Japanese manufacturer launches dual-fuel commercial rooftop heat pump
Japanese machinery maker Yanmar says its new commercial rooftop units (RTUs) include a standard model, a dual-fuel heat pump, and a dedicated outdoor air system (DOAS) with integrated energy efficiency ratios (IEER) up to 21.3.
Japanese utility invests in perovskite solar PV startup
J-Power announced an investment in US-based perovskite solar specialist Active Surfaces, along with plans to pilot product tests.
PV power generation forecast technique for solar plants with missing data
Scientists in China have developed a novel missingness-aware power forecasting method that leverages signal decomposition, multi-scale covariate interaction, and multi-domain collaborative transfer learning. The approach reportedly improves average forecasting accuracy by 15.3%.
Nissan presents mini electric vehicle with expandable solar roof
The Japanese car maker announced it will show a prototype extendable solar PV rooftop onboard a Nissan Sakura Kei at an upcoming mobility industry event in Japan.
The Hydrogen Stream: Woodside nears completion of Beaumont ammonia project
Woodside Energy says its Beaumont New Ammonia Project is nearly complete, while Australia and India have agreed to collaborate on green hydrogen tech, supply chains, and workforce development.
SoftBank fine-tunes PV-battery tech for high altitudes
Japan’s SoftBank Corp. has launched a four-year program backed by the New Energy and Industrial Technology Development Organization (NEDO) to advance high-density batteries and high-efficiency solar cells for high-altitude platform station aircraft.
Optimizing solar-plus-storage operation for markets with imbalance penalties
Scientists in Japan have used a deep reinforcement learning–based AI model to calculate discrepancies between the planned and actual electricity supply volumes in PV-battery systems operating in markets where grid imbalances are penalized. Through a series of simulations, they found that the proposed methodology can reduce imbalance penalties by approximately 47%.
Improving sodium-ion battery stability with calcium
Researchers in Japan have adopted a new calcium-doping strategy to improve the stability and electrochemical properties of NFM, a cathode material used in sodium-ion batteries. The new technique enhances crystallinity and increases the interlayer spacing in NFM, resulting in higher performance compared to NFM treated with conventional processes.
Panasonic supplies hydrogen fuel cell and solar system to Osaka Metro
Panasonic has provided transit operator Osaka Metro with a combined hydrogen fuel cell and solar power system, underscoring the Japanese conglomerate’s growing focus on industrial hydrogen applications.
Shadow-aware route planning for vehicle-integrated photovoltaics
Japanese researchers have proposed a method for future vehicle-integrated photovoltaic route planning. It integrates environmental shading effects based on satellite and geographic information system data.
