Acmar

Acmar SpA (Cooperativa Muratori Cementisti di Ravenna) was engaged by Terna under a temporary association (Associazione Temporanea d'Impresa) with Pellegrini to deliver civil works for the SAPEI HVDC interconnector's converter stations. Acmar's documented scope, valued at €15.24 million, covered the Latina static inverter plant on the Italian mainland — the southern terminal of the ±500 kV, 1,000 MW SAPEI bipole link to Sardinia. The contract comprised the construction, on an approximately 35,000 m² site, of the new AC/DC conversion station. Acmar combined two civil approaches: parts of the buildings used prefabricated prestressed reinforced concrete structures with external walls in horizontal prefabricated panels of lightweight concrete, while the remainder used cast-in-place reinforced concrete with hollow-core precast slabs. The hybrid system suited a layout that needed to house the heavy electrical equipment supplied by ABB (now Hitachi Energy) while allowing rapid weatherproof completion of the secondary spaces. Acmar's civil platform delivery enabled the converter equipment installation that brought SAPEI Pole 1 into service in November 2009 and the full bipole into commercial operation on 17 March 2011. The role complements the parallel Pellegrini civil works scope at the Fiumesanto station in Sardinia and is reported under the Acmar–Pellegrini JV captured in the project's procurement_other lifecycle event.