In the interview worth reading Migration and Urban Planning: "We Can Immigration" in the taz of 14.6.2016, Leggewie refers to the urban Chilean designer Alejandro Aravena, who builds half a house for a few thousand US dollars so that the other half can be designed by the residents themselves. Aravena was recently awarded the Pritzker Prize, the Nobel Prize for architects.
The use of solar energy is an important pillar in the energy mix of the future and for the concrete implementation of the energy transition. At the end of 2019, around 1.8 million solar power systems with an output of 49,873 megawatt peak (MWp) were installed across Germany. With around 45 billion kWh of climate-friendly electricity, these accounted for a share of just under eight percent of German electricity generation. This amount is mathematically sufficient to supply 12.8 million households with electrical energy for a year. The approximately 280,000 turbines installed in NRW had an output of around 5,300 megawatt peak.
Info:
NRW's No. 1 energy state of the future: data, facts and figures
Keywords:
DE-News, Tenant electricity, News Blog NRW, PV, PlusEnergy house/settlement
12:28 min, upload from 06/19/2020; presentation at the Berlin Energy Days 2020.
Keywords:
DE-News, Energy storage, Movies, Movies 11 to 45 Min, Research, News Blog Baden-Württemberg, PV, Hydrogen, eMobility
7:32 min., 2012, Trailer for the documentary about Frei Otto's eco-house in Berlin Tiergarten.
The documentary "Dreaming of a Treehouse" addresses the Ökohaus, an experimental collective housing project in Berlin,
conceived by the famous German architect/engineer Frei Otto.
Interviews with Frei Otto, Christine Kanstinger-Otto, Hermann Kendel, co-architects, planners as well as inhabitants and participatory builders. Commentary by architects Yona Friedman, Anne Lacaton and Jean-Philippe Vassal.
The whole film can be watched as streaming video in HD quality for a rental fee:
Project Info: http://sdg21.eu/db/baumhaeuser-von-frei-otto-in-berlin-tiergarten
Keywords:
Stakeholders, Building materials / Construction, Greening / climate adaptation, DE-News, Movies, Movies > 45 Min, Movies 4 to 10 Min, News Blog Berlin, Planning offices, Housing projects
"The building sector is responsible for around one third of all CO2-emissions in Germany. To achieve a climate-neutral building stock by 2050, the energy refurbishment of existing buildings alone is not enough," explains Michael Zahn, CEO of Deutsche Wohnen SE. "We also need to exploit the technological possibilities for CO2-Reduction to the fullest and open up the opportunity for our tenants to live sustainably."
Together with GETEC, Deutsche Wohnen will in future jointly develop offers for green tenant electricity and electric mobility for its tenants. As an important contribution to the energy transition in the big city, the companies want to promote decentralised power supply by means of photovoltaic (PV) systems in the neighbourhoods. Around 1,000 PV systems will be installed on the roofs of Deutsche Wohnen's properties - the first 20 will go into operation this year. The electricity generated by these systems will be directly available to the tenants in the buildings as green tenant electricity, without first being fed through the grid. This conserves resources and relieves the strain on electricity grids. Even small solar systems with a peak output of 38 kilowattsPeak (kWP) save around 14 tonnes of CO2 in. In Deutsche Wohnen's portfolios, the savings potential thus amounts to a total of around 14,000 tonnes of CO2 annually.
"Deutsche Wohnen has been investing in improving the carbon footprint of its properties for years. The expansion of photovoltaics is the next logical step towards climate-neutral living and working. We will invest around 50 million euros in this over the next ten years," says Michael Zahn.
In the future, the decentrally generated electricity will also be used to charge e-vehicles in the respective residential complexes, among other things. Together with GETEC, Deutsche Wohnen intends to set up more than 2,000 charging points across Germany. Planning for the first joint charging infrastructure projects has already begun. The investment volume amounts to approximately 25 million euros.
"Together with Deutsche Wohnen, we are creating needs-based electric charging infrastructure in neighbourhoods across Germany, sending a clear signal for the mobility turnaround," says Dr Karl Gerhold, managing partner of GETEC Energie Holding GmbH, underlining the aims of the collaboration.
Deutsche Wohnen and GETEC will establish the joint company SYNVIA mobility GmbH for the construction and operation of electric charging stations. The electricity generated in the districts will be marketed by the new joint company SYNVIA energy GmbH.
Source: Deutsche Wohnen PM dated 29 September 2020
Keywords:
Stock, DE-News, Renewable, News Blog Berlin, PV, eMobility
