Like many recent retirees, Tore Halvorsen was looking forward to a less stressful life after years of hard work, in his case in the subsea oil and gas business.

He certainly did not see himself taking on challenging new tasks in a pioneering and sometimes controversial industry.

That changed in 2020, when he was contacted about an interesting new venture by Revus Energy and Spike Exploration co-founder Walter Sognnes and Hans Olav Hide, co-founder and chief executive of Multi Phase Meters and former HitecVision partner.