The moma project tested a smart grid system with decentralized energy generation, real-time communication between generation and consumption, and an important role for information and communication technologies (ICT). The project implemented a cellular system architecture with site grid cells, distribution grid cells, and system cells connecting an energy marketplace and grid control. Field trials involved 200 then 1000 customers and tested smart meters, time-varying electricity prices, and integrated energy generation and grid management. Results showed high availability of the ICT systems, detailed hourly own-price elasticity of up to 35%, and the system's ability to help stabilize voltage levels in the distribution grid. Customers expressed strong interest in continuing variable tariffs after the trials. The moma system architecture was

1. E-Energy-Project moma
Smart City Mannheim
CIGRE – Lisboa
2013, April 22
Thomas Wolski, Power Plus Communications AG

2. Beacon Project E-Energy
Paradigm Change in the Energy System
• Decentralized energy generation
• Real-time communication and
interaction between generation and
consumption
• Key role of ICT -> Smart Grids
• Centralized energy generation
• Few communication
in distribution networks
• Passive customers
• Subsidiary role of ICT

3. Beacon Project E-Energy
From the Beacons into Widespread Application

4. moma – project partners

5. moma Project idea
Real-time linking all Components making a Smarter Energy System

6. Centr.
Gene-
ration
Trans-
mis-
sion
Distribution Decentral
Generation
Customers
Market
Enterprises
Partners
Operation
Station
(local
automation)
Field
Process
Customer energy
managementsystem
(Energiebutler / BEMI)
Markets
Services
TSO DSO
EM DEA Storage
device
A
Substation Auto-
mation (Grid agent)
Role
System,
device
Aggregatore
(Market agent/
Pool-BEMI)
6
device
B
Source:
EU Mandat
490;
plus
moma
components
Moma: Regional and Cellular system
 Use Cases implemented
Smart
Meter

7. moma – Cellular energy system
Site Grid Cell
with
Energiebutler™
Distrubution
Grid Cell
with
Market- and
Grid Agend
System Cell
with
Energy Market
Place and Grid
Control
Energy
Information
In real –time
with BPL

8. moma System Model: site grid cell

9. moma – field trials
2. Practical trial
“Flexible electricity price”
Energy Butler
Demand-side management
(for all controllable household
loads, such as refrigerators,
washing machines)
200 customers
2010 2011 2012
1. Practical trial
“Innovative electricity meter”
Smart meters capable of
remote reading
Customer portal
(visualisation of
consumption/generation)
20 customers
Degree of complexity
3. Practical trial
“Intelligent energy grid”
E-Energy marketplace
with new trading functions for
decentralised plant operators,
suppliers, grid operators etc.
Management of
decentralised generators
1000 customers

10. Interim Results – Customer Survey
© IFEU 2011
Can you imagine to pay a price for your electricity
consumption data and its visualization?
© IFEU 2011

11. RESULTS: field prooven system
Cellular moma system architecture – field proven!
Availability of the system
BPL system BPL incl. Backbone End-to-End
BPL* = Broadband Powerline

12. RESULTS: detailed analysis of
own-price elasticity
Up to 35% own-price elasticity
Own-price elasticity by group
Daytime
Own-priceelasticy

13. Without control
With control
Current[p.u.]
RESULTS: Voltage control by grid agents
Current[p.u.]
Max. current
Min. current
Range of tolerance
Voltage control of many interacting distribution grid cells

14. 0%
10%
20%
30%
40%
50%
60%
Ja Vielleicht Nein
Question: Would you like to use the moma tariff or a
comparable one after the end of the field trial?
Kontrollgruppe
Versuchsgruppe
Yes Maybe No
RESULTS: Acceptance of variable tariffs
Customers are showing a high demand for a variable tariffs!
Control group (n=78)
Moma particippants (n=296)

15. Variable / dynamic
tariffs have
economic benefits for
customers and
countries
High demand
for dynamic
tariffs
Moma systeme
architecture is
transferable
from electricity to
other fuels Detailed hourly
own-price
elasticity
moma system can
help to stabilise
the voltage level in
the grid and zu
relive the grid from
stress
Our results – project highlights

16. Thank you!
Thomas Wolski
Power Plus Communications AG
www.ppc-ag.de
t.wolski@ppc-ag.de
Questions?