Country evidence

Spain

Spain stands out for publishing transmission demand-access capacities and continuing to widen interconnection and renewable integration paths, giving projects better visibility than most peers.

Overall score

82 LeadingConclusion-first signal for new project interconnection readiness

Rank

#2Within the current editorial country set

Snapshot date

27 Mar 2026Country page and ranking use the same dated evidence package

Metric evidence

Score breakdown with source traceability

Compare with peer countries

Published Headroom

Demand access transparency is unusually strong

REE now publishes demand access capacities and node-level transmission visibility.

87 / 100direct

Why this score

Scored on the existence of public, location-relevant access-capacity disclosure for new demand and generation projects.

Red Eléctrica publishes demand access capacities on the transmission gridRed Eléctrica
Conoce la capacidad de accesoRed Eléctrica

Connection Process

Access process is readable and evidence-backed

Published access-capacity rules give projects a more legible path into the system than many EU peers.

76 / 100mixed

Why this score

Scored on whether the connection route is visible enough for developers to understand nodal viability before deep engineering.

Conoce la capacidad de accesoRed Eléctrica
Red Eléctrica publishes demand access capacities on the transmission gridRed Eléctrica

Reinforcement Momentum

Transmission expansion keeps pace with transition

Interconnection and renewable integration projects continue to widen usable network capacity.

82 / 100mixed

Why this score

Scored on visible reinforcement and the system's ability to keep integrating new renewable and load growth.

Electricity interconnectionsRed Eléctrica
Spain added 7.3 GW of new renewable capacity in 2024Red Eléctrica

Interpretation

How to use this country page

Operator-focused reading guidance

Use the overall score to scan, then the metric notes to understand why it lands there.
Confidence flags matter most where direct access-capacity reporting is weak.
Read this as a new-project interconnection brief, not as a full grid resilience judgment.

Enablers

What currently supports faster connection

High-value positives

Demand-side transmission access capacities are now published by node
Large annual renewable additions continue to be absorbed
Interconnection programme is expanding with France and Portugal

Constraints

What still slows new projects

Structural or procedural bottlenecks

Some access information remains specialised and operator-centric
Regional bottlenecks still require reinforcement sequencing