Technology and R&D

Yotta has a potential solution for solar-plus-storage in the urban environment. Will the micro-storage startup become the next SolarEdge or Enphase? Or the next JLM energy? And whatever happened to SolPad?

Module efficiencies will continue to increase, while the price of an individual module will stay the same. Not only will this hardware produce more power, it’ll work far longer — with predictions of 30-year module warranties, roughly the projected lifetime of gas assets.

An international group of scientists has developed a method to track the microscopic processes at work in lithium batteries. Employing a ‘virtual unrolling’ model developed for ancient manuscripts too sensitive to be opened, the group peeked inside the layers of a commercial battery to gain a better understanding of the processes at work and the degradation mechanisms affecting them.

Researchers from Switzerland’s École Polytechnique Fédérale de Lausanne have used molybdenum oxide as the hole-selective contact in a heterojuction silicon cell. The scientists claim the compound can compete with traditional contacts despite a lower level of optimization.

Presidential budget requests rarely make it through congress. Nevertheless, this budget reveals the administration’s radical goals. Bad news for ARPA-E , EPA and Energy-Star.

MIT scientists have developed a solar desalinator which sends heat from the sun through a ten-stage process of evaporation and condensation. The group estimates that a $100 device incorporating their innovation could provide the daily drinking water needs of a family.

Solar module manufacturers should begin testing new technologies in higher-value niche markets, say scientists at the U.S. institution. For example, bringing perovskite technology directly to the mainstream market remains prohibitive in terms of initial investment but segments such as building-integrated PV or microelectronics may offer better routes to commercial maturity.

Scientists at Sandia National Laboratories are working to quantify the effects of abundant snowfall on a PV system and identify cost-effective strategies to mitigate energy losses and reliability issues caused by the presence of snow and ice.

The efficiency of the cell, made with a standard M2 wafer, was raised 0.7% by using an improved busbar-free screen printing metallization based on heterojunction processes developed with manufacturing equipment provided by Swiss specialist Meyer Burger.

“Hanergy…is not above the rule of law, and this is not China. In abruptly closing the Alta plant, defendants violated the federal and California WARN Acts, which require at least 60 days written notice of termination where a plant is shut down and/or mass layoffs occur.”