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 ...

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 ...

Energy & Green Tech

Sports boats set out on a voyage to electrify the waters in the same way Tesla electrified the roads

Grant Jeide looked like another dude riding the rollicking waves left in the wake of a 23-foot (7-meter) boat ripping through the water at speeds of up to 40 miles per hour on a river in Northern California's Delta earlier ...

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

A second life for discarded lithium-ion cells

In 2030, around 1.2 million lithium-ion batteries of electric cars, buses and construction machinery will be decommissioned worldwide because they will reach the end of their planned service life, their warranty will expire ...

Energy & Green Tech

Strengthening Swiss hydropower with science

Researchers at ETH Zurich led by Robert Boes are developing specific solutions to optimize electricity production from Swiss hydropower plants. This will ensure that hydropower remains the backbone of Switzerland's electricity ...

Energy & Green Tech

Tidal energy is coming to Alaska. But how much?

Much of Alaska is empty—of humans, at least. Vast tundra and forest separate cities and villages, dividing the state into more than 150 isolated power grids. The largest of these grids, known as the Railbelt, carries 70% ...

Robotics

Leveraging robots to help make wind turbine blades

Researchers at the U.S. Department of Energy's National Renewable Energy Laboratory (NREL) have successfully leveraged robotic assistance in the manufacture of wind turbine blades, allowing for the elimination of difficult ...

Engineering

How green cities could remove CO₂ from the atmosphere

More than a thousand cities around the world now have "net zero" pledges: they want to emit only as much CO2 into the atmosphere as they can simultaneously recapture. An elaborate meta-study has now summarized the state of ...

Engineering

Light, flexible, efficient: Perovskite-based tandem solar cells

Roof tiles are becoming a thing of the past: Today, more and more Swiss roofs boast large black and blue rectangles that convert sunlight into electricity. The blueish color comes from silicon crystals, as the majority of ...