On the EUREF-Campus you can get to know the hydrogen economy and experience its unique components of a future energy system at different stations.
In 2016, we will open our explanatory showroom for energy and mobility “New Energy Platform”. In the context of this exhibition, we will put a special emphasis on the energy carrier hydrogen. At the platform inside InnoZ visitors can experience the interaction between the sectors electricity, heat and mobility close and lively. On the one hand we show you how electrolyzer, hydrogen filling station and hydrogen electric vehicle interact, and on the other hand which role hydrogen economy plays in big and small electricity grids. Complementing technologies like lithium ion storage, lead storage, renewable energies or a super condenser are here installed and operating. In the context of the exhibition, we demonstrate the future role of a hydrogen economy in a more interconnected and at the same time more decentralized energy market.
Hydrogen, electric mobility and carsharing
Hydrogen mobility is one aspect of electro mobility. Just like in the battery electric vehicle, an electric motor is responsible for driving. Instead of a lithium ion battery, you will find a hydrogen tank and a fuel cell in the car. The system efficiency of a fuel cell electric vehicle (FCEV) reaches currently around 50% – though there is continuous progress in this field. Lately, many car manufacturers announced the rollout of hydrogen operating serial models. In the beginning of 2016, three models can be found on the German market. Since September 2015 Toyota offers, for example, its Mirai, that can drive up to 500 km with its 5 kg hydrogen tank. Hydrogen is therefore a user-friendly type of electric mobility - ideal for long-distance travelling and daily life activities. At the moment 1 kg of hydrogen costs around 10 € in Germany and depending on the model and driving style you can cover around 100 km with that amount of gas. There are currently only a few hydrogen filling stations available, but many locations are being developed – only 200 m away from InnoZ – you can find one of the first filling stations built in 2011. Pure Hydrogen can be tanked up here under high pressure (700 bar). Besides Toyota’s Mirai, the Hyundai ix 35 is for sale. From the middle of 2016, the Honda Clarity is expected to be available in Europe. Also, German manufacturers have already experimented with small series in the past. As for instance the Mercedes-Benz F-Cell (B-class) used by the TU-Campus EUREF gGmbH here on-site. All of the large German manufacturers have announced models of fuel cell vehicles for the future.
The prices of FCEVs are currently rather high and add up to 60,000 to 80,000€. Due to high public subsidies the most FCEV are momentarily found in Japan and California. We hope to see FCEVs more often at the Carsharing stations on the EUREF Campus in the run of 2016. For central events we want to offer test drives with currently available models. For the experience of driving in a hydrogen vehicle, we can also recommend the use of busses owned by public transport services – it is for instance possible to explore hydrogen mobility in Hamburg every day.
Hydrogen filling station
The hydrogen filling station at Sachsendamm is one of the five filling stations in Berlin. Across Germany there are so far 16 filling stations (status: January 2016). Since 2011, Shell runs its first filling station of this kind. At Sachsendamm, cars and buses can use the technology of the German producer Linde for refueling. Gaseous hydrogen with 350 and 700 bar is offered. Users must take part in a short course of instruction and need an identification card for the ca. 3-minute fueling process. Up to 250 cars can be refueled daily. This is therefore the biggest hydrogen filling station in Berlin.
Besides Linde, the company AirLiquide is active in building a hydrogen filling station network. The hydrogen used in the filling station at Sachsendamm originates in the Linde pilot plant in Leuna, which is operating on the basis of crude glycerin. The filling station had been built in the context of the “Clean Energy Partnership” (CEP). CEP coordinates and promotes the set-up of a German-wide infrastructure. Until the end of 2016, fifty stations are supposed to be built in Germany. Until 2023, four hundred stations ought to be available.
Gasholder & -infrastructure
The Gasholder Schöneberg used to be operated industrially as a low-pressure tank and was decommissioned in 1995. The 78 meter high industrial building has been landmarked since 1994 and is a prominent sight of Schöneberg.
Between 1908 and 1910 the gasholder was erected by the Berlin-Anhalt Mechanical Engineering Company (BAMAG) as an industrial building and with concern to its filling volume, it belonged at the moment of its construction to one of the three biggest gasholders in Europe. Its type of construction corresponds to a telescopic gasholder. Accordingly the city gas was stored in an extensible bell consisting of multiple telescopically interlaced steel elements – so-called “water lutes” - and those were embedded in a water basin. This is how the gasholder could store its maximum storage capacity of 160.000 m³ gas, which was used by households and for street lighting. Nowadays the gasholder functions as an event location.
In the future hydrogen will be generated for instance via electrolysis on the basis of renewable energies. How this works is explained by the CEP:
Control center historic gas industry
In the 1891 completed building called Messelbau city gas consisting of large amounts of hydrogen was generated. Moreover the gas was made of methane, nitrogen, carbon monoxide, oxygen and other hydrocarbons depending on its regional origin.
The inscriptions on the control center on the first floor of the Messelbau bespeak even today of the former composition of the gas. In West Berlin city gas was mostly favored for reasons of secure energy supply until the German reunification. Only in 1996 the last consumers were changed to natural gas. Today city gas is replaced by natural gas in Germany due to its low environmental impact and low price. City gas was generated by degassing hard coal in exclusion of air in retorts or chamber kilns.
Until 1892/93 a greenhouse could be found on the campus to grow pineapples. It used the waste heat of the industrial process. Hydrogen economy was here in full bloom.
Small wind power
On the EUREF-Campus a vertical small wind engine performs at a nominal capacity of 1 kW, meaning that heavy wind could for example fully charge one BMW i3 in one day (battery 21,6 kWh). Altogether there are six installed vertical small wind engines in helix form on-site. The generated power is consumed in the micro-smart-grid on the campus. In the future this could also be used for producing hydrogen. An electrolyzer splitting water via electricity into its elements would be connected to the system. To make hydrogen a brick of the energy and mobility transition, it must be generated on a green basis, possibly by renewable energy technologies like small wind engines on the EUREF-Campus.
Besides small wind engines there are also other green electricity producers to be found on the campus like multiple solar panels. Those are located on the Green Garage, the Grey Garage, the Solar Carport and the buildings 6/7. The solar panels contribute distinctively more electricity than the small wind engines and could therefore become together with large scale wind power the cornerstone of a future green hydrogen economy.
Biogas combined heat and power plant
Our combined heat and power plant is a small plant producing electrical energy and heat via the process of cogeneration of power and heat. These types of plants are reckoned to be particularly efficient and can be considered as a smart addition to fluctuating energy sources like the sun and wind. Biogas is used as the basis for its operation. Since 2014, the plant has been expanded noticeably. Reaching its final stage of expansion in 2018, the plant will produce around 12.000 mega-watt-hours per year to supply the surrounding houses. Moreover the generation of renewable electricity is supposed to allow for additional 7.000 mega-watt-hours that are not being consumed on the campus, but fed into the public grid. The plant delivers a great contribution in reaching the energy targets of the German government for 2030/2050 already today on the EUREF-Campus: The share of renewable energies must reach 50 percent of the gross electricity consumption until 2030 and the greenhouse gases must be reduced by 80 to 95 percent until 2050.
If you like, visit additionally or alternatively our Hydrogen Exhibition in Berlin-Schöneberg (EUREF-Campus). More information
Where: Innovation Centre for Mobility and Societal Change, Torgauer Straße 10829 Berlin Schöneberg
For additional information and arrangement of dates contact Enrico Howe: