Plenitude, controlled by Italian oil-and-gas major Eni SpA (<a href="https://www.borsaitaliana.it/borsa/azioni/scheda/IT0003132476.html?lang=en" target="_blank">BIT:ENI</a>), has signed a 10-year deal to supply green electricity to Italian motorway operator Autostrade per l'Italia (ASPI).