Post on 16-Mar-2018
Unrestricted © Siemens 2017 siemens.com
Martin Kuhlmannmartin.kuhlmann@siemens.com
Smart Metering AMI Program - AFRICAAdvanced Revenue Program: Large Power UsersMarch, 2017
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March 2017Page 2 Siemens Energy Management Digital Grid Martin Kuhlmann
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• What is the benefit of prepaid to the LPU consumer?
• How does a utility introduce complex electricity tariffs into prepaid
smart metering AMI system?
• Case Study: City of Tshwane (TUMS)
• How do “water and gas meters” interface into the same
framework as above?
• Conclusion
Table of Contents
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• This presentation leads into the topic of “Advanced Revenue: Large Power Users” in a
Smart Meter AMI Program
• It attempts to help with the question of how “prepayment” fits into modern Smart
Metering programs?
Questions that are typically asked are:
1. What the benefit of prepaid to the consumer, particularly the Bulk and LPU C&I
consumer?
2. How does a Utility introduce complex electricity tariffs into prepaid such as:
• Linear
• Tiered
• Max Demand
• Above linked to Time of Use (TOU) etc
Case Study:
Prepayment,
the bigger
picture for a
Smart
Metering
Program
Abstract……..
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3. Is the future direction of prepayment linked to the STS and split meter (“Thick”
meter), or by controlling “prepayment” in the AMI backend system with a “Thin”
meter?
4. What benefits come out of prepayment for both Utilities and Consumers?
5. How do “Water Meters” interface into the same framework as asked above?
This presentation explores these questions and provides some answers
Case Study:
Prepayment,
the bigger
picture for a
Smart
Metering
Program
Abstract……..
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Large | Medium Power Users (LPU | MPU).
Larg
e |
Me
diu
m P
ow
er
Us
ers
(L
PU
| M
PU
)
What the benefit is of prepaid to the consumer?
LPU MPU
Multiple meters per account Multiple meters per account
High Accuracy meters: (typically 0.2 and
0.2S three phase CT meters)
High and Medium Accuracy meters:
(typically 0.5 to 1.0 three phase CT or DC
meters)
Positive Cash Flow – typically minus 15
debtor days due to prepayment
Positive Cash Flow – typically minus 15
debtor days due to prepayment
Data is instant – not waiting for 30 – 60
days for bill to arrive with post-consumption
meter data
Data is instant – not waiting for 30 – 60
days for bill to arrive with post-consumption
meter data
Real time account reconciliation Real time account reconciliation
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Large | Medium Power Users (LPU | MPU).
Larg
e |
Me
diu
m P
ow
er
Us
ers
(L
PU
| M
PU
)
What the benefit is of prepaid to the consumer?
LPU MPU
Real time complex tariff rating: TOU | Max
Demand etc
Real time complex tariff rating: TOU | Max
Demand etc
No manual meter reading and data capture
– reduces inaccurate billing to zero
No manual meter reading and data capture
– reduces inaccurate billing to zero
Meter tampering alerts and events –
reduce NTL
Meter tampering alerts and events –
reduce NTL
CT | PT ratio detection CT | PT ratio detection
Phase data measurement and detection Phase data measurement and detection
Meter Population: 1% Meter Population: 29%
Total Revenue: 50% Total Revenue: 30%
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Large | Medium Power Users (LPU | MPU)
50%
30%
20%
0%
10%
20%
30%
40%
50%
60%
1% 29% 70%
LPU
MPU
SPU
Meter Population
Reven
ue
Co
ntr
ibu
tio
n
Combined Revenue
Contribution – 80%
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• The benefits for LPU | MPU’s in a prepayment environment are:-
Larg
e |
Me
diu
m P
ow
er
Us
ers
(L
PU
| M
PU
)
Prepayment for Large | Medium Power Users (LPU | MPU)
LPU users can download and view online data in terms of real time
consumption , billing data etc
LPU consumer are able to plan according to real time data (e.g. when to
switch on their smelter etc)
Account reconciliation happens in a real time mode
No manual meter reading and inaccurate data
Tariff rating is done in real time and therefore they can determine their costs
despite the tariff codes being complex
Cash flow management – the customer can pay according to their cash flow
and consumption plan | Strategy, as well as optimise cost saving etc
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Small Power Users (LPU)
Sm
all P
ow
er
Users
(SP
U)
What the benefit is of prepaid to the consumer?
SPU
Multiple | single meters per account
Low Accuracy meters: (typically 1.0 single phase DC meters)
Positive Cash Flow – typically minus 15 debtor days due to
prepayment
Data is instant – not waiting for 30 – 60 days for bill to arrive with
post-consumption meter data
Real time account reconciliation
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Small Power Users (LPU)
Sm
all P
ow
er
Users
(SP
U)
What the benefit is of prepaid to the consumer?
