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ESG Reporting

Community contributions / Employee Volunteering

  FY21
 Spend ($k)  430
 Number of organisations / initiatives supported  123
 Volunteering hours spent  733

 

Political donations

FY21
 $0

 

Contact Community Funds

  FY21
Community contribution by charitable cause   $36,642
Community contribution by contribution type   $167,986

 

Tax

  FY20 FY21
Effective tax rate 28% 28%
Effective tax rate reconciliation 27% 28%
  FY20 FY21
Net Promoter Score (NPS)   +31 
Energy sold (Electricity) GWh 5.6k  5.1k 
Energy sold (Gas) GWh 838 780
Dual fuel (electricity and gas) customers 65k 65k 
Residential customer debt average balance $600 $549

 

Services to customers

FY21
Electricity
Gas
Broadband

Creating value by balancing accessibility, reliability and environmental sustainability.

Greenhouse & Energy

  • Energy consumption by primary fuel source
Total energy consumption FY18 FY19 FY20 FY21
Non-renewable fuels (nuclear fuels, coal, oil, natural gas, etc.) purchased and consumed (MWh) 4,863,611 3,892,222 3,521,375 3,990,948
 Renewable Generation 79%  83%  83%  81% 

 

  • Operational greenhouse gas footprint (material sites and fuels)

Group Scope 1 emissions

  Emissions (tCO2e)
FY20
Emissions (tCO2e)
FY21
Thermal Generation Emission Intensity (tCO2e per MWh)
FY20
Thermal Generation Emission Intensity (tCO2e per MWh)
FY21
Total Generation Emission Intensity (tCO2e per MWh)
FY20
Total Generation Emission Intensity (tCO2e per MWh)
FY21
Fuel used for thermal generation 722,834
866,013        
Fuel used for geothermal generation 199,965
178,524        
Total fuel used for generation 922,798
1,044,537 0.532
0.544 0.109
0.124
Fuel used in vehicles 270
178        
Fugitive emissions -SF6 4
29        
Total Scope 1 923,072
1,044,744        

 

  • Operational greenhouse gas footprint (by activity type)
  • Operational greenhouse gas footprint and net energy production

Group Scope 2 and 3 emissions

Scope Category FY20 tCO2e FY21 tCO2e
Indirect Emissions (Scope 2) Electricity Consumption 1,258
1,300
  Simply Energy - electricity consumption (location based) N/A
3
  Subtotal 1,258
1,303
Indirect Emissions (Scope 3) Purchased Goods and Services 11,915
16,699
  Capital Goods 18,052
41,726
  Fuel and Energy 91,857
330,207
  Upstream Transportation 14
27
  Waste 123
149
  Business Travel 719
263
  Employee Commuting 606
306
  Use of Sold Products 166,310
165,259
  Downstream Leased Assets 306
399
  Subtotal 289,902
555,036
Total (Scope 1, 2 and 3)   1,214,232
1,601,083

 

  • Carbon intensity of operated and controlled generation assets
Geothermal assets data as at 30 June 2021 Book value
$m
Generation
(GWh)
Emissions
(tCO2e)
Emissions intensity
(gCO2e/KWh)
Compliance with CBI standards
(<100 gCO2e/KWh)
Poihipi 147 339 12,830 38 Yes
Tauhara 223 - - N/A Yes
Te Mihi 496 1,240 47,248 38 Yes
Te Huka 109 155 8,109 52 Yes
Wairakei 758 1,081 19,812 18 Yes
Tenon and Nature's Flame 9 198 1,597 8 Yes
Ohaaki 105 299 88,930 298 No
Geothermal portfolio total/average 1,847 3,312 178,526 54 Yes
Eligible Green Asset total/average 1,742 3,013 89,595 30 Yes
Total Green Debt Instruments 1,203        
Green Asset Ratio 1.45        

 

  • Revenue from thermal coal
  • Revenue from diesel
  FY20 FY21
Revenue from thermal coal $0
Revenue from diesel $1m $7.5m

 

