As explained in the first post, Flidar gathers data on offshore sites for the possibility of windfarms. As the Flidar project is partially confidential, we cannot fully discuss the content of our thesis. As subject for this blog we will discuss the possibilities, problems and the future of offshore renewable energy production.
Recently there were two interesting videos on the VRT news (Dutch). They show how Germany is investing in renewable energy today, the advantages it brings but also the problems that coinside. In this post we will discuss the energiewende by 2022 in Germany.
Germany is investing enormously on being nuke-free in 2022, to achieve this goal they are building lots of new windfarms and solar installations. One of the biggest problems this brings is the capacity of the power net. Renewable energy is a more unpredictable source and has high peaks and low dips, for this reason the power net could get an overload or insufficient energy.
As a solution to the energy dips more energy storage could be the solution. Today, the most effective way to store energy is still pumping it to a higher location when you have an excess of power, and letting it drop again through a turbine and generator to supply energy in case of a shortage. As for now, there are not enough pumpinstallations to supply the needs. A few years ago they needed to intervene a few dozen of times a year. Today, this number has increased to a few hundred interventions a year.
For solving the overload they estimate 3000km of new high-voltage cables will be needed in Germany. Another problem for the power net is the region where they produce their energy. Wind power is mostly harvested in the north at sea or near the shore. But most of the factorys and energy consuming industry of Germany lie in the south, which causes more transport of energy and as for now they still don’t know who will build and pay for this.
By 2020 they want 35% renewable energy, compared to Belgium where the goal is 13% by 2020, it is an enourmous amount. For Belgium, where they plan for a nuclear exit in 2025 there is still a lot of work to be done.