Siemens of Germany proposed to switch to the production of hydrogen fuel

Siemens of Germany proposed to switch to the production of hydrogen fuelAccording to experts of Siemens, the huge storage of hydrogen is the only way to ensure energy security in Germany and move to large-scale use of solar and wind power.

If Germany wants to realize its ambitious plans – to obtain a third of its electricity from renewable sources by 2020 and 80% by 2050, it will have to find a way to store a huge amount of power. Otherwise it will be impossible to compensate for unstable energy output from renewable sources such as solar panels and wind turbines.

At Siemens believe that today there is only one suitable technique: the electrolysis of water and production of hydrogen fuel. Hydrogen can be converted into electric power by the gas, moreover, they can be refilled even automobiles and airplanes.

Today, the production of hydrogen inefficient: during electrolysis and subsequent combustion of hydrogen is lost two thirds of the energy. However, for the implementation of the ambitious plans of Germany, another acceptable method yet, and Siemens offers its vision of hydrogen energy.

Unlike conventional industrial electrolyzers, which need stable power supply, the new Siemens system can work under unstable power wind turbines and solar panels. It is based on proton exchange membrane similar to the one that is currently used in automotive fuel cell. The cell can be operated at Siemens Power drops 2-3 times and is ideal for wind-driven power surge in particularly windy days.

The latter is particularly important, because due to lack of power transmission lines Germany is losing about 20% of the energy generated by wind turbines. Now store this energy is simply no place. The most affordable way to save electricity is to pump the water to a great height and then lower it to drive the turbine generators. However, this method is only suitable for mountainous areas and, therefore, in the plains of Germany with the help of "pumped" only about 40 gigawatt-hours. So many windmills and solar panels can generate one hour windy and sunny day.

Modern batteries are expensive and cumbersome, so they can not solve the problem of storing huge amount of energy required in Germany at night or on a windless day.

According to specialists Siemens, if Germany provides 85% of energy from renewable sources will require energy storage at 30,000 gigawatt-hours. At Siemens claim that their electrolyzers can turn this energy into hydrogen with an efficiency of about 60%. From the result obtained in the amount of energy should take another 40% loss during reverse conversion of hydrogen into electricity. Thus, only a third will be lost "gratuitous" energy wind turbines and solar panels.

Hydrogen is needed to supply power stations can be stored in underground caverns and transported through existing pipelines or special pipes.

Leave a Reply

Your email address will not be published. Required fields are marked *

Confirm that you are not a bot - select a man with raised hand: