MANY MINDEDSpain mandates renewable electricity for data centers
Spain's Council of Ministers approved a draft royal decree on August 25, 2026, requiring data centers with electrical capacity of 1 MW or greater to source at least 80% of their electricity from renewable generation. The rule mandates that each new megawatt of data center demand triggers 1 megawatt of new renewable generation commissioned within 18 months of operation, and that at least 80% of consumption must come from renewables produced in the same hour. Projects with grid access granted since 2021 have 6 months to comply, while those awaiting grid access have 3 months. The requirement applies only to data centers operating within EU territory and meeting EU data sovereignty standards.
This mechanism forces immediate, scalable renewable deployment by tying data center expansion directly to new renewable generation. The hourly matching requirement prevents greenwashing by ensuring real-time renewable use, while the additionality rule ensures new generation scales with new demand. The Spanish government has granted 12 GW of grid access to data centers since 2021, creating a large pool of facilities subject to this transition.
For energy security and climate progress, this directly reduces the carbon footprint of a major electricity consumer while accelerating renewable adoption at scale. Data centers—critical for digital infrastructure—now face a binding path to cleaner power, moving toward a future where clean energy access becomes more widespread and stable.
The rule remains pending final legislative approval. The 12 GW grid access figure represents grants since 2021, not current active capacity. Additionality requirements exclude existing renewable contracts, and hourly matching applies only to facilities ≥1 MW. If approved, this could become a model for binding renewable integration in high-energy sectors.
Source: pv magazine