Gestión de micro redes y la experiencia en Alemania

Microgrid Management
in existing grids and for off grid solutions
Mr. Thomas Eberl (M.Eng.)
Bogotá
May 2016

Bogotá - el 5 de Mayo de 2016 egrid - Thomas Eberl 2
1. Motivation for intelligent planning and operation of a Smart Grid
2. Project IRENE leads to the egrid strategy
3. Project IREN2 – the Microgrid solution
4. Projects in Colombia – Microgrid “Energy Island”

We are here:
egrid - Thomas Eberl 3Bogotá - el 5 de Mayo de 2016

We are here: Allgäu Region
1,600 km2 area
210,000 population
7,600 PV generators
162 MWp (STC)
88 distributed battery storage systems
1.8 MW power

The Renewable Energies and the German Energy Transition changes the
system of energy generation and distribution. Further the distribution
network operators (DNO) are becoming Smart Grid operators.
- What are the changes caused by renewable energies?
- What means intelligence in the network?
- Which types of smart grid components are already available?
- How can intelligent Microgrids as parts of existing grids and for
off grid areas be helpfully in the future?
Situation and Motivation

Renewable Energies in the Allgäu Region
Data of: May 2016
Source: AllgäuNetz GmbH

Renewable Energies in the Allgäu Region
-60
-50
-40
-30
-20
-10
0
10
fedbackenergy[MW]
2009: 1 event 2010: 3 events 2011: 21 events 2012: 53 events 2013: 34 events
Data of: October 2014
Source: AllgäuNetz GmbH
2014: 48 events
max -72 MW; 17.08.14
Amount and level of the renewable power injection to the European 220kV network

… to minimize costs for grid expansion
Conventional grid expansion in low
and medium voltage level of Germany
will cost until 2030 approx. 16 bn. €
Why do we think today about smart grids
Costs for grid expansion until 2030 sorted by voltage level
“Verteilnetz Ausbaukosten bis 2030 nach Spannungsebenen”
Source: DENA Verteilnetzstudie 2012
… to avoid voltage band violation and
system overloading
Voltage band violation in the low voltag grid
„Spannungsbandverletzung in der Niederspannungsübertragung“
Source: Georg Kerber - TU München

… to be able to implement new technologies like electro mobility (EV) and
stationary energy storage systems usefully in the grid
30 electric vehicles (EV) in one village
source: Allgäuer Überlandwerk
Battery energy storage system in Wildpoldsried
source: Hochschule Kempten

… the share of decentralized renewable energies will rise and
approx. 90% of the renewable energies feed in the distribution grid.
… new technologies (EV and batteries) will be integrated in the distribution grid
… for distribution grids are almost no measurement data available and therefore
only few insight in voltage band violations and operational equipment overload
Upcoming changes in the grid need measurement data as a base for
intelligent actions

• Project IRENE: “Integration of renewable energies and electro mobility”
• Project IREN2: “Intelligent power grids, Microgrids and battery storages”
Both Projects in the town Wildpoldsried
 Rural area – approx. 2500 habitants
 High percentage of renewable energy feed in (P = 8.175 MW)
(situation in 2011 comparable with expected status of 2020 in Germany)
 produces 2.5 – 3 times more energy than they use
Research projects

Intelligent methods and components
Solar potential analysis, based on
high definition 3D aerial pictures
Benefits for the active grid planning by optimization of the simulation parameters
High solution measurements in the
MV and LV level

Intelligent methods and components
Controllable distribution transformer
(rONT)
Benefits for stabilizing the grid voltage and smoothing PV peaks
Stationary battery energy storage system

• More than 30% reduction of the grid expansion costs
(in total 3.2 Mio. €/a)
• The gird is able to supply approx. 10,000 electrical vehicles in the Allgäu
region (Scenario 2020: 1 Mio EV’s in Germany)
• Stationary battery storage systems can be integrated usefully in the
distribution grid
Benefits of intelligent methods

egrid offers
Clever grid planning Measurement Cellular control
Project coordination
Cost cutting

The Energy Transition and the upcoming Nuclear Power phase-out
changes the energy production and distribution systems:
fewer big scale power plants results in a reduction of services like
• Reactive power supply
• Black start capability after an error
Questions in the project IREN2:
• Can grids with a high penetration of renewables run autonomously?
Microgrid in island operation approach
• Can these kinds of grid areas replace large conventional power plants?
Topological power plant
Motivation for Microgrids in Germany

Microgrid in Wildpoldsried
The existing grid was expanded:
Control technology, battery storage systems, flexible and
converter-controlled DC-link between MV and LV level,
synchronization and protection equipment,
two back-up generators (vegetable oil and biodiesel)
Research objectives:
• Operation as an island grid –
disconnected from
the main grid
• Utilization of the Microgrid as a
topological power plant (provision
of ancillary services)
• Stable and economically optimized
grid operation
IREN2 is the first Microgrid test of its kind outside of
a laboratory.
IREN2
Microgrid

Microgrid – island operation
What a Microgrid provides:
• Plants have to ensure grid stability
at all times – particularly with
fluctuating power infeed from solar
and wind power.
• A control system maintains the
balance between generation and
consumption – this provides for
autonomous operation.
Renewable and conventional energy production
units form a hybrid structure. This ensures grid
stability and optimizes efficiency during operation.
A Microgrid enables the profitable use of renewable
resources independently of the supply grid.

Microgrid – topological power plants
A Microgrid provides ancillary services from the
distribution grid for the market.
What a topological power plant provides:
• The potential for ancillary services is
predicted.
• If ancillary services are agreed upon, the
Microgrid has to be capable of supplying
them at any time.
• A control system ensures that the
distributed energy sources provide
ancillary services in addition to normal
operation.
At times the Microgrid can replace conventional
power plants by supplying ancillary services.
IREN2
Microgrid

Bogotá - el 5 de Mayo de 2016 egrid - Thoatmas Eberl 26
All applications tried and tested in Germany‘s Allgäu region could be used
in other applications world wide:
IREN2 : Results are Worldwide transferable
• Rural areas with an increasing demand for
energy
• Geographic islands and
• Regions without grid connection
• Self-contained industrial grids
The grid planning and optimization
strategies could be used for any grid…

• Development PPP Project – application pending
• Partner:
• Microgrid Management
• Intelligent integration of renewable energies in existing grids
• Integration of measurement devices into the grid
• Management of generation and consumption (Energy Island)
• Intelligent grid planning according to new strategies
• Start in 2016
• Using regenerative potential of Colombia
• Biomasses for the biogas generator which are typical in Colombia
• Solar and Wind power potential is large
Project: Energy Island

Microgrid
Control
Microgrid: Energy Island
public gridrenewable generation prosumers
Biogas
controllable
Fluctuating generation
Large Battery
Storage System
Industry with
Battery System
Power Lines Heating system Biogas network
Households with
Battery System
Biological
residues

Thank you for your attention
Visit our smart grid cell in Wildpoldsried (Germany).
 www.egrid.de or +49 831 960 754 0
“Bavaria goes global “ (03 – 09 July 2016)
Colombian Expert Information Seminar and Technology Tour
to Germany including Wildpoldsried

Contacts
“Bavaria goes global “
(03 – 09 July 2016)
Colombian Expert Information Seminar
and Technology Tour to Germany
including Wildpoldsried
For further information please contact:
GIZ State Office Bavaria
Doris.Beck@giz.de
Birgit.Keim@giz.de

Gestión de micro redes y la experiencia en Alemania

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