The world's largest solid wood building is being constructed in London
Published
Dalston Lane at INFORMATIONSDIENST HOLZ
121 flats on 12,500 m² of floor space and a further 3,500 m² of commercial space are currently being built in London, Dalston Lane. This is currently the largest solid timber building in the world. 3,500 m³ of cross-laminated timber are being used across nine storeys. Architect: Andrew Waugh.
Whether it's financial incentives for moving to smaller flats, mandatory bicycle parking spaces or public tenders based on social and environmental criteria - there are a variety of ways to reduce the consumption of space, energy and materials in municipalities. This is shown in a study by the Wuppertal Institute for Climate, Environment and Energy entitled "Kommunale Suffizienzpolitik. Strategic perspectives for cities, federal states and the federal government" commissioned by the Bund für Umwelt und Naturschutz Deutschland (BUND). Using concrete examples, the study presents the instruments available to municipalities and federal and state governments to create incentives for resource-conserving living. Measures are recommended for the areas of housing, mobility and public tenders.
Christine Wenzl, BUND sustainability expert: "Every year, an area the size of Frankfurt is lost in Germany for new residential, commercial and transport buildings. For years, the number of cars, their performance and the distance travelled by car have been increasing. Cities are growing into the surrounding countryside, biodiversity is dwindling and the high energy demand is destroying climate protection efforts. The study proves: There is enormous potential to turn things around at the municipal level and significantly reduce resource consumption."
In terms of housing, municipalities could, for example, take advantage of the sometimes considerable vacancy of offices and support their conversion into flats. Promoting cooperative housing with shared living, working and communal spaces would also contribute to resource conservation, as examples in the study showed. In order to strengthen cycling as well as public transport, state governments could - as happened in Lower Saxony - among other things change the building code so that car parking spaces are no longer required in new buildings. Instead, the federal states could make parking spaces for bicycles mandatory.
Often, the competition among municipalities for purchasing power, inhabitants and commercial revenues stands in the way of resource-saving development. "Even in regions with stagnating or even shrinking populations, new commercial and residential areas and transport routes continue to be built. This is where the federal government can take countermeasures, for example by imposing a moratorium on land consumption," said study author Michael Kopatz of the Wuppertal Institute. A nationwide restriction on new construction would enable municipalities to turn to existing alternatives without having to fear competitive disadvantages.
More information
Study "Municipal Sufficiency Policy. Strategic perspectives for cities, federal states and the federal government". download (PDF, 1 MB)
Further information on the study as well as graphics for download can be found at www.bund.net/stadtlandglueck
Six to ten gigawatts of photovoltaic capacity could be installed on Berlin buildings. More than enough to cover 25 percent of Berlin's electricity supply with solar energy, as envisaged in the plan for Berlin. But the current pace of expansion is decidedly too slow. The Solarcity Berlin master plan envisions producing a quarter of Berlin's electricity consumption with photovoltaics. This goal is to be achieved by 2030. Currently, Berlin's solar systems generate just under half a percent of the energy required in the city. Scientists at the Berlin University of Applied Sciences (HTW Berlin) have now conducted a solar potential study to show for the first time which buildings are suitable for solar installations and what restrictions must be expected.
Today, almost everyone has a mobile phone, which was different 20 years ago. Sometimes, contrary to forecasts, technological change can happen very quickly. Scientists say that in 20 years' time, one in two of us will be driving an electric car.
Federal Ministry for Climate Protection announces comprehensive emergency programme
Introduction
After a significant decline in the previous year, greenhouse gas emissions in Germany are on the rise again. Thus, around 762 million tonnes of greenhouse gases were released in 2021 - a good 33 million tonnes or 4.5 percent more than in 2020. Overall, emissions in Germany have thus fallen by 38.7 percent since 1990. The increase in the last year is particularly noticeable in the energy sector: This shows an increase of 27 million tonnes CO2-equivalents, as increased demand for electricity, lower electricity generation from renewable energies and the higher gas price led to increased use of coal for electricity generation. Electricity generation from renewables fell by seven per cent, mainly due to poor wind conditions. In the transport and building sectors, emissions were above the annual ceilings set by the Federal Climate Protection Act. This is shown by the latest calculations of the Federal Environment Agency (UBA), which are based on the specifications of the Federal Climate Protection Act and the EU-Renewable Energy Directive (RED) were presented today.
