Mexican Operations
| 2000 | 2001 | 2002 | 2003 | 2004 | |
| MANAGEMENT SYSTEMS | |||||
| Facilities with ISO 14001 and/or OHSAS 18000-based management systems | - | - | - | 2 | 2 |
| Generation capacity with ISO 14001 and OHSAS 18001-based management systems (%) | - | - | - | 100 | 100 |
| Management system audits 1 | - | - | - | 1 | 2 |
| Compliance audits | - | - | - | 1 | 1 |
| ENVIRONMENTAL PERFORMANCE | |||||
| Air emissions 2 | |||||
| Sulphur dioxide (tonnes) | - | - | - | 20 | 40 |
| Sulphur dioxide emission intensity (kg/MWh) | - | - | - | 0.01 | 0.01 |
| Nitrogen oxide (tonnes) | - | - | - | 500 | 1,000 |
| Nitrogen oxide emission intensity (kg/MWh) | - | - | - | 0.31 | 0.31 |
| Particulate matter (tonnes) | - | - | - | 500 | 1,000 |
| Particulate matter emission intensity (kg/MWh) | - | - | - | 0.31 | 0.31 |
| Mercury (kilograms) | - | - | - | 10 | 20 |
| Mercury emission intensity (mg/MWh) | - | - | - | 0.01 | 0.01 |
| Greenhouse gas emissions 3 | |||||
| Carbon dioxide (CO2E tonnes) | - | - | - | 608,120 | 1,225,850 |
| Methane (CO2E tonnes) 4 | - | - | - | 1,000 | 2,010 |
| Nitrous oxide (CO2E tonnes) | - | - | - | 5,250 | 10,610 |
| CFC-11 (CO2E tonnes) | - | - | - | 0 | 0 |
| Sulphur hexafluoride (CO2E tonnes) | - | - | - | 0 | 0 |
| Gross emissions (CO2E tonnes) | - | - | - | 614,400 | 1,238,500 |
| Emission reductions (CO2E tonnes) | - | - | - | 166,270 | 241,140 |
| Net emissions (CO2E tonnes) 5 | - | - | - | 448,130 | 997,360 |
| Gross emission intensity (kg CO2E/MWh) | - | - | - | 380 | 390 |
| Net emission intensity (kg CO2E/MWh) 5 | 277 | 314 | |||
| Land and materials management | |||||
| Land used in mining activities (hectares) | - | - | - | - | - |
| Land used by plants, offices and equipment (hectares) 6 | - | - | - | - | - |
| Non-hazardous waste disposed (tonnes) 7 | - | - | - | - | - |
| Hazardous waste disposed (tonnes) 8 | - | - | - | - | - |
| Paper used (tonnes) | - | - | - | - | - |
| Paper recycled (tonnes) | - | - | - | - | - |
| Water 10 | |||||
| Total water intake (million m3) | - | - | - | 0.55 | 1.82 |
| Total water discharge (million m3) | - | - | - | 0.44 | 0.39 |
| Water consumption (million m3) 11 | - | - | - | 0.11 | 1.43 |
| Water consumption intensity (m3/MWh) | - | - | - | 0.07 | 0.45 |
| Regulatory performance 31 | |||||
| Stack regulatory contraventions | - | - | - | 0 | 0 |
| General air regulatory contraventions | - | - | - | 0 | 0 |
| Spills to land regulatory contraventions | - | - | - | 0 | 0 |
| Spills to water regulatory contraventions | - | - | - | 0 | 0 |
| Other regulatory contraventions 12 | - | - | - | 0 | 0 |
| Administrative regulatory contraventions | - | - | - | 0 | 0 |
| Environmental enforcement actions 13 | - | - | - | 0 | 0 |
| PRODUCTION | |||||
| Coal generation net capacity (MW) | - | - | - | 0 | 0 |
| Natural gas generation net capacity (MW) | - | - | - | 511 | 761 |
| Hydro generation net capacity (MW) | - | - | - | 0 | 0 |
| Wind generation net capacity (MW) | - | - | - | 0 | 0 |
| Total net capacity (MW) | - | - | - | 0 | 0 |
| Coal net generation (MWh) | - | - | - | 0 | 0 |
| Natural gas net generation (MWh) | - | - | - | 1,615,000 | 3,179,000 |
| Hydro net generation (MWh) | - | - | - | 0 | 0 |
| Wind net generation (MWh) | - | - | - | 0 | 0 |
| Total net generation (MWh) | - | - | - | 1,615,000 | 3,179,000 |
| Capital expenditures on environmental monitoring and pollution abatement ($ millions) 18 | - | - | - | 0.000 | 0.244 |
| Operations and maintenance expenditures on environmental monitoring and pollution abatement ($ millions)19 | - | - | - | 0.129 | 1.068 |
| SOCIAL PERFORMANCE | |||||
| Health and safety | |||||
| Health and safety enforcement actions 20 | - | - | - | 0 | 0 |
| Full-time equivalent employees 21 | 6 | 15 | 97 | 117 | 75 |
| EH&S full-time equivalent employees 22 | - | - | - | 0 | 0 |
| Injuries to employees | - | - | - | 0 | 0 |
| Employee injuries requiring absence from work | - | - | - | 0 | 0 |
| Employee recordable injury frequency rate (injuries/200,000 hours) 23 | - | - | - | 0.00 | 0.00 |
| Employee disabling injury frequency rate (injuries/200,000 hours) 24 | - | - | - | 0.00 | 0.00 |
| Injuries to contractors | - | - | 16 | 2 | 0 |
| Contractor injuries requiring absence from work | - | - | 7 | 0 | 0 |
| Contractor recordable injury frequency rate (injuries/200,000 hours) 23 | - | - | 1.28 | 0.17 | 0.00 |
| Contractor disabling injury frequency rate (injuries/200,000 hours) 24 | - | - | 0.56 | 0.00 | 0.00 |
| Short-term disability rate (days/1,000 employees) 26 | - | - | - | - | - |
| Long-term disability rate (cases/1,000 employees) 27 | - | - | - | - | - |
| Reportable vehicle incidents 28 | - | - | - | - | - |
| Health and safety training per employee (hours/employee) | - | - | - | - | - |
| Environmental training per employee (hours/employee) | - | - | - | - | - |
| Community relations | |||||
| Community investments ($ millions) 29 | - | - | - | 0 | 3,000 |
| Community investments per employee ($/employee) | - | - | - | 0 | 40 |
| Company-initiated volunteer hours per employee |
- | - | 0.3 | 0.0 | 0.6 |
Please see discussion and notes section for explanation.