Energy & Green Tech news

Engineering

Engineering approach can improve stability of perovskite solar cells under reverse bias conditions

Solar cells based on perovskites, a versatile class of materials with promising optoelectronic properties, are gradually making their way toward commercialization. While these solar cells can have notable advantages over ...

Energy & Green Tech

Researchers create all-perovskite tandem solar cell with record efficiency

A team of engineers at Huazhong University of Science and Technology in China has designed, built and independently tested an all-perovskite tandem solar cell with record efficiency. Their paper is published in the journal ...

Business

Q&A: China's interests in Africa are being shaped by the race for renewable energy

China-Africa relations have deepened over the past two decades, characterized by increased economic cooperation, investment and infrastructure development. China is now Africa's largest trading partner, with partnerships ...

Engineering

Aluminum foil that can clean water—researchers develop coating that attracts and traps dangerous microbes

More than 2 billion people around the world do not have access to safe, uncontaminated drinking water. Around 418 million of them live in African countries.

Energy & Green Tech

Pilot plant demonstrates iron-based hydrogen storage feasibility

Photovoltaics are set to meet over 40% of Switzerland's electricity needs by 2050. But solar power isn't always available when it's needed: there's too much of it in summer and too little in winter, when the sun shines less ...

Energy & Green Tech

Switzerland reopens door for new nuclear power plants

Switzerland said Wednesday it was open to building new nuclear power stations in the long term, given new geopolitical uncertainties, climate targets and population growth boosting the demand for electricity.

Energy & Green Tech

An ultralow-concentration electrolyte for lithium-ion batteries

Lithium salts make batteries powerful but expensive. An ultralow-concentration electrolyte based on the lithium salt LiDFOB may be a more economical and more sustainable alternative. Cells using these electrolytes and conventional ...

Energy & Green Tech

Ion thermoelectric conversion devices for near room temperature

The electrode sheet of a thermoelectric device consists of ionic hydrogel, which is sandwiched between the electrodes to form, and the Prussian blue on the electrode undergoes a redox reaction to improve the energy density ...

Energy & Green Tech

Denmark launches its biggest offshore wind farm tender

The Danish Energy Agency on Monday launched its biggest tender for the construction of offshore wind farms, aimed at producing six gigawatts by 2030—more than double Denmark's current capacity.

Engineering

Greater access to clean water, thanks to a better membrane

Water scarcity around the world is a bigger problem than ever, and desalination is critical to solving it. The best available technologies for separating salt from seawater, though, are costly and require a great deal of ...

Engineering

Houses made of waste changing lives in South America

Homes made of discarded plastic bottles, construction waste and old tires are being built across Latin America as new technologies help turn municipal waste into sustainable bricks and tiles.

Electronics & Semiconductors

Harvesting vibrational energy from 'colored noise'

The energy demands of today's ubiquitous small electronic devices—including sensors, data transmitters, medical implants and 'wearable' consumer products such as Fitbits—can no longer be met by chemical batteries alone. ...

Engineering

Floating solar's potential to support sustainable development

A study, published in Nature Energy, is among the first to explore the floating photovoltaics (FPV) at the continental scale, finding that FPV installed at existing major reservoirs could produce 20–100% of the electricity ...