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Many rooftops are perfect for solar but owners and renters can’t afford it—here’s our answer

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Many rooftops are perfect for solar but owners and renters can’t afford it—here’s our answer


Credit: Unsplash/CC0 Public Domain

Australians love rooftop solar power. About 4 million homes have solar panels on their roofs, and we generate more solar energy per person than any other country.

But affordability pressures on homeowners are holding them back from installing rooftop solar on millions of homes. Without this, Australia could struggle to meet its goal of generating more than 80% of electricity from renewables by 2030.

We propose a bold new “use it or lend it” solar program, under which the owners of detached and semi-detached homes would have the option of allowing the government to install and operate on their rooftops.

This could be an effective alternative to traditional energy rebates to accelerate the energy transition. And the electricity generated from these systems could be allocated to and renters, who are currently unable to access .

Boosting solar

Slightly more than half of owner-occupied houses in Australia have solar panels.

Our new research looked at the factors that influenced household solar panel uptake in the Sydney metropolitan area from 2013 to 2024.

We found that as the cost of panels and batteries dropped over time and soared, more homeowners decided to install solar. In contrast, the feed-in tariffs—the payment from electricity retailers for surplus electricity you put back into the grid—seem to have little impact on solar adoption.

Perhaps unsurprisingly, we found that high house prices relative to household incomes resulted in reduced solar adoption, showing housing affordability is a barrier for solar uptake. Despite the long-term savings offered by solar, homeowners battling housing affordability simply didn’t have as much disposable income to spend on solar panels.

At present, a typical 6.6 kilowatt system costs about $8,500, but the owner only pays about $6,200 because of the Commonwealth Small-Scale Renewable Energy Scheme rebate. These rebates are being phased out by 2030.

Untapped potential

Australia has a legislated greenhouse emissions target of 43% below 2005 levels by 2030 and net zero by 2050. Last month, it announced a more ambitious interim target of 62%–70% below 2005 levels by 2035.

To meet this goal, we will need to generate more than 80% of Australia’s electricity from renewables by 2030. We are not yet on track.

To overcome the shortfall on solar adoption, bold policies are needed to make rooftop solar accessible to all households, not just those who can already afford it.

What has been proposed so far? The Climate Council advocates for the mandatory inclusion of solar on new and substantially renovated houses, as well as suitable new apartment buildings. The Grattan Institute says state and territory governments should provide certainty with a long-term date for the end of gas.

But these approaches take time. We propose a third and complementary “use it or lend it” option. Under this scheme, owners of detached and semi-detached houses that have not installed solar could “lend” their rooftop space to the government for publicly owned solar panels.

How ‘use it or lend it’ would work

Owners who chose this option would retain full ownership of their property while receiving compensation, such as annual lease payments, for allowing public use of their rooftop space.

This arrangement would give property owners the clear, risk-free benefit of financial compensation without the cost of installation or responsibility for maintenance of the panels themselves. We expect the program would appeal to low-income homeowners who cannot afford solar panels, as well as rental property owners who may be reluctant or unable to invest in solar.

For the government, the electricity from these systems could be allocated to low-income households and renters, two groups that face the greatest barriers to direct solar participation. This could be done through [virtual energy networks], a digital platform that allows solar households to sell excess electricity to non-solar households. The “use it or lend it” policy could be an effective tool to address equity concerns in solar uptake.

Property owners could choose to buy back the rooftop solar panel system installed by the government at any time. If existing owners initially opt out but later wish to opt back in, or if new property owners decide to participate, the purchase price would be determined based on the “cost neutrality” principle, meaning the government does not profit.

To ensure feasibility and fairness, the program would have to include safeguards covering roof integrity and owner indemnity against potential damage or injury. It would need fair access principles for the installation, service and removal of the solar panels and batteries.

Each property’s solar suitability would be assessed by accredited professionals, considering technical viability as well as the property owner’s priorities, for example, planned subdivisions or renovations.

With only five years until the current solar rebates are phased out, now is the time to consider how to boost solar installation without them.

With careful design and drafting, a landowner lending their roof space to the government does not disadvantage them. Owners, renters, the government and the climate would all benefit from solar panels on unused roofs.

Provided by
The Conversation


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Blackbox replaces two racks of HPE storage with 8U of Everpure | Computer Weekly

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Blackbox replaces two racks of HPE storage with 8U of Everpure | Computer Weekly


Service provider Blackbox Hosting has consolidated storage from two full racks down to just 8U of rack space following migration to Everpure FlashArray hardware. The move has allowed the provider to deliver “sovereign” cloud services with a 10:1 data reduction ratio and an 85% reduction in power utilisation.

Blackbox Hosting evolved over 14 years from a single rack to supporting more than 1,500 virtual machines (VMs), and has datacentre capacity at Canary Wharf with a secondary site in Slough.

