Patents Assigned to ACCIONA ENERGÍA, S.A.
  • Patent number: 10509386
    Abstract: The present invention is a method for the control of power ramp-rates minimizing energy storage requirements in intermittent power generation plants, such as for example a photovoltaic solar plant, which minimizes the energy storage requirements approximately halving the size of storage systems necessary to comply with a maximum allowable ramp-rate given by a grid code regulation regarding the state of the art, reducing thus investment costs in the plant and/or carrying out a rationalized use of the energy storage system, in such a way that in order to achieve the same maximum fluctuation ramp, a minor use is done of the energy storage system, minimizing the losses and extending its working life, and therefore reducing the plant operational costs.
    Type: Grant
    Filed: November 25, 2015
    Date of Patent: December 17, 2019
    Assignee: ACCIONA ENERGIA, S.A.
    Inventors: Eugenio Guelbenzu Michelena, Asun Padros Razquin, Daniel Rabal Echeverria, Luis Marroyo Palomo, Javier Marcos Alvarez, Iñigo De La Parra Laita, Miguel Garcia Solano
  • Patent number: 10291031
    Abstract: The invention falls within the technical field associated with methods for controlling power fluctuation ramps using energy storage systems in plants for intermittent energy generation, wherein said method reduces the size of the energy storage system necessary to fulfill the requirement of a maximum power fluctuation ramp, by means of a step of imposing a maximum power variation ramp by imposing the dynamic component of the ramp, defined as the gradient according to which the power of the plant is varied in each control cycle in accordance with the state of charge of the energy storage system (SOC).
    Type: Grant
    Filed: September 30, 2013
    Date of Patent: May 14, 2019
    Assignee: ACCIONA ENERGIA, S.A.
    Inventors: Maria Asuncion Padros, Daniel Rabal, Inigo Berazaluce, David Cuesta, Luis Marroyo, Javier Marcos
  • Patent number: 10072238
    Abstract: The present invention relates to a microalgae culture system under external conditions that comprises a shallow-depth culture container, a rotation system for the generation of light-darkness cycles and re-suspension, which maximises the photosynthetic efficiency of the microalgae and homogenises the nutrients supplied such that the microalgae may adequately grow in all the areas of the photobioreactor, a gas exchange and temperature control system, which makes it possible to control and maintain the culture parameters under the optimal microalgae growth conditions, a filtration and self-cleaning system, an energy control and saving system, which makes it possible to maintain the desired conditions with the lowest energy expenditure, and a cover system, which filters ultraviolet and/or infrared radiation and makes it possible to control contaminations, the temperature and the evaporation.
    Type: Grant
    Filed: July 3, 2012
    Date of Patent: September 11, 2018
    Assignee: Acciona Energia, S.A.
    Inventors: Andres Arbona Celaya, Miguel De La Parra Abad, Ivan Ripa Ngkaion, Mikel Sojo Armentia
  • Patent number: 9752240
    Abstract: The present invention relates to an electrochemical cell (20) comprising a bipolar plate (26); an annular support next to the bipolar plate (26); a first electrode (22) separated from the bipolar plate (26) defining a first half-cell (10?) (cationic or anionic) together with the plate and the annular support. The cell also has a membrane (23) next to the first electrode (22); a second electrode (24) next to the membrane (23); and a closure element (21) defining a second half-cell (10?) (cationic or anionic depending on the nature of the second electrode) together with the second electrode (24). In the present invention the closure element (21) is housed within the annular support (25).
    Type: Grant
    Filed: December 21, 2011
    Date of Patent: September 5, 2017
    Assignees: INGETEAM POWER TECHNOLOGY, S.A., ACCIONA ENERGÍA, S.A.
    Inventors: Sergio López De Echazarreta Elvira, Maria Santa María Iruzubieta, Raquel Rojo Ochoa, Isabel Carrilero Borbujo
  • Patent number: 9376757
    Abstract: The present invention describes a diaphragm comprising SPEEK for alkaline electrolysis with a first layer having micropores and a second layer of macroporous channels which start at the contact surface between the first and the second layer then extending and forming the outer surface of the second layer, where said macroporous channels increase in section and change direction as they approach said outer surface of the second layer, and where the walls of the macrochannels are in turn macroporous. The invention also describes a production method for producing the diaphragm comprising the use of the chemically induced phase separation (CIPS) technique, and its use in alkaline electrolysis and in electrolyzers.
    Type: Grant
    Filed: December 20, 2011
    Date of Patent: June 28, 2016
    Assignees: INGETEAM POWER TECHNOLOGY, S.A., ACCIONA ENERGÍA, S.A.
