- Climate change impacts (rising sea levels, more intense rainfall).
- Increasing water demand.
- Slower-growing workforce.
- Cost pressures from low-carbon transition, inflation, and supply chain disruptions.
- Cybersecurity risks.
Public Utilities Board
Greenhouse gas emissions & sustainability report data
In its 2023-04 to 2024-03 reporting, Public Utilities Board disclosed greenhouse gas emissions of 229.4 ktCO2e/year (Scope 1 & 2). By scope: Scope 1: 7.2 ktCO2e/year; Scope 2: 222.0 ktCO2e/year; Scope 3: 189 ktCO2e/year. Figures are as stated in the company's own report and may use different boundaries, units or methods (for example market-based vs location-based Scope 2), so compare with care.
GHG Emissions
229.4 ktCO2e/year (Scope 1 & 2)
2023-04 to 2024-03
Renewable Energy
10% (from floating solar)
of total energy
Water Usage
154.4K m3/year (PUB potable water consumption)
2023-04 to 2024-03
Waste
205.0K tons/year (non-hazardous operational waste)
2023-04 to 2024-03
Energy Use
532.3 GWh/year (non-renewable)
2023-04 to 2024-03
📊 Emissions by Scope (2023-04 to 2024-03)
| Scope | What it covers | Reported value |
|---|---|---|
| Scope 1 | Direct emissions from sources the company owns or controls (fuel combustion, company vehicles, process and fugitive emissions). | 7.2 ktCO2e/year |
| Scope 2 | Indirect emissions from purchased electricity, steam, heat and cooling. | 222.0 ktCO2e/year |
| Scope 3 | Other indirect emissions across the value chain (purchased goods, business travel, use of sold products, etc.). | 189 ktCO2e/year |
New to scopes? Read Scope 1, 2 and 3 emissions explained and market-based vs location-based Scope 2.
✅ Reported Environmental Achievements
- Reduced Scope 1 and 2 emissions by 7% from FY2022 to FY2023.
- Deployed 64 MWp of floating solar projects, meeting 10% of PUB’s energy needs.
- Completed DTSS2 tunnelling works.
- Completed a 6m diameter subsea tunnel from the future Tuas NEWater Factory to Jurong Island.
🎯 Climate & Sustainability Targets
📅 Medium-term
- Achieve 10% reduction in Energy Utilisation Index from average of 2018–2020 levels by 2030.
- Improve Water Efficiency Index by 10% by 2030.
- Reduce Waste Disposal Index by 30% from 2022 levels by 2030.
🔭 Long-term
- Achieve net zero emissions around 2045.
🌱 ESG Focus Areas
Sustainable Water SystemCoastal Protection and Flood ResilienceDecarbonisationResource CircularityOur People: Healthy, Safe, CompetentCustomers and CommunityRisk ManagementFinancial Sustainability