Chinese Group Chint Files the Environmental Scoping for the 1,300 MW Cluster Alqueva — São Gião, Tapada Branca and Monte Santos Bundle Solar, Battery Storage and Two Wind Parks Across Portel and Vidigueira in the Baixo Alentejo

The Chinese-owned Chint group has filed the proposta de definição de âmbito (scoping proposal) for the environmental impact assessment of three solar projects and one hybrid solar-plus-wind installation packaged together as the Cluster Alqueva-Portel, totalling 1,300 MW of installed capacity across the Baixo Alentejo concelhos (municipalities) of Portel and Vidigueira in the Beja district. The scoping document, now under public consultation, is the first formal step in the environmental assessment of one of the largest single renewable bundles ever proposed for southern Portugal.

The cluster is built around three photovoltaic sites — São Gião at 563 MW, Tapada Branca at 580.5 MW and Monte Santos at 111 MW — supported by 358 battery storage units delivering a combined 895 MW of power and 1,790 MWh of energy capacity. Two wind parks add a further 50 MW from seven turbines. In total the developer plans to install close to two million photovoltaic modules, the majority concentrated at São Gião and Tapada Branca. Grid connection runs through three new very-high-voltage lines of 7.4, 8.9 and intermediate lengths.

Chint has been preparing the package since 2019. The 1,300 MW now entering the environmental queue is a slice of a far larger pipeline: in the latest list of grid-connection contracts agreed with Redes Energéticas Nacionais (REN — Portugal's transmission grid operator), Chint Solar holds 2,520 MW spread across eight projects, all in the Baixo Alentejo. That figure represents more than 20% of the total capacity covered by REN's most recent contract round, marking the company as the single largest contracted player in Portugal's current solar build-out.

Chint Solar, headquartered in Hangzhou, has operated in Europe since 2016 with solar projects in eight countries. Inside Portugal the group already runs photovoltaic plants in Albergaria-a-Velha (Aveiro district) and Pias (Beja district). The investment value of the Alqueva cluster has not been disclosed and will only firm up after the environmental authority — the Agência Portuguesa do Ambiente (Portuguese Environment Agency — APA) — accepts the scoping proposal and the developer commissions the full Estudo de Impacte Ambiental (Environmental Impact Study — EIA).

The chosen sites sit inside the Guadiana hydrographic region but do not overlap with any area inside the national classified-areas system. Surrounding land, however, is classified as critical or very critical for raptors and other sensitive bird species — a constraint that has already complicated the licensing of solar farms elsewhere in the Alentejo. Vegetation surveys flag stretches of Mediterranean scrub and montados de azinho e sobro (holm-oak and cork-oak woodland), both of which include protected species requiring authorisation from the Instituto da Conservação da Natureza e Florestas (Institute for the Conservation of Nature and Forests — ICNF) before any felling. The scoping document does not yet quantify the number of trees affected but notes that the layout will be adjusted to minimise impacts and that a reforestation-compensation plan will accompany the works.

Soils across the area are described as having low agricultural aptitude and limited capacity for use, easing one of the standard land-use objections to large-scale solar in Portugal. Each plant will be enclosed by two-metre-high metal-mesh fencing, with perimeter lengths of 12 km, 27.7 km and roughly 30 km — a footprint that gives a sense of the cluster's physical scale on the ground.

The scoping consultation runs through the standard APA window, after which the agency will issue the formal scoping decision. A favourable decision would clear Chint to submit the full EIA, with construction unlikely to start before late 2027 even on an optimistic timeline.