    Inventors: Isabel Carrilero Borbujo, Maria Santa Maria Iruzubieta, Manuel Arruebo Gordo, Jesus Otero Cebrian, Silvia Irusta Alderete, Javier Sese Monclus
  • Patent number: 9222459
    Abstract: It stands out mainly for consisting of a nested configuration of electrolysis units (5), independently operated, the nominal power values of which are descendant in such a manner that, for any unit of the system, the sum of the nominal power of the smaller electrolysis units (5) is always greater than or equal to the “dead band” (DB) of said units, allowing reduction of the dead band of said hydrogen production system (4) to negligible levels, avoiding loss or discharge of the energy generated in said renewable power stations, preferably one or several wind farms (2) formed by a group of wind turbines (1), connected to the power grid (3) as a consequence of the implementation of a primary control service therein or, in general, of any other active power control service, thereby optimizing the total energy obtained.
    Type: Grant
    Filed: April 28, 2010
    Date of Patent: December 29, 2015
    Assignees: INGETEAM POWER TECHNOLOGY, S.A., ACCIONA ENERGIA, S.A.
    Inventors: Javier Pérez Barbáchano, Eugenio Guelbenzu Michelena, Pablo Sanchis Gúrpide, Alfredo Ursúa Rubio, Luis Marroyo Palomo, Israel Sánchez Mayayo
  • Publication number: 20150299875
    Abstract: The present invention relates to an electrochemical cell (20) comprising a bipolar plate (26); an annular support next to the bipolar plate (26); a first electrode (22) separated from the bipolar plate (26) defining a first half-cell (10?) (cationic or anionic) together with the plate and the annular support. The cell also has a membrane (23) next to the first electrode (22); a second electrode (24) next to the membrane (23); and a closure element (21) defining a second half-cell (10?) (cationic or anionic depending on the nature of the second electrode) together with the second electrode (24). In the present invention the closure element (21) is housed within the annular support (25).
    Type: Application
    Filed: December 21, 2011
    Publication date: October 22, 2015
    Applicants: ACCIONA ENERGÍA, S.A., INGETEAM POWER TECHNOLOGY, S.A.
    Inventors: Sergio LÓPEZ DE ECHAZARRETA ELVIRA, Maria Santa MARIA IRUZUBIETA, Raquel ROJO OCHOA, Isabel CARRILERO BORBUJO
  • Patent number: 8982590
    Abstract: The invention describes a solar generation method by means of a system (1) comprising a set of solar cells (2) connected to an inverter (4) that transmits the energy generated to an electrical network (6), which comprises controlling the active and reactive power that the system (1) transmits to the electrical network (6) by controlling the voltage (Vcell) of the cells (2) and the output current (Iinv) of the inverter (4), such that: in a first mode of operation, the voltage (Vcell) of the cells (2) provides the maximum active power in accordance with the operating conditions; and, in a second mode of operation, the voltage (Vcell) in the cells (2) is different from the voltage that provides the maximum active power, generating an active power that is lower than the maximum, in order to optimise the integration of the solar generation system (1) into the electrical network (6).
    Type: Grant
    Filed: October 14, 2009
    Date of Patent: March 17, 2015
    Assignee: Acciona Energia, S.A.
    Inventors: Elizabeth Giraut Ruso, María A. Padrós Razquin, Carlos Itoiz Beunza
  • Patent number: 8930035
    Abstract: A process for simultaneously providing capacity sale services (e.g. frequency regulation or voltage regulation), energy sale services (energy transfer from off-peak hours to peak hours), and stabilization services of a renewable plant may be provided. The process includes determining the values of energy quantity to be produced by the plant during a near future time interval. The process may also include introducing the values of energy quantity, in the control unit. Generating an hourly program of energy supply to be provided by the energy accumulator unit to the network may also be performed, depending on the values of energy to be produced, which stabilizes the power supplied by the plant to the network. Furthermore, the frequency and the voltage of the network may be regulated as well as transfers the energy between off-peak hours and peak hours, or from hours with saturation of the network to hours without saturation.
    Type: Grant
    Filed: June 29, 2011
    Date of Patent: January 6, 2015
    Assignee: Acciona Energia, S.A.
    Inventors: Luis Marroyo Palomo, Javier Marcos Álvarez, María Asunción Padros Razquin, Daniel Rabal Echeverria, David Cuesta Lerín, Iñigo Berazaluce Minondo, Christopher Walti
  • Publication number: 20140332403
    Abstract: The present invention describes a diaphragm comprising SPEEK for alkaline electrolysis with a first layer having micropores and a second layer of macroporous channels which start at the contact surface between the first and the second layer then extending and forming the outer surface of the second layer, where said macroporous channels increase in section and change direction as they approach said outer surface of the second layer, and where the walls of the macrochannels are in turn macroporous. The invention also describes a production method for producing the diaphragm comprising the use of the chemically induced phase separation (CIPS) technique, and its use in alkaline electrolysis and in electrolyzers.
    Type: Application
    Filed: December 20, 2011
    Publication date: November 13, 2014
    Applicants: ACCIONA ENERGIA, S.A., INGETEAM POWER TECHNOLOGY, S.A.