SPU
Real time complex tariff rating: TOU | Max Demand etc
No manual meter reading and data capture – reduces inaccurate
billing to zero
Meter tampering alerts and events – reduce NTL
Meter Population: 70%
Total Revenue: 19%
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Large | Medium Power Users (LPU | MPU)
50%
30%
20%
0%
10%
20%
30%
40%
50%
60%
1% 29% 70%
LPU
MPU
SPU
Meter Population
Reven
ue
Co
ntr
ibu
tio
n
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Pre
paym
en
t
“C
en
tra
l W
allet”
Siemens Prepayment “Central Wallet” portal
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Pre
paym
en
t
Be
nefi
ts
Benefits of full Smart Metering AMI advanced revenue to the Utility |
Municipality
Benefits of AMI prepayment to Utilities | Municipalities are:-
Utility cash flow typically moves from 150 debtor days to minus 10 to 15
days
This means that the Utility gets cash in advance before electricity
consumption – thus allowing for growth planning and strategy.
Real time data is available to the Utility
Allows for planning, growth and value add support to the end consumer,
be it LPU’s | MPU’s or SPU’s
Grid control is enhanced as a real time view of load consumption and trends
is available.
Depending on the MDM, this type of data can be linked into a SCADA system
for grid control applications such as DRMS, Load Management etc
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Pre
paym
en
t
Be
nefi
ts
Benefits of full Smart Metering AMI advanced revenue to the Consumer
Benefits of AMI prepayment to the Consumer are:-
Improved cash flow – i.e. reduce debtor days?
Instant account and meter data visibility for the consumer – more consumer
centric control?
Ease of information and electricity payment: smart phone apps etc
Prepayment cash payments – link existing STS vending PoS to backend
system?
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• Current STS prepayment tariff code structure is based on tiered | linear or static
pricing.
• Post payment tariffs were difficult to include in prepayment purchases as most of
these tariffs require post consumption calculations as well as timing calculations
Time of Use (TOU)
Max Demand
Energy Charge
Network Demand Charge
• A prepaid Smart Metering AMI system is able to incorporate many different tariff
codes and structures as the data we receive on a real time basis allows for intelligent
tariff rating.
• Also, a Smart Metering AMI system is able to offer more complex tariff structures
than even the post paid billing allows for! All tariffs in an AMI solution are done on a
real time basis and real time reconciliation.
Pre
paym
en
t
Tari
ff R
ati
ng
How does a Utility introduce complex electricity tariffs into prepaid Smart
Metering AMI system?
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Sie
men
s A
dvan
ce
d
Pa
ym
en
t S
ys
tem
Siemens Advanced Payment System
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Siemens South Africa - Local expertise as
technical service provider through City of Tshwane project
Scope of Supply: Supply and installation of 13,000 smart electricity meter Set up of local datacenter and relocation of existing environment Release development of entire software applications as per contractual
requirements Managed back-end-solution (managed data center, managed applications) Managed services (field operation/investigation, field call-outs, reconciliations,
reporting, account/meter rectifications, network operations center)
Not responsible for: Rollout planning Operational analytics (e.g. identification of possible tampers) Grid infrastructure GPRS communication End-Customer interaction (e.g. Call-Center) Vending provider and payments Municipal interaction Revenue Management (Approval of account adjustments, Management of
disconnections)
Smart Metering
Back-End-Solution
siemens.co.zaRestricted © Siemens AG 2016
MDMHES PPES FWMS
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Smart-Meter Backend-Solution
Solution overview City of Tshwane
Read frequency: 15 minutes
System update: every 30 minutes
Delay between meter to cash: 3 hours
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Smart-Meter Backend-Solution
Application data flow
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Smart-Meter Backend-Solution
Data Center Infrastructure
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Smart-Meter Backend-Solution
Core Applications of the Solution
EnergyIP®
EnergyIP Prepay
Head End System – AMM+ / UDIS
Interfaces with meters to pull meter reads and events via secured connection. It also
triggers additional services like remote (dis)connections. AMM+ / UDIS stores raw data in
DB and pushes structured data to IEC adapter.
Meter Data Management System – MDM
Processes and analysis meter reads and events. It matches customer data with meter
data. After processing it forwards reads and event data to PPES via DTS (Data Transfer
Service).
PrePayment Energy System – PPES
Applies different tariff structures to consumption data and performs rating of consumption
data. It automatically triggers remote disconnect / reconnects as required via head-end
system. Provides customer usage and payment portal and performs customer wallet
deductions and recharges.
