New Zealand Gazette – 1995 – No. 95

Page 2953

✨ Electricity Line Charges



6 SEPTEMBER NEW ZEALAND GAZETTE

4. DERIVATION OF CHARGES

4.1 Derivation of Fixed and Variable Charges

The procedure for deriving the line charges after the budgeted costs have been allocated through to the load groups follows closely that which was recommended in the “Guide to Derivation of Line Charges”.

Those costs which were allocated directly to the load groups, ie. administration, metering, load control and meter reading costs, are charged as fixed charges per metered installation for all load groups.

Transmission costs have been allocated to load groups in proportion to the combined anytime maximum demand of each group and the allocation within each group is on the basis of assessed capacity. The result is a variable charge per kVA per installation.

Losses are apportioned on the basis of KWh of energy consumption except for groups 1a, 1b, and 1c where the losses are included in the fixed charges.

The allocated network related costs of operations and maintenance, depreciation and finance charges and return on assets are separated between fixed charges - a charge per metered installation, and variable charges - capacity and control period demand charges.

  • All costs allocated to load groups 1a, 1b and 1c, general 400V less than 28kVA, are charged as a fixed charge per metered installation.
  • Costs allocated to load groups 2a, 2b and 2c, the remaining general 400V customers, are allocated between fixed charges, charged per metered installation, and variable charges, charged per kVA assessed capacity. The allocation percentages used are those recommended in the “Guide to Derivation of Line Charges”.
  • Costs allocated to load group 3, the dedicated 400V supply, are allocated between fixed charges per metered installation and variable charges, per kVA assessed capacity and per control period demand. The allocation percentages used are those recommended in the “Guide to Derivation of Line Charges” except for the dedicated 400V lines and plant where percentages were omitted, however these have been allocated in the same manner as the distribution transformers.
  • Costs allocated to load group 4, 11kV supply, are also allocated between fixed and variable charges, including both charges per kVA assessed capacity and per control period demand. The allocation percentages used are those recommended in the “Guide to Derivation of Line Charges” except for the dedicated 11kV lines and plant where percentages were omitted, however these have been allocated in the same manner as the dedicated 400V system.

4.2 Line Rental Rebate

Installations that have loads controlled by Rotorua Electricity that operate outside the control period are given a line rental rebate. The calculation is based on the proportion of typical capacity that is shifted - 40% of the capacity related portion of the line rental and the transmission charge is used, which is based on experience and historical information. The rebate is recovered from all installations evenly.



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✨ LLM interpretation of page content

🌾 Allocation of Line Business Costs to Customer Groups (continued from previous page)

🌾 Primary Industries & Resources
Cost Allocation, Line Business, Customer Groups, Load Groups, Electricity Supply