Core Team


CEO, Co-founder and Investor

Arne has been working as CEO in Tidetec since 2013 and is also a co-investor in Tidetec. He has been Member of the Board in Tidetec since his father Per Kollandsrud founded the company in 2000. Arne also represents family office Kollan AS, the main shareholder in Tidetec.


Advisor, Co-founder

Joachim has been working with business development in Tidetec. Joachim holds an M.Sc degree in Industrial economics and technological leadership from NTNU, Norway. Previously Joachim has worked as a management consultant in DNV GL Shipping Advisory and EY Advisory. Amland now holds a position as SVP Business Development at TOMRA Systems ASA


Strategy advisor

Investor and top-level executive with background from leading positions in the International Solar Energy Industry. Current: Co founder and CEO of circular economy venture Nuvosil AS. Former: CEO and General Counsel of Scatec AS and partner at Langseth Law DA



Arne Ziegler

Analysis Engineer, MSc
Partner & General Manager Femkuber AS

Arne has 20 years of experience with structural and mechanical engineering predominantly within the oil & gas industry. He has been leading analysts and engineers on a large variety of projects. He also has experience as a Warranty Surveyor from high-value projects mainly in the Norwegian offshore industry.

On his time off he is a devoted small-game hunter.



Frederik has over 25 years’ experience as an investor, board member and advisor with numerous environmental businesses. Frederik sits on the board of a number of clean-tech companies and maintains a wide international network of contacts focused within env ironmental business.

Board Members



Kristoffer Winther is the Chairman of the Board. He has followed the company from the very beginning from when it was founded at the Science Park at Ås. He has been CEO at Ås Science Park and is currently managing own investments. He hold a master’s degree in Econimics (Siv.øk).


Member of the board

Paal Raaholt is a merited entrepreneur with experience from launching and running new business from his first start up in 1988. He was Chairman of the Board of Inmeta Crayon ASA when the company was listed on the stock exchange in Oslo. He was also managing director in his first start up, Alternativ Data AS. Now he holds chairman of the board in six companies and member of the board in three companies he co-founded. He has a degree in Marketing and economics from Norges Markedshøyskole. He now focuses on investing in and develop business which can disrupt the marked it operates.


Member of the board

Kjetil Vågen is partner in Advokatfirmaet CLP DA Vågen assists clients in most business areas including corporate and company law, acquisitions and divestments, trademark law, competition law, franchise contracts, distribution agreements, joint venture agreements, supplier contracts, bankruptcy and contract law. Vågen is board member in companies within various sectors.


Member of the board

Arne represents the biggest shareholder Kollan AS in the board. Arne has been working as the Managing Director in Tidetec since 2013 and is also a co-investor in Tidetec. He has been Member of the Board in Tidetec since his father Per Kollandsrud founded the company in 2000.


Member of the board

Arne Ziegler holds a Master’s degree in marine structures and is CEO of Femkuber AS Engineering; a company specialized in Finite Element Analyses and calculations of structures in steel, plastics and aluminium. He has extensive experience from the subsea and offshore industry with responsibility for analyses and calculations of large load carrying structures. He has been a major contributor to the development of Tidetec’s first prototype and to the establishment of Tidetec’s second patent concerning the turning of the turbine about a horizontal axis.