Onshore wind

Trás-os-Montes, Portugal

Serra Alta

A ridge site that took four consent rounds. Underperformed its P50 in year one and has beaten it every year since.

A utility-scale solar array running toward distant hills at golden hour
Wind turbines standing on layered green ridges in morning mist

Capacity

96 MW

Commissioned

2021

Grid connection

150 kV, REN

Programme

61 months

Four rounds

The first submission was refused on landscape grounds, the second on birds, the third on access. The fourth moved six machines and reduced the tip height by twelve metres, and it was consented in nine weeks.

The year that missed

Year one produced 7% below the P50 case. Re-running the wake model at a finer grid explained most of it, and the correction is now in every ridge assessment we do.

What went wrong

Year one came in 7% under P50. We had modelled the ridge wake with too coarse a grid.

Have a site, a queue position or a problem with both?

Send us the constraint. We will tell you within a fortnight whether it is buildable and what it would take.