Companies are searching for ways to deal with the tens of thousands of blades that have reached the end of their lives says Chris Martin.
We are not aware of any substantial progress with the recycling options. We suspect that the underlying problem – that the process costs of recycling the blades are far more than the value of the materials/energy recovered – will remain.
And with increasing energy costs, those process costs are not going to come down. So the blades will continue to pile up in landfills. A classic example of the unsustainability of “renewable energy” – powered by magical thinking.
The article makes these points:
A wind turbine’s blades can be longer than a Boeing 747 wing, so at the end of their lifespan they can’t just be hauled away. First, you need to saw through the lissome fiberglass using a diamond-encrusted industrial saw to create three pieces small enough to be strapped to a tractor-trailer.
The municipal landfill in Casper, Wyoming, is the final resting place of 870 blades whose days making renewable energy have come to end. The severed fragments look like bleached whale bones nestled against one another.
“That’s the end of it for this winter,” said waste technician Michael Bratvold, watching a bulldozer bury them forever in sand. “We’ll get the rest when the weather breaks this spring.”
Tens of thousands of aging blades are coming down from steel towers around the world and most have nowhere to go but landfills. In the U.S. alone, about 8,000 will be removed in each of the next four years.
Europe, which has been dealing with the problem longer, has about 3,800 coming down annually through at least 2022, according to Bloomberg NEF. It’s going to get worse: Most were built more than a decade ago, when installations were less than a fifth of what they are now.
Built to withstand hurricane-force winds, the blades can’t easily be crushed, recycled or repurposed. That’s created an urgent search for alternatives in places that lack wide-open prairies. In the U.S., they go to the handful of landfills that accept them, in Lake Mills, Iowa; Sioux Falls, South Dakota; and Casper, where they will be interred in stacks that reach 30 feet under.
“The wind turbine blade will be there, ultimately, forever,” said Bob Cappadona, chief operating officer for the North American unit of Paris-based Veolia Environnement SA, which is searching for better ways to deal with the massive waste. “Most landfills are considered a dry tomb.”
“The last thing we want to do is create even more environmental challenges.”
For the full article, please click here:
Fragments of wind turbine blades await burial at the Casper Regional Landfill in Wyoming. Photographer: Benjamin Rasmussen for Bloomberg Green