Ali Hajimiri has spent a decade researching how to put solar panels in space and beam the energy down to Earth. This year, the Caltech electrical engineering professor and his team took a step toward making space-based solar a reality.
They launched Maple, a 30-centimeter-long space solar prototype equipped with flexible, lightweight transmitters. The aim was to harvest energy from the sun and transfer it wirelessly in space, which they did, managing to light up a pair of LEDs. The amount of energy they detected was too small to be useful, but they had succeeded in wirelessly beaming down power from space.
At its heart, space-based solar is a fairly straightforward concept. Humans could harness the enormous power of the sun in space, where it's available constantly — unaffected by bad weather, cloud cover, nighttime or the seasons — and beam it to Earth. Read more about it at the link in our bio.
📸: Space Solar
The UK’s acceleration toward *sustainable construction* underscores a decisive shift from ambition to delivery. National Grid ESO’s reforms to the grid connection process remove zombie projects and prioritise actionable, low carbon design ready to unlock billions in clean energy infrastructure. This structural change supports *green infrastructure* essential to *decarbonising the built environment*, linking energy planning with *sustainable building practices* that address both whole life carbon and embodied carbon impacts through rigorous whole life carbon assessment.
Offshore wind’s expansion, now generating nearly one-fifth of Britain’s electricity, highlights how *environmental sustainability in construction* relies on scalable, *eco-friendly construction* solutions. The developing offshore supply chain demands *sustainable building design* that integrates *circular economy in construction* strategies and *resource efficiency in construction*, enabling the transition towards *net zero carbon buildings* and *net zero whole life carbon* performance.
While material innovation remains subdued, the rise of energy-efficiency retrofits reflects a shift towards life cycle cost optimisation and *building lifecycle performance* over short-term gain. Firms such as Mapei point to recovery driven by energy-efficient buildings and *low embodied carbon materials*, reinforcing the value of *eco-design for buildings* and *sustainable material specification* guided by *environmental product declarations (EPDs)*. These principles strengthen the circular economy ethos and advance *carbon footprint reduction* across every project stage, from design to *end-of-life reuse in construction*.
Africa’s emerging solar market signals global diversification of *green construction*, with the continent expected to become a testbed for *low carbon building* strategies suited to extreme climates. The transition invites adoption of *circular construction strategies*, *renewable building materials*, and *sustainable urban development* underpinned by *life cycle thinking in construction*.
The alignment of policy reform, financial investment, and technical capability confirms that *sustainable design* has become core to delivering *carbon neutral construction* and reducing the *carbon footprint of construction* worldwide. The era of incremental action is ending—the new metric of success is measurable whole life carbon performance and resilient, *green building materials* innovation delivering true *sustainability* in the built environment.
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