Johnson Controls-Hitachi Air Conditioning unveils residential dual fuel heat pump system
Johnson Controls-Hitachi Air Conditioning has developed a residential dual fuel heat pump system that combines an air source heat pump and a gas furnace. The manufacturer says the furnace is designed to ensure there is no compromise in heating performance, even when temperatures are extremely low.
Sage demonstrates long-duration storage with underground reservoirs
US-based Sage Geosystems has presented field results showing that its Earthstore underground storage system can provide 18 hours or more of storage capacity, in addition to short-duration power. The solution is said to be cost-competitive with lithium-ion batteries and natural gas peaker plants.
Stryten Energy vanadium redox flow battery on path to commercialization
Stryten Energy is planning to begin commercializing its vanadium redox flow batteries in January 2025. Meanwhile it has deployed a 20 kW/120 kWh pilot-sized version of the storage system at a facility operated by Snapping Shoals EMC, an electricity cooperative in Georgia, United States.
Tesla launches Powerwall 3 battery
Tesla has launched the Powerwall 3 battery with an energy capacity of 13.5 kWh and continuous on-grid power of 11.5 kW, featuring dimensions of 110 cm x 61 cm x 19.3 cm and a weight of 130 kg.
Chinese PV Industry Brief: Trina reveals new US factory plans
Trina Solar has revealed plans to build a new factory in Wilmer, Texas. It will source polysilicon from unspecified locations in Europe and the United States.
Impact of overcapacity on solar stocks
BloombergNEF Senior Analyst Jenny Chase and Aurora Energy Research Renewables Lead Rebecca McManus speak with pv magazine about financial market trends for solar companies and the role of overcapacity as a driver of turbulence in the industry.
Ampt introduces 70 kW output solar string optimizer
The i50 optimizer supports the largest utility-scale solar projects.
High-energy, membrane-free organic redox flow battery
US researchers have developed a new high-voltage, membrane-free, nonaqueous lithium-based organic redox flow battery. They say that the elimination of the membrane decreases the upfront costs of the battery by as much as 30%.
Accelerated testing procedures for perovskite solar cells
Scientists in the US developed a series of accelerated testing procedures designed to predict how perovskite solar cells will perform when installed outdoors for a long period of time. The study finds that combined, simultaneous exposure to light and heat gives the most accurate of how a perovskite solar cell will perform in the field.
Silfab Solar signs deal with NorSun for US-made wafers
NorSun recently raised $8.5 million of new equity to further develop clean energy manufacturing projects in the United States, including a 5 GW ingot and wafer factory.
