smart metering concepts and trends in...
TRANSCRIPT
Smart Metering Concepts and Trends in Germany EGATEC, Copenhagen, May 12th/13th, 2011
Manfred Hoppe, Peter Schley
Motivations for Smart Metering
Political Energy efficiency / CO2 reduction Pricing transparency / consumer protection
Energy suppliers Improvement of the billing process
New possibilities for customer service
and sales products . . . to bidirectional communication
From manual data reading . . .
Smart Metering – Regulatory Framework in the EU/Germany
Customer is entitled to demand “smart meters” for metering electricity, gas, district heat, water and hot water consumption
EU Directive 2006/32/EU Art. 13
From 1 January 2010, obligation to use “smart meters” in new or
extensively renovated buildings German Energy Industry Act
Sec. 21b (3a) . . . or in existing metering
systems if requested by the customer
Sec. 21b (3b)
Right of customer:
energy suppliers are obligated to make out intra-year invoices if requested by the customer
German Energy Ind. Act Sec. 40 (2)
Obligation of energy suppliers:
tariffs depending on load/ time of day to be introduced
for electricity end users by 30 December 2010.
German Energy Ind. Act Sec. 40 (3)
Condition: if technically feasible and economically reasonable
EU Directive Transposed into National Law (I) Sec. 21 of German Energy Industry Act:
From 1 January 2010, meters “....that reflect the final customer's actual energy consumption and that provide information on actual time of use”
Electricity meter
Gas meter
EDL 21 meter as minimum standard
- Meter with additional or integrated display showing consumption of preceding day / week / month in kWh
- No remote meter reading, but interface available
- Meter with additional or integrated display showing consumption of preceding day / week / month in m3
(kWh not necessary)
EDL 21 meter costs are accepted as operating expenses in the regulated market.
→ More specific requirements in position paper of Federal Network Agency
EU Directive Transposed into National Law (II) Sec. 40 of German Energy Industry Act:
From 1 January 2010, suppliers are obligated to bill energy costs for periods not substantially exceeding twelve months. If the customer wishes, the supplier is obligated to invoice the customer on a monthly, quarterly or half-yearly basis.
→ Remote meter reading is an economically viable option for billing periods shorter than one year.
Remote billing
Smart meter
Solution: smart meters with remote meter reading EDL 40 meter
EDL 40 meter costs are not accepted as operating expenses in the regulated market.
Smart Residential Gas Meters Type of meter Manufacturer Features
Diaphragm meter - Elster Kromschröder
- Itron
- Flonidan
- and others . . .
• Mechanical measurement principle • Reliable, low price • Current trend towards replacing mechanical by
electronic counters • Remote meter reading option
Thermal meter
- Diehl Gas Meter • Thermal mass flow measurement • MID-approved • Measurement principle dependent on gas
properties; only for H-gas • Acceptance currently limited
Ultrasonic meter
- Landis and Gyr
• Measurement of ultrasonic wave transit times • Costs still a disadvantage • May be competitive in smart metering
applications • Meters being launched
Smart Metering System Overview
Metering
Data presentation options for customer Separate display
PC communication
Control center/ data acquisition &
management
Electricity (master)
Gas Water
Smart Metering – Communication Concepts
M-bus (cable or wireless)
Webservice for
customers
Inhouse PC-communication Internet
Control center/ data acquisition &
management
GPRS
Data concentrator
Communication via power line
Alternatively
(e.g. at transformer
station)
GPRS
Smart Meter Communication with Multi-Utility Controller
M-bus (cable or wireless)
Webservice for
customers
Separate display
PC communication Internet
Control center/ data acquisition &
management
GPRS
Data concentrator
Communication via power line
(e.g. at transformer
station)
Multi-utility controller (MUC)
Smart Meter Communication with Multi-Utility Controller
GPRS
Multi-utility controller
(MUC)
M-bus wireless M-bus cable
Power line
Ethernet/ IP interface
Home network
Separate unit dedicated for meter data communication Connectivity for electricity, gas,
water und heat meters by M-bus cable or wireless WAN communication options
GPRS or power line IP interface for customer
applications Use of protocols selected for future
European standardisation
10,000 Meter Pilot Project of E.ON Bavaria Web application
Select time period
Display consumption
(approx. 1,000 gas meters)
Experience from E.ON 10,000 Meter Pilot Project
Customer acceptance Over 90 % of the – voluntary - participants in the pilot project are
interested in the further use of the smart meter system Transparency of consumption and costs is the main focus and has higher
priority than potential energy savings Regarding consumers as a whole, only a minority is interested in smart
meter services, especially when additional costs are to be expected Privacy protection issue In Germany, energy consumption data are subject to privacy regulations;
thus encryption methods are necessary for data transfer and data processing EDL21 meter displays open to third parties must be protected, e.g. by PIN
code
Vision: The Intelligent Home as Part of a Future Smart Grid Webservice for
customers
Internet
Control center
Electrical appliance 1 Demand side
management
Communication gateway
Grid operator “virtual power
plant“
Decentralised electricity generation
(µCHP)
Gas grid Electricity grid
el. generation
El. consumption El. feed-in
Electrical appliance 2
Smart Metering: Conclusions
Standardisation is necessary and on the way according to EU mandate Country-specific conditions and regulations for the implementation of
smart metering will remain in Europe, influencing the cost / benefit relation Customers, energy suppliers, and grid operators are main stakeholders in
smart metering technology, each of them pursuing their own interests Potential benefits of smart metering gas are lower than benefits of smart
metering electricity Smart metering communication is the nucleus for future smart grid
communication
Thank you for your attention