This section on our environmental performance relates to all employees working in premises owned or leased by ABB, including manufacturing and non-manufacturing sites. It does not cover our customers’ sites or suppliers.
The majority of employees - some 83 percent - are covered by data collected year-on-year from approximately 360 sites, mainly manufacturing and service organizations.
For non-manufacturing sites, which by nature have only limited environmental impact, we have made assumptions of the levels of their main environmental indicators, such as the use of electricity, district heating and water consumption per person. These assumptions are based on data from comparable premises and relate to about 17 percent of employees, an improvement by 5 percent in 2006. When we have made an assumption, it is stated in the text.
Under the indicators in the GRI Guidelines, we have chosen to report data which is relevant to the environmental impact caused by ABB’s activities, products and services. In recent years we have steadily expanded our data collection system to cover most of the GRI indicators.
However, rather than report the amount of materials used, we believe it is more useful and challenging to report on our use of hazardous substances as defined by official international lists of restricted substances, and to show the progress we are making in eliminating them.
To report precise figures for all other (non-hazardous) materials would be very difficult for a company like ABB, which manufactures such a wide range of products in many different sites, and sources millions of different materials and components globally and locally. Apart from report the amount of materials used, we have reported against all the GRI core environmental indicators and many of the additional indicators.
We have also discontinued the reporting of data – either where the quantities have become negligible, or where ABB’s activities have almost no impact (for example on water sources), or where data can only be based on estimates (for example, types and impacts of transportation, disposal methods of regular waste).
Direct energy use (Gigawatt-hours – GWh)
| Primary fuel | 2006* | 2005 | 2004 |
 |  |  |  |
| Oil (11.63 MWh/ton) | 117 | 134 | 126 |
 |  |  |  |
| Coal (7.56 MWh/ton) | 8 | 8 | 17 |
 |  |  |  |
| Gas | 435 | 460 | 417 |
 |  |  |  |
| District heat | 239* | 217 | 256 |
 |  |  |  |
| Electricity | 1,265* | 1,304 | 1,212 |
 |  |  |  |
| Total energy used | 2,064 | 2,123 | 2,028 |
 |  |  |  |
* The figures are based on reported data from 83 percent of employees and an assumed energy use of 3 megawatt-hours (MWh) per employee for district heat and 12 MWh per employee for electricity for the remaining 17 percent of employees.
Indirect energy use (Gigawatt-hours – GWh)
 |  |  |  |
 | Used by ABB | Losses at utilities | Total use of energy |
 | 2006 | 2005 | 2004 |
 |  |  |  |
| District heat | 239* | 217 | 256 |
 |  |  |  |
| Electricity | 1,265* | 1,304 | 1,212 |
 |  |  |  |
* The figures are based on reported data from 83 percent of employees and an assumed energy use of 3 megawatt-hours (MWh) per employee for district heat and 12 MWh per employee for electricity for the remaining 17 percent of employees.
Greenhouse gas emissions (kilotons)
 | 2006 | 2005 | 2004 |
 |  |  |  |
| CO2 from use of energy | 833* | 870 | 824 |
 |  |  |  |
| SF6 (in CO2 equivalents) | 558*** | 295 | 253 |
 |  |  |  |
| CO2 from transport by own fleet** | 350 | 350 | 350 |
 |  |  |  |
*The figure is based on reported data from 83 percent of employees and an assumed energy use of 3 megawatt-hours (MWh) per employee for district heat and 12 MWh per employee for electricity for the remaining 17 percent of employees.
**Estimated figures
***Increase due to significantly higher business volume
Carbon dioxide (CO2) emissions calculations are based on in-house energy use for production, lighting, heating and air-conditioning, and include indirect emissions at utilities where ABB buys power. Sulfur hexafluoride (SF6) emissions are estimated to be equivalent to three percent of all SF6 gas used by ABB.
The total amount of ABB’s greenhouse gas emissions, based on the WBCSD/WRI Greenhouse Gas Protocol (Scope I and II), is estimated to be 1.7 million tons for the whole ABB Group.