Water

  • Water consumption by facility
  • Water withdrawal by source

Non-consumptive water usage (ML)

ML = Megalitres
Source/water use 2020 2021
Clutha Mata-Au River water 16,624,902
15,098,980
Geothermal reservoir 75,992
69,180
Geothermal reservoir 330,047
336,840
Total 17,030,941
15,505,000

 

Total water usage (ML)

ML = Megalitres
Source/water use Withdrawal 2020 Discharge 2020 Withdrawal 2021 Discharge 2021
Geothermal reservoir 114,805
38,813
103,177 33,997
River and surface water 1,536
  2,509  
Water from third parties 283
  321  
Council 34
  7,594  
Discharge from all sources   15,476
  18,727
Total 116,658
54,289
113,601 52,724

 

Waste

Total solid waste disposed (i.e. not recycled, reused or incinerated waste for energy recovery)

  FY18 FY19 FY20 FY21
Total waste generated (metric tonnes) 109 126.1 108.6 132
Total waste used/recycled/sold (metric tonnes) 0 3.4 3.6 6

 

Land

  • Site rehabilitation and restoration (At 30 June 2021)
  Location Size (ha) Status Partnerships
Torepatautahi Wetland, willow wetland restored to natives Taupō region 36.9 Ongoing weed control and replacement planting Ngati Tahu – Ngati Whaoa Runanga, Fish and Game, Department of Conservation, landowners 
Elliot Lake, farmland and replanted in natives Taupō region 1.6 Planting complete, ongoing maintenance None
Wairākei Power Station entrance, replanted in natives and fruit trees for community garden Taupō region 0.5 Planting complete, ongoing maintenance Greening Taupō
Karapiti Pines, wilding pine removal Taupō region 8.4 Ongoing maintenance None
Oruanui Pines, wilding pine removal Taupō region 4.3 Ongoing maintenance None
Wai-ora Hill, pest plant control Taupō region 64.8 Ongoing maintenance Waikato Regional Council, Ministry for Primary Industries
Oruanui, retired thermo-tolerant vegetation site from pastoral agriculture Taupō region 3.5 Ongoing maintenance None
 Karapiti, mānuka and native planting Taupō region 17.5 Ongoing maintenance and pest control None
Rakaunui and Otumuheke Block, stormwater drain and stream planting Taupō region Planting complete, ongoing maintenance None
Ohaaki Bund, scrubland replanted in natives Taupō region 1.2 Ongoing maintenance None
Waipuwerawera stream restoration, removing pest plants and planting natives Taupō region 3.2 Ongoing maintenance and pest control Tuwharetoa Maori Trust Board, Taupō District Council, Department of Conservation
Te Rau o Te Huia stream restoration Taupō region 6.6 Systematic removal of pest plants and annual planting programme Ngāti Te Rangiita Ki Oruanui
Huka Quarry block, removal of weeds and planting natives Taupō region 1.3 Ongoing maintenance and pest control None
Wairākei Drive strip, aesthetic planting Taupō region 0.5 Annual Greening Taupō planting, aligned with community desires None
Ex Keegan Stratford, riparian native planting Stratford, Taranaki 0 Annual planting programme, ongoing maintenance Taranaki Regional Council
Gladstone Gap, community plantings Hawea, Central Otago 0.5 Irrigation of native plants, partially restored area Hawea Community Association

Electricity output by primary energy source

 GWh  FY14 FY15 FY16 FY17 FY18 FY19 FY20 FY21
Thermal generation  2,865  2,321  1,614  1,742  1,812   1,421  1,360  1,592
Hydro generation  4,058  4,119  4,091  3,562  3,479  4,231  3,752  3,698
Geothermal generation  2,322  3,074  3,297   3,233  3,323  3,256  3,333  3,114

 

Geothermal generation

Please refer to the Environment section under Carbon intensity of operated and controlled generation assets.

