12:45 Date: 05/26/2016
Project Info: http://sdg21.eu/db/8-house-von-big-in-kopenhagen-dk
In 2017, from April to December, the following profiles of sustainable settlements were accessed most frequently in the sdg21 web database:
| Settlement | Page- calls |
||
| 01. |  Sustainable model district Vauban |
782 | |
| 02. |  Tree houses by Frei Otto in Berlin-Tiergarten |
641 | |
| 03. |  Community housing estate "Alte Gärtnerei in Kiel |
610 | |
| 04. |  Clay housing estate Schöneiche |
599 | |
| 05. |  Hundertwasser House "Waldspirale |
539 | |
| 06. |  Hanover-Kronsberg |
495 | |
| 07. |  Ecological settlement Bielefeld-Waldquelle |
473 | |
| 08. |  PlusEnergyHouse "Heliotrope |
453 | |
| 09. |  Düsseldorf-Unterbach |
433 | |
| 10. |  French Quarter Tübingen |
429 | |
| 11. | Signal box 60 Cologne-Nippes | 391 | |
| 12. | Energy self-sufficient solar house | 384 | |
| 13. | Cologne-Blumenberg eco-settlement | 330 | |
| 14. | Eco-settlement "Frasenweg | 289 | |
| 15. | Eco-settlement Allermöhe | 288 | |
| 16. | S.U.S.I. | 261 | |
| 17. | Moor meadow settlement Kiel-Hassee | 245 | |
| 18. | "Laher Wiesen" Hanover | 215 | |
| 19. | Anders Wohnen eG Bremen | 210 | |
| 20. | Munich-Riem Trade Fair City | 210 | |
| 21. | Ecological settlement Geroldsäcker | 210 | |
| 22. | Eco-settlement Friedrichsdorf | 199 | |
| 23. | Building Biology Settlement "Schafbrühl | 191 | |
| 24. | Farmsen trotting course | 187 | |
| 25. | Gewerbehof "Prisma" Nuremberg | 186 |
Keywords:
sdg21 news
With funding from the federal support programme "Unternehmen Revier", the Factor X agency of the development company has developed an internet-based tool for the simple calculation of the resource efficiency of one's own building project. The tool has now undergone final testing and will be available online from September.
With the Factor X construction method, the entire life cycle of buildings is considered, resulting in many new opportunities for saving raw materials and thus for climate- and resource-saving construction. Until now, the resource efficiency of buildings has been calculated using a spreadsheet as part of the Factor X Agency's construction consultancy service. This is now to be made even easier by the new online tool, which will be accessible to the public via the Internet. The database-based tool was realised with funding from the federal support programme "Unternehmen Revier".
At the invitation of the Fakor X agency, the almost completed online tool was subjected to a final test. Fifteen testers from science, administration and building practice checked the user guidance and calculated test buildings. The concept was praised by all testers. A few suggestions for improvement are still being incorporated into the programming before the online tool is released in September and will then be available.
Initiator Klaus Dosch, head of the Factor X Agency of the indeland development company, is enthusiastic: "Here we are setting up a tool for climate- and resource-friendly construction that does not yet exist in Europe. Even non-specialists interested in construction are supported by our tool in such a way that they can very easily calculate the resource efficiency of their building project. We have created a link to the building materials database of the Federal Institute for Research on Building, Urban Affairs and Spatial Development (BBSR). For the first time, we are making the construction life cycle understandable for laypeople."
Improving resource efficiency in the construction of housing estates is an essential part of the strategy of the indeland 2030 master plan of the development company indeland GmbH. A number of strategies lead to the achievement of these goals and have been tested in the Faktor X settlements in Eschweiler and Inden. With the development of strategies and projects for sustainable building and living, indeland has long since taken on a lighthouse function far beyond the region. Together with the exhibition already opened in May, the tool is intended to contribute to the illustration and dissemination of the Factor X strategies.
There are five Factor X settlements listed in the sdg21 web database:
www.faktor-x.siedlungen.eu
Keywords:
Building materials / Construction, DE-News, Faktor X / ResScore, Wood construction, Climate protection, NaWaRohs, News Blog NRW, Resource efficiency, Settlements, Tools, Certification & Labels, Life cycle assessment, Ecology
Good news for the PV industry: The solar cap will be abolished and solar expansion will be further promoted. The photovoltaic potential in Germany is enormous - especially when it comes to using roof space on new buildings. The new LichtBlick SolarCheck now shows in detail how well the 14 largest German cities are currently exploiting this potential. Enormous differences are revealed: While Nuremberg (49.1%) and Hanover (46.8%) exploit almost half of their potential, Munich and Düsseldorf do not even reach the 10 percent hurdle. The absolute taillight: the Hanseatic city of Hamburg with only 7.2 percent - one more reason for the solar obligation for new buildings planned by the mayor's office.
