Porsgrunn videregÃÂ¥ende skole is an upper secondary school located in the town of Porsgrunn, in the county Telemark, in Norway. The school is Telemark county's biggest school together with Skien videregÃÂ¥ende skole, and has a total of 1150 students and about 170 employees. It is one of 24 schools in Norway to offer an IB Diploma Programme.