Transcript Expenditure forecast assessment guideline

Measuring DNSP Outputs for
Economic Benchmarking
AER Economic Benchmarking Workshop #4
30 April 2013
Denis Lawrence and John Kain
Main Issue
Data requirements
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Are there any variables missing from table 1 in section
3.2 that should be there?
Are the definitions proposed appropriate for economic
benchmarking?
Should any of the definitions be altered to ensure
consistency across DNSPs?
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Other Issues
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Calculating output weights
Including reliability measures as outputs
Scope of services to include
System capacity or peak demand?
Which peak demand?
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Output Specification #1
Quantity
Customers (No)
Value
Revenue * Cost share
Price
Value / Customers
System capacity (kVA*kms) Revenue * Cost share
Value / kVA*kms
Throughput (GWh)
Revenue * Cost share
Value / GWh
Interruptions (Customer
mins)
–1 * Customer mins *
VCR per customer
minute
–1 * VCR per customer
minute
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Output Specification #2
Quantity
Customers (No)
Smoothed non–coincident
peak demand (MVA)
Throughput (GWh)
Interruptions (Customer
mins)
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Value
Price
Revenue * Cost share
Revenue * Cost share
Value / Customers
Value / MVA
Revenue * Cost share
–1 * Customer mins *
VCR per minute
Value / GWh
–1 * VCR per customer
minute
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Output Specification #3
Quantity
Value
Price
Residential Customers (No)
Commercial Customers (No)
Sml Industrial Cust’rs (No)
Lge Industrial Customers (No)
Interruptions (Customer mins)
Revenue * Cost share
Revenue * Cost share
Revenue * Cost share
Revenue * Cost share
–1 * Customer mins *
VCR per customer
minute
Value / Res Customers
Value / Comm Customers
Value / Sml Ind Cust’rs
Value / Lge Ind Cust’rs
–1 * VCR per customer
minute
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Operating environment short list
Variable
Density factors
Definition
Source
Customers/route kilometre of line
MWh/customer
kVA non–coincident peak demand (at zone substation
level)/customer
RIN
RIN
RIN
Extreme heat days
Number of extreme cooling degree–days (above, say, 25° C)
BoM
Extreme cold days
Number of extreme heating degree–days (below, say, 12° C)
BoM
Extreme wind days
Number of days with peak wind gusts over, say, 90 km/hour
BoM
Number of days over 50 per cent of service area subject to
severe or higher bushfire danger rating
Percentage of route line length classified as short rural or
long rural
Percentage of route line length requiring active vegetation
management
BoM & FAs
Route length of lines
RIN
Customer density
Energy density
Demand density
Weather factors
Terrain factors
Bushfire risk
Rural proportion
Vegetation encroachment
RIN
DNSPs
Service area factors
Line length
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