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a reprint from ee-news Sowohl Batteriespeicher wie moderne Pumpspeicherwerke können innerhalt von 30 Sekunden Primärregelenergie liefern. Engie Deutschland beide Speichertypen kombiniert und auf dem Gelände der Kraftwerksgruppe Pfreimd in der deutschen Oberpfalz einen 12.5 MW Lithium-Ionen-Speicher in Betrieb genommen. Der Anteil der erneuerbaren Energien an der Bruttostromerzeugung liegt mit 43 Prozent in Bayern weit über dem Bundesdurchschnitt. Neue Technologien wie der Grossbatteriespeicher mit kurzen Reaktionszeiten ergänzen die bewährten Technologien und sind ein wichtiger Baustein für das Stromsystem der Zukunft. Der dezentrale Batteriespeicher ergänzt die bestehende Anlage des Pumpspeicherkraftwerks, das bereits heute rund fünf Prozent der Regelenergie für das deutsche Netz bzw. ein Prozent für das westeuropäische Übertragungsnetz liefert. Über ein Pooling beider Anlagen sorgt Engie für die nötige Besicherung der Regelene...

  reprint (by W. Scharnhorst ) A group of Stanford researchers have come up with a nanoscale “designer carbon” material that can be adjusted to make energy storage devices, solar panels, and potentially carbon capture systems more powerful and efficient. The designer carbon that has reached the market in recent years shares the Swiss-cheese-like structure of activated carbon, enhancing its ability to catalyze certain chemical reactions and store electrical charges; but it’s “designed” in the sense that the chemical composition of the material, and the size of the pores, can be manipulated to fit specific uses. The designer carbon tested at Stanford is “both versatile and controllable,” according to Zhenan Bao, a professor of chemical engineering and the senior author of the study, which appeared in the latest issue of the journal ACS Central Science . “Producing high-surface-area carbons with controlled chemical composition and morphology is really challenging,” says...

reprint European energy storage developers have until the end of this month to submit proposals for projects in a new 10-year transmission system operators plan. But the minimum requirements imposed by the European Network of Transmission System Operators for Electricity (ENTSO-E) mean that only a small number of projects might be eligible. _progress | M replaces _kt75 | mirror. visit: http://progress-m.blogspot.com . ready: 01.07.2015. close ✕ ENTSO-E, which represents 41 system operators in Europe, announced the search for energy storage plants at the end of last month as part of a 10-year network development plan. The plan, updated every two years, acts as the basis for a list of so-called "projects of common interest" to better integrate the grid across the European Union. To be eligible for inclusion, a project has to be at least partially located in one of the 34 countries represented within ENTSO-E, and needs to have a minimum 225-megawatt installed capacity and gene...

reprint European energy storage developers have until the end of this month to submit proposals for projects in a new 10-year transmission system operators plan. But the minimum requirements imposed by the European Network of Transmission System Operators for Electricity (ENTSO-E) mean that only a small number of projects might be eligible. ENTSO-E, which represents 41 system operators in Europe, announced the search for energy storage plants at the end of last month as part of a 10-year network development plan. The plan, updated every two years, acts as the basis for a list of so-called "projects of common interest" to better integrate the grid across the European Union. To be eligible for inclusion, a project has to be at least partially located in one of the 34 countries represented within ENTSO-E, and needs to have a minimum 225-megawatt installed capacity and generation capability of 250 gigawatt-hours per year. Bloomberg New Energy Finance associate Logan Goldie-Scot ...

reprint In an industrial park on the outskirts of Pullman, Wash., 10 white storage trailers sit side by side, neatly arranged in two rows. These are no ordinary storage units. Arranged on racks inside are the guts of a large rechargeable battery, the kind of device that can store and release utility-scale amounts of electricity. But this is no ordinary storage battery , either. In contrast with the typical lead-acid batteries used to start car engines or the lithium-ion cells that power electric vehicles — both of which are largely solid — this battery is mostly liquid. The chemicals that react to produce electricity are dissolved in water and circulated into and out of the heart of each cell, where the reaction occurs. For that reason, it is called a flow battery, and the one in Pullman, a demonstration project that will be tested over the next year and a half, is one of the largest in the world. It can store about 3.2 megawatt-hours of energy and discharge a megawatt of power for ov...

-- a _kt75 | reprint Download: Quarterly Notes on Sustainable Water Management - Q01/2014 There is a boom in renewable energy sources coming online worldwide, but the predominant types – solar and wind – are problematic due to their variable nature. For most regions of the world, the sun cannot be expected to shine nor the wind blow when required. What is needed is a way to capture that energy when available, perhaps in the middle of the night, when demand is low, and then store it until it can be used when demand rises. But this is not a trivial problem to solve. _progress | M replaces _kt75 | mirror. visit: http://progress-m.blogspot.com . ready: 01.07.2015. close ✕ According to the European Wind Energy Association , at the end of 2013, the UK had 10.5GW of wind turbine capacity installed, with more in planning and construction. As the percentage of energy generated from renewables increases, the intermittency problem becomes more acute, as has been seen in count...

-- a _kt75 | reprint Download: Quarterly Notes on Sustainable Water Management - Q01/2014 There is a boom in renewable energy sources coming online worldwide, but the predominant types – solar and wind – are problematic due to their variable nature. For most regions of the world, the sun cannot be expected to shine nor the wind blow when required. What is needed is a way to capture that energy when available, perhaps in the middle of the night, when demand is low, and then store it until it can be used when demand rises. But this is not a trivial problem to solve. According to the European Wind Energy Association , at the end of 2013, the UK had 10.5GW of wind turbine capacity installed, with more in planning and construction. As the percentage of energy generated from renewables increases, the intermittency problem becomes more acute, as has been seen in countries like Germany or Ireland. Germany, the country with the highest renewable capacity in Europe, has faced maj...