Report (2020) about the first eco-settlement in Saarland
Published
5:18 min, First broadcast: 11/19/2020, Available until 11/20/2021.
Wir im Saarland - The Magazine ∙ SR Television
"A quarter of a century ago, Bernd Janes looked for like-minded comrades-in-arms and founded an ecologically oriented housing estate on the outskirts of Kohlhof. At first, the new neighbors were eyed critically by the surrounding community. No wonder, because the houses were built in wood, four families shared one house and the gardens were not separated from each other by fences, but merged seamlessly into each other."
Today, Federal Minister of Economics and Climate Protection Robert Habeck presented the second PV-The aim is to significantly accelerate the expansion of solar energy in Germany. The goal is to significantly accelerate the expansion of solar energy in Germany. To this end, the strategy identifies measures in a total of eleven fields of action. The spectrum ranges from measures in the area of energy policy to the topics of securing skilled labour, industrial value creation in Europe and technology development. This was preceded by a first photovoltaic summit in March 2023. Since March, the PV strategy has been consulted. More than 600 comments were received.
Federal Minister for Economic Affairs and Climate Protection Robert Habeck says: "Photovoltaics is one of the cheapest energy sources of all and is one of the most important sources of electricity generation of the future. By 2030, the share of renewable energies in gross electricity consumption is to be 80 percent. Photovoltaics, with an installed capacity of 215 gigawatts by 2030, is expected to make an important contribution here. This shows that we have a lot of work ahead of us. But we can see that the expansion is picking up. Last year it was over 7 gigawatts. The interim target for the current year is 9 gigawatts. The chances that we will reach this interim target are good: in the first quarter of 2023, just under 2.7 gigawatts were already added. GW newly installed.
With the strategy presented today, we want to significantly accelerate the expansion and remove all the brakes that have prevented a faster pace of expansion so far".
In recent months, the German government has already launched numerous measures to accelerate the expansion of renewable energies, including increasing the tendering volumes, adjusting the remuneration rates and removing regulatory hurdles. The PV-strategy now focuses on remaining barriers.
Fields of action of the photovoltaic strategy:
Ground-mounted systemsFrom 2026 onwards, we will need an addition of 11 GW
per year. For this, sufficient land must be available and planning and approval procedures must become faster. In addition, innovative concepts such as agri-PV to prevent land competition.
Roof systems: With the PV-strategy, we want to give a boost to the segment of larger building installations in the commercial sector. Also in the area of small PV-The strategy contains improvements and simplifications for the use of the plants. The target is 11 GW Additions per year from 2026.
Tenant electricity and communal building supplyToday, the roofs of apartment buildings are used far too little for PV used. To change this, we will introduce a new model for communal building supply. This will enable the on-site use of solar power for all parties in the building. In addition, we are improving the existing tenant electricity model.
Balcony-PV: We want balconyPV can be easily used by everyone. In addition, bureaucracy should be eliminated and the systems should be able to be connected quickly.
Mains connectionsWe want to significantly accelerate and simplify the grid connection of both ground-mounted and roof-mounted systems. For larger roof systems we will e.g. simplify the certification process.
AcceptanceWe want to strengthen participation. Topics are here a.o. the financial participation of municipalities and simple rules for citizen energy.
Tax lawThe removal of tax obstacles is important for the ramp-up of the PV. Whether e.g. in the case of trade tax or inheritance tax, the BMWK is committed to further improvements for the PV on.
IndustryWe want to build up industrial production capacities for the entire value chain in Germany and Europe, so that the rising demand can be largely met from our own resources.
can be covered by domestic production.
ProfessionalsWe want to increase the number of skilled workers for production,
Planning, installation and maintenance of PV-plants, a.o. through an increase in training offers and advanced training.
Technology developmentWe want to advance technology development along the entire value chain, a.o. within the framework of the upcoming 8th Energy Research Programme.
European frameworkEU processes and requirements increasingly determine the legal framework in the energy sector. We want to accelerate the PV-expansion at the European level, for example with the EU-strategy for solar energy and within the framework of the "Fit for 55" package.
