2008 I 2009 Sustainability Report - Econsense

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The jointly developed concepts will be tested and evaluated under real-world conditions during the next four years in the model regions Göppingen and Freiamt/Ettenheim. For this purpose, a total of 1,000 commercial and private customers will be hooked up to a "Network of the Future". Based on this network, it will be possible to analyse various technical solutions and market models for the intelligent networking of electricity consumers, decentral electricity storage units and generators. The centrepiece of this project is the development of a marketplace for the coordination of decentral energy supply, energy demand and new services – an approach that creates benefits for all parties: consumers can "choose" their electricity price. Customers who have unit-type heatand-power systems can, for example, operate them when the remuneration fees are at their highest. Energy companies can operate their networks and power plants more efficiently and in a more environment-friendly way. But that is not all. This process of intelligent integration will continue in the households of our customers, where the electrical appliances will communicate with the central system and will be coupled to a dynamic tariff, which means they will be able to "recognise" the times during which electricity is cheapest. 28 A further goal of the MeRegio project is the development of an environmental compatibility certificate. All the project partners are working together to prepare a corresponding document and to perform sample certification processes using the model regions as examples. Moreover, a catalogue of measures is being drawn up to inform other interested regions about the options for improving their energy efficiency. In future, the idea is that this certificate will permit easy comparability between different regions in terms of the greenhouse gas emissions from their energy supply facilities. The overall findings of the MeRegio project, which will remain in operation until 2012, will provide valuable insights and information on the requirements for the energy industry of the future and pave the way for the first practical steps in the development of an intelligent network ("smart grid"). www.enbw.com › MeRegio ‹ Innovative cars for MeRegio mobility The MeRegioMobil research project is an extension of the MeRegio model trial and integrates electromobiles as mobile storage units in the overall process of decentral generation, storage and consumption of electrical energy. This project, which is being promoted by the German Ministry of Economic Affairs as part of the "E-Energy" competition, will investigate various options for hooking up batteries by connecting charging stations to building energy management systems. This process involves intelligent charging stations that are compatible with the household network and that can be used both for charging and for feeding electricity back into the system. The car would then charge its batteries at night when the demand for electricity is low. The next morning, the driver will have a fully charged vehicle at his disposal; alternatively, the vehicle can feed electricity back into the household network in the event of power shortages. What is especially innovative about this process is the way it interconnects intelligent household appliances and electric vehicles in common networks in order to balance out load fluctuations. In a new demonstration lab, the researchers will be able to simulate the complex interrelationships associated with the integration of electric vehicles in an energy system and to visualise these processes for customers. Alongside the development of intelligent charging stations, other focal points of the project, which is scheduled to run until 2011, include the creation and testing of public infrastructures as well as the preparation of suitable billing systems which will be tested in a regional field trial. The use of intelligent charging stations and "charging pumps" is also part of the "Model Region Stuttgart" research project. This will allow the generation of synergies between the two projects, as it will be possible to directly implement the results of the development process and test the concepts in practice.
Stuttgart – a model region for "electromobility" As part of the German government's "Economic Stimulus Package II", Stuttgart was chosen as a model region for electromobility together with 7 other regions. The focus is on the testing and timely market launch of electric vehicles. The key themes of the Stuttgart project, which is scheduled to run until 2011, are intermodal mobility and public awareness. Mobility is only sustainable if it can be provided cost-efficiently, is environmentfriendly and suitable for widespread use. Various measures are being taken within the framework of the project to ensure that as many people as possible profit from "electromobility". They include the provision of a large number of the different available vehicle types, a wide range of charging options within the city boundaries and a common communication portal. EnBW will make a total of 500 electrically driven two-wheelers (so-called "e-scooters") from different manufacturers available to the local people. A further 200 e-rollers are to be used in municipal mobility projects within the model region. All in all, 700 intelligent charging points are planned for the project and will be located on public roads, in multi-storey carparks and parking lots as well as on company premises and in private areas. The charging points, most of which are produced by project partner Bosch, will be technically equipped by EnBW and installed in a close-knit network. In order to set the public mood for this innovative topic as early as possible, EnBW will launch an "advance trial" comprising the first 50 scooters and 20 charging stations. These test scooters will be equipped to serve as "labs on wheels", providing insights into the mobility habits of users during the trial phase. The charging pumps will be installed at underground stations, "Call a Bike" points or railway stations. At these central e-hubs, people will be able to "fill up" not just cars but also e-scooters and pedelecs (electrically driven bicycles). These network hubs will be a key element in the spread of electromobility. A further module in the system is the development and testing of an "intermodal e-mobility portal", via which interested parties and users can obtain information on all issues relating to electro-mobility. Today, with the "Model Region Stuttgart" and the related "MeRegio" and "MeRegioMobil" sister projects, EnBW is already taking the first targeted steps on the road to sustainable mobility. Microalgae for CO 2-fixation Reducing CO 2 emissions is one way of containing global warming. Another option is to store CO 2 that has already been produced or to bind it using plants. In March <strong>2008</strong>, EnBW and Subitec GmbH in Stuttgart launched a multi-year project to investigate the potential for the fixation of CO 2 from flue gases using microalgae. Around 1.8 kg of CO 2 are bound in 1 kg of microalgae. Moreover, microalgae can produce up to ten times the area-based yield of conventional terrestrial plants. Algae growth is being researched in highperformance new-generation algae bioreactors developed by Subitec in cooperation with the Fraunhofer Institute for Interfacial Engineering and Biotechnology in Stuttgart. The pilot facility in Eutingen im Gäu in the Freudenstadt district processes the CO 2 from a unit-type heat-and-power plant used in an agricultural biogas plant. The aim of EnBW is to investigate the energy profile and economic efficiency of algae production in order to determine the feasibility of the method for the fixation of CO 2 from power plants. The produced algae biomass is in great demand in industry for the extraction of basic substances used in cosmetics, pharmaceuticals and foodstuffs. The remaining biomass can be used to generate energy or as animal feed. The wide range of potential applications means that algae production could well be a financially lucrative activity – particularly in view of the fact that it does not take up any of the farmland needed for food production. Moreover, the project won an award in the <strong>2009</strong> "Germany – Land of Ideas" competition organised by the German government. 29
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Page 33 and 34: joined forces. At the pilot plant,
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2008 I 2009 Sustainability Report - Econsense

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