The amount of waste piling up from solar panels and wind turbine blades can be measured in tons. And the industry is just getting started.
Almost all spent solar panels in the United States end up in landfills, and many first- and second-generation panels are already tapping out, well ahead of their anticipated 30-year lifespan.
Currently, about 7,000 blades are scrapped per year in the United States, according to David Morgan, chief strategy officer for Carbon Rivers, a Tennessee-based recycling center for advanced materials.
Of all the glass fiber waste that Carbon Rivers receives, wind turbine blades are the most challenging, Mr. Morgan said.
“They’re a very hardy, robust material. They’re large and cumbersome to deal with,” he told The Epoch Times.
As wind turbine graveyards have turned into viral video content, the wind industry has become more “conversational” about end-of-life solutions, Mr. Morgan said, but it’s not set up for a “composite circular economy.”
When it comes to truly “green” solutions, a “circular economy” is vital, Mr. Morgan said. It’s basically a business model that prioritizes the reuse, repair, or regeneration of materials to continue production in as sustainable a way as possible.
He said renewable waste isn’t just an infrastructure problem, there are also legislation gaps.
“Right now, you can largely landfill wind blades. It varies state by state.”
The U.S. Environmental Protection Agency (EPA), under former President Donald Trump, identified the looming problems with increasing renewable energy waste.
Expanding Industry
As the so-called renewable energy industry expands—largely because of massive subsidies from the Biden administration—so does the waste on the back end.Renewable energy sources accounted for about 21 percent and 18 percent was from nuclear energy. An additional fraction was from small-scale solar systems.
Solar panels have a life span of up to 30 years. Understandably, some environmental organizations are raising the alarm.
“The solar waste would reach the height of two Mt. Everests.”
E-Waste
Another area of waste—electronic waste, commonly known as e-waste—is growing at an exponential rate. It’s the fastest-growing solid waste stream in the world and includes renewable items such as solar panels and electric vehicle (EV) batteries.Only a small portion is being recycled.
Focused on breaking down and recycling all kinds of e-waste, Mr. Williams said ERI maintains a “military grade” level of data destruction when it comes to electronics.
Privacy protection is a huge concern with e-waste.
“It becomes not just an environmental issue, not just a human rights issue, it’s also a cyber security issue. A lot of technology today contains private data,” he said.
In the early days of e-waste disposal, negligent companies handled e-waste in a way that left the door wide open to data theft.
“What we found were these unscrupulous types were just shipping this stuff to developing nations ... and it was a huge privacy challenge because of the data,” Mr. Williams said.
Data security preparations must also be made for EVs, and not just their potentially volatile batteries, but also for the onboard computers in EVs when they reach the end of their life.
“Cars are particularly scary because the type of data that is captured is very personal. It knows your routes, the weight, and sizes of the people sitting in the seats of the car,” he said. “It’s kind of scary to think about.”
While ERI isn’t seeing a lot of solar panels or EV-related battery waste just yet, Mr. Williams said they’re ready for it.
“They will ultimately come to our door. We don’t turn any e-waste away.”
He said great strides have been made in the past two decades regarding the public’s disposal of e-waste.
In the early 2000s, when ERI was first getting started, Mr. Williams says everyone had “old TVs in their garage or attic. People didn’t know what to do with them.”
The same goes for the younger generations with retired cellphones. But he says attitudes have changed over the past 10 to 15 years, and much of that has to do with the data security challenges involved with e-waste.
Mr. Williams isn’t daunted by the coming influx of solar panels and EV components.
“Even with lithium-ion batteries and solar panels, they aren’t the last mile. We know there will be something new at some point.”
He said transparency has been an issue with companies claiming to recycle e-waste in years past, with some advertising eco-friendly solutions while secretly dumping their e-waste in landfills.
Domino Effect
Recycling dead solar panels, EV batteries, and wind turbine parts are major components of the waste problem, but supportive infrastructure is also impacted as alternative energy production ramps up.Chief among this infrastructure are electrical transformers, which industry insiders say there’s a skyrocketing demand for both new and reconditioned units.
Reconditioning and returning existing units from solar farms have become an integral part of Maddox’s business, Mr. Saunderson told The Epoch Times.
“We buy from pretty much anyone and everyone. There’s enormous demand,” he said.
Right now, demand for transformers is exceeding supply, including within the renewables sector, Mr. Saunderson said.
“Doesn’t matter what segment you’re in. It’s really hard to get a transformer quickly ... If you have an existing project and you have a failure, a lot of times you can’t wait 50 weeks,” he said.
Maddox’s turnaround time on a reconditioned transformer is one to four weeks.
He said renewable energy farms tend to run their transformers “pretty hard,” causing them to wear down faster.
Refurbishing an existing transformer is the quickest option, while recycling is a lengthier, more intensive process requiring more time and logistics to make its way back into the circular economy.
“We’re able to take a product [and] bring it back to life to keep it from being disassembled or sent to a recycling facility,” he said.
But the EV industry demand is stretching resources even thinner.
“In the EV segment, there’s a battle for EV chargers [stations],” Mr. Saunderson said, saying this additional competition for transformers needed to power EV charging stations “hamstrings” the ability to get ahead of the shortage.
Hazardous Material
New battery technology, especially the lithium-ions that run EVs, bring a new set of challenges and toxic chemicals to the recycling business.From a waste management standpoint, there’s a silver lining when it comes to processing EV batteries, according to Mr. Randolph. In spite of the complex composition of EV batteries, he believes recycling will be the “clear winner” in the long run due to the short supply of key elements, such as cobalt, used in their construction.
He says the value of the minerals recovered as “black mass” from retired batteries is far too valuable to simply dump in a landfill.
It’s also incredibly hazardous.
“We can’t keep throwing hazardous materials in landfills. And you’re talking to a mining engineer,” Mr. Randolph said.
However, it doesn’t make EV batteries any less challenging to break down.
“We stood back and said, you know, lithium batteries are our greatest threat and our greatest opportunity,“ he said, adding that lithium-based batteries are ”a lot more complex.”
Moreover, they can start fires that are impossible to extinguish through traditional methods. Mr. Randolph said that since oxygen isn’t part of the combustion equation with lithium batteries, water and some conventional suppression methods won’t work.
This becomes particularly dangerous when more than one cell in a compromised battery ignites, creating what’s known as “thermal runaway.”
“If we don’t cool it down quick enough, and for a long enough period of time, it will generate heat and catch itself back on fire.”
And while the phenomenon is rare, it still happens.
Mr. Randolph said Ecobat uses special boxes to contain and transport old or compromised EV units. This becomes critical since the logistics of moving EV batteries is a challenge in itself.
“If your EV batteries are old, you’re more likely to have a problem just getting them to the plant,” he said.
Ecobat began its journey recycling lead batteries, of which up to 98 percent of its critical components can be recycled. Meanwhile, lithium-ion batteries are trailing behind.
“People are struggling to get to 65 percent” of critical components extracted and recycled, Mr. Randolph said.
He said Ecobat currently processes about 30,000 tons per year.
“Three plants that run 10,000 tons per year, each,” he said. And they’re preparing for a mountain more as EVs become more prevalent.