Voltalia Wins 73-MW Solar EPC in Spain

Nov 12, 2025 10:42 AM ET
  • Voltalia wins EPC role for 73‑MW solar park in Castile and Leon, boosting Spain’s clean‑energy push and the Paris‑listed group’s European portfolio.
Voltalia Wins 73-MW Solar EPC in Spain

Voltalia SA said Tuesday it has been chosen to deliver engineering, procurement and construction services for a 73‑MW solar park in Castile and Leon, northern Spain. The French renewable power producer, listed in Paris under ticker VLTSA, will install the facility on behalf of an undisclosed client.

The project adds to Voltalia’s growing European portfolio as Spain accelerates utility-scale solar buildout. The company did not provide additional details on project timelines, investment size or expected completion. The 73‑MW plant is set to contribute to regional clean-energy targets in one of Spain’s most active renewable corridors, reinforcing Voltalia’s position in third‑party EPC contracting.

What are timeline, capex, and grid-connection details for Voltalia’s 73‑MW EPC in Spain?

  • Timeline: Company hasn’t disclosed dates; typical EPC for a 70–80 MW PV in Spain runs ~10–14 months from NTP to COD. If NTP lands in H1 2025, practical COD would be H1–H2 2026, with milestones: NTP → civil/electromech (4–8 months) → mechanical completion → grid energization → PAC (30–90 days) → FAC (~12 months after PAC).
  • Capex: Not disclosed; current Spain turnkey EPC benchmarks ~€0.55–0.75m/MWdc. For ~85–95 MWdc behind a 73 MWac interconnection, indicative total €40–55m including substation/line, excluding land, financing, and development fees.
  • Grid-connection: 73 MW requires high‑voltage tie‑in, typically 132 kV. Standard scope: onsite MV collection (30–33 kV), step‑up substation to 132 kV, and a dedicated 132‑kV line to an existing node with bay extension. Point of connection will be either REE (transmission) or Iberdrola Distribución i‑DE (dominant DSO in Castile & León), subject to granted access/connection under RD 1183/2020 and CNMC Circular 1/2021. Lead items: power transformer(s), protection/SCADA, and bay works (9–12 months manufacturing). Curtailment risk in Castile & León is moderate-to-low relative to Spain’s most congested nodes, but grid studies and final curtailment regime will govern dispatch.