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Smart-Meter Backend-Solution
Smart Meters open a new era even where Prepaid Energy is already adopted
Balance | Wallet is managed locally at the pre-payment (STS) meter
Cost, complexity and reliability of pre-payment meters
Physical tokens (smart cards/keys) are required to transfer payment
Specific physical pre-payment meter needed
High NTL – no remote data access – manual access
No complex tariff codes – STS meter determines type of tariff rating
Traditional Prepaid Metering
Balance controlling is done in the back-office
Support of different payment methods, tariffs & incentives
Easy support both LPU’s and SPU’s – Remote disconnect | reconnect
Easier consumer access through a variety of channels to account and status
information
e.g. balance alerts, recharge & transaction history, consumption graphs
Remote change from postpaid mode to prepayment, no field activities needed
Reduced NTL | improved cash flow | security of revenue
Prepayment with Smart Meters
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Smart-Meter Backend-Solution
The key benefits of transforming to a digital smart meter solution
Key benefits for end consumers Almost real-time reads instead of once a month Improve your electricity usage and see direct improvement Maintain your balance and spending wherever you are (manage your own cash flow) Transparency of charging (correctness)
Closer interaction, get feedback on the grid and on your usage
Key benefits for utilities Demand management / Load management Revenue protection (non technical losses) Full cash flow positive – reduce debtor days to minus – i.e. total upfront cash flow Transparency of grid stability / faults Improved operational costs
Improved customer satisfaction
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• Typically in a utility, Water and Gas departments are very separate and no
interoperations between them are found from a billing perspective.
• Each department duplicates each other forcing high cost budgets such as:
field service engineers
support personnel
separate systems
separate billing
admin staff etc.
How do “Water and Gas Meters” interface into the same AMI Backend?
Sm
art
Wa
ter
an
d G
as
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• One of the most pressing issues to a utility or municipality is revenue collection and
profitability.
Electricity revenue is very important to both a utility and municipality as budget
allocation is very high.
In a water department, there are high costs with, normally, large revenue losses
and no profitability.
• Combining Electricity | Water and Gas Meters onto one system allows for:
Instant view of all the meters with one end user portal login.
Instant account and meter data visibility for the consumer – more consumer
centric control?
Ease of information and electricity payment using smart phone apps etc.
Improved cash flow – i.e. reduce debtor days?
Combined “Central Wallet” allows for easy revenue collection and security of
revenue
How do “Water and Gas Meters” interface into the same AMI Backend?
Sm
art
Wa
ter
an
d G
as
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Benefits of combining Smart “Electricity | Water and Gas” Meters S
mart
Ele
ctr
icit
y |
Wa
ter
an
d G
as
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Conclusion…….
Co
nc
lus
ion
With the growing acceptance of Smart Metering to provide real time big data, and
with Utilities in developing countries requiring a solution that caters for “security of
revenue”, the effectiveness of a well managed and run Smart Meter AMI
deployment needs to include the manageability of advanced payment (prepaid)
that enhances cash flow and profitability, reduces NTL, and adds huge value to
both the end user and utility itself.
Despite the huge capital expenditure (CAPEX) a Smart Metering AMI solution sets
back a Utility, in the long run it has far reaching benefits and features that justifies
the project. Return of investment can be easily justified for any Utiltiy
CAPEX can also be avoided in setting up and operating a Smart Meter AMI
Advanced Revenue Payment deployment by opting for an OPEX solution –
typically this is referred to as “AMI in the Cloud” or “Smart Metering as a Service”
(SMaaS) solution.
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Conclusion…….SMaaSC
on
clu
sio
n
SM
aa
SSmart Metering as a Service - SMaaS
The biggest benefit of a SMaaS solution is OPEX vs CAPEX cash flow spend.
Yes, the arguments by many Utilities are: “where is the data kept and also the
security of their data”. These questions and concerns can be answered easily, but
the reassuring point is that a Utility can engage with a “SMaaS” deployment at a
low base, i.e. they pay on a “meter-per-month” basis as and when they install a
smart meter. Later on they can invest in an “on-premise” solution.
Siemens South Africa is a global specialist for both on premise and “cloud” Smart
Meter AMI Advanced Revenue Payment deployments. We would love to share
more on our solution for those that are interested. Please visit our stand in the front
to discuss and view a basic demonstration.
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SMaaS.........C
on
clu
sio
n
SM
aa
S
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Contact
Martin Stur
Head of PLM CMMS & Industry Billing
Solution Line Management Smart Grid
Siemens
Vienna, Austria
Mobile: +43 664 80117 45549
E-mail: martin.stur@siemens.com
Martin Kuhlmann
Technical Sales Support Professional - Digital Grid SWS
Siemens (Pty) Ltd.
Johannesburg, South Africa
Mobile: +27 (72) 750 4497
E-mail: martin.kuhlmann@siemens.com