Gestión de micro redes y la experiencia en Alemania

Microgrid Management in existing grids and for off grid solutions

Mr. Thomas Eberl (M.Eng.)

BogotáMay 2016

egrid - Thomas Eberl 2Bogotá - el 5 de Mayo de 2016

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”

Microgrid Management

egrid - Thomas Eberl 3

We are here:

Bogotá - el 5 de Mayo de 2016


We are here: Allgäu Region

1,600 km2 area210,000 population

7,600 PV generators 162 MWp (STC)

88 distributed battery storage systems1.8 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 2016Source: AllgäuNetz GmbH


Renewable Energies in the Allgäu Region

10:00

10:1510:30

10:4511:0011:15

11:3011:4512:0012:15

12:3012:4513:0013:1513:3013:45

14:0014:1514:3014:4515:00

15:1515:3015:45

16:0016:1516:3016:4517:00

-60

-50

-40

-30

-20

-10

0

10

fed

back

ene

rgy

[MW

]2009: 1 event 2010: 3 events 2011: 21 events 2012: 53 events 2013: 34 events

Data of: October 2014Source: 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 villagesource: Allgäuer Überlandwerk

Battery energy storage system in Wildpoldsriedsource: 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.

IREN2Microgrid


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.

IREN2Microgrid

egrid - Thoatmas Eberl 26Bogotá - el 5 de Mayo de 2016

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

egrid - Thomas Eberl 30

Microgrid

Control

Bogotá - el 5 de Mayo de 2016

Microgrid: Energy Islandpublic 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

http://www.egrid.de/


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 [email protected]

[email protected]

Gestión de micro redes y la experiencia en Alemania

Economy & Finance

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