Qualla: Siadar Wave Power Station

Siadar Wave Power Station: Introduction

Sat, 30 May 2026 00:00:00 GMT

On 22 January 2009 the Scottish Government signed off on what was supposed to become one of the world's most ambitious wave-power schemes. A breakwater of ten concrete caissons would sit on the seabed four hundred meters off Siadar Bay on the north coast of Lewis. Inside the caissons, thirty-six to forty Wells turbines would spin in air pushed and pulled by the rise and fall of the Atlantic. The estimated cost was thirty million pounds. The estimated capacity was four megawatts. Headlines called it green-for-go. Three and a half years later it was cancelled, the seabed at Siadar still unbuilt-on, the turbines never installed.

Siadar Wave Power Station: The Place and the Plan

Sat, 30 May 2026 00:00:00 GMT

Siadar Bay opens to the northwest, a shallow scoop in the Atlantic-facing coast of Lewis where swell from a thousand miles of open ocean piles up against the shore. That energy is what made the bay attractive to engineers. The plan, developed by Inverness-based Wavegen with backi...

Siadar Wave Power Station: Why Wave Power Mattered Here

Sat, 30 May 2026 00:00:00 GMT

Lewis sits on one of the best wave-energy resources in Europe. The Outer Hebrides catch swell that has been building across the entire North Atlantic, and the consistency of that energy is precisely what an intermittent renewable like wind cannot offer. The Scottish Government ha...

Siadar Wave Power Station: How It Unraveled

Sat, 30 May 2026 00:00:00 GMT

The trouble was money, and time, and the slow grind of getting any first-of-kind engineering project across the line. In August 2011 npower Renewables, by then taken over by the German utility RWE, withdrew. The official explanation was commercial: the project no longer fit the c...

Siadar Wave Power Station: The Larger Lesson

Sat, 30 May 2026 00:00:00 GMT

Standing on the cliffs above Siadar, watching whitecaps roll in from the open ocean, the energy is obvious. Capturing it is not. The same wildness that makes Hebridean swell so promising to engineers also makes it brutal on equipment, expensive to install, difficult to maintain, ...