The implementation of the strategy will start immediately after its publication. Some of the measures are to be implemented within the framework of the sog. "Solar Package I" to the cabinet before the summer break. Further measures, some of which require more preparatory work, are to follow in a second solar package. Even during the legislative work, the BMWK open to suggestions: the e-mail address set up for this purpose will remain pv-strategie@bmwk.bund.de also continues to be active.
Stadtwerke Herne is planning to build a climate-friendly and car-free housing estate with an innovative energy concept in Sodingen: seven detached single-family homes are being built in Baueracker, which will be largely self-sufficient in terms of energy. The building permit is expected before the end of this year. The groundbreaking ceremony is scheduled for early 2018. The first families are expected to move in in February 2019.
Whether heating, electricity or hot water - the houses are to produce almost all the energy they need themselves from renewable sources. A large photovoltaic system on each roof and a battery storage system are the basis for this. Geothermal and air-source heat pumps are combined with these. The result is a variety of energy concepts developed by Smart-Tec, the municipal utility's heating service. Smart-Tec also supplies the technology and ensures smooth operation.
PV power: 70 kWp
At the heart of the project is a new type of electricity storage, the so-called redox flow battery. It has extremely low energy losses and can be recharged almost indefinitely. "This concept is unique in Germany," knows Stephan Becker, who is responsible for the project at the municipal utility. This is why the construction project also successfully qualified for the "EnergyEnvironmentEconomy.NRW" lead market competition organized by the state and the EU. Fraunhofer UMSICHT is providing scientific support.
In addition to the energy concept, car-free living is also a special feature in Herne. Cars are parked outside the settlement in a solar garage. "This makes the settlement safe and child-friendly, and there is also nothing to prevent the purchase of an electric car," Becker continues.
The detached single-family homes have a living area of around 120 square meters. The plot size starts at 215 square meters. Building-willing can announce themselves already now under telephone 02323/592-315 or autark-wohnen@stadtwerke-herne.de apply, as a large response is expected. Detailed information will be available after the summer holidays.
On the insulation market, so-called "natural" insulation materials such as wood wool, hemp, cork, granulates and co. are still niche products. However, they are on the rise throughout Europe, at least from the architects' point of view: According to a survey of 1,600 European planners, the use of natural insulation materials is likely to increase in seven out of eight countries. The future prospects for mineral wool, the market leader, are also favourable in this country. According to the architects' forecast, other insulation materials will have a much harder time.
Natural insulation materials are expected to grow strongly in Germany and most countries - which is certainly related to the trend towards sustainable building, which was also highlighted as a strong development by architects in the same study. Mineral wool is also seen as an insulating material with a future in Germany and most countries - this is certainly also related to the market position of the large mineral wool manufacturers in Europe. PUR/PIR systems, on the other hand, are somewhat weaker - in Germany, planners even expect a slight decline in demand.
In most countries, the architects surveyed do not believe that insulation with EPS/XPs currently has strong growth potential - despite the relatively long service life of polystyrene-based core insulation, which has made these insulating materials so economical and popular. The image problems of the materials, which have come under fire because of fire hazards and also do not seem to fit in well with the current trend towards sustainable building with their somewhat anachronistic "Styrofoam" image, are too high.
Exceptions here, however, are Poland and the Netherlands, where plastic-based insulation is still popular. The EPS industry has also managed to gain ground there in terms of sustainability: It is certainly no coincidence that the first large European recycling plants for EPS insulation materials were launched in the Netherlands.
With only a few weeks left until the Habitat III conference, DDD #18 on "Cities" has now published 22 insightful articles around the topic of urbanisation. Authors from all over the world have told us about urban life in Africa, Asia, Middle East and the Americas. With a close eye on the conference's outcome, they directed the attention towards inspiring initiatives that aim for a positive change.
With completion of DDD's issue #18, we are happy to provide the entire issue as an eBook.
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Stadtwerke Herne is planning to build a climate-friendly and car-free housing estate with an innovative energy concept in Sodingen: seven detached single-family homes are being built in Baueracker, which will be largely self-sufficient in terms of energy. The building permit is expected before the end of this year. The groundbreaking ceremony is scheduled for early 2018. The first families are expected to move in in February 2019.
