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Energy storage is key – which role willbattery storage play in the energy business?Alexander Peschl, Sales & Business Development Energy Management CEE

Unrestricted © Siemens AG Österreich 2016. All rights reserved.

June 16, 2016 Alexander Peschl, RC-AT EM S

Energy Storage is key –but when will it be available?

“Storage is key. Any new technology in mass storage would be extremely interesting.Here is nothing on the horizon in the next ten years that will solve this. There have beenimprovements, but nothing in the pipeline that will structurally change the picture orrevolutionize it.”

Karl Rose, World Energy Council’s Director of Scenarios



Energy storage technologies and application areas

Thermal storage

Mechanical storage

Electrochemical storage

Chemical storage

CAES – Compressed Air Energy Storage

1 kW 10 kW 100 kW 1 MW 10 MW 100 MW 1,000 MW

Dual film capacitorSuperconductor

coil

Min

utes

Seco

nds

Hou

rsD

ays/

mon

ths

Li-ionNaS batteries

Redox flow batteries

H2 / methane storage (stationary)

PumpedHydro

Technology

Flywheel energy storage

Time in use• Know-how in different battery

technologies and chemistries• Designed for the use of

various battery suppliers• Technical data depending on

supplier• Maximum savings through

optimized plant operation

Electrical storage

Diabaticadiabatic CAES

Thermal

Maturity

Commercial

Early

Demo

Concept

SIESTORAGE



Typical storage applications for SIESTORAGE

Peak load managementFrequency regulation

Critical power

T&D deferral

Power quality

Diesel offset / microgrid

Integration renewables



SIESTORAGEThe best application is a combination of various use cases

APPLICATIONS USE CASES

Electricity supply formicrogrids/stand-alone grids

• Black start• Ramping control• Time shifting• Capacity firming• Diesel offset• Frequency regulation (Primary Control Reserve)• Peak load management

Electricity supply for industry• Black start• Backup energy• Diesel offset• Peak load management

Integration of renewableenergy

• Ramping control• Time shifting• Capacity firming

T&D upgrade deferral• Peak load management• Ramping control• Frequency regulation



Samples of Siemens SIESTORAGE References

SIESTORAGELi-Ion Energy Storage

Microgrid withEnergy Storage

Blackstart ofGasturbine

Peak-LoadManagement

Integration ofRenewables

Power QualityFrequency Control &other Grid Services



Projects and references in Europe

Italy

Germany

Finland2015 Helsinki; Renewable Integration Test Plant; 118 kVA / 45 kWh

UK2015 Manchester; Research & Test Plant; 236 kVA / 180 kWh

Germany2015 Sindelfingen; Renewable Integration; 360 kVA / 180 kWh

2015 Flein; Renewable Integration; 118 kVA / 135 kW

2015 Eisenhuettenstadt; Black Start; 2.8 MVA / 720 kWh

Italy2015 Expo Milano; Smart Grid Test Plant; 354 kVA / 135 kWh

2015 Roma; Renewable Integration & Smart Grid; 118 kVA / 45 kWh

2015 Ventotene; Island/Microgrid Application; 500 kW / 600 kWh

2015 Sardinia; Storage Lab Test Plant; 1 MVA / 500 kWh

2014 Sicily; NAS Storage Test Plant; 12 MW / 82 MWh

2012 Isernia; Smart Grid Test Plant; 1 MVA / 500 kWh

Portugal2015 Evora; Smart Grid Integration; 472 kW / 360 kWh

Finland

UK

Portugal

- ~ 20 MW storage projects

- Variety of customers:Grid operators, utilities,industries and ports

- Variety of applications:Islands, Diesel offset,renewable, integration,black start, shore-to-shipconnection



Reference: Island of Ventotene (Italy)Grid independence and integration of renewables

Power: 500kVA - Capacity: 600kWhSIESTORAGE battery energy storage system,accompanied by a Microgrid Management

Controller• To provide electricity to nearly 750 people

outside the tourist season (instead 4 dieselengines, 600 kVA),

• to manage electricity from PV during periodsof low load,

• to benefit from renewable energy in thisisland outside the sunny season.



A green alternative to backup diesel generation

• Address grid inconsistencies• Minimize fuel costs and fuel supply chain

challenges• Reduce ramping and ensure that smaller

machines run closer to their operational designcharacteristics

• Consistent power quality• Optimization of load and generation• Reduction of CO₂ emissions



Challenges

Solution with SIESTORAGE

§ T&D grids can experience a partial or total system failure§ Conventional generators cannot receive power from the grid to restart

and an external power supply is required§ The frequency of conventional generators has to be synchronized to

that of the grid.§ In some countries, black start is a mandated service required by grid

operators

§ Faster reaction time than local generators to provide power betweenthe event of a failure and the backup power supply coming online.

§ Providing the power quality required by the generator to bereconnected to the grid

§ Avoiding of expensive costs (e.g. missed production) due to a blackout

SIESTORAGE provides power supply for thestarting motor of the gas turbine after a blackout.