 

Installed capacity of operated generation assets

  • Installed capacity of operated generation assets
  • Pool generation volume
  • Equivalent availability factor

Hydro

  Net capacity
(MW)
Availability
(%)
Capacity factor
(%)
Electricity output
(GWh)
Pool revenue
($/MWh)
Pool revenue
($m)
FY17 784 92% 52% 3,562 47 169
FY18 784 95% 51% 3,479 78 271
FY19 784 97% 62% 4,231 123 521
FY20 784 92% 54% 3,752 90 338
FY21 784 84% 54% 3,698 167 617

 

Geothermal

  Net capacity
(MW)
Availability
(%)
Capacity factor
(%)
Electricity output
(GWh)
Pool revenue
($/MWh)
Pool revenue
($m)
FY17 429 91% 86% 3,233 55 177
FY18 425 96% 89% 3,323 80 267
FY19 425 92% 87% 3,256 133 434
FY20 425 95% 89% 3,333 99 330
FY21 425 89% 84% 3,114 175 546

 

Taranaki combined cycle (TCC)

  Net capacity
(MW)
Availability
(%)
Capacity factor
(%)
Electricity output
(GWh)
Pool revenue
($/MWh)
Pool revenue
($m)
FY17 377 90% 31% 1,021 64 65
FY18 377 68% 32% 1,071 102 110
FY19 377 63% 31% 1,031 115 117
FY20 377 88% 26% 870 120 104
FY21 377 89% 34% 1,126 193 217

 

Peakers (including Whirinaki)

  Net capacity
(MW)
Availability
(%)
Capacity factor
(%)
Electricity output
(GWh)
Pool revenue
($/MWh)
Pool revenue
($m)
FY17 360 95% 16% 495 73 36
FY18 360 87% 17% 530 116 62
FY19 360 79% 7% 212 192 41
FY20 360 88% 9% 295 162 48
FY21 360 92% 8% 249 230 54

 

Te Rapa (spot generation only)

  Net capacity
(MW)
Availability
(%)
Capacity factor
(%)
Electricity output
(GWh)
Pool revenue
($/MWh)
Pool revenue
($m)
FY17 41 98% 63% 226 58 13
FY18 41 87% 59% 211 94 20
FY19 41 96% 54% 195 160 31
FY20 41 98% 51% 184 106 21
FY21 41 93% 58% 208 174 37
  • Employees by age
  • Employees by employment status
  • Employees by contract type
  • Employees by gender
  • Workforce diversity statistics
  • Women in leadership
  • Contact Board of Directors by gender

Workplace by gender and employment type at 30 June

FY20 Total headcount Women Men Fixed term Permanent Part time Full time
Officers  6 2 2  0  6  0  6
Corporate 69 42 27 5 64 13 56
Customer 516 324 192 25 491 72 444
Generation 343 71 272 11 332 28 315
Total 934 439 495 41 893 113 821

 

FY21 Total headcount Women Men Undisclosed Fixed term Permanent Part time Full time
Officers 9 3 6 0 0 9 0 9
Corporate 72 46 26 0 5 67 15 57
Customer 505 309 195 1 23 482 70 435
Development 55 18 37 0 3 52 2 53
Generation and trading 304 50 254 0 11 293 24 280
Total 945 426 518 1 42 903 111 834

 

Employment contract and type by gender

FY20 Women Men Total
Permanent employees 417 476 893
Fixed-term employees 22 19 41
Total     934
Full-time employees 352 469 821
Part-time employees 87 26 113
Total     934

 

FY21 Women Men Undisclosed Total
Permanent employees 405 497 1 903
Fixed-term employees 21 21 0 42
Total 945
Full-time employees 339 494 1 834
Part-time employees 87 24 0 111
Total 945

 

Board gender diversity

Men Women Total Under 30 30-50 Over 50 Total European/Pākehā Māori Pasifika Total
Board of directors FY20 4 3 7 0 3 4 7 6 1 1 7
Board of directors FY20 (%) 57% 43% 100% 0 43% 57% 100%
Board of directors FY21 3 4 7 0 4 3 7 6 1 1 7
Board of directors FY21 (%) 43% 57% 100% 0 57% 43% 100%

 

