Elektrolyse - Potenziale zur Integration regenerativer Stromproduktion

Transcription

1 Elektrolyse - Potenziale zur Integration regenerativer Stromproduktion Manfred Waidhas, Siemens AG,, Erlangen Zukunftskonferenz Lausitz, Cottbus, Sept 18, 2015 Unrestricted / Siemens AG All Rights Reserved.

2 Integration of renewable energy...will challenge the energy industry GWh 2) Nysted Offshore Wind Farm, 72 units 2.3 MW, MW Power generation and load curves Curtailment 1) Source: TU Berlin, Prof. Erdmann, extrapolated for the year ) EnBW (Münch) at BMU Strategy Meeting, ) total demand Germany 2011: GWh The future CO 2 -optimized energy scenario will require smart solutions. Page 2

3 Components and tasks for a future energy system Managing increasingly complex energy systems Smart grid digitization Energy storage Grid stability and system efficiency Cross-regional electricity transfer and integration of distributed generation Grid extension Flexible and efficient power generation Cost-efficient use of conventional and renewable energy Page 3

4 Options to address Large Scale Grid Storage are limited Key statements / Methane 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 The future CO 2 -optimized energy scenario will require smart solutions Page 4

5 The big picture Hydrogen : Hydrogen is a multifunctional energy vector H 2 drives the convergence between energy & industry markets Page 5

6 Energiepark Mainz Project scope and key facts Objective: Develop an energy storage plant for the decentralized use of grid bottlenecks in order to provide grid services ( Regelenergie ) Page 6 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 (Trailerfilling station and injection into local gas grid) Highly dynamic operation over broad load range (ramp speed 10% per sec.) Timeline: 03/ /2016

7 Energiepark Mainz Page 7

8 Energiepark Mainz Page 8

9 Electrolyzer technology in a change Yesterday demand driven, conventional electrical power generation; negligible share of renewables use of electrolyzers in continuous industrial processes with cheap electricity Today Commitment to CO 2 - reduction; increasing share of renewables; first demonstrations to use existing electrolyzer technology for intermittent grid services Solution intelligent integration of renewables and storage in a smart grid highly dynamic electrolyzers provide grid services; shift of excess electricity to fuels and chemicals Page 9

10 SILYZER / Electrolyser basic system Main Technical Data - SILYZER 200 Electrolysis type / principle PEM Rated Stack Power 1.25 MW Dimension Skid 6,3 x 3,1 x 3,0 m Start up time (from stand-by) < 10 sec Output pressure Up to 35 bar Purity H % % (depends on operation) H 2 Quality 5.0 DeOxo-Dryer option Basic system Rated H 2 production 225 Nm³/h Skid Stack High pressure circuit Low pressure circuit safety and sensors Power electronics High current rectifier Trafo Control Overall Efficiency (system) % Design Life Time > h Weight per Skid 17 t CE-Conformity yes Tap Water Requirement 1,5 l / Nm³ H 2 Page 10

11 Die Energiewende als große globale Geschäftschance Quelle: FRAUNHOFER- INSTITUT FÜR WINDENERGIE UND ENERGIESYSTEMTECHNIK IWES Page 11

12 Summary CO 2 reduction targets are clearly linked with renewables. They will require storage capacities in the TWh range. Hydrogen is the only viable approach to store energy quantities > 10 GWh. In future there will be an increasing convergence between industry and energy markets. Power to Gas in an option to increase the flexibility of the electric grid. P2G is multifunctional: it provides three main business cases with individual maturity and market entry scenarios. P2G will start in economic niche applications and enable further extension of renewable power generation. Page 12

13 Backup Page 13

14 Advantages of the PEM Electrolyzer Technology basics: key spec: PEM* technology: H 2 O 2 High dynamic operation Compact design, small footprint Simple cold-start capability Pressure operation Low degradation Pure water handling Rapid load changes H 2 O MEA : Membrane-Electrode-Assembly * Proton-Exchange-Membrane Page 14

15 Do you also want to increase the overall efficiency and sustainability of your plant? Ask us now how it can be done! Page 15

16 Hydrogen will be part of the future energy scenario Page 16