FUSION Issue 3-2026 DIGITAL - Flipbook - Page 32
MATERIALS
FROM
WIND TO
WAVES
“ The material was engineered
to survive decades in a gale.
It arrives at its second life
with plenty of performance
still to give. ”
A wind turbine blade and a surfboard fin have more
in common than you might think. One Australian
project has turned the first into the second, and
pointed at an answer to one of the composite
industry's hardest questions.
Why this matters beyond the beach
A wind turbine blade is a triumph of composite engineering. Tens of
metres long, impossibly strong, engineered to flex in a gale for twentyfive years without failing. It is also, when that quarter-century is up,
one of the most stubborn objects to recycle that the industry has ever
produced. The very things that make a blade brilliant in service, the fibres
and resin locked permanently together, are exactly what make it so hard
to deal with at the end of its life.
The scale of the underlying problem is significant. Around 85 to 94
per cent of a wind turbine by mass is already recyclable, but the
blades have always been the exception, and the volume heading for
retirement is climbing steeply. Australia alone faces a growing wave of
decommissioned blades over the next decade. The same reckoning is
arriving across every mature wind market, including the United Kingdom.
For years the default answer was grim: cut the blades up and bury them.
But a project in Australia has just shown what the alternative looks like,
and it is surprisingly good fun. Retired turbine blades are being turned
into surfboard fins.
The same material, a second life
The renewable energy company Acciona, through an initiative it calls
Turbine Made, partnered with the Sydney surf brand Bolero Surf to
produce what they say are the first commercially available surfboard fins
made entirely from recycled wind turbine blade fibreglass. They were
launched at a major Australian club surfing competition on the Gold
Coast in early 2026, where a professional surfer put them through their
paces in live competition rather than a gentle demonstration.
The choice of product is not a gimmick. The fibreglass inside a turbine
blade is exceptionally strong, stiff, and consistent, precisely the qualities
a high-performance surfboard fin demands. The blade was engineered to
survive decades of punishing structural load, so the material arrives at its
second life with more than enough performance left to give. The surfer
testing the fins reported that they felt solid and quick through turns,
holding their own against fins made from virgin material.
31
It would be easy to file this under feel-good novelty and move on.
That would miss the point. What the project actually demonstrates is
a genuine circular pathway for one of the composite industry's most
awkward waste streams, proven not in a laboratory but in a real, sellable
product competing on performance.
There is a manufacturing lesson buried in the story too. By starting with
recovered turbine fibreglass rather than new material, the makers skipped
one of the most expensive and labour-intensive stages of traditional fin
production, and used that advantage to bring manufacturing back onshore.
Recovered composite, in other words, was not a compromise accepted for
environmental reasons. It was a commercial advantage that happened to
be greener.
The bigger idea
The surfboard fin is a small object carrying a large message. It says that
end-of-life composite need not be treated as waste to be hidden, but as
feedstock waiting for its next purpose. The challenge the industry now
faces is scale: turning clever, headline-grabbing demonstrations like this
into routine, high-volume pathways that can absorb thousands of tonnes
of retired structures rather than a batch of fins.
That is a hard problem, and it will not be solved by surfboards alone. But every
credible proof that recovered composite can compete with virgin material, on
performance and on cost, chips away at the assumption that these remarkable
materials are destined for landfill. The blade that spent twenty-five years
turning wind into power can, it turns out, spend its next chapter turning waves
into fun. That is a better ending than a hole in the ground.
