Rollo works at the intersection of clean energy, policy and politics, focusing on how the UK can deliver the power system needed for electrification, AI and long-term decarbonisation goals. He leads work on power, energy demand and data centres at the Renewable Energy Association, previously covering solar, storage, flexibility, markets and green finance. His background spans national and local government, regulatory analysis, and major cross-sector policy programmes. He has worked on general election strategies, media engagement, and speechwriting. Before the energy sector he advised City Hall on policy and campaigns.