Researchers in Canada have proposed using gravity-based energy storage in high-rise buildings, in combination with photovoltaic facades, small wind turbines, and lithium-ion batteries. Their modeling ...

A disused coal mine in Wollongong will be the first test site for a renewable energy company that lowers weights down old ...

In a controversial experiment, a team of physicists investigated whether we could harness the Earth's rotational energy to generate electricity. It's a deceptively simple idea that researchers have ...

Water droplets falling through a tube have generated enough electricity to power 12 LED lights. Such an approach could one day be used in roof-based systems to harvest lots of clean power from rain.

How to save renewable energy and give it to consumers during peak hours? Scientists are working on various options. We have already discussed one of them – sand batteries. The alternative is gravity ...