Climate State Secretary Patrick GraichenThe increase in greenhouse gas emissions has unfortunately become apparent. The Federal Government will now quickly counteract this with an immediate climate protection programme. The key is a much faster pace in the expansion of renewable energies. We must manage to install three times as much capacity as before in order to increase the share of renewables in electricity generation to 80% by 2030. There must be no more of the kind of stalemate we have seen in recent years. The Russian war of aggression on Ukraine has also made it dramatically clear to us how closely security and energy supply are linked. We can no longer afford to ignore this. That is why we must now quickly remove every stumbling block on the path to more wind and solar power. The faster shift away from fossil energies must encompass all sectors - from industrial production and buildings to mobility and agriculture. It is crucial to maintain the social balance in the process."
UBA-President Dirk Messner: "Almost half of the 2020 reduction in greenhouse gas emissions has already been lost. Our figures clearly show that the federal government's targets must be addressed as quickly as possible. We need to build more solar and wind power plants quickly. We must convert our buildings to heat pumps and stop installing oil and gas heating systems as soon as possible. We can also achieve a lot with our houses by saving energy, especially by making them more energy-efficient. This will also help to reduce our energy dependence on Russia. Each and every one of us can do something here that also helps the climate: heat a little less, leave the car parked more often or, if it is necessary, drive more slowly."
Current emission data in detail
Since 1990, emissions in Germany have fallen by 38.7 percent. The target for 2030 is a reduction of 65 percent. In 2021, there were increases in emissions compared to the previous year in almost all sectors. The available data show that since 2010, the energy transition in particular has contributed to the reduction of emissions. All other significant sectors have more or less stagnated since 2010.
In the sector Energy industry are with around 27 m. tonnes - this corresponds to 12.4 per cent more than in 2020. With around 247 tonnes, the m. Tons CO2-equivalents, however, emissions were still a good 11 m. There is no annual emission quantity for 2021 in the Federal Climate Protection Act for the energy sector. Emissions from hard coal and lignite-fired power generation increased particularly significantly due to the increased use of coal. The use of lower-emission natural gas, on the other hand, decreased in the second half of the year due to the significant increase in gas prices. The main reason for the increased use of fossil energy sources for electricity generation is the 17.5 TWh Significantly reduced electricity generation from renewable energies, in particular the lower wind power generation, and a 13.5 TWh increased gross electricity consumption.
At Traffic in 2021, around 148 m. Tons CO2-equivalents are emitted. This means that greenhouse gas emissions from this sector are both 1.2 per cent above the 2020 value and around 3 m. tonnes above the annual emission quantity of 145 tonnes permitted in the Federal Climate Protection Act for 2021. m. Tons CO2-equivalents. One reason for this is road freight traffic, which has risen again on the motorways to a level slightly above that of 2019. The CAR-In contrast, the level of traffic is still lower than before the Corona pandemic (2019), which is reflected in fuel sales figures and data from counting stations on motorways and trunk roads.
In the sector Industry emissions rose by a good 9 % compared to the previous year. m. Tons CO2-equivalents increased (plus 5.5 per cent). With around 181 m. Tons CO2-equivalents, they were almost at the 2019 level again, but just below the annual emission quantity of 182 m. Tons CO2- equivalents. Catching-up economic effects in the wake of the Corona crisis and increased use of fossil fuels play an important role here. The most significant percentage increase was in the steel industry, where crude steel production rose by around 12 percent. In the manufacturing industry (energy-related share), emissions increased by around seven m. Tons CO2-equivalents respectively 6.4 per cent.
At Buildings In 2021, there was an emission reduction of just under 4 m. Tons CO2-equivalents (minus 3.3 per cent) to around 115 m. Tons CO2-equivalents. Despite this reduction in emissions, the building sector, as in the previous year, exceeds the permitted annual emission quantity according to the Federal Climate Protection Act, which is 113 m. Tons CO2-equivalents. The reduction in emissions is mainly due to a special effect of significantly reduced heating oil purchases. Heating oil stocks were already increased extensively in 2019 and 2020 due to the favourable prices and in anticipation of the Fuel Emissions Trading Act. Natural gas consumption, on the other hand, increased due to the weather.