The company operates a fully managed, sovereign (see box) model for major software suppliers including Iris Software Group, which supports payroll and financial management for approximately 60% of UK academies.

Blackbox previously relied on HPE 3PAR 8400 all-flash arrays. However, as the hardware approached end-of-life, the company faced mounting challenges. 

“Support renewal costs were significant, and we had issues with HPE support,” said Matthew Burden, CEO at Blackbox Hosting. “We had a power supply failure in a DR site, and despite a four-hour SLA [service-level agreement], it took nearly two weeks to replace. They also began charging for firmware updates that were previously included.”

The 3PAR environment was cumbersome, said Burden, and required two full racks of hardware to manage the company’s near-petabyte scale.

When it looked for a more performant and dense alternative, Blackbox turned to Pure Storage, which recently rebranded as Everpure.

High density; ‘one-second’ RPO

Blackbox has deployed a range of Pure Storage FlashArray models across its two datacentres to support its active-passive high-availability design.

The deployment includes two FlashArray//X50 R3s, two X50 R4s, and two FlashArray//C20 units for file clusters.

The hardware supports predominantly Hyper-V and VMware VMs, running 90% Windows-based workloads, primarily SQL Server, plus Linux servers.

The transition from 3PAR to Pure has seen a dramatic consolidation of physical space. “We went from two entire racks filled with disks to two 4U boxes,” said Burden. “Our total provisioned storage is 998TB and we get a total reduction of 10:1. 3PAR had deduplication, but not compression on SSDs.”

Beyond space savings, the disaster recovery (DR) capabilities have seen a massive upgrade. Previously, the company’s recovery point objective (RPO) was limited to 15 minutes. “With Pure Storage, it is one second,” said Durden. “We replicate all 1,500 VMs to our backup datacentre. For a customer with 1,000 VMs, we can spin those up for quarterly testing and they are only one second out from live data.”

Performance and sustainability

The shift to non-volatile memory express-based flash has also provided a significant boost to the provider’s green credentials. Sustainability reports generated via Pure’s Evergreen dashboard show an 85% saving in power utilisation compared with the legacy HPE environment.

For the end users – which include major corporate energy, finance and transport organisations – the benefit is felt in application speed. “We’ve had clients with huge databases that were always slow with previous providers,” said Justin Field, commercial director at Blackbox. “They can pull data significantly faster now, which is a big play for us when competing against hyperscalers.”

Burden also highlighted the “zero-touch” operational simplicity of the new arrays. “The older arrays were very cumbersome; you had to know exactly what you were doing,” he said. “The Pure web interface is very simple, which makes the operational side much easier. Plus, with Evergreen, we don’t have to pull arrays out for upgrades. We can just put in new controllers as scale increases.”



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Tackling the housing shortage with robotic microfactories

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Tackling the housing shortage with robotic microfactories



A national housing shortage is straining finances and communities across the United States. In Massachusetts, at least 222,000 homes will have to be built in the next 10 years to meet the population’s needs. At the same time, there are numerous challenges in traditional construction. There’s a shortage of skilled construction workers. Most projects involve multiple contractors and subcontractors, adding complexity and lag time. And the construction process, as well as the buildings themselves, can be a major source of emissions that contribute to climate change.

Reframe Systems, co-founded by Vikas Enti SM ’20, uses robotics, software, and high-performance materials to address these problems. Founded in 2022, the company deploys microfactories that bring housing fabrication and production closer to the regions where the homes are needed. The first homes designed and manufactured in Reframe’s first microfactory have been fully built in Arlington and Somerville, Massachusetts. 

Enti’s experiences in MIT System Design and Management (SDM) shaped the company from its start. “Learning how to navigate the system and finding the optimal value for each stakeholder has been a key part of the business strategy,” he says, “and that’s rooted in what I learned at SDM.”

Better tools for system-level problems

Enti applied to SDM’s master of science in engineering and management while he was working at Kiva Systems, overseeing its acquisition by Amazon and transformation into Amazon Robotics. He found that the SDM program’s fundamentals of systems engineering, system architecture, and project management provided him with the tools he needed to address system-level problems in his work.

While he was at MIT, Enti also served as an associate director for the MIT $100K Entrepreneurship Competition, which offers students and researchers mentorship, feedback, and potential funding for their startup ideas. He realized that “there isn’t a single formula for how businesses start, or how long it takes to get them started,” he says, which helped shape his plans to start his own business.

Enti took a leave of absence from MIT to oversee the expansion of Amazon Robotics in Europe. He returned and completed his degree in 2020, writing his thesis on developing technology that could mitigate falls for elderly people. This instinct to use his education for a good cause resurfaced when his daughters were born. He wanted his future business to address a real-world problem and have a social impact, while also reducing carbon emissions.

