World

Salgenx has developed a way to produce graphene on demand from its saltwater flow battery. The tech exploits the electrochemical properties of the battery’s cathode to exfoliate graphite into individual layers of graphene. The company says it can produce graphene for less than USD 1.25 ($1.85) per gram, providing storage businesses with an additional revenue stream.

Cannabis prohibition drove a culture of clandestine production in the past and solar helped growers to cultivate it at remote, off-grid sites. Now, as a global commercial cannabis market emerges, solar has an even bigger role to play, reports Blake Matich.

TrendForce has ranked the top six module manufacturers by shipment volume in 2022, with Longi topping the list, followed by Trina Solar and JinkoSolar. JA Solar, Canadian Solar, and Risen Energy rounded out the top six, in a year dominated by large-format modules.

Tesla has revealed plans to build a new Megapack battery factory in Shanghai, according to the Xinhua news agency.

Sarcos has designed a robotic PV construction solution that delivers, detects, lifts, and places PV modules in large-scale solar plants. It has recently field tested and validated the prototype solution in a pilot project funded by the US Department of Energy.

Scientists in Italy have looked at how flywheel storage and reversible solid oxide cells could be integrated with lithium-ion batteries in minigrids powered by solar. They found that flywheels combined with batteries could be the cheapest option for power smoothing.

Stanford University researchers have created a model to assess how much compressed air storage capacity might be needed for the deep decarbonisation of power systems, while compensating for the variability of wind and solar-based power systems. They applied the model to California’s energy system and found that compressed air could be very competitive on a dollars-per-kilowatt-hour basis.

Community opposition to renewable projects tends to be dismissed as NIMBY-ism, an attitude of not-in-my-back-yard. To do so fails to recognise the character and potential claws of the globally growing movement, as well as the renewable sectors’ own role in rearing resentments. Australian reporter Bella Peacock investigates the emotional thread that ties the particularities of opposition movements together, and ways developers can defuse the charge.

Before beginning BESS design, it’s important to understand auxiliary power design, site layout, cable sizing, grounding system and site communications design.

Norwegian consultancy Rystad Energy says that hydrogen pipelines will be “far better” than vessels at moving hydrogen over short- and medium-range distances in the years ahead.