[reuters.com] – Siemens, Airbus, Rolls-Royce team up on hybrid-electric propulsion
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
EasyJet says that electric flying could be with us in a decade and for that purpose has begun a partnership with US firm Wright Electric to build a battery-powered plane for two hours flight duration.
[theguardian.com] – EasyJet says it could be flying electric planes within a decade
[money.cnn.com] – Your airliner may be flying electric within a decade
[telegraph.co.uk] – EasyJet could be flying battery-powered electric planes within the next 10 years
A UK government commission under former energy cabinet minister Charles Hendry has advised to go ahead with a 320 MW tidal energy project in Swansea Bay, Wales.
The British industry may have missed the boat with wind energy manufacturing, here is a chance to lay a claim on becoming a leader in tidal power.
Three largest operational tidal power plants:
[wattisduurzaam.nl] – Groen licht voor Britse getijdencentrale van ±500 megawatt
[deepresource] – Swansea Bay Tidal Lagoon
[wikipedia.org] – Charles Hendry
[telegraph.co.uk] – Tidal lagoon developer to sign grid deal for £8bn Cardiff project
[bbc.com] – Ecotricity chief says Swansea tidal lagoon ‘too costly’
[walesonline.co.uk] – Everyone in Swansea is being urged to ‘Love the Tidal Lagoon’ to try to help make it happen
[power-technology.com] – Tidal giants – the world’s five biggest tidal power plants
Core idea: freeze air with excess renewable electricity for storage purposes and when you need electricity, warm the liquid air with heat from the environment and as such create high pressure air that can be used to drive a generator. Advantage: scalability, mature technology, low cost, high lifespan, possibility to include waste heat (for instance from powerstations) to increase efficiency. 50 MWh typical storage volume (“entry level”).
In isolation the process is only 25% efficient, but this is greatly increased (to around 50%) when used with a low-grade cold store, such as a large gravel bed, to capture the cold generated by evaporating the cryogen. The cold is re-used during the next refrigeration cycle. Efficiency is further increased when used in conjunction with a power plant or other source of low-grade heat that would otherwise be lost to the atmosphere. Highview Power Storage claims an AC to AC round-trip efficiency of 70%, by using an otherwise waste heat source at 115 °C. The IMechE (Institution of Mechanical Engineers) agrees that these estimates for a commercial-scale plant are realistic. However this number was not checked or confirmed by independent professional institutions.
[lowcarbonfutures.org] – Liquid Air Technologies – a guide to the potential
[highview-power.com] – Highview company site
[energystorage.org] – Liquid Air Energy Storage (LAES)
[renewableenergyworld.com] – A Look at Liquid Air Energy Storage Technology
[wikipedia.org] – Cryogenic energy storage
[the-linde-group.com] – Liquid Air Energy Storage (LAES)
[highview-power.com] – Liquid air storage tour
[wikipedia.org] – Georges Claude
[wikipedia.org] – Liquefaction of gases
DONG Energy of Denmark has won the bid for building the largest offshore wind park to date (1.4 GW), Hornsea-2 in the British part of the North Sea at a record low price guarantee of £57.50/MWh and is scheduled for completion in 2022. DONG is currently working on Hornsea-1 (1.2 GW), to be completed in 2020.
The Scottish government has pledged to phase out new petrol and diesel cars and vans across Scotland by 2032, eight years ahead of the UK Government target. Nicola Sturgeon outlined plans to “massively expand” charging points and set up pilot projects to encourage uptake of electric vehicles.
Comment: Scotland can afford it, now that it every now and then produces more than 100% of its electricity needs from renewable power.
[independent.co.uk] – Scotland to ‘phase out’ new petrol and diesel cars by 2032
[techcrunch.com] – Scotland plans to ‘phase out’ gas and diesel cars by 2032
[independent.co.uk] – Scotland sets renewable energy record as wind power provides equivalent of 118% of nation’s electricity
Fascinating English-spoken video of Dutch origin [*], with graphics illustrating the energy policy of the European Union for 2050 (of which Britain will no longer be a part after Brexit). Core of solving the energy and climate problems are 25,000 10 MW offshore turbines that will provide the countries bordering the North Sea with 90% of its electricity needs and leaving ample additional capacity potential to provide the rest of Europe with energy as well, in the form of electricity or hydrogen.
[*] – A production of IABR in cooperation with Ministerie van Economische Zaken, Van Oord, Shell, TenneT, Zeeland Seaports, European Climate Foundation, RWE, Natuur & Milieu, Havenbedrijf Rotterdam and Havenbedrijf Amsterdam e.o.
