Session II. Power to Gas. Nov 25, 2015

Transcription

1 Session II Power to Gas Nov 25, 2015

2 Frank Graf Current DVGW projects in the field of PtG Session II Power to Gas

3 Content 1. Background 2. DVGW PtG activities 3. Exemplary results 4. Outlook

4 PtG is not new! source: Hashimoto et al., Energy, Sustainability and Society 2014, 4:17

5 What are the drivers for PtG? Power generation Chemical storage of surplus energy Balancing services Transport of electrical energy via gas grid Chemical industry Mobility H 2 as feed stock for chemical products deployment of H 2 -distribution infrastructure Generation of renewable fuels for mobility (FT Diesel, CNG, LNG, H 2 ) Utilisation of hydrogen from renewable sources in refinery processes EC directives for deployment of infrastructure for alternative fuels, fuel quality and renewable energy offers new possibilities for PtG

6 PtG - the missing link between electricity and gas grid Power grid Gas grid Coal CO/CO 2 natural gas nuclear Renewables methanation electrolysis H 2 CH 4 biogas power plants SNG CHP mobility industry

7 What are the challenges? H 2 integration into the natural gas infrastructure Need for suitable carbon source (CO or CO 2 ) Methanation processes have to be flexible, robust and simple Advanced process integration is obligatory to increase overall efficiency Production costs have to be lowered significantly Business models have to be developed Political framework has to be prepared

8 Content 1. Background 2. DVGW PtG activities 3. Exemplary results 4. Outlook

9 DVGW PtG projects in Germany R&D Standardization Communication

10 DVGW PtG map Germany

11 DVGW R&D activities on PtG 1 H 2 integration into natural gas infrastructure 2 Demonstration projects on H 2 injection 3 Biological and catalytic methanation 4 Plant concepts and operation modes 5 Gas quality and metering 6 Convergence of gas and electricity grids 7 Economic analysis 8 System analysis and macro economic evaluation Holistic approach

12 PtG activities at Engler-Bunte-Institut Process development Honeycomb methanation 3-Phase-methanation Biological methanation System and process analysis Scientific support for demonstration projects Development and evaluation of process concepts Studies on the integration of PtG into the energy system Committees Standardization and technical rules R&D task forces and clusters

13 Content 1. Background 2. DVGW research activities 3. Exemplary results 4. Outlook

14 Case study on the role of PtG in rural distribution grids Aims: Identification of relevant coupling technologies Quantification of cost saving potentials in the power grid extension Use-of-potential analysis of PtG at different voltage levels Evaluation of additional options for PtG Biogasanlagen Biogas Power Gasnetz grid Task: HD HP MD MP ND LP BHKW CHP Power-to-Gas (Wasserstoff, PtG Methan) Bivalente Gasvorwärmanlagen NG preheating Thermische Last (Mikro-KWK-Anlagen, Wärmepumpen, Thermal loads Brennwertkessel, E-Heizer) Electrical load Elektrische Last (inkl. E-Mobility) Power Stromnetz grid MS HV NS LV Wind power Windenergieanlagen CHP BHKW (Biogas) (biogas) Photovoltaikanlagen Case study on the coupling of gas and power grid for a supply area of EWE Comparison of different power grid extension options with/without PtG HD: Hochdruck MD: Mitteldruck ND: Niederdruck MS: Mittelspannung NS: Niederspannung BHKW: Blockheizkraftwerk Evaluation of effects for high voltage grids PV

15 Expenses (NPV 2018) in K Ausgaben (Barwert 2018) PtG offers new options in the distribution grid 240 PtG-Anlage plant TEUR Netzausbau Power grid extention Markterlöse Revenues Ersparnis Savings im in HS-Netz HV grid Getrennter Option I Netzausbau Separate grid Konventionell extention conventional 81 Getrennter Option II Separate Netzausbau power grid Innovativ extention innovative Gekoppelter Option III Coupled Netzausbau grid inkl. extention Einsparungen* with PtG concept in MS+HS-Ebene compard to option gegenüber II Innovativ Gekoppelter Option IV Coupled Netzausbau grid inkl. extention Einsparungen* with PtG concept in MS+HS-Ebene compard to underground gegenüber cable system Kabelausbau Ersparnis Savings im in MS-Netz MV grid Summe sum Annahmen: Alle NS-Netze verfügen über PtG- Anlagen oder Speicher, die netzdienlich eingesetzt werden PtG-Anlage (H 2 ) mit P el = 150 kw für EUR/kW Bivalente GVWA mit P el = 35 kw für 485 EUR/kW *) Einsparungen in MS+HS-Ebene sind anteilig auf alle NS- Netze aufgeteilt

16 Coupling of bio-methane with PtG CO 2 could be used completely High overall energy efficiency possible (> 80 %) Considerable potential in Europe: 14,000 biogas plants In total 30 GW power input potential Ca. 90 TWh electricity could be converted

17 Production costs for different technologies and concepts Coupling with biomethane plant Coupling with biomass gasification biomethane BM: Biological methanation CM: Catalytic methanation

18 Pilot plant honeycomb methanation concept Parameter Methanation concept Isothermal honeycomb reactor Reactor temperature C Synthesis pressure SNG Output Operation Mode 5-20 bar 100 kwh SynGas & PtG

19 Content 1. Background 2. DVGW PtG activities 3. Exemplary results 4. Outlook

20 Outlook PtG is a promising option for gas industry PtH 2 and PtCH 4 route should be pursued Process integration enables high energy efficiency and further benefits for coupled processes Production costs are not yet competitive, advances in the manufacturing of electrolysis offers relevant cost reduction potentials Further experiences have to be gathered in pilot/demo plants Transport sector could be the main driver European elaboration of the topic is mandatory

21 Horizon 2020 project STORE&GO (I) Demo sites Academia industry +energy suppliers Scope of the project Errection and operation of 3 PtG demonstration plants Testing of 3 innovative methanation technologies Integration in existing energy infrastructure Project specifications 27 partners from 6 countries Overall budget 28 M EU contribution 18 M 4 years duration, from 03/2016 Coordinated by DVGW

22 Horizon 2020 project STORE&GO (II) Demonstration site Falkenhagen/Germany Demonstration site Solothurn/Switzerland Demonstration site Puglia/Italy Representative region with respect to typical generation of RES Rural area in the North East of Germany with high wind power production and low overall electricity consumption Municipal area in the Alps region with considerable RES from PV and hydro production Rural are in the Mediterranean area with high PV capacities, considerable wind power production, low overall electricity consumption Electricity grid Transmission grid Municipal distribution grid Regional distribution grid Gas grid Long distance transport grid Municipal distribution grid Regional distribution grid Plant size (power input) 1 MW 700 kw 200 kw Methanation technology to be demonstrated catalytic honeycomb/ structured wall reactors Biological methanation Modular milli-structured catalytic methanation CO 2 source Biogas or bioethanol plant Waste water treatment plant CO 2 from atmosphere Heat integration Veneer mill District heating CO 2 enrichment, H 2 storage Existing facilities and infrastructure 2 MW alkaline electrolyser, hydrogen injection plant 350 KW PEM electrolyser, hydrogen injection plant, district heating, CHP plant 1 MW PEM electrolyser, innovative metal hydride hydrogen storage