hydrogen as a multi-purpose energy vector - siemens · 23/04/2014 · hydrogen as a multi-purpose...

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Hydrogen as a multi-purpose energy vector

Gaelle Hotellier

Siemens Future Forum @ HANNOVER MESSE 2014


2014-04-23 Gaelle Hotellier

• There is no universal solution for electrical storage

• Large scale storage can only be addressed by

pumped hydro, compressed air (CAES) and

chemical storage media like hydrogen and

methane

• The potential to extend pumped hydro capacities

is very limited

• CAES has limitations in operational flexibility and

capacity

Key statements

/ methane

Hydrogen is the only option to implement energy capacities > 10 GWh

Options to address large scale “grid storage” are limited

Segmentation of electrical energy storage

large-scaleenergy storage

Hydrogen / methane

Redox-FlowBatteries

Batteries

Supercapacitor

Super-conductive

magnet

Flywheelstorage

Pumped Hydro

CAES



H2 drives the convergence between energy & industrial markets

PEM electrolysis enables conversion of electrical into chemical energy

Generation ApplicationConversion/storage

Photo-voltaics

Windpower

Conventional Constant electricity

generation

Grid

PEM electrolysis

Fluctuating electricity

generationGas pipeline Gas-fired

power plant

Fuel-cell vehicle

Industry

Mobility

Industry

Energy

H2 storage

Direct use without storage

MethanizationCO2 utilization



• High dynamic performance

• Compact design, small footprint

• Simple cold-start capability

Electrolyzer type PEM

electrolytepolymer membrane

separator

catalyst platinum + others

frame + bipolar plate metal sheet

* Proton-Exchange-Membrane

Key statements

1

2

3

4

PEM* water electrolyzer technology –

a perfect match with renewable energy requirements

• High pressure operation

(less compression costs)

• Rapid load changes

• High stability / low degradation

PEM technology has numerous important advantages regarding the system properties

next cellsCathode Anode

next cellsH2O

H2 O2

1

2

3

4



Siemens PEM water electrolyzer technology

is based on more than 40 years of experience at Siemens

• Siemens started its PEM electrolyzer development

in 1998

• Siemens reference list in electrolyzer technology:

• continuous lab operation > 60.000 h

• 12y field operation (prototype)

• 100 bar prototype

• 45y electrode know-how

• 50+y experience in heavy duty rectifiers

• complete solution in one hand

• heavy duty rectifiers (up to 70.000 A)

• transformers

• control units

• grid connection

• gas turbines

Key statements100 kW demonstrator,

e.g. to be delivered

into the CO2RRECT

Project (BMBF)

Heavy duty

rectifier

SIPOREC



Roadmap: PEM Electrolyzer Portfolio “SILYZER”

nominal

capacity

1 MW

10 MW

100 MW

0,1 MW

product line I

0.1 – 0.3 MW

product line II

1 - >10 MW

2013 2015

product line III

10 - >100 MW

2018

SILYZER 100

SILYZER 200

SILYZER 300

• Siemens has established the business unit “Hydrogen

Solutions” to develop and industrialize PEM electrolyzer

systems.

• Systems in the MW-range will be available starting

2015, demonstrators in the sub-MW-class in 2013.

• Afterward, a 3rd Product line is planned in the range

10 until > 100 MW.

• Siemens supports the roll-out of H2-refuelling

infrastructure as member of the „Clean Energy

Partnership“.

• Siemens will be system provider (electrolyzer systems)

for the future H2-fuel scenario

Key statements

SILYZER – PEM Electrolyzer Systems from Siemens

Up-scaling Roadmap “SILYZER family”



SILYZER 200 – a PEM Electrolysis System made by Siemens

SILYZER 200 –

Hydrogen ProductionFeature / Function Benefit

• Best-in-class PEM electrolysis,

based on an own developed

system and proven Siemens

standard components and

technical expertise

• King-size power (double digit

MW class) and high current

density operation for efficient

hydrogen production up to 35

bar output pressure

• Extreme dynamic operation

from 0 to max-power combined

with a strong lifetime

commitment

• Leading edge green hydrogen

production thanks to the reliable

electrolysis operation with a high-

end system availability

• Small system footprint for lower

investment and optimal integration

• Low TCO, high robustness, low

investment risk

• Safety culture & discipline as

guarantee – incl. Remote operation

and condition monitoring for state-

of-the-art electrolysis operation



Standort „Innovationszentrum Kohle am RWE Kraftwerksstandort Niederaußem“

The high dynamic Siemens electrolyzer was delivered in December 2012

* CO2-Reaction using Regenerative Energies and Catalytic Technologies

CO2RRECT*: PEM electrolyzer demonstration project

with 100 kW rated power (300 kWpeak)

• Rated power of the system is 100 kW,

peak power 300 kW (electrical stack input)

• H2 and O2 are produced at an output

pressure of 50 bar

• The container is a “self-sustaining” system.

Power supply as well as water purification

are onboard

• More than 4 tons of hydrogen have been

produced

Key statements



• High efficiency

• Dynamic load changes

• 2,1 MW nominal input power

• High overload capacity (up to 6 MW el.)

Key statements

Source: Stadtwerke Mainz AGStudy SILYZER 200

Siemens

Next projects

Energie Park Mainz



Contact

Gaelle Hotellier

Siemens AG Industry Sector Drive Technologies Division

Phone: +49 (9131) 7-22847

E-Mail: [email protected]

mailto:[email protected]

hydrogen as a multi-purpose energy vector - siemens · 23/04/2014 · hydrogen as a multi-purpose...

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