Energy communities operating on hydrogen, batteries
Researchers in Spain have studied the impact of hydrogen production and storage technologies in risk management for energy communities with internal price-tariff systems. They found that the optimal involvement in futures markets and spot markets will depend on a community’s risk aversion and self-sufficiency.
The Hydrogen Stream: US scientists hit PV water-splitting efficiency of 20.8%
US researchers have developed new integrated halide perovskite photoelectrochemical cells, while Fortescue Future Industries has revealed plans to acquire a hydrogen project from Nikola in Arizona.
German research institute unveils 99.74% efficient power electronics for solid-fuel heat pumps
Germany’s Fraunhofer Institute for Applied Solid State Physics (IAF) has developed an ultra-efficient circuit topology for voltage converters with an electrical efficiency of 99.74%. The tech could considerably raise the coefficient of performance for electrocaloric heat pumps and the scientists are now considering components based on semiconductor gallium nitride (GaN) for higher power density and efficiency.
Tesla adds ‘Charge on Solar’ feature to Powerwall batteries
Tesla owners can select a feature in an app to set their Powerwall batteries to solely charge their vehicles on excess stored PV capacity.
Transnational grid across Sub-Sahara Africa may help spur renewables deployment
An international research group has proposed to build a Sub-Sahara Africa (SSA) central grid across 12 countries in order to reduce energy poverty. The proposed transmission line would touch Mali, Niger, Nigeria, Chad, Sudan, Ethiopia, Uganda, Kenya, Tanzania, Burundi, Mozambique, and South Africa.
Separator tech to prevent battery fires
Nuvola Technology says it has developed a direct deposition polymer separator technology that can eliminate the primary cause of lithium-ion battery fires.
GoodWe unveils new inverters for C&I applications
China-based GoodWe has developed two new solutions – the ETC 100 kW hybrid inverter and the BTC 100 kW retrofit battery inverter – for commercial and industrial (C&I) solar applications.
Australian startup unveils new wall-mounted residential EV chargers
Evos, an Australian startup specializing in electric-vehicle charging technology, has unveiled its first home chargers. The 7 kW wall-mounted devices are designed to add driving range to EVs for every hour they are plugged in.
MIT spinoff introduces new liquid metal battery system
Ambri has advanced its collaboration with Xcel Energy for a long-duration energy storage project.
PV is the most viable renewable energy technology for the Amazon Energy Transition
In the assessment of scenarios for a sustainable and resilient energy transition in isolated systems in the Amazon, a portion of photovoltaic generators should be installed centrally in order to guarantee a central system of high performance, availability and reliability without clearing any further forest areas, while another significant portion of the generators should be installed distributed over rooftops and in agrivoltaic projects.
