SIESTORAGE Electrical Energy Storage by SIEMENS · SIESTORAGE Electrical Energy Storage by SIEMENS Robert Klaffus Director Baja y Media Tensión . ... different application areas

II Congreso eficiencia energética eléctrica

Madrid 24 octubre 2012 IFEMA – Auditorio Sur

SIESTORAGE Electrical Energy Storage by SIEMENS

Robert Klaffus Director Baja y Media Tensión


Madrid, 24 octubre 2012 IFEMA – Auditorio Sur

Índice

1 Challenges for the power supply today and tomorrow

2 Further challenges for all aspects of the power supply

3 Storage technologies – Examining the options

4 SIESTORAGE - The modular energy storage concept



Challenge through change Modern power production – Stable power systems?

Distributed power generation Consumers become generators Photovoltaics Self supply/infeed

Energy storage

Smart grids and equipment Netzausbau

Technology for

flexible generation (e.g. peaker power plants)

Solutions

Required: Power system stability Output

Time

Load

Overload

Underload

Renewable energy Production incalculable Wind turbines Large solar power plants

Grid expansion



Challenge through change Future prospects for the energy architecture

The task: Using renewable energies

Source: Bundesverband WindEnergie, EEG, Team Thermal Storage, Source E ST MC / SR 2011 / Basic case 1 – 9 % of production (26 % of the installed base) from volatile renewable energy sources 2 – 31 % of production (54 % of the installed base) from volatile renewable sources, assuming maximum grid expansion “Copper sheet“ modell)

Smart Grid

Expansion of grid

Energy storage

Flexible conventional

power generation

A solution approach: Energy storage

Today’s challenges ... Germany 2010: Up to 150 GWh of potential

wind energy production is capped due to overloading

United States, TX 2009: 17% of potential wind energy production is capped due to overloading

… will be even greater tomorrow: Germany 2030: approx. 24,000 GWh of excess

energy expected! EU 2050: 80 % of energy production is to come

from renewable energies according to proposed legislation



From conventional generation and distribution to challenging networks with distributed/renewable generation

Conventional electricity generation and distribution

This means: Electricity supply generated with conventional generators ensures system stability.

The available short-circuit power is an indicator for power system stability

Provides adequate short-circuit power It is important to note that:

Generation from wind and solar Leads to considerable fluctuations in

generating output Causes imbalance between

generation and load Is stochastically dependent on the

weather

This means: No short-circuit power + Variation between generation/load Low power system stability



Challenge through change A green solution: Energy storage

Modern power supply is a big challenge … Energy storage is an intelligent solution.

Example: Stabilization of a radial system fed with renewable energy

U

Charging

Discharging Cloud

Adequate balancing energy available Active and reactive power compensation Uniform load of the power network



Further challenges in today‘s and future power grids

Energy efficiency – a major objective

Scenario: Partial or complete collapse of the power supply system Action: Strategic plan of action (of the transmission network operator) Start-up of the first generating plant without external power supply (black start) Self-supply and adjustment of the separate network / sub-network in the starting phase Current solution: Usually pumped storage and run-of-river power plants Problem: Not available everywhere Eco-friendly solution: Black start with battery-based energy storages

Fault-free and interference-free power supply Avoidance of expensive peak loads Permanent reduction of energy consumption, also important especially for industrial companies,

building and infrastructure operators

Restoring power supply



Storage technologies: different application areas and advantages of SIESTORAGE

Source: Study by DNK/WEC „Energie für Deutschland 2011“, Bloomberg – Energy Storage technologies Q2 2011 CAES – Compressed Air Energy Storage

1 kW 10 kW 100 kW 1 MW 10 MW 100 MW 1.000 MW

Dual film capacitor

Supercon-ductor coil

Min

utes

Se

cond

s Ho

urs

Days

/mon

ths

Li-ion NaS

batteries

Redox flow batteries

H2 / methane storage (stationary)

adiabatic

diabatic CAES Water pumped

storage

Mechanical storage

Electrochemical storage

Electrical storage

Chemical storage

Maturity

Technology

Commercial application

Market launch

Demonstration

Flywheel energy storage

SIESTORAGE

Time in use

+

+ + Charging/discharging at constant power 2-4 times higher C rate than other battery technologies High energy density Total discharges possible, negligible self-discharge, no memory effect

