cryogenic storage offers hope for renewable energy - battery energy storage
The world's largest cold energy storage device is being put into use at a location near Manchester.
Low-temperature energy facilities store electricity from renewable or non-renewable sources
Peak is generated by cooling the air into liquid form.
When the liquid air heats up, it expands and can drive the turbine to generate electricity.
The 5 MW nuclear power plant near Manchester can power 5,000 households in about three hours.
High view Power Storage, the company behind the plan, believes that this technology has great potential for long-term promotion.
Terms for the use of green energy.
Electricity demand varies depending on factors such as time and season.
The State Grid is ready for a surge in demand and the power station is on standby
Start the power supply by preparing.
However, with the development of the coal industry, it will become more and more difficult to cope with these peaks and lows.
Thermal power plants shut down and intermittent renewable energy sources like wind and solar appear online.
2015 of renewable energy supplies almost a quarter of electricity to the UK.
The intermittent nature of green energy has led researchers to work on improving energy storage.
Pumping water and electricity can provide a lot of energy for a long time, lithium-
Ion batteries can respond to demand in milliseconds and are ideal for portable electronic devices and electric vehicles.
But hydropower depends on a specific geographical location, because water has to be pumped uphill, and currently batteries cannot store energy for towns or cities in a cost-effective manner.
"Our technology is a bit like a locatable version of the pumping system.
Any place that takes a long time on a large scale
"Duration Storage may help integrate offshore wind farms, systems like ours can help to achieve this," Gareth Brett of Duration view Power explained during a visit to Manchester's low temperature site . ".
"5 mw is a bit small for this technology;
Anything above 10 megawatts is the scale we are talking about.
"We have designed a factory that can run 200 MW/MWh, which is enough to keep a city running for 6 hours.
Low temperature storage works using renewable or non-renewable
Cool the air to the peak current-
Turn it into liquid at 190 °c.
It is then stored in a heat preservation tank similar to a large thermos bottle.
In order to release the stored energy, the liquid air is exposed to environmental conditions, causing it to expand back into the gas.
The increase in volume is huge, about 700 times the amount used to drive turbine power generation.
The demonstration plant at Highview Power is located next to the landfill gas in Pilsworth.
There is a large insulated tank across the road with a pile of gas engines inside.
These engines burn methane gas generated by decomposing garbage to generate electricity.
The waste heat of this process is captured and used to improve the efficiency of the low temperature process.
Dr Sheridan rarely, research assistant at the Grantham Institute at Imperial College London, describes the phenomenon that this technology is unique.
"There is energy storage and energy production.
You can take advantage of cold waste and waste heat. . .
Because you put both electrical and thermal energy in, in some cases, you may get more electrical energy than you input.
"In addition to providing energy storage, this technology can also solve the waste heat problem, a by-product
A product of many industrial processes.
Waste cold, for example, can be used in liquefied natural gasLNG)terminals.
While low temperature storage may be one of the solutions to help power supply in the future, there are also new ways to control demand.
"One of the most important issues at the moment is to understand the demand side," Dr. Jenifer Baxter, head of energy and environment at the Society of Mechanical Engineers, told the BBC.
"In order to meet the demand, we often only produce electricity.
Once we understand the requirements, we will have more confidence in the deployment technology.
"Demand-side response, that is, the concept of adjusting use based on the available power supply, can work easily with other innovations such as low-temperature energy storage.