The energy transition will be a multi-faceted process with each contributing energy source offering enormous potential but often bringing new challenges. The oil and gas sector is rapidly improving efficiency and reducing its carbon footprint, but can this be done around the world at reasonable cost? The boom in renewables continues apace, across ever more markets around the world, but requires peak demand support and smart grid management. And green hydrogen potentially offers a carbon-neutral high energy density fuel, but can it be cost competitive at scale? In this report, industry experts identify problems and present potential solutions.