Posts Tagged ‘energy storage’

Former Tilbury power station


If this goes ahead it’s likely to be finished years before the troubled Hinkley Point nuclear plant.

German utility RWE has commenced the planning process for the construction of a 2.5 GW gas-fired power plant in Essex, England, reports Power Engineering International.

If the development is to proceed it would be a big boost for the UK energy system, as old coal and nuclear plants are being taken out of the equation.

RWE is starting the planning process to build a 2.5 GW gas power plant in Tilbury, Essex on the site of a former biomass station in what could be a potential boost to the UK energy system.

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There’s the wind, water, and solar (WWS) vision promoted by a few academics, and then there’s economic and technical reality – with a seriously large chasm in between.

Friends of Science Calgary

Contributed by Robert Lyman © 2017

A new paper prepared by the U.S. National Oceanic and Atmospheric Administration’s (NOAA) Earth System Laboratory and published in the Proceedings of the National Academy of Sciences (PNAS) is drawing attention in policy circles in the U.S. The paper critiques the claims of a study by Mark Jacobson et. al. that it is feasible, at low cost, to achieve 100% conversion of the U.S. electricity generation system to wind, hydroelectricity and solar energy by 2050 (the “WWS Vision”).

The authors of the critique include experts in the National Renewable Energy Laboratory, who could not be accused of being “climate sceptics”. Indeed, they have previously authored reports in which they concluded that an 80% decarbonisation of the U.S. electrical grid eventually could be achieved at “reasonable” cost, assuming that a broad suite of generation options and other technologies are employed. Their critique of the Jacobson…

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What could possibly go wrong? Like all pumped storage, every ‘refill’ uses more electricity for the pumping than is generated by its water release. The UK is also looking to develop similar schemes. The motivation is the intermittency of renewables.

The German state of North-Rhine Westphalia is set to turn its Prosper-Haniel hard coal mine in Bottrop into a 200 MW pumped-storage hydroelectric plant reports PEI.

The facility will act like a battery and will have enough capacity to power more than 400,000 homes, according to state governor Hannelore Kraft.

Other mines may also be converted after Prosper-Haniel because the state needs more industrial-scale storage as it seeks to double the share of renewables in its power mix to 30 per cent by 2025, she said. North-Rhine Westphalia generates a third of Germany’s power.
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Credit: impactlab.net

Credit: impactlab.net


Is the world ready for organic flow batteries using extracts from rhubarb? PEI reports on some new electricity storage ideas hoping to save renewable energy from ultimate failure. ‘Holy Grail’ or wild goose chase – time will tell.

The US energy secretary, Ernest Moniz, believes the advances being made in storage technology means that the country will be completely decarbonised by the 2050s.

A global race, seen initially in Europe and the US is leading to a rapid acceleration in innovation that may dispense with the need for nuclear and thermal power by that time according to the technology’s backers, as the Achilles heel of intermittency will no longer impact on the overall effectiveness of renewables.

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Irish transmission lines [image credit: thejournal.ie]

Irish transmission line [image credit: thejournal.ie]


Nothing about costs, but let’s see how this demonstration project goes. The technology has already been tried in cars.

Europe’s first flywheel hybrid energy storage plant has been officially launched in Ireland, reports PEI.

The plant in Rhode, County Offaly, is owned and operated by Irish energy company Schwungrad Energie and is expected to enter a test operational phase in February.

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Risky business [image credit: safetysource.co.nz]

Risky business [image credit: safetysource.co.nz]


Some might query whether 5 megawatts is ‘giant’ in terms of national electricity demand, and the usual claims that battery costs are going to drop like a stone are made, but nevertheless this attempt at an energy storage system is happening, as edie.net reports.

German energy company E.ON has started constructing the world’s first modular large-scale battery in the German town of Aachen.

The modular aspect of the design means that various battery technologies can be ‘plugged in’ to the system – a world-first for a battery of this size.

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Claims of up to 70% efficiency have been made for converting ‘wrong time’ electricity produced by intermittent generators such as wind turbines to ‘right time’ electricity supplied onto the grid. The proposed storage medium is liquid air (with co2 and water vapour first removed. This -190C medium is used to drive a piston engine without combustion, and waste heat is re-used.

dearman-engine

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