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News
Boom Supersonic’s high pressure compressor turbine rotor
23+ hour, 54+ min ago (247+ words) Boom’s CEO recently posted a video of a rotor being balanced and said that if the centre of gravity of that disk is out by one millionth of an inch, it can destabilise the whole machine. This is the high…...
Engineers develop underwater solar cells designed for deep-sea monitoring
3+ day, 18+ min ago (402+ words) Researchers at Yunnan University and Southwest United Graduate School have demonstrated functional underwater solar cells operating at a depth of 10 meters (33 feet) in the South China Sea. The achievement smashes previous limits. Earlier attempts to harvest solar energy underwater stalled…...
How stacked solar panels work
3+ day, 21+ hour ago (182+ words) Interesting Engineering How stacked solar panels work Oxford PV shipped the first commercial stacked solar panels in September 2024, silicon cells coated with a few hundred nanometres of perovskite that harvests the blue light silicon wastes as heat. In a factory…...
New algorithm finds urban power sites despite 20%-30% fewer options
4+ day, 15+ hour ago (499+ words) A new ORNL algorithm helps utilities find urban sites for power projects by weighing grid needs alongside zoning and local priorities. Cities trying to add large power plants or battery storage facilities face a problem beyond grid capacity: finding a…...
US targets 34% of electricity with first grid-linked wave energy site
6+ day, 20+ hour ago (497+ words) The facility was officially opened on August 27, 2026. The US has officially launched its first pre-permitted, grid-connected wave energy test site that could reportedly unlock an estimated 1,400 terawatt-hours (TWh) of wave power each year. Oregon State University’s (OSU) PacWave South is…...
How these Vortex Bladeless makes electricity by shaking
1+ week, 5+ hour ago (257+ words) Spain’s Vortex Bladeless has spent over a decade on a wind generator with no blades at all. It just shakes. Here is the physics. Wind flowing past a cylinder does not stay attached. It peels off in alternating swirls, first…...
Untapped US dams could power 1.4 million homes with 15.2 TWh output
1+ week, 1+ day ago (415+ words) The researchers made the data and software publicly available for independent analysis. New research has concluded that retrofitting selected non-powered dams across the United States could produce up to 15.2 terawatt-hours of electricity per year. This output is capable of supplying…...
Molecular 'raincoat' helps tin solar cells reach 16.2% efficiency rate
1+ week, 3+ day ago (518+ words) Clean energy can finally afford to be fully clean. Scientists have created a tin-based perovskite material equipped with a built-in defense against air and moisture, functioning much like a molecular raincoat for solar cells. The advance is the result of…...
Dual-molecule method pushes perovskite solar cells to 24.6% efficiency
1+ week, 4+ day ago (397+ words) Inverted perovskite solar cells can reach an energy conversion efficiency of 24.6 percent when treated with a new chemical process. The performance marks a clear step up from standard versions of the device. The gains rely on a two-step method using…...
Physicists stabilize an unstable system without sensors
1+ week, 6+ day ago (101+ words) Interesting Engineering Almost every machine that needs to stay balanced relies on sensors, computations, and corrections thousands of times a second. Feedback control is so entrenched in modern engineering practices that stability and sensing have become nearly synonymous. Long before…...