Solarflux CEO Naoise Irwin Talks About CASPER & CSP FOCUS Features
I’ve written about Solarflux, its FOCUS parabolic dish, and its new tool, CASPER, which is a concentrating solar power (CSP) performance comparison tool. I’ve also had the pleasure of sitting down with Solarflux CEO Naoise Irwin and CTO John Fangman, who invented the FOCUS dish. This is the second part of that interview, this time talking about CASPER and how to use it, as well as a few other things.
CASPER
In a nutshell, CASPER is a web-based tool that compares the energy collection and conversion efficiency of the Solarflux FOCUS parabolic dish concentrator with a widely used type of CSP. Naoise explained:
“It’s a tool that compares the output of our system versus parabolic trough, which is the other technology that I’ve talked about. What it’s intended to do is to highlight how much more energy you would get in an equivalent area with FOCUS.
“For example, in Phoenix, Arizona, which is a great place for concentrated solar energy because it has so much sun, you get about 30% more energy using our system versus the trough. So we’re just trying to find a simple way for people to compare.”
Naoise demonstrated CASPER and shared the comparison for Baton Rouge, which receives a similar amount of sun as Phoenix. I was a bit surprised seeing that, as we get plenty of rain here.
“It calculates how much energy you’re capturing throughout the year — for our system and for the trough — and it tells you what the difference is.”
Features Of The Focus Parabolic Dish
Naoise told me that the FOCUS parabolic dish had several unique features. It’s made of aluminum and steel, making it extremely recyclable.
“The fact that it’s made from aluminum and steel makes it recyclable and environmentally friendly, and this is something we really like about it. I love photovoltaics (PV), but one of the issues is what happens to all the PV when it gets to end of life? It needs to be recycled, processed.
“They’re made of silicon and all of this processing has gone into making these panels. So, they’re not that easy to take apart at the end of their life. So, they’re going to probably largely end up in landfills, unfortunately, unless a huge recycling strategy is developed. Kind of like what you’re seeing in EV batteries. You’re seeing a big push to find an effective way to recycle the materials. I really haven’t seen that much done on the PV panels, and this is a concern.”
Photovoltaic Recycling & Developing Strategies
Solarflux’s system is relatively low tech, Naoise explained. All of the intellectual property is in the design, and they are using environmentally friendly materials. Regarding the designs, there are special patented features unique to the system.
“All of our materials are environmentally friendly and we won’t have that problem of dumping toxic materials into landfills. We want to highlight that aspect and push the idea for people to try to develop PV recycling.”
In April 2021, the National Renewable Energy Laboratory (NREL) shared the analysis from a study that a team of NREL researchers has been doing. That study was on how to manage retiring PV modules in support of the laboratory’s vision for a circular economy for energy materials. The research looked at laws and literature on the topic and also conducted interviews with solar industry stakeholders, regulators, and policymakers.
This led to the publication of a series of NREL technical reports that narrow down options and opportunities for PV equipment reuse and recycling. The article NREL published noted that currently there’s little incentive for the private industry to invest in PV recycling, repair, or reuse due to current market conditions and regulatory barriers. You can read more about that here.
In the final report, which you can read here, the researchers noted that the projected volume of decommissioned PV modules in the US alone presented end-of-life management concerns but also material recovery and secondary market opportunities.
Solarflux CTO John Fangman also added that the current trend in product development is the circular economy. He added that several electronics companies are looking at what percentage of the process is recyclable.
“In our case, I would say more than 90%.”
Naoise feels that this is a concern for the industry as a whole even though Solarflux doesn’t have the issue.
Next Step For Solarflux
The next step, Naoise said, was to develop consumer interest in the FOCUS parabolic dish. The next big goal is to raise capital while reducing costs.
“We want to move from making prototypes to making actual products that people can buy at a reasonable price. We have a plan for that and the next big step is to kick off that process and get to the point where we can supply these at high volume and low cost.”
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Global offshore wind targets are still strong enough to triple global capacity by 2030, despite the US’s offshore wind stagnation under Trump. A new analysis from energy think tank Ember and the Global Offshore Wind Alliance (GOWA) shows that the rest of the world is charging forward, underscoring confidence in offshore wind as a cornerstone of future clean energy systems.
Based on the latest NHTSA report, Tesla’s ‘Robotaxis’ keep crashing in Austin, Texas, despite ‘safety monitors’ preventing an unknown number of crashes.
Under an NHTSA Standing General Order SGO, automakers are required to report crashes involving their autonomous driving (ADS) and advanced driver assistance systems (ADAS) within five days of being notified of them.
