The two companies want to test the smart grid's behavior and technology in practice. Due to its large share of renewable sources of energy, Wachtendonk serves as a sort of role model for Germany's energy transition.
The town's 8,000 inhabitants get about 80 percent of their electricity from photovoltaic systems or other sources of renewable energy.
As a result of the energy transition, Germany's power grid is being transformed from a demand-controlled "one-way street" into a bidirectional-flow network. Energy can be fed into and out of the system at a variety of locations. However, the amounts of wind and solar power supplied vary. The result is voltage fluctuations in the grid and an increased risk of a power outage in parts of the grid under high load. The power grid of the future will have to offset such fluctuations better by actively monitoring voltages and automatically regulating them.
As part of its grid modernization program, SWK installed empty data transmission line pipes in the Wachtendonk grid in 2010 and ensured that 52 of the 105 local electrical substations were capable of receiving smart grid components. The company is now installing smart meters from Siemens in numerous distribution boxes and at 100 of the town's households.
The smart meters have a power snapshot function, which enables them to take "snapshots" of the current grid condition in addition to supplying data on electricity consumption. The meters also transmit the measurement values to local smart substations, which consist of compact medium-voltage switchgear and adjustable local grid transformers, as well as of remote control systems, grid protection technology, and transmission systems.
State-of-the-art sensor and communications technology makes the substations "smart." The integrated adjustable local grid transformers from Siemens stabilize the grid at the interface between low-voltage and medium-voltage networks. On a cloudless day, for example, the data from the smart meters might show that voltage is increasing while electricity consumption is low.
This would mean that photovoltaic systems are feeding large amounts of power into the grid and the transformer would consequently adjust the voltage. Smart, automated grids are part of Siemens' environmental portfolio, with which the company generated approximately €33 billion in sales in business year 2012.
Dr. Norbert Aschenbrenner | Siemens InnovationNews
New method increases energy density in lithium batteries
24.10.2016 | Columbia University School of Engineering and Applied Science
'Super yeast' has the power to improve economics of biofuels
18.10.2016 | University of Wisconsin-Madison
Researchers from the Institute for Quantum Computing (IQC) at the University of Waterloo led the development of a new extensible wiring technique capable of controlling superconducting quantum bits, representing a significant step towards to the realization of a scalable quantum computer.
"The quantum socket is a wiring method that uses three-dimensional wires based on spring-loaded pins to address individual qubits," said Jeremy Béjanin, a PhD...
In a paper in Scientific Reports, a research team at Worcester Polytechnic Institute describes a novel light-activated phenomenon that could become the basis for applications as diverse as microscopic robotic grippers and more efficient solar cells.
A research team at Worcester Polytechnic Institute (WPI) has developed a revolutionary, light-activated semiconductor nanocomposite material that can be used...
By forcefully embedding two silicon atoms in a diamond matrix, Sandia researchers have demonstrated for the first time on a single chip all the components needed to create a quantum bridge to link quantum computers together.
"People have already built small quantum computers," says Sandia researcher Ryan Camacho. "Maybe the first useful one won't be a single giant quantum computer...
COMPAMED has become the leading international marketplace for suppliers of medical manufacturing. The trade fair, which takes place every November and is co-located to MEDICA in Dusseldorf, has been steadily growing over the past years and shows that medical technology remains a rapidly growing market.
In 2016, the joint pavilion by the IVAM Microtechnology Network, the Product Market “High-tech for Medical Devices”, will be located in Hall 8a again and will...
'Ferroelectric' materials can switch between different states of electrical polarization in response to an external electric field. This flexibility means they show promise for many applications, for example in electronic devices and computer memory. Current ferroelectric materials are highly valued for their thermal and chemical stability and rapid electro-mechanical responses, but creating a material that is scalable down to the tiny sizes needed for technologies like silicon-based semiconductors (Si-based CMOS) has proven challenging.
Now, Hiroshi Funakubo and co-workers at the Tokyo Institute of Technology, in collaboration with researchers across Japan, have conducted experiments to...
14.10.2016 | Event News
14.10.2016 | Event News
12.10.2016 | Event News
24.10.2016 | Power and Electrical Engineering
24.10.2016 | Life Sciences
24.10.2016 | Life Sciences