Recyclable & eco-compatible Optimum operating temperature 25°C to 45°C



SIESTORAGE The modular energy storage concept

Four modules – One intelligent solution

SIEMENS ENERGY STORAGE

Medium-voltage switchgear

SIPLINK power electronics

Li-ion battery module

+ + =

+ Converter transformer



SIESTORAGE Modular energy storage concept in application

Powerful combination:

Cutting edge power electronics + high-power Li-ion batteries

Variable through modularity: In power and capacity With parallel connection of combined energy storage cabinets on the AC-side

Adequate capacity: up to about 2 MWh

Top performance: Modular up to about 8 MW

Grid

AC/DC inverter

Filter

Transformer

Medium-voltage switchgear

Li-ion battery system n

cells

in

serie

s SI

PLIN

K

Smart Network Control

System control

Inverter control

Data logging

Battery management



SIESTORAGE Modular structure

Battery module

Battery management

Einschub für 7 Batteriemodule

Einschub für 7 Batteriemodule

SIPLINK converter

Combined energy storage cabinet (batteries + converter) for up to 16 battery modules up to 24 kWh / 144 kWp

Drawer for up to 8 battery modules

Drawer for up to 8 battery modules

Power connection cabinet Control cabinet

(controlling of energy and power flows)



SIESTORAGE As modular container solution

Application example SIESTORAGE: As modular solution in a container L x W x H = 15 m x 2.5 m x 3.2 m 500 kWh / 2 MVA

Batterie- schrank

Batterie- schrank

Batterie- schrank

Batterie- schrank

Batterie- schrank

Batterie- schrank

Batterie- schrank

Batterie- schrank

Batterie- schrank

Batterie- schrank

Steuerungs- / Regelungs- und Netzanschluss-

schrank

Batterie- schrank

Batterie- schrank

Batterie- schrank

Batterie- schrank

Batterie- schrank

Batterie- schrank

Batterie- schrank

Batterie- schrank

Batterie- schrank

Batterie- schrank

Steuerungs- / Regelungs- und Netzanschluss-

schrank

Energy storage cabinet





Cpen-/closed- control cabinet

Power connection cabinet
















Open-/ closed-control cabinet

Power connection cabinet



SIESTORAGE Modular container solution

Usable capacity* Usable capacity* 16 kWh to 24 kWh depending on battery type

48 kWh to 72 kWh depending on battery type

Rated power Rated power 32 kW to 96 kW depending on battery type

96 kW to 288 kW depending on battery type

Usable capacity* Usable capacity*

80 kWh to 120 kWh depending on battery type

Up to 500 kWh in standard container

Rated power Rated power 160 kW to 480 kW depending on battery type

1 MVA to 2 MVA depending on battery type

Modular structure: Various configurations and storage sizes possible

* The usable capacity is guaranteed to the end of the service life

The advantages of the modular design Different configurations and storage sizes possible

No need for balancing between cabinets

High reliability & availability

Easy to maintain



SIESTORAGE Pilot plant in Italy

Connection to medium-voltage system of Italy’s largest power distributor: ENEL Power output: 1 MVA Capacity: 500 kWh Application:

Handover of pilot plant: February 2012

Frequency control Integration of photovoltaic plants Fast charging station for electric vehicles Black start capability



An intelligent, flexible and green solution for numerous applications

GRACIAS POR SU ATENCIÓN


Madrid 24 octubre 2012 IFEMA – Auditorio Sur

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SIESTORAGE Electrical Energy Storage by SIEMENS · SIESTORAGE Electrical Energy Storage by SIEMENS Robert Klaffus Director Baja y Media Tensión . ... different application areas