DeepResource

Observing the world of renewable energy and sustainable living

Archive for the month “November, 2017”

The Netherlands Might Become One of the Largest Offshore Wind Markets

[offshorewind.biz] – Ørsted: The Netherlands Might Become One of the Largest Offshore Wind Markets

RVO.nl Issues Hollandse Kust (noord) Geotechnical Soil Investigations Tender

An agency of the Dutch ministry of economic affairs has issued a tender for the investigation of the soil in the projected areas of a large wind farm, “Hollandse Kust” (Dutch Coast),

[offshorewind.biz] – RVO.nl Issues Hollandse Kust (noord) Geotechnical Soil Investigations Tender

Nordex Awarded 180-MW Project in the Netherlands

Location: Wieringermeer, 60 km north of Amsterdam.
Substance: 50 N117/3600 turbines

[nordex-online.com] – Nordex Awarded 180-MW Project in the Netherlands
[wikipedia.org] – Nordex SA

Read more…

Vattenfall Orders 1 GW Wind Park from Siemens-gamesh

The largest offshore wind order of 2017: the three wind farms, Kriegers Flak in the Baltic Sea and Vesterhav Syd and Nord in the North Sea, have a total investment value of close to EUR 1.7 billion (SEK 16.5 billion).

[vattenfall.com] – Vattenfall Places Historically Large Wind Power Order
[4coffshore.com] – Vesterhav Nord/Syd Offshore Wind Farm
[offshorewind.biz] – Vattenfall Inks Danish Offshore Wind Contracts

Siemens, Airbus and Rolls Royce Aim at Hybrid Electric Plane by 2020

[reuters.com] – Siemens, Airbus, Rolls-Royce team up on hybrid-electric propulsion

Energy Island(s) North Sea Taking Shape

After TenneT TSO B.V. (Netherlands), Energinet (Denmark), TenneT TSO GmbH (Germany) and Gasunie (Netherlands), it is now the Port Authority of Rotterdam that is backing plans to build one or more wind power hub islands in the middle of the North Sea, starting from 2025. This is significant as the Port Authority has broad experience in acquiring new land from the sea. These hubs could play an important role in realizing the intended 70 GW to 150 GW offshore wind power in the North Sea by 2040. Adhering to the Paris Accords, 180 GW needs to be installed in the North Sea by 2045. Every energy island should collect 10-30 GW and transport the energy via connectors to the Netherlands, Germany, Denmark, Norway and Britain.

The second use of these socalled Power Link Islands is the production of hydrogen via power-to-gas conversion installations and brought onshore via existing pipeline infrastructure. And thirdly, large converterstations in the middle of the sea would no longer be necessary. And finally, these islands could function as maintenance hubs for nearby wind parks.


Converter platforms like this one soon superfluous?

[tennet.eu] – Havenbedrijf Rotterdam vijfde partner in North Sea Wind Power Hub-consortium
[tennet.eu] – TenneT presenteert ideeën voor schaalvergroting van windenergie op Nederlandse Noordzee
[northseawindpowerhub.eu] – North Sea Wind Power Hub

Hans-Josef Fell – Das Tempo der Energiewende

German language video.

Hans-Josef Fell is one of the most important advocats of renewable energy in Germany. He was the man behind “feed-in tariffs”, introduced in Germany in 2000 and and set an example for the rest of the world.

Fell has bad news: the energy transition in Germany is stalling. Were in 2000, 7 GW of new capacity was installed, in the last few years it has fallen back to 1.5 GW. Big oil, coal and lignite producers are successful in slowing down the transition.

[wikipedia.org] – Hans-Josef Fell

Printing Solar Cells

Solliance from Eindhoven, The Netherlands, wants to mover away from standard solar panels towards thin film solar and apply those to surfaces like cars, windows, curved building surfaces or even glasshouses:

They are close to printing cheap roles of hundreds of meters of solar thin film cells, with a conversion efficiency of 12.2-13.5 % on the basis of perovskites.

[hightechcampus.com] – Solliance dichterbij drukmachine voor zonnecellen op rol

Read more…

High Tech Campus Eindhoven – Toekomst Zelfrijdende Auto

In deze podcast praat interviewer Ingelou Stol met:

– Gerardo Daalderop van chipfabrikant NXP
– Merien ten Houten van start-up Amber
– Maurice Kwakkernaat van TNO

[hightechcampus.com] – High Tech Podcast #1 – Toekomst zelfrijdende auto

Catenaries For Every Highway?

Trolleybuses in Arnhem, the Netherlands. Could this be an intermediate solution for trucks as well? How about catenaries for highways only? The result would be that trucks only needs small batteries, “for the last miles”. During long distances travel the truck’s batteries could recharge via the catenary as well.

Renewable Energy Skeptic David MacKay

[wikipedia.org] – David J. C. MacKay
[withouthotair.com] – David MacKay official site
[inference.org.uk] – MacKay’s magnum opus “Sustainable Energy — without the hot air” (pdf, 12MB)

World-Record Pumped-Hydro Storage for Scotland?

