Sunrise brief: Amazon hits 100% renewable energy goal
Also on the rise: Solar panel cleaning with electromagnetic waves, Anker launches all-in-one home storage solution, and more.
All-perovskite tandem solar cell based on tin-lead perovskite achieves 27.8% efficiency
Scientists in the United States have fabricated an all-perovskite tandem solar cell that reportedly shows reduced interfacial energy loss in the cell’s top device. It was built with a hole transport layer based on a compound known as P3CT that was doped with lead iodide.
Residential PV power forecasting method based uniquely on direct radiation
Researchers in Spain have created a novel PV forecasting method that uses only direct radiation as a parameter. They found it to be “comparable, if not superior” to four established forecasting techniques. The method could help homeowners with PV systems decide when to use electricity-intensive appliances and cleaning systems.
Sunrise brief: World’s first anode-free sodium solid-state battery
Also on the rise: Indiana’s largest solar power plant about to come online.
Organic solar cell gains counterintuitive efficiency boost from entropy
A research team at the University of Kansas found that organic semiconductors known as non-fullerene acceptors demonstrate a high solar cell efficiency due to a reversed heat flow.
Researchers build 16%-efficient mini perovskite solar module resistant to UV light-induced degradation
A U.S. research team has built a 15 cm2 perovskite solar module with improved stability and efficiency thanks to a polymer hole transport layer that reportedly improves the panel stability and efficiency.
World’s first anode-free sodium solid-state battery
Researchers at the Laboratory for Energy Storage and Conversion have created a new sodium battery architecture with stable cycling for several hundred cycles, which could serve as a future direction to enable low-cost, high-energy-density and fast-charging batteries.
In case you missed it: Five big solar stories in the news this week
pv magazine USA spotlights news of the past week including market trends, project updates, policy changes and more.
Time to talk solar curtailment
It’s time to assess curtailment, as rising amounts of excess generation are being wasted in several markets. This can be problematic for the solar industry but Toby Couture and David Jacobs, coordinators of think tank Global Solar PV Brain Trust, argue that curtailment is not always bad.
How to speed interconnection studies
Automation of interconnection study processes is already underway and has room to grow, said executives from Pearl Street Technologies and Nira Energy on an industry panel. Other panelists discussed developing the engineering workforce.
