Energy storage incentive ‘essential’ for the UK – Solar Power Portal

See on Scoop.itMicro generation – Energy & Power systems

The UK will need to develop an effective energy storage incentive if it is going to rise to the challenge of decarbonising its electricity supply, according to the managing director of one of Britain’s emerging energy storage firms.

Speaking to Solar Business Focus UK for an upcoming feature on energy storage, Simon Daniel of Moixa Energy said: “The UK has to have a storage strategy, it is essential. If the UK is to hit the minister’s ambition of 20GW of solar by 2020 and also its target for wind, they can’t actually do that unless they have a proper storage strategy in place. Otherwise you will have with extreme intra-day volatility and you end up with a lot of wind curtailment and network upgrade issues – like Germany.”

According to Daniel the key to the success of storage in the UK lies at the edge of the grid. He explained that having distributed storage systems in consumers’ homes allows households to directly benefit from the system every day. In addition, smart technology could allow the network operators to have control over the batteries. Daniel explained: “Being at the edge is also a useful place for a network operator in order to mitigate various grid issues like excess solar, voltage drop, heat pumps or electric vehicles switching on. Also, storage units can be aggregated at the edge and treated like pumped hydro to do more heavy-lifting.

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Storing Power with Molten Salt – MIT Technology Review

See on Scoop.itMicro generation – Energy & Power systems

A small startup based in Emeryville, California, will build a pilot-scale energy storage system that could provide a cheaper, more practical way of storing large amounts of electricity and help enable the power grid accommodate large amounts of renewable energy.

Halotechnics has announced a deal with a partner to construct a one-megawatt plant that will store energy in molten salts—a technique previously used to store energy at some large solar thermal plants. The company says it will cost half as much as battery storage, and could compete with the cheapest way of storing large amounts of electricity—pumping water up a hill and using it to drive a turbine as gravity brings it back down.

Halotechnics is developing a new kind of system that uses a new molten salt chemistry to store energy from any source of electricity. It uses electricity to drive a heat pump, which can take low temperature heat. Halotechnics’s innovation is developing molten salts with the properties that allow them to store heat from off-the-shelf heat pumps. Developing the salts involved the use of a robotic system that combines many different types of salts and tests the properties of the resulting mixture, allowing it to quickly develop mixtures that have different properties.


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Adsorption-based thermal batteries could help boost EV range by 40% – SAE International

See on Scoop.itMicro generation – Energy & Power systems

“A thermal battery charges and discharges much like an electrical battery, except that it provides a temperature difference instead of a voltage difference,” said Evelyn Wang, a professor of mechanical engineering at MIT, who is leading the work. “Our focus is developing a thermal battery with enough energy density to run the HVAC systems in EVs and so help overcome existing range limitations.”

In addition to storing enough energy, the new system must be compact and lightweight enough to fit in electrical vehicles, she said, noting that her team “was working closely with Ford on meeting the EV packaging constraints.” The plan is to test the technology in a Ford Focus EV after the first prototype hot-cold device is completed, which is expected in six to nine months.

“So far, we’ve finalized the design and have started building a prototype that demonstrates the energy density we need,” Wang said. “Next we’ll need to scale up materials production.”

The program is targeting a 2.5-kW device with 2.5 kWh of cooling capacity and 4.5 kWh of heating capacity. The unit should weigh about 35 kg (77 lb) and occupy a volume of 30 L (1.1 ft3). If successful, the technology could potentially extend EV driving range by 30-40%. Such a system—if sufficiently effective—could also work in hybrids and conventional internal-combustion-engine powered cars, not to mention buildings.

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Atlantis Resources secures €7.7 million from European Commission …

See on Scoop.itTurbines Design & Power

The EC funding will support deployment of multi tidal-turbine arrays at the business’ MeyGen tidal energy site and will be supported by DHI, Royal HaskoningDHV and the University of Edinburgh. Scheduled to run from 2014, the programme will facilitate the design, installation and operation of the company’s 1.5MW AR1500 tidal energy turbines in the Inner Sound of the Pentland Firth, off the north coast of Scotland.

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