Energy & Green Tech news

Energy & Green Tech

Heat wave swells Asia's appetite for air-conditioning

A record-breaking heat wave is broiling parts of Asia, helping drive surging demand for cooling options, including air-conditioning.

Energy & Green Tech

Cost-effective, high-capacity and cyclable lithium-ion battery cathodes

Charge-recharge cycling of lithium-super-rich iron oxide, a cost-effective and high-capacity cathode for new-generation lithium-ion batteries, can be greatly improved by doping with readily available mineral elements.

Energy & Green Tech

Electricity from farm waste: How biogas could help Malawians with no power

In sub-Saharan Africa, over 600 million people (more than 50% of the population) are without access to electricity. Malawi has one of the world's lowest electricity access rates—just 14.1% of the total population have access ...

Engineering

Researchers find use of olivine in cement production could result in carbon negative concrete

A small team of materials scientists and environmental engineers at Imperial College London has found that using olivine in cement could result in carbon-negative concrete. In their study, published in the journal Royal Society ...

Energy & Green Tech

Microsoft makes renewable energy deal with Canada's Brookfield

Microsoft and Canada's Brookfield Asset Management have struck an agreement for the development of renewable energy that could make one of the biggest corporate purchases of green energy to date, the companies said on Tuesday.

Energy & Green Tech

A new roadmap to close the carbon cycle

A major approach to achieving net-zero carbon emissions relies on converting various parts of the economy, such as personal vehicles and heating, to run via electricity generated from renewable sources. But carbon cannot ...

Energy & Green Tech

Is bioenergy ever truly green? It depends on five key questions

Plans to revive an old coal-fired power station using bioenergy are being considered in the Hunter region of New South Wales. Similar plans for the station have previously not gone ahead. As we grapple with decarbonization, ...

Electronics & Semiconductors

New circuit boards can be repeatedly recycled

A recent United Nations report found that the world generated 137 billion pounds of electronic waste in 2022, an 82% increase from 2010. Yet less than a quarter of 2022's e-waste was recycled. While many things impede a sustainable ...

Energy & Green Tech

Researchers outline path forward for tandem solar cells

As the old saying goes, two heads are better than one. The same is true when it comes to solar cells working in tandem. Researchers at the U.S. Department of Energy's National Renewable Energy Laboratory (NREL) have prepared ...

Electronics & Semiconductors

Researchers increase storage, efficiency and durability of capacitors

Pacemakers, defibrillators, radar technology and electric vehicles all need electrical components called capacitors that can store and release a lot of energy in a matter of a few microseconds. Researchers at the University ...

Business

EPA says its new strict power plant rules will pass legal tests

The EPA on Thursday announced a series of actions to address pollution from fossil fuel power generators, including a final rule for existing coal-fired and new natural gas-fired plants that will eventually require them to ...

Energy & Green Tech

New insights lead to better next-gen solar cells

For Michael Saliba and Mahdi Malekshahi, it was one of those moments in science when good experimental results raised more questions. The University of Stuttgart researchers recently developed a new process to make solar ...

Energy & Green Tech

Storing and utilizing energy with innovative sulfur-based cathodes

Electric vehicles and portable electronic devices such as laptops and mobile phones are unthinkable without lithium-ion batteries. The problem is highly toxic materials such as cobalt are often used for the cathodes of these ...