Uppsala University

While lithium ion battery prices are falling again, interest in sodium ion (Na-ion) energy storage has not waned. With a global ramp-up of cell manufacturing capacity under way, it remains unclear whether this promising technology can tip the scales on supply and demand.

Swedish researchers have analyzed the impact of electric aviation and electric vehicle (EV) charging on the power system at Visby Airport. They have discovered that on-site solar panels and battery storage could significantly reduce grid stress, and have proposed a novel approach to battery operation.

First Solar has agreed to pay $38 million to buy Swedish manufacturing startup Evolar AB, as it seeks to expand development of high-efficiency tandem PV tech.

The 18-meter long solar cell-clad trailer is said to enable fuel savings of 5-10% in Sweden. Swedish thin-film manufacturer Midsummer is a partner on the project.

A paper from Sweden has attempted to uncover why the conversion efficiency of solar cells based on cheap, abundant iron pyrites continues to languish below 3% despite the apparent optoelectronic promise of the material.

A group of scientists at Sweden’s Uppsala University have developed a proton battery based on abundant organic materials. They say the battery can be charged “in a matter of seconds” while operating at low temperatures, and can be cycled more than 500 times without significant capacity loss.

A study from Sweden seeks to consider how PV could be sympathetically installed on historic buildings. The researchers propose a target-based approach for assessing panel visibility.