Named Palmela, the solar plant is being built on behalf of NextPower III ESG (NPIII ESG), a private solar fund managed by London-based NextEnergy Capital.
Eiffage Energia said on Thursday it has already begun installing fencing, trenches, performing earthworks and laying underground cables on the site in the town of Pinhal Novo.
With 74,124 PV modules and five 6.5-MVA transformation centres, Palmela should be able to produce enough clean electricity to meet the consumption of more than 22,000 people.
This is the second solar project that Eiffage Energia is building for NextEnergy in Portugal. The Spanish firm has already completed the works on the 17-MW Paderne park on the outskirts of Lisbon. Once energised, this PV plant will provide clean energy to some 9,000 people.