- Greater variability in weather patterns leading to changes in generation profile
- Growing intensity of atmospheric conditions leading to damage to assets
- Government Policy settings failing to balance the energy trilemma
- Supply chain constraints driven by rising global demand for renewable electricity generation equipment
Mercury NZ Limited
Greenhouse gas emissions & sustainability report data
In its 2023 reporting, Mercury NZ Limited disclosed greenhouse gas emissions of 348.4K tCO2e/year. By scope: Scope 1: 213.6K tCO2e/year; Scope 2: 632 tCO2e/year; Scope 3: 134.8K tCO2e/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
348.4K tCO2e/year
2023
Water Usage
11.6K Mm3/year
2023
📊 Emissions by Scope (2023)
| 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). | 213.6K tCO2e/year |
| Scope 2 | Indirect emissions from purchased electricity, steam, heat and cooling. | 632 tCO2e/year |
| Scope 3 | Other indirect emissions across the value chain (purchased goods, business travel, use of sold products, etc.). | 134.8K tCO2e/year |
New to scopes? Read Scope 1, 2 and 3 emissions explained and market-based vs location-based Scope 2.
📈 Emissions by Report Period
| Report period | Headline emissions figure reported |
|---|---|
| 2023 | 348.4K tCO2e/year |
| 2021-07 to 2022-06 | 222.3K tCO2e/year |
Each row is the headline figure extracted from a different report; scope coverage and methodology can change between years.
✅ Reported Environmental Achievements
- Reduced Scope 1 emissions intensity by 18% from FY22 to FY23
- Sequestering ~8,000tCO2e p.a. of fugitive geothermal greenhouse gas emissions by reinjecting non-condensable gases
🎯 Climate & Sustainability Targets
🔜 Short-term
- 70% reduction in Scope 1 emissions intensity (in kgCO2e/kWh) from FY2022 by FY2030
- 42% absolute reduction in Scope 2 emissions from FY2022 by FY2030
- 42% absolute reduction in Scope 3 emissions from the use of sold products (natural gas sales) from FY2022 by FY2030
📅 Medium-term
- 70% reduction in Scope 1 emissions intensity (in kgCO2e/kWh) from FY2022 by FY2040
- 90% absolute reduction in Scope 2 emissions from FY2022 by FY2040
- 90% absolute reduction in Scope 3 emissions from the use of sold products (natural gas sales) from FY2022 by FY2040
🔭 Long-term
- Net-Zero emissions
🌱 ESG Focus Areas
Climate Change