Observing the renewable energy transition from a European perspective

Archive for the month “June, 2021”

Australian Startup Claims it Can Cut Cost Electrolisys by a Third

The news is a little thin on technical details. Plasma electrolysis?

From Rechargenews:

Understandably, HSA is keeping the details of its technology close to its chest, but executive director Brian Power tells Recharge that it works by using electrical power inside a plasma chamber at certain frequencies that elicit favourable responses from the hydrogen and oxygen atoms in water — a process that he says requires much less power than standard PEM or alkaline electrolysers.

“We’re letting the frequencies do all the work, whereas [a standard electrolyser] lets the electricity do all the work,” he says.

[] – Plasma electrolysers cut cost green hydrogen by a factor of 3
[] – Company site
[] – Plasma (physics)
[] – Electrode less water “electrolyses” using a radio frequency plasma (2016)
[] – Contact Glow Discharge Electrolysis (2020)
[] – Plasma-driven solution electrolysis (2021)
[] – Hydrogen Production by Plasma Electrolysis (2006)

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China rolls out first renewable energy sky train

Youtube text:

A glass-bottom sky train of China’s first renewable energy-suspension railway demonstration line rolled off in southwest China’s Chengdu on June 26. The sky train has glass paneling on three sides, offering passengers on board a stunning 270-degree view. The maximum capacity of one carriage is 120 people. Driven by new energy resources, the sky train is greener and more economical. According to its developer, the train tops out at 80 kilometers per hour and costs only about one-sixth to one-eighth of a regular subway.

Breaktrough Liquid Metal Battery

Exploring Solar Panel Efficiency Breakthroughs in 2020

Hollandse Kust Zuid OWF Jacket Foundation Installed

Watching the video is just as interesting as watching the grass grow in your garden. The Heerema Sleipnir picked up the jacket in Norway and installed it days later in Dutch waters.

Heerema Marine Contractors’ heavy lift vessel Sleipnir has installed the second offshore substation jacket foundation at the Hollandse Kust Zuid wind farm offshore the Netherlands.

Located 22 kilometres off the Netherlands coast, the 2,852-tonne jacket will support TenneT’s 700 MW Hollandse Kust Zuid Beta transformer platform which will be ready for use in 2022.

[] – Hollandse Kust Zuid Beta Jacket Foundation Stands
[] – SSCV Sleipnir

Geothermal Could Supply 50% Of Global Electricity Needs

Less Green Electricity in Germany in H1-2021


In H1-2021 the yield of renewable electricity in Germany (43%) was less than in H1-2020 (50%), a direct consequence of the variability of the weather. This was a rather cold spring and the installation of new capacity is stalling.

[] – Ökostrom-Versorgung geht deutlich zurück

Vestas, Vattenfall Support Modvion Wooden Wind Tower

Timber! The Swedish wooden wind tower specialist Modvion is gaining traction with well-established fellow Scandinavian wind developers Vestas and Vattenfall.

[] – Vestas Ventures invests in wood technology company Modvion
[] – Vestas buys stake in Modvion
[] – Vattenfall, Modvion forge timber tower pact
[deepresource] – Our Modvion posts

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The Classical Water-pumping Dutch Windmill

The idea that on-land wind power can be used as a tool is thousands of years old. Examples are China, Babylon and Egypt.

Wind-powered machines used to grind grain and pump water, the windmill and wind pump, were developed in what are now Iran, Afghanistan and Pakistan by the 9th century. The first practical windmills were in use in Sistan, a region in Iran and bordering Afghanistan, at least by the 9th century and possibly as early as the mid-to-late 7th century.

Wind power development got an enormous boost in the Netherlands, where they were used for land reclamation purposes, wood sawing and grain grinding. Like the one shown in the video.

[] – History of wind power
[] – History of wind power

Hexicon Wind Farm Principle

Hexicon is a Swedish offshore wind design, where floating twin rotors are automatically direct themselves towards prevailing winds. Recently, a scale model was successfully tested in the Marin test center in the Netherlands. The next step is to evaluate the test data in order to achieve a pilot at Metcentre in Norway in 2023.

[] – Developer site
[] – Hexicon Completes Model Test for Its Two-Turbine Floater

Dutch test site Marin

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