World

US scientists recently put different bifacial solar cells and modules through a series of tests at elevated temperature, humidity, voltage and mechanical stress levels. The tests revealed a range of light-induced and potential-induced degradation mechanisms that modules will likely suffer in the field.

A new study of the environmental impacts of renewable energy finds significant opportunities for solar to reduce its impacts in various categories, including human health, resource depletion, and environmental damage. The study notes in particular that more work is needed to establish a comprehensive reuse and recycling network for end-of-life PV products.

A US research team claims to have demonstrated that increasing the spacing of solar panels between rows improves PV system efficiency and economics by allowing airflow to cool down the modules. The method could improve a project’s LCOE by as much as 2.15% in certain climates.

Operating gas-fired power plants would be 10 times more expensive in the long-term than building new solar capacity in Europe, according to research from intelligence company Rystad. Their study uses the levelized cost of energy (LCOE) for gas and coal-fired power generation at different price levels and compares it to the LCOE of solar PV and wind.

The International Energy Agency (IEA) has published its “World Energy Outlook 2022” report. It expects the energy crisis triggered by Russia’s invasion of Ukraine to accelerate the global energy transition.

Cobalt is key for boosting energy density and battery life, but it comes with caveats: expensive, scarce, and linked to unethical mining practices, wild price fluctuations, and a tenuous supply chain. In recent years, battery manufacturers and automakers have intensified efforts to reduce or eliminate cobalt in lithium-ion cathodes. But sometimes, old habits die hard, as pv magazine’s Marija Maisch explains.

Italian startup Tialpi is developing a process to recycle end-of-life solar panels that promises to recover 100% of a PV module’s weight. The new plant design is currently being tested at the company’s facility in the Italian northern province of Biella.

US-based Nanotech Energy’s graphene battery uses proprietary electrodes with a thermally stable separator, and non-flammable electrolyte that is said to be inexpensive to manufacture. The technology is said to be superior in terms of safety and competitive in terms of cell performance.

Germany’s Paxos is currently testing the solar tile in a testing facility connected to an air heat pump. The panel can provide heat and electricity at the same time, while also improving the heat pump’s coefficient of performance by around 25%.

The consulting firm expects prices to decline gradually through the first semester of 2023, followed by an accelerated decline in the second half of the year, with prices falling from the current CNY 300 ($36.64)/kg to below CNY 150/kg by the end of 2023. Polysilicon production capacity may increase from 500 GW in 2022 to 975 GW next year.