The old and near obsolete North Sea oil & gas infrastructure can be reused for the coming reneweable energy base, where the North Sea will play a central role. Core themes ENSEA:
Energy system: The infrastructure and processes that deliver power to end users and includes the electricity and gas supply networks, power generators (both large and centralised land small and decentralised) and other assets.
Balancing: Regulation of energy production, storage and consumption in order to equalise the production and consumption at any time (e.g. by quick regulating gas power plants) to keep the electrical energy system secure.
Back up: Energy production capacity which is in standby to react quickly when there is a difference in energy production and consumption e.g. because of fluctuating production of renewable energy sources like wind and solar energy.
Storage: Small capacity storage and high power pumps (e.g. flywheels or batteries) capable for operating for minutes or hours, or larger capacity storage necessary for extended periods without production from renewable sources.
Infrastructure (electricity grid): Smart grid infrastructures designed for both supply to customers as well as production of power within these grids.
Jutland/Denmark now also member of ENSEA:
[ensea.biz] – Associated Partner Denmark
[wikipedia.org] – Sabatier reaction
CO2 + 4H2 → CH4 + 2H2O ∆H = −165.0 kJ/mol
Hydrogen can be won from water and electrolysis, using renewable electricity. Hydrogen is explosive and needs to be stored at very low temperatures. By mixing it with the superfluous greenhouse gas CO2 (an exothermic reaction, meaning you get extra heat), you get methane, which is far easier to handle. And you solve the storage problem.
[source] La Mancha, Don Quixote and Windmills. Nobody fighting the Spanish wind mills this time around.
The wind is blowing in the right direction for the European wind industry these days. 3 giant 1.2 GW wind projects have been given the green light, one Spanish onshore in North-East Aragon and two offshore in the North Sea off the coast of England: Hornsea I and East Anglia III, the first with 7MW Siemens wind turbines. The British projects are supposed to be completed by 2020 and 2025 respectively.
[wikipedia.org] – Hornsea Wind Farm
[wikipedia.org] – East Anglia Array
[reuters.com] – ScottishPower Renewables gets planning approval for 1.2 GW offshore windfarm
[genewsroom.com] – Forestalia Selects GE Renewable Energy to Provide 1.2 GW Wind Power in the Largest European Auction to Date
[renewablesnow.com] – Dong makes final investment decision on 1.2-GW wind project off UK
[ge.com] – Generation Next: Wind Already More Powerful Than All Nuclear Plants Combined
Statoil of Norway busy constructing floating wind turbines for the Scottish Hywind projects.
Scotland makes impressive progress with installing renewable power. During the first half of 2017 124% of Scotland’s electricity needs were met from wind power alone. According to a report, Scotland could be fossil-free by 2030.
A small 30 MW wind farm has been completed in the waters of Stord, Norway and will be towed to Scotland. The project consists of five 6 MW wind turbines. What makes the project unique is that the turbines are floating, ensuring that shallow water is no longer necessary for offshore wind to work.
[gamesacorp.com] – Innovation in world´s largest floating wind farm by Siemens Gamesa can open new offshore areas
[wikipedia.org] – Floating wind turbine
[wikpedia.org] – Hywind
[fastcompany.com] – Scotland Will Be Home To The World’s Largest Floating Wind Farm
[spiegel.de] – Schottlands schwimmende Windkraftwerke
Van Oord has been awarded the contract for East Anglia ONE offshore windfarm by ScottishPower Renewables (part of the Iberdrola Group) for the transport and installation of 102 three-legged jacket foundations. This is the largest amount of three-legged foundations in a wind farm ever installed worldwide. The East Anglia ONE offshore windfarm is located in the southern North Sea, 45 kilometers southeast of the town of Lowestoft, United Kingdom. The offshore wind farm will have 102 Siemens 7 MW wind turbines, with a total capacity of 714 MW. Once operational in 2020, the offshore wind farm will deliver sustainable energy to 500,000 households.
Van Oord will be responsible for the logistics of all jacket foundations and piles, sourced from various suppliers, and the transport to the marshalling port of Flushing in The Netherlands. From there the foundations will be transported and installed with an installation vessel. The installation work is planned between half of April 2018 and the end of October 2018.
[vanoord.com] – Van Oord signs contract for East Anglia ONE offshore windfarm
[wikipedia.org] – East Anglia Array
[cleantechnica.com] – Siemens Awarded 714 MW Contract For East Anglia ONE
[scottishpowerrenewables.com] – East Anglia ONE