Sonnedix Adds 60.9MW Solar, Charging Batteries

• Sonnedix launches two co-located solar-plus-storage projects in Italy and Portugal totaling 60.9 MW, boosting evening output, cutting curtailment, and unlocking grid-service revenue with scalable performance data.

Sonnedix said it has started operating two co-located solar-plus-storage projects totaling 60.9 MW: one in Italy and one in Portugal. The developer commissioned the parks as an initial “Phase 1” milestone, with solar generating capacity brought online first.

Both sites are planned to add battery storage to firm output, shift production from midday toward evening demand, and reduce curtailment risk. Co-located batteries are also expected to enable additional revenue through grid services and help protect power capture economics as solar penetration rises in Italy and the Iberian market. For Sonnedix, more operating MW will expand performance data and improve portfolio benchmarking and O&M scaling.

What do Sonnedix’s new co-located Italy and Portugal solar-plus-storage phases add?

• Adds grid-interactive operating assets in two markets (Italy and Portugal), improving Sonnedix’s ability to benchmark how co-located batteries behave under local dispatch rules, tariff structures, and grid constraints.
  
• Demonstrates a “solar-first, then storage” commissioning approach as a repeatable Phase 1 model, de-risking later build-out steps and smoothing the path for subsequent capacity additions.
  
• Increases firming capability: storage can reduce variability by maintaining output during evening peaks, helping capture higher-value hours and lowering reliance on midday generation alone.
  
• Reduces curtailment risk by enabling operators to absorb excess solar generation when grids are constrained, improving solar utilization rates and overall energy yield.
  
• Enables participation in more revenue “stacking” opportunities tied to flexibility—such as frequency and reserve-related services—by providing dispatchable power rather than only energy.
  
• Strengthens long-term power-capture economics as solar penetration rises, because batteries help manage ramping and forecast deviations that often drive penalties or dispatch limitations.
  
• Improves operational learning for battery performance in different climates and grid conditions, supporting better engineering decisions for thermal management, degradation monitoring, and maintenance planning.
  
• Expands the data pool used for portfolio analytics (availability, round-trip efficiency, state-of-charge management, and degradation), which can lower uncertainty for future financing and underwriting.
  
• Supports O&M scale benefits: having multiple operating co-located sites accelerates standardization of monitoring, spare strategies, and contractor workflows across regions.
• Signals a more strategic position for Sonnedix as an energy operator, not just a developer—strengthening credibility with offtakers, grid operators, and capital providers for further hybrid projects.