Greenhouse gas emissions by type for 2006
– CO2 from use of energy* 48 percent
– SF6 (in CO2 equivalents) 32 percent
– CO2 from transport by own fleet** percent
Use of hazardous substances (tons)
 | 2006 | 2005 | 2004 |
 |  |  |  |
| Phthalates (DIDP) – softener for PVC | 42* | 19 | 1.7 |
 |  |  |  |
| PBB and PBDE – flame retardants in plastics | 3.1 | 9 | 108 |
 |  |  |  |
| Lead in submarine cables | 6,900* | 4,306 | 2,810 |
 |  |  |  |
| Lead in other products, e.g. counterweights in robots | 222 | 316 | 211 |
 |  |  |  |
| Cadmium in rechargeable batteries | 4** | 20 | 1.9 |
 |  |  |  |
| Cadmium in industrial batteries delivered to customers | 22 | 26 | 69 |
 |  |  |  |
| Cadmium in lead alloy | 5 | 3 | 2.0 |
 |  |  |  |
| Mercury in products delivered to customers | 0.009 | 0.014 | 0.020 |
 |  |  |  |
| SF6 insulation gas (inflow to ABB) | 815* | 481 | 388 |
 |  |  |  |
| SF6 insulation gas (outflow from ABB) | 596* | 441 | 353 |
 |  |  |  |
*Increase due to higher business volume
**Decrease due to change of battery technology
Water consumption (kilotons)
 | 2006 | 2005 | 2004 |
 |  |  |  |
| Purchased from water companies | 3,431* | 3,432 | 3,200 |
 |  |  |  |
| Groundwater extracted by ABB** | 2,700 | 2,500 | 2,500 |
 |  |  |  |
| Surface water extracted by ABB** | 2,500 | 1,700 | 1,000 |
 |  |  |  |
*The figure is based on reported data from 83 percent of employees and an assumed water consumption of ten tons/year/employee for the remaining 17 percent of employees.
**Estimated (rounded) figures
Emissions of ozone-depleting substances (tons)
 | 2006 | 2005 | 2004 |
 |  |  |  |
| Volatile Organic Compounds (VOC) | 992 | 981 | 861 |
 |  |  |  |
Chlorinated Volatile Organic
Compounds (VOC-Cl) | 29* | 13.5 | 22 |
 |  |  |  |
*Increase due to higher business volume
Emissions of NOx and SOx (tons SO2 and NO2)
 | 2006 | 2005 | 2004 |
 |  |  |  |
| SOx from burning coal | 6 | 6 | 12 |
 |  |  |  |
| SOx from burning oil | 86 | 97 | 92 |
 |  |  |  |
| NOx from burning coal | 4 | 4 | 9 |
 |  |  |  |
| NOx from burning oil | 65 | 73 | 69 |
 |  |  |  |
| NOx from burning gas | 89 | 99 | 90 |
 |  |  |  |
Waste (tons)
 | 2006 | 2005 | 2004 |
 |  |  |  |
| Waste sent for recycling | 111,674 | 85,131 | 70,291 |
 |  |  |  |
| General waste sent for disposal | 30,994* | 28,514 | n.a. |
 |  |  |  |
| Hazardous waste | 4,296 | 5,775 | 3,719 |
 |  |  |  |
*The figure is based on reported data from 83 percent of employees and an assumed waste output of 0.28 tons/year/employee for the remaining 17 percent of employees.
Numbers of significant spills
 | 2006 | 2005 | 2004 |
 |  |  |  |
| Oil spills | 3 | 8 | 7 |
 |  |  |  |
| Chemical spills | 0 | 7 | 2 |
 |  |  |  |
| Emissions to air | 1 | 3 | 1 |
 |  |  |  |
| Others | 0 | 1 | 2 |
 |  |  |  |
Adequate decontamination procedures were implemented to prevent any permanent contamination of soil and water due to these spills. Corrective actions, such as improved control systems, have been taken to reduce the risk of future spills.
Auditing of suppliers’ sustainability performance
Each country is provided with a generic audit protocol for the screening of suppliers. The protocol is used for the auditing of the five most significant suppliers rated according to the severity of their environmental and social impacts.
For example, ABB has identified a total of 1,233 suppliers which fall in this category. Of this total, 570 already have externally certified environmental management systems to ISO 14001. ABB is now focusing its auditing work on the remaining suppliers. Furthermore, in response to ABB’s screening questionnaire, 1,107 of the total confirmed that they are in legal compliance.