Pilar Sánchez Molina
Solar self-consumption viable on all Spanish roofs, regardless of orientation
Spanish researchers have discovered that 3 kW to 5 kW rooftop solar self-consumption systems can deliver competitive payback across most roof orientations, with coplanar designs often matching the performance of optimized setups at lower cost.
Spain’s CIUDEN tests 5.8 MWh sodium‑sulfur battery with solar and hydrogen
Spanish company CYMI has completed operational testing of a 5.8 MWh sodium‑sulfur (NaS) battery at the City of Energy Foundation’s (CIUDEN) Integra2H2 project, integrated with a 2.1 MW solar plant and two electrolyzers to produce green hydrogen.
Portugal to hold energy storage auction before January 2026
Portugal plans to hold an energy storage auction before January 2026 as part of a €400 million ($462.2 million) initiative to enhance grid resilience following an April blackout.
Spanish parliament rejects grid reform law proposed after April blackout
Spain’s parliament has rejected a legislative package aimed at reinforcing the grid and scaling up battery energy storage following the April 28 blackout.
EU delays battery due diligence requirement
The European Council has approved a law postponing implementation of due diligence obligations until Aug. 18, 2027, to give battery producers and exporters more time to prepare for its adoption.
Spain launches call for access to 3.68 GW of grid capacity
The Spanish government has kicked off its first grid-access tender for 3,681 MW at eight transmission nodes across six regions, targeting areas with large-scale industrial demand.
Argentina’s first energy storage tender secures 1.35 GW of bids
Argentina’s first energy storage tender drew 1.347 GW of bids from 15 companies proposing 27 projects, exceeding the 500 MW target and representing more than $1 billion in pledged investment.
Mexico introduces new rules for self-consumption
Mexico’s energy regulator has issued new provisions to streamline the permitting process for self-consumption power plants between 0.7 MW and 20 MW, aiming to improve legal certainty for project developers.
Iberdrola plans 1.32 GW pumped-hydro storage project in Portugal
Iberdrola has started approval processes for a 1.32 GW pumped-hydro storage project in Portugal. The Proyecto de Aprovechamiento Hidroeléctrico de Minhéu is set to become the country’s largest facility of its kind once completed.
Spain pairs battery storage with 26% of new rooftop PV systems in 2024
Around one-quarter of all new rooftop PV systems installed in Spain in 2024 included battery storage, underscoring continual growth in distributed energy, despite a decline in total installed storage capacity.
