Energy planning, resource geo-strategy, energy security and the implementation of energy and climate policies as well as renewable energy feasibility projects. The context is usually Galician, Spanish and European, and in some projects, global. Circular and proximity economy issues. All issues related to economy, energy and climate. GREFIN is specialized in Regulation of financial systems in the EU; Regulation in the energy sector; Valuation of investment projects in regulated environments; Financial regulation and reporting and Environmental taxation in regulated environments.