Emiliano Bellini
All solar cell efficiencies at a glance – updated
The research group led by Professor Martin Green has published Version 65 of the solar cell efficiency tables. There are 17 new results reported in the new version.
Sunways unveils three-phase inverters for rooftop PV
Sunways’ new three-phase inverters have efficiency ratings of up to 98.6% and European efficiency ratings of 98.2%. They are available in five versions, with power outputs ranging from 15 kW to 30 kW.
Longi unveils heterojunction BC solar cells with 27.3% efficiency
The Chinese manufacturer said the device is based on dense passivating contacts that reduce parasitic light absorption and improve passivation. It used a streamlined manufacturing technique that is reportedly about one-third more effective than TOPCon mainstream technology.
GoodWe launches residential solar carport
GoodWe has developed a residential solar carport that features its Polaris building-integrated PV (BIPV) panels. The carport, which is available in 4.8 kW and 8.0 kW variants, is designed to host one or two vehicles, respectively.
Trina Solar claims 25.9% efficiency for large-area industrial TOPCon solar cells
The Chinese manufacturer said the result was confirmed by Germany’s Institute for Solar Energy Research in Hamelin.
JinkoSolar, Trina say TOPCon modules outperform p-type back-contact panels
JinkoSolar and Trina Solar have separately reported that on-field testing shows tunnel oxide passivated contact (TOPCon) solar modules outperform p-type back-contact PV modules in monthly power generation.
General Motors launches residential storage system
The United States-based automotive manufacturing company said its new storage system offers the option of integrating with PV systems. It can be scaled to reach a capacity of up to 35.4 kWh, which the company said would enable approximately 20 hours of storage.
Gstar introduces 440 W TOPCon solar module with framless design
The Singapore-based manufacturer said its new panel can achieve self-cleaning through rainwater thanks to its frameless design. The new product features an operating temperature coefficient of -0.30% per C and an efficiency ranging from 21.51% to 22.53%.
New research shows vulnerability of TOPCon solar cells to contact corrosion
Researchers at the University of New South Wales claim to have identified new TOPCon contact degradation mechanisms that are significantly influenced by the combination of ions and aluminum-silver paste compositions. The primary degradation mechanism was a significant increase in series resistance.
Panasonic testing smart thermostats in residential heat pumps
Panasonic will integrate new smart thermostats and an energy management software in its Aquarea system from November. The new solutions are also designed to enable PV system owners to manage their heat pumps based on local weather forecasts.
