IDAE — Institute for Energy Diversification & Saving (Instituto para la Diversificación y Ahorro de la Energía)

Funds Spanish energy efficiency and clean power through research pilots, industrial energy saving support, and climate-aligned projects.

Instituto para la Diversificación y Ahorro de la Energía, or IDAE, is Spain's main public delivery body for energy efficiency and renewable-energy policy. Founded in 1986, it sits under the Ministry for Ecological Transition and Demographic Challenge and operates as a state-owned business entity rather than a ministry.

Its funding work is tied to Spain's Recovery and Resilience Plan, the ERDF 2021-2027 framework, and the National Energy Efficiency Fund. The active portfolio covers electric vehicles, hydrogen production, building rehabilitation, industrial efficiency, offshore wind, island energy transition, and energy communities, with named lines such as Plan Auto+, MOVES Corredores, H2 Pioneros, PREE 5000, PREE Terciario, CE OFICINAS, and CE IMPLEMENTA. It also manages Spain's contribution to the EU Hydrogen Bank Auctions-as-a-Service channel, with €465 million committed to hydrogen and industrial heat auctions.

Most consumer and SME schemes are delivered through the autonomous communities, so the applicant sees a regional channel on top of the national one. That operating model makes IDAE less like a single grant counter and more like a policy engine that sets national energy priorities, then routes execution through regional partners and call-specific programs. It is the right place for projects in mobility, industrial decarbonization, clean heat, and energy-system transition.