Energy & Green Tech news

Energy & Green Tech

Researchers develop high-energy-density aqueous battery based on halogen multi-electron transfer

Traditional non-aqueous lithium-ion batteries have a high energy density, but their safety is compromised due to the flammable organic electrolytes they utilize.

Engineering

How potatoes, corn and beans led to breakthrough in smart windows technology

Smart windows are an exciting technology, capable of blocking out or letting in more light as needed, potentially reducing energy costs of large buildings by making them more efficient. This technology has already hit the ...

Engineering

Researchers propose a new method for wind turbine blade recycling

While wind energy is becoming one of the fastest-growing energy sources in the world, wind turbine blade waste emerges as a critical issue. Addressing this urgent environmental concern, Lithuanian researchers have developed ...

Engineering

Energy-smart bricks keep waste out of landfill

Engineers have invented energy-efficient bricks with scrap materials, including glass, that are normally destined for landfill.

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

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 ...

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. ...

Electronics & Semiconductors

New understanding of energy losses in emerging light source

The light-emitting electrochemical cell (LEC) can be fabricated in a sustainable and cost-effective way on both rigid and flexible surfaces making it suitable for a broad range of applications, like illumination, health care, ...

Energy & Green Tech

Sealing homes' leaky HVAC systems: A sneaky good climate solution

There's a hidden scourge making homes more harmful to the climate and less comfortable: leaky heating and cooling systems. Plugging those leaks may be the dull stepchild of the energy transition, but that doesn't make it ...

Energy & Green Tech

How ideology is darkening the future of renewables in Alberta

Those advocating for a green transition have, in recent years, had to contend with not just economic or political resistance, but ideological push back as well—specifically, from those adhering to the "ideology of fossil ...

Engineering

Cooler transformers could help electric grid

Most people do not give the U.S. electric grid a second thought—we flip a switch, and the lights come on. Behind the scenes are thousands of power plants and utilities linked by millions of miles of transmission lines. ...