According to the annual balance sheet of the Federal Association of the German Heating Industry (BDH) presented today, the German market for solar thermal systems has shrunk further by 8 percent to 573,500 square meters of collector area.
There was no initial spark for the heating turnaround in 2018 either. This is the central result of the annual balance sheet of the Federal Association of the German Heating Industry (BDH). Although the manufacturers organised in the BDH were able to achieve an overall increase of 3 percent compared to the previous year with 732,000 heat generators sold. However, this plus resulted exclusively from the still dynamic new construction business. "Last year, around 600,000 appliances were used in the refurbishment of existing buildings. With around 12 million obsolete systems in the portfolio, the current modernisation rate is too low. Politicians must finally provide incentives to mobilise the abundant private capital for climate protection," says BDH President Uwe Glock.
Once again, modern gas condensing technology was the technology most in demand, with 492,500 appliances sold and an increase of 4 percent on the previous year. As in the previous year, heat pumps came second in the sales statistics with 84,000 appliances sold and an increase of 8 percent. This was followed by oil condensing technology with 58,500 appliances and a slight downward trend of 3 percent. The development of biomass-based systems was not satisfactory, with 24,000 units sold and a drop of 9 percent.
In addition to the market figures, the BDH also published the results of its annual multi-moment survey. In total, the 104 companies organised in the BDH generated a worldwide turnover of 15.1 billion euros with around 75,500 employees. 680 million euros were invested by manufacturers in research and development, once again demonstrating the high innovative strength of the heating industry. "The development has mainly taken place in the area of digitalisation. Digitalised and networked heating technology will be one of the defining themes of ISH 2019," says BDH General Manager Andreas Lücke.
Sustainable development in Germany is inconceivable without a resource-efficient construction industry. The new expert recommendation VDI-EE 4802 Sheet 1 explains in a practical way how to apply the concept of resource efficiency in the life cycle of buildings. To this end, it breaks down the tasks and scope for action of the individual players in the construction process. Using examples of increased material, energy and space efficiency, the expert recommendation supports the entire planning process towards a resource-efficient building.
Modern construction must be sustainable, and keep the many different aspects in mind: the use as well as the costs, the consumption of resources and the cultural background. The energy used for new buildings and facilities must be planned precisely, and the subsequent energy requirements must also be calculated in such a way that they can be met with as little input as possible. Last but not least, the construction processes themselves should also be resource-efficient. In Germany, the Resource Efficiency Program (ProgRess) exists for this purpose.
Aim of the expert recommendation VDI-EE 4802 Sheet 1 is to enable those involved in construction to design their building projects in a resource-efficient manner, and in particular to minimise the use of fossil energy raw materials and the emission of greenhouse gases. The aim is to achieve an optimal, contemporary compromise between economic efficiency and sustainability.
Resource efficiency can be planned and measured. The VDI has developed the VDI 4800 series of guidelines which contains basic principles and methodology, strategies and evaluation procedures. The new VDI expert recommendation VDI-EE 4802 Sheet 1 fleshes out the contents of the directive and helps with its application in practice. The expert recommendation is aimed at those responsible in the construction and real estate industry, politics and administration.
VDI-EE 4802 Sheet 1 provides guidance on the determination of resource efficiency, which results from the determination of the quantitative use of resources. In this sheet, the spatial level of a building is considered, primarily for residential and non-residential buildings, as well as temporary buildings. Further sheets of the expert recommendation will deal with resource efficiency in neighbourhoods or cities.
Publisher of the VDI expert recommendation VDI-EE 4802 Sheet 1 "Resource Efficiency in Construction - Buildings" is the VDI Society for Construction and Building Technology (GBG). The expert recommendation was published in March 2021 and can be ordered at a price starting at EUR 110.90 from Beuth Verlag. Online orders can be placed at www.vdi.de/4802 or www.beuth.de possible. VDI members receive a 10 percent discount on all VDI guidelines. VDI guidelines can be ordered in many public display free of charge.
Technical contact:
Dr. Frederike Wittkopp
VDI Society for Construction and Building Technology (GBG)
Phone: +49 211 6214-466
Email: wittkopp@vdi.de
Funding is available for greening facades and roofs and for unsealing on private, public (with the exception of municipal) and commercial properties in the Hannover urban area.
- Facade greening - funding of up to 3,500 euros
- Green roofs - subsidies of up to 10,000 euros
- Unsealing - funding of up to 10,000 euros
Application deadline: from May 2013 until 31.12.2020
On 15 March, the Mayors' Dialogue "Sustainable City" developed impulses for the implementation of the 2030 Agenda for Sustainable Development in German municipalities. The mayors focused on the contributions of municipalities to the United Nations Sustainable Development Goal 11 "Make cities and human settlements inclusive, safe, resilient and sustainable".
The mayors of Augsburg, Bonn, Bottrop, Darmstadt, Delitzsch, Düsseldorf, Erfurt, Essen, Frankfurt am Main, Freiburg, Friedrichshafen, Hanover, Heidelberg, Karlsruhe, Kassel, Constance, Leipzig, Lörrach, Ludwigsburg, Lüneburg, Munich, Münster, Norderstedt, Nuremberg, Osnabrück, Ravensburg, Rheine, Tübingen and Wernigerode have signed the statement so far.
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.
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