Unanimously, on March 21, 2019, members of Berlin's state parliament voted in favor of promoting urban timber construction.
Following in the footsteps of Baden-Württemberg, the state of Berlin has now also decided to focus on wooden buildings in the future with its application "Sustainability in construction: Berlin builds with wood". As part of the Berlin Energy and Climate Protection Programme (BEK), wood as a building material is to be used to a much greater extent from now on and, as a carbon dioxide reservoir, is to make a contribution to climate protection and resource efficiency.
As the largest builder in the city-state, the Berlin Senate is to lead the way in the future and increasingly use wood in state buildings such as schools, kindergartens and residential buildings. In addition, subsidy programs such as those in Baden-Württemberg, Hamburg and Munich should create incentives for private builders. A timber construction cluster is to develop and bundle competencies along the value chain in the long term.
Since April 2018, an amendment to Berlin's state building code has facilitated timber construction for private and public buildings. Load-bearing components of multi-storey buildings can now be made of the natural material without the need for a time-consuming case-by-case assessment.
For new buildings and complete modernisation projects, Berlin will in future apply the Sustainable Building Rating System (NBB) with its defined, transparent standards for sustainability.
In June 2016, the state government adopted a sustainability strategy for NRW. It is the first federal state to commit to implementing the global sustainability goals of the United Nations and has defined a system of targets and indicators for key areas of action.
Here are two of seven focus areas:
Greenhouse gas emissions; target: reduce greenhouse gases by at least 25 per cent by 2020 and by 80 per cent by 2050Environmental strategyBiodiversity strategy
Size of settlement and transport areas; target: limit land use for settlement and transport to an average of five hectares per day by 2020
In future, IT.NRW will present an up-to-date indicator report on sustainability in NRW every two years. The sustainability strategy will be updated every four years.
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.
Solarserver reports on the world's largest solar heating plant, which has been in operation in China since 2016. It consists of parabolic trough collectors.
On the roof of a XuChen factory hall next to the company headquarters, there are 22,000 m2 collector area, a further 71,000 m2 collector area are implemented as ground-mounted systems. Together they deliver an output of 65 MWth. With concentrating collectors, it would thus be the largest solar heating plant of its kind. An even larger one is the Danish Silkeborg plant (110 MWth)which, however, is equipped with a different collector technology.
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