say simultaneous cold weather and major plant outages could still cause shortages or higher prices.