An anonymous energy blogger named “Scottish Scientist” has posted a proposal for a giant pumped hydro storage facility in the Scottish Highlands with the potential to service most of Europe.

The numbers are massive:

Height dam: 300 meter
Width dam: 2,000 meter
Max. water elevation: 650 meter
Storage volume: 4.4 billion m3
Lake surface area: 40 km2
Energy content: 6,800 GWh or 283 GW days

The new storage facility would have “enough capacity to balance and back-up the intermittent renewable energy generators such as wind and solar power now in use for the whole of Europe!”

If one “limits” the area to a circle with a radius of 3,000 km and applies 800 kW transmission lines, a two-way storage efficiency of 79% could be achieved. However, if limited to the North Sea area, one-way losses could be reduced to 7%.

The proposed design would includ a “stepped-canal solution”, see picture above. The biggest cost would be building a large canal of 170 meter width, which would require to move more earth than in the Panama Canal project to allow for discharging water speeds of 10-11 m/s.

[scottishscientist] – World’s biggest-ever pumped-storage hydro-scheme, for Scotland?
[Google Maps] – Strathdearn
[savestrathdearn.com] – Save Strathdearn Valley (local resistance to be expected)
[euanmearns.com] – The Loch Ness Monster of Energy Storage

Airbus Vahana Autonomous E-Chopper-Plane Ready for Tests

The take-off is verticle and next the rotors tilt and become propellers. Project began early 2016. Eventually the autonomous chopper could be ordered on demand at a cost of 80% less than conventional helicopters.

[vahana.aero] – Welcome to Vahana
[twitter.com] –

The Vahana prototypes

Pipistrel Alpha Electro 2-Seater Plane

Electric airplane Pipistrel Alpha from Slovenia taking off.

17 kWh battery
Battery swap in minutes
300 meter climb per minute
Flight time one hour or longer
Optimized for flight training
Regenerative breaking: descending gives back 13% electricity
Recharge in less than one hour

World Primeur – Lagerwey Self-Climbing Crane in Action

As of now, large wind turbines can be assembled without the need for the usual external giant cranes. Instead the wind tower under construction can be used itself as a crane. this reduces the cost of wind turbines construction considerable. The Lagerwey L136-4.5MW costs 4,5 million Euro if constructed conventionally. By applying the self-climbing crane, cost reduction amounts to “several hundreds of thousands of euro” over the total cost of the wind turbine.

Additionally it is now possible to install a wind tower at hard-to-reach places, like mountains ridges or dikes. Old school cranes require a transportation effort of 150 truck trailers, the self-climbing crane merely three. Additionally it is no longer necessary to prepare the ground for the weight of large eternal cranes. Installation cost self-climbing cranes: 20% of the conventional installation cost.

[eemskrant.nl] – Wereldprimeur in de Eemshaven; Lagerwey zet zelf klimmende kraan in bij bouw windturbine
[zonnepanelenophetdak.nl] – Lagerwey ontwikkelt eerste zelfklimmende hijskraan

New Car Mileage and Emission Certification Test WLTP

[source]

Most people realize that official mileage data from car manufacturers are bogus. On average their figures are 42% better than reality as established by the International Council on Clean Transportation (ICCT). The ICCT was one of the clubs that helped unveiling the VW diesel scandal. One of the main reasons behind the discrepancy is the 1992 old test method called NEFZ (“Neuer Europäischer Fahrzyklus” or “New European Driving Cycle”).

Meanwhile there is new test method WLTP (“Worldwide Harmonized Light Vehicles Test Procedure”) that should shorten the distance between test and reality. WLTP is in force since September 1, 2017 for new cars

[spiegel.de] – Die Verbrauchslüge

World’s Largest Windturbine Nears Completion

Note water reservoir at the bottom of the tower.

Location: Gaildorf, Baden-Wuertenberg, Germany
Hub height: 178 m
Total height: 246 m
Investment: $81 M
Yearly return: $7.6 M
Annual production: 10.5 GWh
Payback time: 10.6 year

Apart from these impressive figures, the turbine has an innovation in the form of a “natural storage” facility. At the bottom of the tower, the turbine has a water reservoir of 40,000 m3 that communicates with a lake reservoir at 200 m lower altitude and connected with a 5 km long pipe. This reservoir represents a potential energy of 22.2 MWh or five hours worth of max. windturbine output. Energy efficiency: 80%.

[windpowerengineering.com] – Max Bögl Wind puts turbine on THE tallest tower
[de.wikipedia.org] – Naturstromspeicher Gaildorf
[naturspeicher.de] – The Naturstromspeicher – Our Big Green Battery
[wattisduurzaam.nl] – ’s Werelds hoogste windmolen staat in een piepklein stuwmeer

[source]

Post Navigation