Key Performance Indicators to criteria 11 to 12

Key Performance Indicator GRI SRS-301-1: Materials used
The reporting organization shall report the following information:

a. Total weight or volume of materials that are used to produce and package the organization’s primary products and services during the reporting period, by:
i. non-renewable materials used;
ii. renewable materials used.

Materials used by weight or volume
Material Unit 2016 2017
Screed t 178 209
Styrofoam m3 1,000 700
Mineral wool m3 13,600 8,250
Cellulose blown-in insulation m3 21,200 5,800
Paper t 51 53
 

Key Performance Indicator GRI SRS-302-1: Energy consumption
The reporting organization shall report the following information:

a. Total fuel consumption within the organization from non-renewable sources, in joules or multiples, and including fuel types used.

b. Total fuel consumption within the organization from renewable sources, in joules or multiples, and including fuel types used.

c. In joules, watt-hours or multiples, the total:
i. electricity consumption
ii. heating consumption
iii. cooling consumption
iv. steam consumption

d. In joules, watt-hours or multiples, the total:
i. electricity sold
ii. heating sold
iii. cooling sold
iv. steam sold

e. Total energy consumption within the organization, in joules or multiples.

f. Standards, methodologies, assumptions, and/or calculation tools used.

g. Source of the conversion factors used.

 
Energy consumption of the portfolio in MWh  
Type of energy Usage 2016 2017
Natural gas Heating 521,648 535,338
Petroleum Heating 36,926 37,768
Pellets Heating 8,412 8,419
District heating Heating 589,419 618,952
Electricity Lightning and electrical equipment 33,313 32,948
Energy sold generated from photovoltaics   -985 -688
Total   1,188,733 1,232,737
         
 

Key Performance Indicator GRI SRS-302-4: Reduction of energy consumption
The reporting organization shall report the following information:

a. Amount of reductions in energy consumption achieved as a direct result of conservation and efficiency initiatives, in joules or multiples.

b. Types of energy included in the reductions; whether fuel, electricity, heating, cooling, steam, or all.

c. Basis for calculating reductions in energy consumption, such as base year or baseline, including the rationale for choosing it.

d. Standards, methodologies, assumptions, and/or calculation tools used.

 
Reduction in the energy consumption and climate emissions of the administrativelocations based on efficiency and savings measures1)
Measure Unit 2016 2017
Annual savings due to conversion to LED MWh 2.6 2.6
Annual avoided emissions due toconversion to LED t CO2e 1.4 1.4
Emissions avoided because of certified green electricity from hydroelectric power t CO2e 514 540
1) The artworks in the exhibition spaces are now illuminated with LED. The resultant energy savings and avoided climate emissions could not be determined. 

Reduction in the energy consumption and climate emissions of the portfoliobased on efficiency and savings measures2)

  
Measure Einheit 2017
Reduction in energy consumption due to refurbishment andmodernisation of the units MWh 3,797.1
Annual avoided emissions due toconversion to LED t CO2e 915
Climate emissions avoided due to certified green electricity from hydroelectric power t CO2e 17,365
         
2) The derived climate emission volumes were calculated using a factor of 241 g/kWh for natural gas (emission factor of the Institut Wohnen und Umwelt [IWU]).

Key Performance Indicator GRI SRS-303-3: Water withdrawal
The reporting organization shall report the following information:

a. Total water withdrawal from all areas in megaliters, and a breakdown of this total by the following sources, if applicable:
i. Surface water;
ii. Groundwater;
iii. Seawater;
iv. Produced water;
v. Third-party water.

b. Total water withdrawal from all areas with water stress in megaliters, and a breakdown of this total by the following sources, if applicable:
i. Surface water;
ii. Groundwater;
iii. Seawater;
iv. Produced water;
v. Third-party water, and a breakdown of this total by the withdrawal sources listed in i-iv.

c. A breakdown of total water withdrawal from each of the sources listed in Disclosures 303-3-a and 303-3-b in megaliters by the following categories:
i. Freshwater (≤1,000 mg/L Total Dissolved Solids);
ii. Other water (>1,000 mg/L Total Dissolved Solids).

d. Any contextual information necessary to understand how the data have been compiled, such as any standards, methodologies, and assumptions used.

Water consumption and water intensity, portfolio 1)
  Einheit 2016 2017
Water consumption m3 8,453,625 7,929,615
Water consumption per sqm of residential and commercial area m3 1.33 1.24
Residential and commercial area included sqm 6,377,279 6,394,399
Units included number 106,908 106,318

1) The data here relates to our Berlin portfolio, which accounted for around 71% of our portfolio as a whole in 2017. The data is taken from our main water meters. These record both the individual tenants’ consumption levels, which account for the majority of total consumption, and general water consumption in the communal areas as well as for sprinkler systems. There are no sub-meters for the individual spaces in part of our portfolio. It is therefore not currently possible to provide separate data for water consumption in the communal areas, which account for only a very small proportion (around 1%) of the total area.

Key Performance Indicator GRI SRS-306-3: Waste generated
The reporting organization shall report the following information:

a. Total weight of waste generated in metric tons, and a breakdown of this total by composition of the waste.

b. Contextual information necessary to understand the data and how the data has been compiled.

 
Non-hazardous waste attributable to administrative activities in tonnes by method of disposal 1)
Method of disposal Waste category Unit 2016 2017
Recycling Paper in t 85.1 76.6
1) Paper waste levels are recorded for the administrative locations. Further data relating to non-hazardous types of waste is not relevant in view of the administrative activities and can also not be reliably quantified.