SIESTORAGE2,8MVA, 1,2MW – 1080kWh

1. Modular battery storage system2. Starting motor of the gas turbine3. Earth gas turbine4. Off-grid / factory grid5. Public grid6. Integrated iron and steel works7. Blackout on local grid

Reference: VEO (Vulkan Energie Oderbrücke GmbH),Grid independence for steel works



Reference Sample – Blackstart of Gasturbine (VEO)

Reference Sample: VEOPower: 2,8MVA Capacity: 1.080kWh



Reference: Siemens Workshop (Germany)Peak load management

Power: 1.125kVA - Capacity: 1.645kWhSIESTORAGE battery energy storage system,accompanied by a SIMATIC Powerrate Controller• to provide fast response energy to enable peak-

load power management• to improve flexibility of heat treating operations

and implement load management control• to shave load-curve (1/4h value) by load-shifting

to keep power supply from grid under limit• to reduce energy bill by lowering grid fee tariffs



Future deployment of energy storage is mainly influencedby regulatory requirements and cost development

0

20

40

60

80

100

120

140

2000-09 2010 2011 2012 2013 2014 Q12015

North American grid-connected batterydeployment, 2000-Q1 2015

(nameplate capacity in megawatts)

OthersLi-IonQuelle: Eigene Darstellung

0

200

400

600

800

1000

Cost of usable storage capacity 2013-2030 (US$ per kilowatt-hour in 2015

real dollars)

Base CaseQuelle: Eigene Darstellung nach IHS

Cost of grid battery storage is decreasingBattery deployment is shifting to lithium-ion



Tesla as a game changer for battery storage ?

Tesla Energy for Utilities

30 April 2015:



Chemical storage versus electrical storage ?Electrolyzer basic system SILYZER 200-1

• Siemens has established the businessunit “Hydrogen Solutions” to develop andindustrialize PEM electrolyzer systems

• 2018 SILYZER 300 is planed in therange 10 until > 100 MW.

• Siemens supports the roll-out of H2-refuellinginfrastructure as member of the„Clean Energy Partnership“.

• Siemens will be system provider(electrolyzer systems) for the future H2-fuel scenario

àHigh system availability, optimalintegration, low TCO, Remote operationand condition monitoring



SILYZER produces hydrogen as a multi-purpose energycarrier for industry, mobility and grid services

H2 production: no CO2, independent, efficient , onsite

• Chemical synthesis (e.g. ammonia, fertilizer, methanol)• Petrochemical processes (e.g. cracking)• Flat glass, nonferrous metal (protective and reductive gas)• Food & Beverages (hardening)

H2 application: a sustainable fuel for transport concepts• CO2 free mobility; Renewable fuel concepts• Sustainable and pollution-free Public Transport• Fuel Cell based in-plant logistics (forklifts, floor conveyors)• Reliable, safe e-mobility: “fast-to-refuel” cars with long ranges

H2 conversion: stabilizes the power grid• Grid balancing capability (dynamical behavior in milliseconds)• Optimization of asset utilization in renewable energies• Storage of medium- and long-term overcapacities (TWh)• Power-to-hydrogen and Power-to-gas as future key concepts



• Location: Mainz-Hechtsheim (DE)• Three high performance electrolysis

systems with peak power of 2 MW el.each (6 MW peak)

• Connection to 10 MW wind-farm• 1000 kg storage (33 MWh)• 200 tons target annual output (Trailer-

filling station and injection into local gasgrid)

• Highly dynamic operation over broadload range (ramp speed 10% per sec.)

• Budget: ~17 Mio. €• Support: ~ 50% (BMWi)• Period: 4 years

(10/2012 – 12/2016)

Energiepark Mainz – Project scope and key facts



New business models – StoREntThe risk free solution to investigate storage applications

StoREntRent-a-Storage SystemIncreasingly viable storage applications

• Ancillary services

• Grid stability

• Peak shaving & Time shifting

Perceived investment risk• Complex, individual business cases

• Engineering expertise to design the electricpower system and to connect it to the grid

• Changing regulatory framework

Increasing cost efficiency and operationalperformance of storages

• Application evaluation

• Gain in experience

• No tied-up capital

www.storent-systems.com

Challenges



Size Power / Capacity

S small 250 kW; 250 kWh

M medium 500 kW; 500 kWh

XL large 1 MW; 1 MWh

StoREntOne stop shopping service packages

Modular storage systems Comprehensive services• Analysis

• Consulting, logistics, training

• Technical service, application based

services

• Monitoring and evaluation

• System testing

Complete storage systems• Energy management system• Fully security-tested and certifed system

• LV and MV distribution equipment• Power electronics, auxiliary components, control and monitoring



Distributed storageCaterva – We Network the Sun

A large "swarm" serves the grid

Balancing supply and demand is well paid

Selling the aggregate power to TSOs

~60 Energy Storage Systems make One MW

Distributed energy supply and storage based on ahuge installed photovoltaic base where mandatorygrid stability gets more difficult and storage systemsare the key to the future with a unique model to makestorage profitable

Energy storage systems as business opportunity.

Distributed and synched energy storagesystems to a large swarm makes abusiness

Homeowners look for more independency and can participate on the market.



Storage as a serviceDie Strombank – MVV Energie AG

Account Model Description

Giroaccount

Buffering excess electricity / ownconsumption

Investaccount

Electricity market / aggregation

Quarter account Electricity trading in the neighborhood /locally added value

Exchangeaccount

Operating reserve / technical potential ofthe storagePV

Electricity is stored in a safe – every participant has access to the safe at any time.



Shifting from cost to value –recommendations from WEC

Wide variation in storage costseconomies of scale and improvements in manufacturing will bring costs downfurther over the next couple of years

Context matterseconomic analysis of storage applications should be assessed on acase-by-case basis

Storage creates additional value through its function to level the loadenabling deferral of grid investments and creating the possibility of price arbitrage

Source: World Energy Council - E-storage: shifting from cost to value, 2016



Thank you for your attention

Come and visit us on www.siemens.de /siestorage

Alexander PeschlEnergy ManagementWind PowerSiemensstraße 901210 ViennaPhone: +43 (0) 51707-25909Mobile: +43 (0) 664 80117-25909E-mail: [email protected]

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