In the sector Agriculture Greenhouse gas emissions decreased by a good 1.2 m. Tons CO2-equivalents (minus 2.0 per cent) to 61 m. Tons CO2-equivalents. The sector thus remains significantly below the annual emission level of 68 m. Tons CO2-equivalents. The decline in animal numbers continues. Cattle numbers fell by 2.3 percent, pig numbers by 9.2 percent. As a result, there was less manure, which is why the emissions associated with fertilisation also fell (-4.0 percent compared to 2020). However, the significant undercutting of the set annual emission quantity is mainly due to methodological improvements in the calculation of emissions.
The emissions of the Waste sector fell by around 4.3 per cent compared to the previous year to a good eight per cent. m. Tons CO2-equivalents. This means that the waste sector once again remains below the annual emission level of nine m. Tons CO2-equivalents. The trend is essentially determined by the decreasing emissions from landfilling as a result of the ban on landfilling organic waste.
Further procedure under the Federal Climate Protection Act
The emission data for the year 2021 will now be reviewed by the Expert Council on Climate Issues, as provided for in the law. The expert council submits an assessment of the data within one month. After that, according to the law, the respective responsible ministries have three months to submit an emergency programme containing proposals for measures to bring the building sector and transport sector onto the intended target path in the coming years. However, the federal government is already working on an emergency climate protection programme that is intended to meet these requirements as far as possible.
Dirk Messner: "In order to achieve the German government's goals by 2030, six percent of emissions must now be reduced per year. Since 2010, the average has not even been two percent. To achieve this, Germany now needs a joint energy effort. Together, we must put all our energy into making ourselves independent of Russian energy and protecting our climate.
Current data on renewable energies
As early as 2020, the project, which was launched as part of the EU-Renewable Energies Directive (Renewable Energy DirectiveRED), Germany's binding target of 18 percent of gross final energy consumption was exceeded with 19.3 %. In 2021, the gross final energy consumption from renewable energies in the electricity, heating and transport sectors rose according to the calculation specifications of the RED further slightly to 483 Billion kWh an. This corresponded to a share of 19.7 per cent of total gross final energy consumption.
The main reason was that more renewable energies were used for heating and cooling due to the cold winter. For this reason - and because heating oil sales, which are decisive for the calculation of the share, also declined due to high inventories and rising oil prices - the share of renewable heat increased significantly from 15.3 to 16.5 percent in 2021. The heating and cooling sector accounts for more than half of Germany's total gross final energy consumption.
Electricity generation from renewable energies declined by seven percent in 2021 due to a comparatively poor wind year. At the same time, the expansion of onshore wind energy plants stagnated in recent years. The renewable share of gross electricity consumption fell accordingly from 45.2 percent in 2020 to 41.1 percent. Electricity consumption represents about a quarter of Germany's total gross final energy consumption. For the European monitoring according to RED the real decline in renewable electricity generation is, however, mitigated by a normalisation rule for compensating for weather effects over several years.
In the transport sector, the share of renewable energies in total final energy consumption fell from 7.6 percent in the previous year to 6.8 percent in 2021. This decline can be explained by special carry-over arrangements from earlier years under the greenhouse gas reduction quota and a higher crediting of upstream emission reductions. Transport is responsible for a good quarter of total energy consumption.
These and many other up-to-date and quality-assured data have been published in the background paper "Renewable Energies in Germany - Data on Development in 2021" by the Working Group on Renewable Energies Statistics (AGEE-Stat), which appeared today. The first available data on the use of renewable energies in the electricity, heat and transport sectors are supplemented by calculations on the associated avoided emissions and economic effects.
Further information: The accuracy of the data
The present emission data for the year 2021 represent the best possible calculation at present. They are associated with corresponding uncertainties, in particular due to the limited statistical calculation basis available at this time. The calculations are derived from a system of model calculations and trend updates of the detailed inventories of greenhouse gas emissions for 2020 published in January 2022.
The complete, official and detailed inventory data on greenhouse gas emissions in Germany for the year 2021 is published by the UBA in January 2023 with the transmission to the European Commission.
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