New Zealand Gazette – 1997 – No. 165

Page 3930

✨ Transpower Efficiency Performance

3930 NEW ZEALAND GAZETTE No. 165

TRANSPOWER NEW ZEALAND LIMITED GROUP

The Electricity (Information Disclosure) Regulations 1994
(For 12 Months ending 30 June 1997, 30 June 1996, 30 June 1995, and 30 June 1994)

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

	1996-97	1995-96	1994-95	1993-94
1. Energy delivery efficiency performance measures
(a) Load factor ... %	66.01	67.26	68.05	68.96
Percentage of electrical energy entering the transmission system over maximum demand times hours per year
(b) Loss ratio ... %	3.61	5.69	6.16	6.09
Transmission losses over energy entering the system
(c) Capacity utilisation ... %	67.48	70.99	70.53	66.91
Maximum demand over total transformer capacity
2. Statistics
(a) System length, broken down by voltage
Total ... km	17,693	17,739	17,626	17,629
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	8,363	8,361	8,364	8,367
110 kV (HVAC) ... km	6,323	6,384	6,333	6,372
66/50/33/11 kV ... km	1,754	1,741	1,676	1,637
(b) Circuit length of overhead electric lines, broken down by voltage:
Total ... km	17,610	17,659	17,546	17,549
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	8,363	8,361	8,364	8,367
110 kV (HVAC) ... km	6,320	6,384	6,333	6,372
66/50/33/11 kV ... km	1,754	1,741	1,676	1,637
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	3	0	0	0
(d) Transformer capacity (kilovolt amperes)* ... kVA	8.56*10^6	7.99*10^6	7.77*10^6	7.92*10^6
(e) Maximum demand (kilowatts) * ... kW	5.77*10^6	5.67*10^6	5.48*10^6	5.30*10^6
(f) Total electricity supplied from the system (kilowatt hours) * ... kWh	32.20*10^9	31.53*10^9	30.66*10^9	30.08*10^9
(g) Total electricity conveyed through the system (kilowatt hours) * ... kWh	33.40*10^9	33.43*10^9	32.67*10^9	32.03*10^9
(h) Total customers**	50	49	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 1997, No 165

NZLII — NZ Gazette 1997, No 165

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✨ LLM interpretation of page content

🏭 Energy Delivery Efficiency Performance Measures and Statistics (continued from previous page)

Domain🏭 Trade, Customs & Industry
KeywordsEnergy efficiency, Transmission losses, Capacity utilisation, System length, Circuit length, Transformer capacity, Maximum demand, Electricity supply, Electricity conveyance, Customers

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