Can you have hydro storage without water? A British start-up is looking to open up the potential of pumped hydro renewable energy storage.

Tidal power has massive potential, but also comes with massive costs and logistical issues. A new wave of tidal generator designs could solve these issues.

A new report supports the idea that underground mines can be transformed into energy storage facilities, adding the possibility of on-demand, carbon-free power to energy grids. Written by Sarah Derouin of AUG's Eos Magazine

Hydropower is one of humanity's oldest forms of energy, but there are still vast areas of the sector left unexplored.

So-called "blue energy" has previously been branded too expensive for practical use. However, a new process - with no moving parts - could see its start-up costs plummet.