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Solar Recycling Update | Breakthrough at Deakin

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 There’s been a big announcement from Deakin University who have figured out a process to remove the silicon from used solar panels – repurposing it for lithium-ion batteries. Let’s learn more about this solar recycling update which was also discussed over at Renew Economy. 

Solar Recycling Update | Breakthrough at Deakin

(source: https://www.deakin.edu.au/ifm)

There’s been a new advancement in solar recycling research. The relatively short lifespan of solar panels and the huge issue of e-waste has been something researchers have been wrestling with for years.

Deakin University’s Institute for Frontier Materials has been where Material scientists Dr Md Mokhlesur Rahman and Prof Ying (Ian) Chen have conducted this groundbreaking research. Probably makes more sense coming from them, so here you go:

“Our discovery addresses several significant challenges currently facing industries dependent on batteries and energy storage heading into the future, Dr Rahman said.

“First, being such an exceptionally high value commodity with widespread applications we do not want any of this precious product wasted. Battery grade nano-silicon is highly expensive and retails for more than $44,000 per kilogram.

“Second, with the automotive industry set to be battery driven in the future, the push to find ways to increase battery capacity is growing.

“Part of the silicon repurposing process is to nano-size the battery grade silicon, leaving a nano-silicon which can store about 10 times more energy in the same space.” Dr Rahman continued.

His colleague Dr Chen elaborated on the importance of being able to extract the silicon cells and reuse them:

“Silicon cells are the most important component of a solar panel, transferring the sun’s energy into electrons,” Professor Chen said.

“They’re also a high-value material being a chemical element and far too precious to end up as waste, which is why this finding is significant.

“We can’t claim solar panels to be recyclable, in a circular economy sense, until scientists find a way to harvest and repurpose their most valuable components,” he said.

So whilst it’s not solar recycling per se, it’s certainly a gigantic step in the right direction. What will this mean for solar panel recycling companies such as Reclaim PV? Hopefully it’ll give them a big push as well. The lifespan of solar panels has always been the white elephant on the roof so the more we can extract and repurpose from old panels the better.

According to an article on Renew Economy, the project is supported by Institute for Frontier Material’s Circular Economy Strategy Lead, Catherine McMahon, in collaboration with Deakin Research Innovations’ Senior Commercial Manager Andrew Rau and industry partner Delaminating Resources Melbourne.

 

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Berri Solar Farm to be sold by the Riverland Council

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The $25m Berri Solar Farm is going to be sold by the Riverland council for a firm to take over the development due to a customer pulling out of a PPA (Power Purchasing Agreement).

Berri Solar Farm to be sold by the Riverland Council

Chief Executive of Berri Barmera, Karyn Burton, said the catalyst for the decision to sell the Berri solar farm was due to a major client pulling out of a Power Purchasing Agreement (PPA) due to being sold to another company. 

The farm was approved by the Riverland Regional Development Assessment Panel back in 2017 but construction work hasn’t commenced yet. The council also won a $5 million grant as part of the State Local Government Infrastructure Partnership for the build.

“That was in the mix until June, when they advised (the) council they were going to seek opportunities elsewhere,” Ms Burton said.

“They’d been taken over by a global group and they were looking at their energy needs on a global basis.”

Ms Burton continued to discuss the way the government would like to look at the 

“We’ll sell it as a shovel-ready project,” Ms Burton said.

“Councils are quite risk adverse – they won’t risk going into the market where prices for power fluctuate, not giving us that assurance that we’d cover that as a stand-alone business.

“Whereas there are other solar players out there would be able to do that.”

Mayor Peter Hunt said “despite putting in our best effort to deliver a great project for Council, Accolade Wines and the Community, the timing and justification to continue with the project was simply not right in the end. Accolade Wines was bought by new owners in 2018 and in terms of energy procurement and use, they are considering a number of options. We needed an answer and in this case they made it clear that they could not commit further to the project. The upside is we have fielded several enquiries to buy the project including lease rights to the old Racecourse site. We have expert advice that the project has strong commercial value and that is why we have decided to call for expressions of interest from parties seeking to buy the intellectual property and development rights.”

The council has called for expressions of interest in parties interested in buying the project, until September 27.

Read the article on the Berri Barmera Council website ‘Solar Farm Project to be Sold‘ if you’d like to learn more about the next steps for the Berri Solar Farm. 

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The Planetary Society’s LightSail 2 Solar Satellite

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The Planetary Society have launched a solar satellite which has been named the Lightsail 2. The solar sailing Cubesat device will be in orbit for the rest of August. Let’s learn more about the solar sailing technology and what the Planetary Society hope to achieve with the launch of this fascinating new piece of technology! 

The Planetary Society’s LightSail 2 Solar Satellite

The Planetary Society’s LightSail 2 Solar Satellite (source: planetary.org)

The concept of ‘solar sailing’ means that an object will be moved by photons escaping the sun’s gravitational pull. According to Popular Mechanics, It’s the second ever solar sailing object to fly – with the solar satellite following IKAROS (Interplanetary Kite-craft Accelerated by Radiation Of the Sun) from Japan, which launched in 2010. IKAROS certainly has the cooler name, but the LightSail 2 has some superior technology – an aluminzed (a coating of aluminum alloy) Mylar sail and far better uptime.

“For The Planetary Society, this moment has been decades in the making,” said Planetary Society CEO Bill Nye. “Carl Sagan talked about solar sailing when I was in his class in 1977. But the idea goes back at least to 1607, when Johannes Kepler noticed that comet tails must be created by energy from the sun. The LightSail 2 mission is a game-changer for spaceflight and advancing space exploration.”

