Renewable Energy

A new offshore wind farm system that promises faster, cheaper installation and operations will be tested in the Mediterranean. Called the NextFloat+ Project, it received a €13.4-million (US$14.4-million) grant from the European Commission.

One of the world's largest engines becomes a clean generator. Originally designed to burn diesel, dual-fuel, or gasoline for tankers and container ships, the Wärtsilä 31 marine engine gets a new life generating clean, renewable electricity.

Since revealing an wind turbine wall concept back in 2021, Joe Doucet has been working on bringing the idea to life. That time is here with the launch of Airiva, a modular rotary wind turbine wall destined for installation on city infrastructure.

Water can hold a huge amount of thermal energy, and a new system to tap into this is being trialed in Scotland. A startup called SeaWarm uses heat stored in bodies of water for buildings, pulling four times more heat out than electricity used.

The designer of the world's tallest building, SOM, has joined forces with Energy Vault Holdings to investigate the possibility of creating huge skyscrapers that would function as gigantic gravity based energy storage systems.

A new heat-to-energy converter has reached a record efficiency of 44% – the average steam turbine manages about 35%, for comparison. This thermophotovoltaic cell is a major step on the way to sustainable, grid-scale renewable energy storage.

It's rarely great news when an area gets blanketed in volcanic ash – but University of Barcelona researchers have discovered it has a rare combination of useful properties, which make it remarkably useful as an energy storage medium.

Israeli company BaroMar is preparing to test a clever new angle on grid-level energy storage, which it says will be the cheapest way to stabilize renewable grids over longer time scales. This innovative system lets water do the work.

This remarkable project promises to open up zero-carbon energy storage to a broad range of areas without huge hills, delivering 2.5 times the power of water-based hydro. A pilot plant has been greenlit, with full-size, grid-scale projects to follow.

An energy supplier in Finland has announced the upcoming construction of an underground seasonal thermal energy storage facility about the size of two Madison Square Gardens that could meet the heating demands of a medium-sized city for up to a year.

Part of the exorbitant cost of offshore wind energy is the massive crane ships required to install the damn things – but Norwegian company Windspider has come up with a brilliantly lightweight crane system that promises to slash costs in half.

Sweden's CorPower has announced "breakthrough" results from Atlantic ocean testing of its full-scale floating generators, which cleverly time their motions to amplify smaller waves while protecting themselves against dangerous storm conditions.