Home Building a better world How much power can they provide? -- ScienceDaily

How much power can they provide? — ScienceDaily


Wind power is an important pillar in Germany’s energy policy turnaround: According to the German government, the resource should cover 65 percent of German electricity needs by 2030, along with solar, hydropower and biomass. In a recent study, Dr. Christopher Jung and Dr. Dirk Schindler from the University of Freiburg show that it will be possible to cover 40 percent of the current electricity consumption with wind energy alone by the year 2030. The prerequisite is that the operators distribute the plants optimally on the German mainland. To estimate usable wind energy, the researchers have developed a new three-dimensional model. As a basis for their calculation, they used the number of new installations in 2017. If it remains constant until 2030, Germany can reach the calculated value. The team recently published its findings in the journal Energy Conversion and Management.

A fundamental idea of the researchers while developing the model was to increase the efficiency with which the wind power is used. The scientists show that in particular repowering — i.e. the replacement of old, small plants with newer, larger ones — enables enormous increases in yields of up to several hundred percent. As a result, the cost of generating electricity, which is created when the energy is converted into electricity, can be reduced significantly to a level comparable to that of brown coal. However, in order to meet the current expansion targets of the Federal Government, a significant portion of the 30,000 wind turbines must be renewed and 6,000 additional systems must be additionally installed.

Based on the researchers’ model, the available wind resources can be determined for all common plant types. Also, the expansion target can be adjusted as desired. Using the model, scientists can develop and assess scenarios in which the plant density, the expansion strategy and the repowering intensity are varied. The model also allows for a balanced spatial distribution. “In principal, we can avoid a disproportionate concentration in certain regions,” summarizes Jung. In addition, the algorithm takes into account that the number of new installations to be installed is kept as low as possible. “This would minimize disruptions in the landscape while taking the landscape and nature conservation into account,” says Schindler.

Story Source:

Materials provided by University of Freiburg. Note: Content may be edited for style and length.



Source link

LEAVE A REPLY

Please enter your comment!
Please enter your name here

Must Read

Rules to boost fuel economy for passenger vehicles will do more good than harm, new study shows — ScienceDaily

Scholars from USC and other leading universities conclude that rules on the books to increase fuel economy for passenger vehicles will do more...

New tool helps forecast when weather will make wildland fires more dangerous — ScienceDaily

The weather plays a significant role in how a wildfire grows, how fast it spreads, and how dangerous it can become for firefighters,...

Global Warming Causes And Effects

Do I need to elaborate things further? Do I have to tell you that we are all on the verge of mass mortal peril...

Are You Prepared For the Post Hurricane Aftermath?

You've put your evacuation kit together and prepared your home for another hurricane season, now what? Here are some additional items that will make...

30% Of Energy Used In A Commercial Building Is Wasted Because Of Inefficiences

This statistic as published by the Environmental Protection Agency (EPA) is staggering. The energy wasted is due to inefficiencies primarily in the mechanical, electrical...
Support