To calculate the solar potential of the individual cities, the newly built roof areas were put in relation to the newly installed photovoltaic systems in the respective cities in 2018 (most recent figures). The result: the PV potential on roofs is barely exploited in most metropolitan regions in Germany. Yet every new roof without a solar installation is a wasted opportunity for climate protection and a consumer-oriented power supply. The vast majority of people in Germany want solar power from their roofs*.1
In view of the sobering results of the SolarCheck, Ralph Kampwirth, Head of Corporate Communications at LichtBlick, said: "We must finally bring the energy turnaround to the big cities - and the best way to do that is with solar power from the roof. Discussions about distance regulations for wind power or the use of agricultural land for PV plants show that the responsibility should not only lie with the rural population."
Converted to German households (average consumption 3,000 kWh), the possibilities of the individual cities become apparent: If Munich had fully exploited the potential of the new building roof areas, you could have supplied more than 10,000 households with solar power with the new solar areas built in 2018 alone, Hamburg around 11,500 households, in Berlin it would be 16,200 households." Especially in the megacities, only a small fraction of this is developed, as the SolarCheck shows.
About the research method: The market research company Statista determined the number of newly constructed residential and commercial buildings in 2018 for the 14 German cities with more than 500,000 inhabitants on the basis of data from the State Offices for Statistics and calculated the respective roof areas using scientifically based conversion factors.
Background information on the SolarCheck can be found here:
www.lichtblick.de/.../2020_Hintergrund_Solarcheck2020.pdf (2.83 MB)
*1 representative survey by YouGov in January 2020, see: lichtblick.de/press
Keywords:
DE-News, Renewable, Climate protection, Communities, New books and studies, News Blog Bavaria, News Blog Lower Saxony, PV, PlusEnergy house/settlement, Transition Town
At a hydroelectric power plant operated by the energy company Energiedienst in Grenzach-Wylen, the production of green hydrogen has been running successfully for four months. The project produces 500 kilograms of hydrogen per day.
Hydrogen from hydropower: successful start for one of the largest power-to-gas plants in Germany to date. This is reported by the Centre for Solar Energy and Hydrogen Research Baden-Württemberg (ZSW). The megawatt plant has been in operation for four months in April 2020 and is functioning reliably. A research electrolyser connected to it is also running successfully. The ZSW is coordinating the project. The operator of the commercial plant is the energy supplier Energiedienst AG.
The power-to-gas plant with an electrical connected load of one megawatt produces renewable hydrogen using electricity from the Rhine hydroelectric power plant in Wyhlen. Since it is not necessary to use the public electricity grid, grid fees and the EEG surcharge do not apply. In addition, high full load hours can be achieved because the hydropower is available practically around the clock. This further improves the economic efficiency and enables extensive operating experience to be gained quickly.
He said the plant has been running regularly since early December 2019 and has had 1,850 hours of operation since then. Previously, it was in trial operation. The monitoring system set up by the ZSW, which measures all essential components and subsystems, functions perfectly. The plant operates fully automatically in 24-hour operation both at full load and in various partial load conditions.
The ZSW monitors operation with the help of remote data transmission to Stuttgart and automated data evaluation. The overall efficiency of electricity to high-purity hydrogen compressed to 300 bar is currently up to 66 percent in relation to the calorific value of the gas. In addition, the researchers are investigating ageing effects and deriving potential improvements from the data.
So far, the plant has filled 62 trailers with hydrogen suitable for fuel cells. Each of these transportable containers holds around 300 kilograms. The plant can produce up to 500 kilograms of hydrogen per day. This is enough for an average daily mileage of more than 1,000 fuel cell cars.
The research project docked to the commercial plant is also progressing positively. In a research plant, the scientists are testing improved electrolysis blocks with a maximum output of 300 kilowatts in parallel operation with the commercial plant. They should further reduce the price of hydrogen. But companies could also test and optimize components there.
Last year, the ZSW and its research partners already achieved an initial success during the test operation of the plant: with new electrode coatings, the researchers achieved 20 percent more power density compared to the electrolysis blocks of the industrial plant section. This means that less volume and material are required for the same output.
Since the investment costs are also based on the construction volume and the electrolysis units account for the largest share of costs in the conversion of renewable electricity at around 40 percent, progress in this area is automatically reflected in the price of hydrogen. For manufacturers of electrolysis plants, development is therefore an important factor for further cost reduction. The long-term goal of the ZSW researchers and Energiedienst engineers is to roughly halve the current production costs of electricity-based hydrogen.
The state of Baden-Württemberg supports the Lighthouse project with a total of 4.5 million euros. In 2019, a project based on this was selected by the Federal Ministry of Economics and Technology as one of the winners of the first round of the "Reallabore der Energiewende" ideas competition. A total of twelve partners are on board for this major project.
14.4.2020 | Source: ZSW
See also:
http://sdg21.eu/blog/gruener-wasserstoff-aus-wyhlen-behoerden-geben-gruenes-licht
Keywords:
Energy storage, Research, News Blog Baden-Württemberg, Power-to-Gas, Hydrogen