For years, Tesla was only reporting ADAS crashes, since, despite the names of its Autopilot and Full Self-Driving systems, they are only considered level 2 driver assistance systems.
Since the launch of the Robotaxi service in Austin, Texas, where Tesla moved the supervisor from the driver’s seat to the passenger seat, it has now reported its first few crashes under the ADS reporting.
In the first month of operation in July, Tesla reported three crashes with its ‘Robotaxi’ service in Austin.
This week, NHTSA has updated its crash report and revealed a 4th crash that happened in September:
| Report ID | Incident Date | Incident Time (24:00) | Make | Model | Model Year | Automation System Engaged? | Highest Injury Severity Alleged | Crash With | Roadway Type | Weather |
| 13781-11687 | SEP-2025 | 01:25 | TESLA | Model Y | 2026 | ADS | Property Damage. No Injured Reported | Other Fixed Object | Parking Lot | Partly Cloudy |
As we previously highlighted, when it comes to both ADS and ADAS crash reporting, Tesla abuses the redacting capacity and hides most information about its crashes, unlike most of its competitors.
Therefore, we don’t have much information about this new crash, but it reportedly occurred in a parking lot and involved a Tesla Robotaxi crashing into a “fixed object,” resulting in property damage.
What’s most interesting about this crash is that it comes as Tesla released the first bit of data about its Robotaxi program in Austin.
During its earnings call last week, Tesla confirmed that the Robotaxi fleet has traveled 250,000 miles since its launch in late June.
Therefore, Tesla Robotaxi currently crashes at a rate of about once every 62,500 miles. That’s with a safety monitor with a finger on a kill switch, ready to stop the vehicle at all times.
We have no data on how often Tesla’s safety monitors prevent crashes in its robotaxis.
For comparison, the NHTSA report lists 1,267 crashes involving Waymo vehicles. However, Waymo’s robotaxis have covered over 125 million fully driverless miles since inception. That’s a crash every 98,600 miles and without any onboard safety monitor.
Electrek’s Take
That’s the problem with comparing Tesla and Waymo.
At least we can now clearly see that Waymo’s incident rate is much lower than Tesla’s, but that’s with a safety monitor in Tesla robotaxis that prevents an untold number of crashes.
The actual difference could be 10x higher. We simply don’t know. Tesla has always refused to share any data regarding disengagement or intervention rates.
One thing is clear: Tesla is way behind Waymo in autonomous driving safety.
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The electric hot hatch is more than just a show car, Subaru says it offers capabilities only possible with a battery EV.
Subaru unveils new electric STI hot hatch
It’s been quiet on the STI front since Subaru dropped the gas-powered WRX STI in 2022. However, that may change very soon.
The WRX STI was axed due to stricter emissions regulations in Europe, leading many to believe it would be replaced with an electric version. Subaru even said it was looking into opportunities for a next-gen STI version, including an electrified model, but said it would not be built on the new WRX platform.
Now, we are getting our first look at the future of STI. Subaru unveiled two new STI vehicles at the Japan Mobility Show on Wednesday, one a battery-electric (BEV) model and the other a gas-powered model.
Subaru said the EV variant, dubbed the Performance-E STI concept, “represents the future of the Performance Scene, spearheading Subaru’s new generation.”
The electric hot hatch still features a design that “evokes the brand’s heritage,” but with a bit more flair. Unlike the gas version, the Performance-B STI, the EV debuts a new three-line LED headlight design and sportier silhouette.
According to Subaru, the electric STI is “not just a show car,” it can also be used as a daily driver. The aim was to create a performance car that “would inspire everyday life,” Subaru said, adding that “this packaging is only possible with a battery EV.”
The electric hot hatch is equipped with a cylindrical battery, which offers a lower center of gravity and opens up interior space.
Subaru said the setup results in a 15% lower center of gravity than on its previous vehicles. By optimizing downforce and air resistance, the company claims it will outperform the current Subaru Global Platform.
The electric hot hatch also features a new “next-generation suspension” that lowers the hood height by more than 5% while improving control and responsiveness.
Subaru didn’t reveal any other specifics, but said that it will incorporate “innovative technologies” to offer an intuitive, exhilarating driving experience.
Will we see the electric hot hatch actually come to life? Subaru didn’t confirm it was headed for production, but said it represents the future and spearheads a new generation. When and if we will see an electric Subaru STI remains up in the air for now.
Subaru isn’t the only one jumping into the electric hot hatch craze. Honda revealed the Super-ONE at the Japan Mobility Show today, a compact EV that’s packed with fun features.
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