Skip to main content

Small-Scale Solar Thermal Combined Cycle

Objective

The main objective of POLYPHEM is to improve the flexibility and the performance of small-scale Concentrated Solar Power plants. The outcomes of the project will allow in the short term to reinforce the competitiveness of this new low carbon energy technology and therefore to favour its integration in the European energy mix.
The technology consists of a solar-driven micro gas-turbine as top cycle and an Organic Rankine Cycle as bottom cycle. There is no water requirement for cooling. A thermal energy storage is integrated between both cycles. The resulting power block is a solar power generation system able to meet the requirements of a local variable demand of energy with a high average conversion efficiency of 18% and a low environmental profile with an investment cost target below 5 €/W. Besides electricity generation, other applications will be considered for future developments, such as heating/cooling of multi-family buildings or water desalination for small communities.
The project will build a 60 kW prototype plant with a 2 MWh thermal storage unit and will validate this innovative power cycle in a relevant environment (TRL 5), assess its technical, economic and environmental performances and establish the guidelines for its commercial deployment. POLYPHEM will lead to a supply price of electricity of 21 c€/kWh under DNI of 2050 kWh/m2/year, thus meeting for small scale CSP plants the 40% cost reduction of the SET Plan.
POLYPHEM will be carried out by 4 research centers and 5 private companies. The project makes a step forward beyond the state-of-the-art of thermodynamic cycles in CSP plants. The micro gas-turbine will be solarized to integrate solar energy in the cycle. A novel pressurized air solar receiver with 80% efficiency and 0.4 €/W will be developed from a technology of solar absorber currently patented by CEA and CNRS. A thermocline storage at 28 €/kWh will be developed with thermal oil and a filler material in a concrete tank.

Call for proposal

H2020-LCE-2017-RES-RIA-TwoStage
See other projects for this call

Funding Scheme

RIA - Research and Innovation action

Coordinator

CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE CNRS
Address
Rue Michel Ange 3
75794 Paris
France
Activity type
Other
EU contribution
€ 1 053 181,25

Participants (8)

COMMISSARIAT A L ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES
France
EU contribution
€ 793 976,25
Address
Rue Leblanc 25
75015 Paris 15
Activity type
Research Organisations
CENTRO DE INVESTIGACIONES ENERGETICAS, MEDIOAMBIENTALES Y TECNOLOGICAS-CIEMAT
Spain
EU contribution
€ 324 886,25
Address
Avenida Complutense 40
28040 Madrid
Activity type
Research Organisations
ARRAELA SL
Spain
EU contribution
€ 197 128,75
Address
Rua Peteiro - Parcela M3 Sn
15621 Cabanas
Activity type
Private for-profit entities (excluding Higher or Secondary Education Establishments)
FRAUNHOFER GESELLSCHAFT ZUR FOERDERUNG DER ANGEWANDTEN FORSCHUNG E.V.
Germany
EU contribution
€ 631 386,25
Address
Hansastrasse 27C
80686 Munchen
Activity type
Research Organisations
KAEFER Isoliertechnik GmbH & Co.KG
Germany
EU contribution
€ 1 110 701,25
Address
Marktstraße 2
28195 Bremen
Activity type
Private for-profit entities (excluding Higher or Secondary Education Establishments)
ORCAN ENERGY AG
Germany
EU contribution
€ 398 437,50
Address
Rupert-mayer-strasse 44
81379 Munchen
Activity type
Private for-profit entities (excluding Higher or Secondary Education Establishments)
EURONOVIA
France
EU contribution
€ 189 800
Address
46 Rue D'alésia
75014 Paris
Activity type
Private for-profit entities (excluding Higher or Secondary Education Establishments)
AALBORG CSP AS
Denmark
EU contribution
€ 276 463,75
Address
Hjulmagervej 55
9000 Aalborg
Activity type
Private for-profit entities (excluding Higher or Secondary Education Establishments)