Finland’s Caruna Oy invites bids for construction of 110 kV line and substation November 6, 2015 | Europe News Finland's Caruna Oy has invited bids for the construction of the 110 kV Seitenoikea-Peuravaara transmission line and Peuravaaran substation. This content is available to only paying subscribers. Username or E-mail Password Remember Me Forgot Password