Controlling grid fluctuations via solar module cooling
A research group has proposed a novel method to control ramp rates in power networks. Its control optimization is based on weather, load and production forecast data. The scientists simulated the operation of the proposed technique and reached a ramp rate reduction of up to 76.2%.
Softbank, Longi develop 665 g/m2 heterojunction solar modules with 22.2% efficiency
Researchers from the two companies have built a lightweight and flexible silicon heterojunction (HJT) PV panel that measures 563 mm x 584 mm and weighs just 218.5 g.
Japan’s oldest PV system gets refurbished
Tokyo-based startup Girasol Energy and the enterprise bureau of Japan’s Yamanashi prefecture have repowered Japan’s oldest PV system, a 100 kW array built in 1993. The project aimed to partially replace the original 13.3% efficient solar modules, offering an alternative to dismantling and recycling the system’s components.
The Hydrogen Stream: 20 GW of electrolysis project reached final investment decision
The IEA published its yearly hydrogen analysis reporting that of the 520 GW announced electrolysis projects, 20 GW reached final investment decision, with China leading the way.
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.
EKO unveils new solar monitoring solution
The latest irradiance sensor solution from Japan-based EKO Instruments provides continuous measurements in the field. Well-suited for bifacial PV systems, it supports the measurement of global horizontal irradiance, diffuse horizontal irradiance and direct normal irradiance, even in reflective and cloudy conditions.
Sharp unveils 610 W TOPCon solar panel with 22.58% efficiency
Sharp’s new IEC61215- and IEC61730-certified solar panels have an operating temperature coefficient of -0.29% per C and a bifaciality factor of over 80%.
Storing surplus PV power with thermal storage electric boilers
Tokyo-based heavy industry manufacturer IHI Corporation has created a thermal utilization system that can convert surplus direct current power at solar plants into carbon-free steam. A test project that commenced in April has used all generated electricity and is operating stably, the company says.
Daiwa House unveils solar carport
Daiwa House, Japan’s largest homebuilder, has developed a new carport made from extruded aluminum profiles. It comes in two versions, accommodating either four or two vehicles.
The Hydrogen Stream: Equatic making anodes to produce H2 from seawater
Equatic says it has started annual production of 4,000 anodes for hydrogen generation from seawater in Singapore and Canada, while Nuvera Fuel Cells says it will demonstrate its first operational hydrogen-powered AC generator set and DC fast charger.
