New Zealand Gazette – 1998 – No. 193

Page 4563

✨ Energy Delivery Efficiency Statistics

30 NOVEMBER NEW ZEALAND GAZETTE 4563

TRANSPOWER NEW ZEALAND LIMITED GROUP
The Electricity (Information Disclosure) Regulations 1994
(For 12 Months ending 30 June 1998, 30 June 1997, 30 June 1996, and 30 June 1995)

Part III
Energy Delivery Efficiency Performance Measures And Statistics
(Disclosure Under Regulation 15)

	1997-98	1996-97	1995-96	1994-95
1. Energy delivery efficiency performance measures
(a) Load factor ... %	67.40	66.01	67.26	68.05
Percentage of electrical energy entering the transmission system over maximum demand times hours per year
(b) Loss ratio ... %	4.27	3.61	5.69	6.16
Transmission losses over energy entering the system
(c) Capacity utilisation ... %	66.99	67.48	70.99	70.53
Maximum demand over total transformer capacity
2. Statistics
(a) System length, broken down by voltage
Total ... km	17,640	17,693	17,739	17,626
350 kV (HVDC) ... km	611	611	611	611
270 kV (HVDC) ... km	611	611	611	611
0 kV (HVDC earth electrode) ... km	31	31	31	31
220 kV (HVAC) ... km	8,365	8,363	8,361	8,364
110 kV (HVAC) ... km	6,263	6,323	6,384	6,333
66/50/33/11 kV ... km	1,759	1,754	1,741	1,676
(b) Circuit length of overhead electric lines, broken down by voltage:
Total ... km	17,556	17,610	17,659	17,546
350 kV (HVDC) ... km	571	571	571	571
270 kV (HVDC) ... km	571	571	571	571
0 kV (HVDC earth electrode) ... km	31	31	31	31
220 kV (HVAC) ... km	8,365	8,363	8,361	8,364
110 kV (HVAC) ... km	6,259	6,320	6,384	6,333
66/50/33/11 kV ... km	1,759	1,754	1,741	1,676
NB: HVDC link submarine power cables measure approximately 80km.
Broken down by voltage:
350 kV (HVDC) ... km	40	40	40	40
270 kV (HVDC) ... km	40	40	40	40
(c) Total circuit length of underground electric lines ... km	4	3	0	0
(d) Transformer capacity (kilovolt amperes)* ... kVA	8.64*10^6	8.56*10^6	7.99*10^6	7.77*10^6
(e) Maximum demand (kilowatts) * ... kW	5.79*10^6	5.77*10^6	5.67*10^6	5.48*10^6
(f) Total electricity supplied from the system (kilowatt hours) * ... kWh	32.73*10^9	32.20*10^9	31.53*10^9	30.66*10^9
(g) Total electricity conveyed through the system (kilowatt hours) * ... kWh	34.19*10^9	33.40*10^9	33.43*10^9	32.67*10^9
(h) Total customers**	51	50	49	49

* to 2 decimal places only, higher accuracy used in calculations
** for the purposes of this reporting this is the number of "customers" Transpower invoices

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VUW Te Waharoa — NZ Gazette 1998, No 193

NZLII — NZ Gazette 1998, No 193

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✨ LLM interpretation of page content

🏭 Transpower New Zealand Limited Financial Performance Measures (continued from previous page)

Domain🏭 Trade, Customs & Industry
KeywordsFinancial Performance, Accounting Returns, Efficiency Measures, Electricity Industry, Optimised Deprival Value, ODV

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