1. Energy saving through optimized metering and submetering

2. Viterra Energy Services is a global leader in metering
INTRODUCTION ABOUT THE COMPANY
Viterra Energy Services is a global leader in metering
and submetering services
We provide metering and payment systems with read, bill and collection services for heat, water, gas and electricity to domestic and commercial properties
Virtually identical process chains enable us to provide services for deregulated utility industries and housing/property management companies in many countries
Standardised processes ensure high service levels, quality and customer satisfaction
Key Figures 2002
Revenues
Capital expenditure
Full-time employees
Countries
€ mio.
€ 62.2 mio.
3,712 28
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3. METERING VS. SUBMETERING
Submeter reading/
residents payments
Utility
Property
Sub-
meter
Master
Meter
Sub-
meter $
Sub-
meter
Individual bills
based on consumption $
Property Manager
VES
Master Meter Bill $
Master meter
bill / payment
Collection from
residents
Submetering
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4. SERVICE PROCESS
Meter reading and billing of individual heat and water consumption for property management (Submetering)
Reading/
Exchange
Installation
Hardware-
Supply
Installation
Customer
Care
Billing
Collection Services
Tariff and non-tariff reading and billing of gas, electricity, heat and water for utilities (Metering)
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5. EXAMPLE FOR ALLOCATION OF WATER COSTS
Master Meter Equal Total Submeter = 100 m3
Bill of Supplier $
Apt. 1
Apt. 2
20 m3
15 m3
Bill according
total Submeter consumption $ / 100 m3
Apt. 3
Apt. 4
15 m3
20 m3
Price Per Unit $ / m3
Allocation of
Water Costs
Apt x 5 = $
Apt x 5 = $
Apt x 5 = $
Apt x 5 = $
Apt x 5 = $
Apt. 5
30 m3
Summary x 5 = 500 $
100 m3
500 $
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6. EXAMPLE FOR ALLOCATION OF WATER COSTS
Bill of Supplier $
Bill according
total Submeter consumption $ / 100 m3
Apt. 1
Apt. 2
20 m3
15 m3
Apt. 3
Apt. 4
Price per Unit $ / m3
15 m3
25 m3
Allocation of
Water Costs
Apt x 5 = $
Apt x 5 = $
Apt x 5 = $
Apt x 5 = $
Apt x 5 = $
Apt. 5
10 m3
10 m3
5 m3
Garden
+ Garage
Different solutions for
common areas
( Example : Allocated per people )
(5+10) x 5 = 75 $
With 10 people:
10 P:75 $ = 7,5 $ / P
Total Consumption with
Submeter = 100 m3
Summary $
100 m3
500 $
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7. Average Consumption in Litre
CONSERVATION KENNEDY PLACE HOUSTON, TEXAS
Average Consumption in Litre
Before
After
Savings
Monthly for propterty
Monthly per unit
Monthly per person
Per person per day
4,920,890
82,012
18,658
620
1,389,205
23,151
5,261
174
72 %
Customer‘s Average Bill (Water and Sewer)
Before
After
Savings
Monthly for propterty
Monthly per unit
Monthly per person
$8,644.00
$144.00
$32.73
$1,810.00
$30.17
$6.86
79 %
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8. SELECTED WATER CONSUMPTION LEVELS
Liter used per person per day
130
280
310
360
380
470
500
600
*Germany
France
Great Britain
Japan
Italy
Australia
Canada
USA
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