Skip to main content

FLEXnCONFU: Flexiblize Combined Cycle Power Plants through Power To-X Solutions using Non-Conventional Fuels

The main goal of the FLEXnCONFU project is to develop and demonstrate innovative, economically viable and replicable power-to-X-to-power (P2X2P) solutions in combined cycle (CC) power plants. The objective is to design and implement integrated power plant layouts that can increase the operational flexibility in order to respond to the electricity demand.

Funded by:

The European Union’s Horizon 2020 research and innovation programme under grant agreement N° 884157

Time period:

April 2020 - March 2024

Project partners:

RINA-C – RINA Consulting

EDP – Energias de Portugal

EDP CNETC – EDP Centre for New Energy Technologies

Cummins (Hydrogenics)

CERTH – Centre for Research and Technology Hellas

Baker Hughes

ETN Global – European Turbine Network

Proton Ventures B.V.

MAS Controlling Power & Energy

CIRCE – Centre of Research for Energy Resources and Consumption

UNIGE – University of Genoa

Cardiff University

TUDA – Technical University of Darmstadt

UCLouvain – Université catholique de Louvain

KTH Royal Institute of Technology

CEA – government technological research organization

TU/e – Eindhoven University of Technology

Tirreno Power

ENGIE Laborelec

UORL – University of Orléans

ICI Caldaie

Project web:

https://flexnconfu.eu/

Background

In its 2030 goals, EU is strongly pushing on renewable energy sources (RES) as well as on alternative fuels to increase EU fuel independency. The achievement of this goal is only possible with a strong integration between conventional power plants and the RES. Combined Cycle Gas Turbine (CCGT) plants will be for the next years the best flexibility sources for compensating the intermittency of the RES. The injection of alternative fuels (i.e. H2 and NH3) will help the current “fuel switch” the EU is facing, drastically reducing CO/CO2/HC emissions, which are more difficult to manage respect to NOx. The P2X solutions, which are currently widely studied, coupled with RES, could help the Combined Cycle (CC) to levelling their load reducing its environmental impact. Hence, developing proper technologies and solutions to couple P2X2P systems with GT is mandatory.

FLEXnCONFU, covering the whole value chain, is a pioneer demonstration to market project, which will contribute to the valorization of European GT and P2G scientific and technological competencies, and to the creation of a clean hydrogen/ammonia society.

Aims and objectives

The main goal of the FLEXnCONFU project is to develop and demonstrate innovative, economically viable and replicable power-to-X-to-power (P2X2P) solutions in combined cycle (CC) power plants. The objective is to design and implement integrated power plant layouts that can increase the operational flexibility in order to respond to the electricity demand. This will be done by converting surplus electricity production when demand is low into hydrogen (H2) or Ammonia (NH3). These carbon free fuels can then be converted back to electricity when the demand increases. The power-to-ammonia-to-power system, or P2A2P, will be demonstrated up to TRL6 using a micro gas turbine operating in a smart grid context. This will take place in the laboratory facilities of UNIGE in Savona, Italy. The power-to-hydrogen-to-power system, or P2H2P, will be demonstrated up to TRL7 in an EDP’s real CC power plant in Ribatejo, Portugal. Finally, the replicability of these solutions will be studied in virtual demonstrations sites using techno-economic models developed and validated with data from the physical installations.

Outcomes

The FLEXnCONFU project is articulated in 9 Work Packages (WPs), as shown below. WP1 “Scenario analysis and requirements definition” aims at defining the technical specifications and requirements for FLEXnCONFU layouts, analyzing predicted technical, environmental and economic impacts through a participatory approach by involving GT O&M and energy utilities, while sub-systems specifications and the overall BoP will be outlined and agreed among technology manufacturers. These specifications will be the starting point for the development of FLEXnCONFU subsystems in WP3/4/5. KTH participates in all WPs, however, its largest contribution is to WP1. More specifically, KTH leads task T1.3 “Techno-economic modelling and optimization”. The Principal Investigator (PI) and project leader at KTH is Dr. Rafael Guédez. The PhD student involved in the project is Jose Garcia.

The project is set to work on the following 5 aspects, and the expected outcomes are as follows:

Power-to-Hydrogen, P2H: development, integration and demonstration of a P2H solution (up to TRL7) to increase the CC power plant flexibility and efficiency, while decreasing GHG emissions and use of natural gas. The target is 1000 operating hours for the P2H solution connected with the combined cycle power plant.

Layout of the Power-to-Hydrogen-to-Power system

Power-to-Ammonia, P2A: demonstration of a P2A solution at lab scale (up to TRL6) using a small-scale ammonia reactor for NH3. Target: P2A system working at T<300˚C and p<35bar.

Publications coming out of this project can be found in FLEXnCONFU’s website (https://flexnconfu.eu/) as part of the dissemination strategy

Project contact persons:

Jose Angel Garcia
Jose Angel Garcia
doctoral student
ADiSS - Aeroelastic Damping in Separated Flows
MERiT – Methane in Rocket nozzle cooling channels - conjugate heat Transfer measurements
CARE – Cavity Acoustics and Rossiter modEs
SCO2OP-TES – sCO2 Operating Pumped Thermal Energy Storage for grid/industry cooperation
POWDER2POWER (P2P) – MW-scale fluidized particle-driven CSP prototype demonstration
eLITHE – Electrification of ceramic industries high temperature heating equipment
DETECTIVE – Development of a Novel Tube-Bundle-Cavity Linear Receiver for CSP Applications
USES4HEAT – Underground Large Scale Seasonal Energy Storage for Decarbonized and Reliable Heat
ADA – Aggressive Duct Aerodynamics
VIFT - Virtual Integrated Fan and Turbine
Heating Cooling Transition and Acceleration with Phase Change Energy Utilization Storage (HECTAPUS)
SUSHEAT Smart Integration of Waste and Renewable Energy for Sustainable Heat Upgrade in the Industry
Analysis of PV system in Sweden
Accelerating the Integration of Electric Vehicles in a Smart and Robust Electricity Infrastructure — EVAccel
Towards Sustainable Energy Communities: A Case Study of Two Swedish Pilot Projects
HYBRIDplus: Advanced HYBRID solar plant with PCM storage solutions in sCO2 cycles
SHARP-SCO2 Solar Hybrid Air-sCO2 Power Plants
RIHOND - Renewable Industrial Heat On Demand
A turnkey solution for Swedish buildings through integrated PV electricity and energy storage (PV-ESS)
A new standard methodology for assessing the environmental impact of stationary energy storage systems (LCA-SESS)
EleFanT – Electric Fan Thruster
Circular Techno-Economic Analysis of Energy Storage– IEA Annex Co-coordination
Optimization of Molten Salt Electric Heaters
FLEXnCONFU: Flexiblize Combined Cycle Power Plants through Power To-X Solutions using Non-Conventional Fuels
SolarSCO2OL
ARIAS - Advanced Research Into Aeromechanical Solutions
A network of bioeconomy open access pilot and multipurpose demo facilities (PILOTS4U)
Cavity Purge Flows inside axial turbines
Effective thermal storage systems for competitive Stirling-CSP plants
ENFLOW: Energy flow metering of natural and biogas for residential applications
H2020 Pump Heat
Infrastructure for Sharing Knowledge II (BRISK II)
Improved flue gas condensate treatment in MSW incineration via membrane distillation
Integrated modelling and optimization of coupled electricity and heating networks
IntegrCiTy
Membrane distillation for advanced wastewater treatment in the semiconductor industry
Microgrid for Tezpur University
Smart and Robust Electricity Infrastructure for the Future