“We’re thrilled to announce mission success for LightSail 2,” LightSail program manager and Planetary Society chief scientist Bruce Betts said. “Our criteria was to demonstrate controlled solar sailing in a CubeSat by changing the spacecraft’s orbit using only the light pressure of the sun, something that’s never been done before. I’m enormously proud of this team. It’s been a long road and we did it.”

If you’re interest in reading more, the Planetary Society have created a site named Mission Control where you’re able to track the LightSail 2 in space. To visit Mission Control please click here. 

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Victorian Solar Rebate Rally | Solar Homes

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Victorian Solar Rebate Rally – a rally was held at Victoria’s Parliament House today where hundreds of people in the solar industry voiced their displeasure with the rollout (and subsequent roll-in) of the Victorian solar rebate. Have they got a fair enough gripe? Let’s take a look.

Victorian Solar Rebate Rally

The original Victorian solar rebate (AKA Solar Homes) was announced in the lead-up to the 2018 election by Daniel Andrews and Lily D’Ambrosio. The plan was to install subsidised solar panels and/or solar batteries ($2,225 per system) – which then caused statewide PV solar installations to skyrocket from 3,000 / month to 7,000 / month.

Presumably the industry didn’t have too many issues with that, but the problem was when the scheme was paused in April 2019, only just recently reopening under an agency named Solar Victoria who had Stan Krpan from the Victorian Cladding Taskforce heading it up. 

This stop/start issue has seen a couple of follow-on effects – with owners now adopting a ‘wait and see’ approach and the subsequent slowdown in installations is causing a big bite for Victorian solar installers, especially those who have (bravely, given they’re relying on the Government) planned a growth strategy around the rebate. 

”This is a gold-level performance in incompetence,” said John Grimes of the Smart Energy Council in quotes relayed in The Age.

“The industry has become a solar coaster: one minute it’s up, the next it’s down.”

According to Mr. Grimes, installations across Victoria are down 30% since April. We also commend his pun game.

The Age article also quotes Dave Douglas of EverSolar who discussed his growth strategy prior to the rebate pausing and how it’s affected his business:

“We doubled in size because of this rebate. We put on an extra 20 staff, got more vans and ordered more solar panels.”

Mr. Douglas had a couple of ideas how to solve the issue – double the monthly subsidy quota or drop the eligibility from a pre-tax household income from $180,000 to about $80,000.

Opposition energy spokesman Ryan Smith was at the rally as well, with his own opinion (which, surprisingly, was the opposite of the incumbent Government) on the rebate:

“The change has made it more difficult to have panels installed,” he said. “Far from being cheaper, as businesses close, competition will dry up and panel installation costs will rise.”

Thoughts? Are you a solar business owner or a Victorian looking to get solar installed on your home? We’d love to hear from you.
 
To read more about the Victorian solar rebate please click here.

 

 

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Solar Waste – What’s the state of solar panel recycling?

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Solar waste is a currently unavoidable byproduct of Australia’s obsession with solar power. But what do we do with these panels when they reach end of life? Let’s take a look at solar panel recycling and what the current climate is, helped by a recent ABC Radio show about the topic.

Solar Waste and solar panel recycling – a primer.

We wrote about recycling solar panels back in January, but a new interview with Reclaim PV (who we talk about in the other article too) has some more information about this critical issue. 

A radio program by the ABC had some very interesting thoughts on the topic – you can listen to it here. 

The panel included:

  • Jeremy Hunt, solar panel installer
  • Professor Rodney Stewart, Griffith University
  • Clive Fleming, solar panel recycler, Reclaim PV
  • Andrew Gilhooly, Sunpower

With two million houses in Australia now enjoying the fruits of renewable energy and installing solar on their rooftop, their lifespan of 10-15-20 years is now starting to slowly fizzle out, especially for the early adopters. However there’s a huge issue to do with disposing of the solar PV waste in an environmentally friendly fashion.

Professor Rodney Stewart from Griffith University estimates that by 2050, we’ll have 1,500 kilotons of solar waste which will be sent to landfill unless we can figure out a more intelligent way to dispose of something supposed to help the environment. 

Solar Waste - Reclaim PV
Solar Waste – Reclaim PV (source: reclaimpv.com)

The only company in Australia to recycle panels is Reclaim PV in Adelaide, who take in 50,000 per year, but only panels manufactured without toxic chemicals. They then, according to owner Clive Fleming,

“…get the cells, completely separate that as well for the silver contacts, the aluminium and then the silicone to provide those back out to industry.”

According to the ABC program host Emilia Terzon, the Federal Government says it’s committed $167 million to an Australian recycling investment plan and state and federal environment ministers are expected to discuss how to tackle solar waste when they meet later this year. The Government is looking to set rules around how the industry deals with dead solar panels – adding them to the Product Stewardship Act, which mandates how electronic waste is dealt with.

Australian Council of Recycling chief executive Peter Schmigel also had a quote in the Sydney Morning Herald earlier this year about how a proper plan for recycling PV cells could have a positive effect on the economy:

“Recovery rates have been out of sight since the beginning of the scheme, nobody has said anything at all about there being an inbuilt recycling cost. It generates jobs, it generates environmental outcomes and yet for some reason we have policymakers who are hesitant about [establishing similar schemes] for solar PVs and batteries,” he said.

Watch this space. There will be plenty more on this topic as panels continue to reach EOL (end of life) and the policymakers are forced into action. 

 

 

 

 

 

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