Market report · 25 Oct 2026
Portugal's power prices in 2026: wider spreads, more free hours
Portugal's daily 4-hour price spread averaged 119 €/MWh in 2026, 37 % more than in 2025. What 34 months of day-ahead prices mean for batteries.
Insights
What we learn building storage for Europe
Case studies from our projects, plain-language guides to Europe's flexibility markets, and news from Cubex.
Technical guide · 21 Oct 2026
Battery storage safety in 2026: what the failure data shows
Failures per GWh of battery storage fell 98 % between 2018 and 2025. What changed in cells, cooling, detection, suppression and rules, and what to check on your site.
Market report · 16 Oct 2026
Portugal's 2026 storage rules: what changes for battery projects
A new decree-law eases storage permitting, a 750 MVA standalone auction is postponed, and a capacity mechanism is planned. What each means for battery projects.
Technical guide · 13 Oct 2026
Rack, cabinet or container: sizing a battery for your site
Why a battery's power is set by its energy at 0.5C, how much floor space each format needs, and a worked example for a factory that wants to cut its peak.