A new HVDC line will let Europe store more wind energy in Norway’s hydropower system Norway’s hydropower reservoirs make up nearly half of Europe’s energy storage capacity. European grid operators need energy storage to cope with an ever-mounting, always-shifting torrent of wind power. See the connection? So does Norway. In December, engineers will energize a new subsea power cable that will begin to bridge the gap between need and opportunity, greatly expanding European power systems’ access to Norway’s hydropower-rich power grid. The 240-kilometer cable across the Skagerrak Strait separating southern Norway and northern Denmark is Norway’s first new power link...