ESG Report | Infrastructure | Contact Energy

Electricity output by primary energy source

GWh	FY25	FY24	FY23	FY22	FY21	FY20	FY19	FY18	FY17	FY16	FY15	FY14
Thermal generation	1,088	1,619	517	1,046	1,592	1,360	1,421	1,812	1,742	1,614	2,321	2,865
Hydro generation	3,297	3,628	3,919	3,940	3,698	3,752	4,231	3,479	3,562	4,091	4,119	4,058
Geothermal generation	4,543	3,389	3,185	3,283	3,114	3,333	3,256	3,323	3,233	3,297	3,074	2,322
Total	8,928	8,636	7,622	8,269	8,404	8,445	8,908	8,614	8,537	9,002	9,514	9,245

Geothermal generation

Please refer to the Sustainable Finance webpage

Installed capacity of operated generation assets

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

Hydro

	FY25	FY24	FY23	FY22	FY21	FY20	FY19	FY18	FY17
Net capacity (MW)	784	784	784	784	784	784	784	784	784
Availability (%)	87%	90%	84%	83%	84%	92%	97%	95%	92%
Capacity factor (%)	48%	53%	57%	57%	54%	54%	62%	51%	52%
Electricity output (GWh)	3,297	3,628	3,918	3,939	3,698	3,752	4,231	3,479	3,562
Pool revenue ($/MWh)	163	164	74	121	167	90	123	78	47
Pool revenue ($m)	538	594	290	478	617	338	521	271	169

Geothermal

	FY25	FY24	FY23	FY22	FY21	FY20	FY19	FY18	FY17
Net capacity (MW)	625	586	410	425	425	425	425	425	429
Availability (%)	90%	94%	94%	97%	89%	95%	92%	96%	91%
Capacity factor (%)	84%	56%	89%	91%	84%	89%	87%	89%	86%
Electricity output (GWh)	4,544	3,388	3,186	3,284	3,114	3,333	3,256	3,323	3,233
Pool revenue ($/MWh)	186	177	80	140	175	99	133	80	55
Pool revenue ($m)	845	601	254	458	546	330	434	267	177

Taranaki combined cycle (TCC)

	FY25	FY24	FY23	FY22	FY21	FY20	FY19	FY18	FY17
Net capacity (MW)	377	377	377	377	377	377	377	377	377
Availability (%)	89%	85%	85%	84%	89%	88%	63%	68%	90%
Capacity factor (%)	21%	5%	5%	20%	34%	26%	31%	32%	31%
Electricity output (GWh)	692	1,395	161	672	1,126	870	1,031	1,071	1,021
Pool revenue ($/MWh)	331	184	107	180	193	120	115	102	64
Pool revenue ($m)	229	257	18	121	217	104	117	110	65

Stratford Peakers

	FY25	FY24	FY23	FY22	FY21	FY20	FY19	FY18	FY17
Net capacity (MW)	202	202	202	202	202	202	202	202	202
Availability (%)	70%	50%	77%	53%	90%	80%	64%	79%	92%
Capacity factor (%)	22%	12%	8%	10%	13%	16%	12%	30%	30%
Electricity output (GWh)	378	221	145	176	232	289	206	526	495
Pool revenue ($/MWh)	217	175	207	212	230	161	185	114	70
Pool revenue ($m)	82	39	31	38	54	47	38	60	35

Whirinaki

	FY25	FY24	FY23	FY22	FY21	FY20	FY19	FY18	FY17
Net capacity (MW)	158	158	158	158	158	158	158	158	158
Availability (%)	92%	97%	82%	95%	94%	98%	98%	99%	99%
Capacity factor (%)	1%	0%	0%	0%	0%	0%	0%	0%	0%
Electricity output (GWh)	18	1	1	3	17	2	5	3	1
Pool revenue ($/MWh)	667	747	491	597	410	293	472	656	2108
Pool revenue ($m)	12	1.1	1.2	2.4	7.5	1	2.5	1.7	1

Te Rapa (spot generation only)

	FY23	FY22	FY21	FY20	FY19	FY18	FY17
Net capacity (MW)	41	41	41	41	41	41	41
Availability (%)	92%	95%	93%	98%	96%	87%	98%
Capacity factor (%)	30%	54%	58%	51%	54%	59%	63%
Electricity output (GWh)	107	195	208	184	195	211	226
Pool revenue ($/MWh)	94	145	174	106	160	94	58
Pool revenue ($m)	12	28	37	21	31	20	13

_{Note: Te Rapa has ceased operation from June 2023}

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