Energy & Green Tech news

Engineering

Form fit: Device wraps around hot surfaces, turns wasted heat to electricity

The energy systems that power our lives also produce wasted heat—like heat that radiates off hot water pipes in buildings and exhaust pipes on vehicles. A new flexible thermoelectric generator can wrap around pipes and ...

Jan 21, 2022

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Energy & Green Tech

Calculating the coming aluminum demand for solar panels and how to mitigate its greenhouse impact

A team of researchers at the University of New South Wales has found that due to increased demands for solar panels in the coming years there will be a corresponding increase in the need for aluminum to support them. In their ...

Jan 21, 2022

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Research team sets new efficiency record for solar cell technology

A team of researchers from the National University of Singapore (NUS) has set a new record in the power conversion efficiency of solar cells made using perovskite and organic materials. This technological breakthrough paves ...

Jan 21, 2022

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Fabrication of perovskite solar cells with just a piece of paper? A new method tells you how

Perovskite semiconductor solar cells are a very exciting photovoltaic technology possessing similar efficiencies to silicon but cast or printed in thin films via liquid inks. A new method that uses a simple sheet of paper ...

Jan 21, 2022

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EU nations quarrel over whether nuclear, gas are 'green'

Hours before the window for lodging objections closes, EU environment and energy ministers meeting in France Friday differed sharply on a European Commission provision that would classify nuclear and natural gas energy as ...

Jan 21, 2022

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Energy & Green Tech

The value of wind energy

Two teams of researchers from Pacific Northwest National Laboratory (PNNL) have shown that wind energy offers logistical, economic, and environmental value to consumers and utilities from the coast of Oregon to remote villages ...

Jan 21, 2022

Energy & Green Tech

Quantum dots boost perovskite solar cell efficiency and scalability

Perovskites are hybrid compounds made from metal halides and organic constituents. They show great potential in a range of applications, e.g. LED lights, lasers, and photodetectors, but their major contribution is in solar ...

Jan 20, 2022

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Team develops lithium-air battery with an energy density higher than current lithium ion batteries

NIMS and Softbank Corp. have developed a lithium-air battery with an energy density over 500Wh/kg—significantly higher than that of current lithium ion batteries. The research team then confirmed that this battery can be ...

Jan 20, 2022

Scientists build bioreactors and engineer bacteria to advance biofuel research

Researchers from the University of Kent's School of Biosciences have designed and built equipment that can be used to investigate bacterial biofuel production at a fraction of the cost of commercial systems. This technology ...

Jan 20, 2022

Demand for rare minerals and metals creates eco-dilemma

According to the International Energy Agency (IEA), the demand for so-called critical raw materials (CRMs) will increase sevenfold by 2050. The reason for this is that our green, renewable energy technologies require far ...

Jan 20, 2022

Operating truck fleets with lowest possible emissions

Converting truck fleets to renewable energy is a goal of many fleet operators worldwide. This has also been recognized by HERE, a global navigation software company; the company is a joint subsidiary of German automakers ...

Jan 20, 2022

Radical overhaul of construction industry needed if UK to have any chance of net zero by 2050

As I entered the construction site in England a decade ago, I was filled with excitement. This was a new state of the art housing development. I was there to provide independent evidence as to whether the development stood ...

Jan 20, 2022

New fuel cells that can operate at temperatures between -20 to 200°C

Proton exchange membrane fuel cells (PEMFCs) are power cells that can transform the chemical energy produced during the electrochemical reaction between hydrogen and oxygen into electrical energy. While these cells could ...

Jan 19, 2022 feature

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Integrated modeling of climate impacts on electricity demand and cost

Around the world, energy systems are increasingly impacted by the effects of a changing climate. Energy systems, especially the electric-power system, are vulnerable to natural stressors such as wildfires, severe storms, ...

Jan 19, 2022

'Game changer' e-moped batteries spread from Taiwan across Asia

Every day, Aiden Lee joins the hundreds of thousands of people getting around Taipei on two wheels.

Jan 19, 2022

GM expands market for hydrogen fuel cells beyond vehicles

General Motors is finding new markets for its hydrogen fuel cell systems, announcing that it will work with another company to build mobile electricity generators, electric vehicle charging stations and power generators for ...

Jan 19, 2022

The case for a global energy grid based on 100% renewable energy

Researchers at the Birmingham Energy Institute are working with the C-EPRI Electric Power Engineering Ltd (C-EPRI), to build an industrial-scale prototype of a next-generation HVDC technology that could pave the way for a ...

Jan 19, 2022