13. Climate-Relevant Emissions

The company discloses the GHG emissions in accordance with the Greenhouse Gas (GHG) Protocol or standards based on it and states the goals it has set itself to reduce emissions, as well as its results thus far.

Energy efficiency and climate protection

HOCHTIEF's core business, construction and mining, is energy and emission intensive. The greatest impacts of our activities are found at the upstream end and the downstream end of the construction value chain. We have committed ourselves to the goal of limiting global warming to not more than 2 degrees Celsius or if possible rather not more than 1.5 degrees Celsius. On the occasion of the 22nd World Climate Conference in 2016, we signed the declaration calling for specific targets to be formulated for individual sectors. HOCHTIEF is an active participant in the dialogue forum "Business Makes Climate Protection", which was initiated in 2017 on behalf of the German Federal Ministry for the Environment, Nature Conservation, Construction and Nuclear Safety, and is involved in a working group on climate friendly supply chains.

In 2018, the non-governmental organization CDP once again honored the HOCHTIEF Group for its contribution to climate protection and the reduction of pollutants. HOCHTIEF achieved a score B (2017: B) in the climate ranking and thus attains management status according to the CDP criteria. Our goals is to improve this rating to an A score.

Climate protection

In order to achieve our climate targets and reduce the production of harmful greenhouse gases, we determine the key figures that include the energy consumption and emissions of the main corporate units. These data are mainly based on substance-specific cost elements and on the calculation of average prices.

The key figures listed in the Group Report on page 140 onwards relate exclusively to materials and services purchased by the HOCHTIEF Group. In the HOCHTIEF Asia Pacific division, the key figures comply with the statutory requirements of the National Greenhouse and Energy Reporting Act 2007.

Our goal in data collection is to achieve a uniform level of detail across divisional companies for enhanced data comparability and verifiability. As of 2019, consumption data will also be collected on a project-related basis.

CO2 reductions from sustainable construction

HOCHTIEF actively promotes sustainable construction. Green buildings make a substantial contribution when it comes to cutting carbon emissions. Certified buildings are made to be resource-efficient, using sustainably produced or recycled materials, contracting out works regionally, and favoring short transportation distances. According to the World Green Building Council, the carbon emissions of green buildings are nearly a third lower. In a U.S. study, certified buildings showed on average engery saving of 36 percent relative to conventional buildings.

To prevent additional ground surface sealing, preserving the urban skyline , and ensuring the reuse of materials, many HOCHTIEF projects involve converting, modernizing, revitalizing, or refurbishing existing structures instead of new builds. The environmental benefits from this are less transportation, smaller waste volumes, and reduced resource use. In addition, the new more energy-efficient design significantly improves energy performance.

We aim to further expand our portfolio of sustainable projects in the long term. Capable employees trained to supervise the certification process enable us to achieve this aim. A total of 1,418 accredited auditors were employed across the HOCHTIEF Group in 2018.

In 2018, HOCHTIEF worked on projects worth around EUR 8.2 billion in the green building and green infrastructure segments (2017: EUR 7.6 billion). This growth illustrates the efforts of the Group and its clients to achieve sustainable construction. HOCHTIEF's American company Turner is the US leader in green building and our company CPB Contractors is also a leading provider of sustainable infrastructure in Australia.