Employee diversity at 30 June, by business unit

FY20 Women Men Under 30 30-50 Over 50 Undisclosed Māori Pasifika Asian European Other AMELA Undisclosed
Officers 33% 67% 0% 33% 67% 0% 0% 17% 0% 50% 33% 0% 17%
Corporate 61% 39% 12% 62% 23% 3% 7% 0% 7% 35% 33% 0% 29%
Customer 63% 37% 29% 47% 23% 1% 9% 3% 9% 36% 25% 2% 33%
Generation 21% 79% 8% 44% 47% 1% 6% 1% 5% 39% 35% 1% 25%
Total 47% 53% 20% 47% 32% 1% 8% 2% 7% 37% 29% 1% 29%

 

FY21 Women Men Under 30 30-50 Over 50 Undisclosed Māori Pasifika Asian European Other AMELA Undisclosed
Officers 33% 67% 0% 33% 67% 0% 0% 0% 0% 44% 33% 11% 11%
Corporate 64% 36% 11% 67% 21% 1% 7% 0% 10% 35% 26% 0% 32%
Customer 61% 39% 27% 49% 23% 1% 11% 3% 10% 39% 24% 1% 28%
Development 33% 67% 9% 58% 33% 0% 5% 4% 4% 45% 31% 2% 24%
Generation and trading 16% 84% 9% 40% 50% 1% 6% 1% 6% 39% 35% 1% 24%
Total 45% 55% 19% 48% 33% 1% 9% 2% 8% 39% 28% 1% 26%

 

Employee diversity at 30 June, by employee category

FY21 Women Men Under 30 30-50 Over 50 Undisclosed Māori Pasifika Asian European Other AMELA Undisclosed
KMP 33% 67% 0% 33% 67% 0% 0% 0% 0% 44% 33% 11% 11%
Other Execs/GMs 33% 67% 0% 83% 17% 0% 0% 0% 0% 33% 25% 0% 42%
Senior Management 42% 58% 0% 70% 30% 0% 3% 0% 3% 48% 45% 0% 18%
Other Managers 32% 68% 2% 47% 50% 1% 6% 1% 6% 45% 32% 0% 21%
Non-Managers 47% 53% 22% 47% 30% 1% 9% 2% 9% 38% 27% 1% 27%
Total 45% 55% 19% 48% 33% 1% 9% 2% 8% 39% 28% 1% 26%

 

Safety

  • Health and safety performance - employees
  • Health and safety performance - contractors
  • Health and safety performance - combined employees and contractors
  • Other HSE performance indicators

Safety data at 30 June 2021

Number (Employees) Rate (Employees) Number (Non-employees) Rate (Non-employees)
Fatalities 0 0 0 0
High-consequence work-related 0 0 0 0
Recordable work-related injuries 1 1 4 9
Number of hours worked 1,914,213 N/A 465,707 N/A

The main types of work-related injuries: Foreign body in eye, Strains and sprains.

Work-related hazards that pose a risk of high-consequence injury: Energy sources, harzardous substances, working at height, working in confined spaces, lifting heavy loads, working with mobile plant, working around water, excavations, fitness for work, staying safe while driving, scope of work change.

 

FY18
FY19
FY20 FY21
Controlled TRIFR 3.3
1.3
2.1 2.1
Monitored TRIFR 6.6
18.8
5.4 21.5
Process safety (Tier 1) 0 0 0 0
Process safety (Tier 2) 0
2 2 3
Process safety (Tier 3) 56
58
24 49

Tier 1 - a significant loss of containment of hazardous material or energy.
Tier 2 - a lesser loss of primary containment or a significant degradation of barriers.
Tier 3 - learning event where issues have been identified in our process safety barriers or controls.

Reportable privacy indcidents

Number of complains received from outside parties 1
Number of complaints received from regulatory bodies 0
Total number of identified leaks, thefts, or losses of customer data 28*

* We started recording the number of privacy breaches from 1 December 2020. While the number appears high, most of the privacy breaches were considered minor in nature (for example, affected one or two customers casuing little or noharm) and did not require being reported to the Office of the Privacy Commissioner.