Growing housing, shrinking emissions

Enti concluded that housing, with immediate real-world impact and a significant share of global carbon emissions, was the right problem to work on. He reached out to his colleagues Aaron Small and Felipe Polido from Amazon Robotics to share his idea for advanced, low-cost factories that could be deployed quickly and close to where they were needed. The two joined him as co-founders.

Currently, the microfactory in Andover, Massachusetts, produces structural panels, with robotics completing wall and ceiling framing and people completing the rest of the work, including wiring and plumbing. Eventually, Reframe hopes to automate more of the building process through further use of robotics. The modular construction process allows for reduced waste and disruption on the eventual home site. And the finished homes are designed to be energy-efficient and ready for solar panel installation. The company is set to start work soon on a group of homes in Devens, Massachusetts.

In addition to the Andover location, Reframe is setting up in southern California to help rebuild homes that were destroyed in the area’s January 2025 wildfires. The company’s software-assisted design process and the adjustability of the microfactories allows them to meet local zoning and building codes and align with the local architectural aesthetic. This means that in Somerville, Reframe’s completed buildings look like modernized versions of the neighboring three-story buildings, known locally as “triple-deckers.” On the other side of the country, Reframe’s design offerings include Spanish-style and craftsman homes.

“Housing is a complex systems problem,” Enti says, explaining the impact SDM has had on his work at Reframe. The methods and tools taught in the integrated core class EM.412 (Foundations of System Design and Management) help him tackle systems-level problems and take the needs of multiple stakeholders into account. The Reframe team used technology roadmapping as they devised their overall business plan, inspired by the work of Olivier de Weck, associate head of the MIT Department of Aeronautics and Astronautics. And lectures on project management from Bryan Moser, SDM’s academic director, remain relevant. 

“Embracing the fact that this is a systems problem, and learning how to navigate the system and the stakeholders to make sure we’re finding the optimal value, has been a key part of the business strategy,” Enti says.

Reframe Systems is set to continue learning through iteration as they plan to expand their network of microfactories. The company remains committed to the core vision of sustainably meeting the country’s need for more housing. “I’m grateful we get to do this,” Enti says. “Once you strip away all the robotics, the advanced algorithms, and the factories, these are high-quality, healthy homes that families get to live in and grow.” 



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Framework Has a Better, More Take-Apart-Able Laptop

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Framework Has a Better, More Take-Apart-Able Laptop


Framework, the company that makes laptops designed for optimal repairability, announced a new version of its main product, a 13-inch screen laptop. It’s called the Framework Laptop 13 Pro, and it has far better battery life, a touchscreen, a haptic touchpad, and is fitted with Intel processors.

At an event in San Francisco today, Framework CEO Nirav Patel showed off the company’s new tech, opening with a joke about making Framework AI—something the company is very much not doing. Framework’s whole thing, after all, is aiming to give users control over the physical tech they use.

“That industry is fighting for you to own nothing, and they own everything,” Patel said about the AI industry. “We’re fighting for a future where you can own everything and be free.”

Framework used the event to detail other updates coming to its 16-inch laptop. It also showed off previews of an official developer kit and a wireless keyboard for controlling your rig from the couch.

Framework 13 Pro

The Framework Laptop 13 Pro.

Courtesy of Framework

As the name implies, the 13 Pro is a step up from the company’s last version, the Framework 13. It’s also pricier, starting at $1,199 for a DIY Edition that requires assembling the computer yourself. Pre-built units start at $1,499 but can be upgraded with more features. Framework says it will start shipping the 13 Pro in June.

Framework’s signature move for its products is the ability to take the thing apart. The 13 Pro is made with that ethos in mind, so its parts can be easily swapped out, upgraded, or replaced. Four Thunderbolt 4 interfaces let you pick which ports (USB-C, HDMI, etc.) you want and then choose where to place them. Framework says it planned the laptop with cross-generation compatibility in mind, so current Framebook 13 laptop owners will be able to use new 13 Pro parts like the mainboard, display, and battery, and put them into their existing machine.

The big changes in the guts of the 13 Pro come from Framework’s shift away from using an AMD processor to Intel’s Core Ultra Series 3 processors, which Framework described in its press release as “just insanely efficient.” That efficiency, along with a bigger battery, translates to more than 20 hours of battery life while streaming 4K Netflix videos, at least that’s the claim. That’s almost 12 hours longer than the Framework 13.

Image may contain Computer Electronics Laptop Pc Computer Hardware Hardware Monitor and Screen

Courtesy of Framework

Image may contain Computer Electronics Laptop Pc Computer Hardware Hardware Monitor and Screen

Courtesy of Framework



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