    Inventors: Isabel Carrilero Borbujo, Maria Santa Maria Iruzubieta, Manuel Arruebo Gordo, Jesus Otero Cebrian, Silvia Irusta Alderete, Javier Sese Monclus
  • Patent number: 8696246
    Abstract: The invention relates to a supporting element (8) for an offshore wind turbine (3), comprising a base body (1) formed by a circular or polygonal basement (4), a shaft (5) with vertical walls and a plurality of vertical cavities (6) extending over the entire height thereof and a slab (2) dispose on the shaft (5) of the base body (1), on which slab (2) a wind turbine (3) is positioned and secured. The base body (1) of the supporting element (8) is produced using sliding formwork, from the basement (4) up to the upper base thereof. In addition, the method includes the following steps: ballasting the supporting element (8) by partially filling the above-mentioned vertical cavities (6); seaward towing the supporting element (8) from the production site thereof to the offshore wind turbine installation site; anchoring the supporting element (8) by filling the vertical cavities (6) completely; until the supporting element (8) rests on a stone bed (19) on the sea bed; and mounting the wind turbine (3).
    Type: Grant
    Filed: March 23, 2009
    Date of Patent: April 15, 2014
    Assignees: Acciona Windpower, S.A., Acciona Energia, S.A.
    Inventors: Miguel Nunez Polo, Raul Manzanas Ochagavía, Federico Sancho Castiello
  • Patent number: 8500969
    Abstract: System for producing electric energy and hydrogen based on renewable energy sources, such as wind energy from one or several wind turbines, and incorporating means for producing hydrogen. The system comprises a hybrid electrolyzer device, which comprises a combination of at least two different electrolysis technologies and at least one control device, which manages the hydrogen production between the two electrolyzers of the different electrolysis technologies; being at least one electrolyzer of a rapid dynamics electrolysis technology type and, at least the second one of a substantially slower dynamics electrolysis technology type.
    Type: Grant
    Filed: April 11, 2008
    Date of Patent: August 6, 2013
    Assignees: Acciona Energia, S.A., Ingeteam Power Technology. S.A.
    Inventors: Eugenio Guelbenzu Michelena, Javier Pérez Barbáchano
  • Publication number: 20130093194
    Abstract: It stands out mainly for consisting of a nested configuration of electrolysis units (5), independently operated, the power output values of which are descendant in such a manner that, for any unit of the system, the sum of the power output values of the smaller electrolysis units (5) is always greater than or equal to the “dead band” (DB) of said units, allowing reduction of the dead band of said hydrogen production system (4) to negligible levels, avoiding loss or discharge of the energy generated in said renewable power stations, preferably one or several wind farms (2) formed by a group of wind turbines (1), connected to the power grid (3) as a consequence of the implementation of a primary control service therein or, in general, of any other active power control service, thereby optimising the total energy obtained.
    Type: Application
    Filed: April 28, 2010
    Publication date: April 18, 2013
    Applicant: Acciona Energia S.A.
    Inventors: Javier Pérez Barbáchano, Eugenio Guelbenzu Michelena, Pablo Sanchis Gúrpide, Alfredo Ursúa Rubio, Luis Marroyo Palomo, Israel Sánchez Mayayo
  • Publication number: 20130006431
    Abstract: A process for simultaneously providing capacity sale services (e.g. frequency regulation or voltage regulation), energy sale services (energy transfer from off-peak hours to peak hours), and stabilization services of a renewable plant may be provided. The process includes determining the values of energy quantity to be produced by the plant during a near future time interval. The process may also include introducing the values of energy quantity, in the control unit. Generating an hourly programme of energy supply to be provided by the energy accumulator unit to the network may also be performed, depending on the values of energy to be produced, which stabilizes the power supplied by the plant to the network. Furthermore, the frequency and the voltage of the network may be regulated as well as transfers the energy between off-peak hours and peak hours, or from hours with saturation of the network to hours without saturation.
    Type: Application
    Filed: June 29, 2011
    Publication date: January 3, 2013
    Applicant: ACCIONA ENERGIA, S.A.
    Inventors: LUIS MARROYO PALOMO, Javier MARCOS ÁLVAREZ, Mariá Asunción PADROS RAZQUIN, Daniel RABAL ECHEVERRIA, David CUESTA LERÍN, Iñigo BERAZALUCE MINONDO, Christopher WALTI
  • Publication number: 20120262960
    Abstract: The invention describes a solar generation method by means of a system (1) comprising a set of solar cells (2) connected to an inverter (4) that transmits the energy generated to an electrical network (6), which comprises controlling the active and reactive power that the system (1) transmits to the electrical network (6) by controlling the voltage (Vcell) of the cells (2) and the output current (Iinv) of the inverter (4), such that: in a first mode of operation, the voltage (Vcell) of the cells (2) provides the maximum active power in accordance with the operating conditions; and, in a second mode of operation, the voltage (Vcell) in the cells (2) is different from the voltage that provides the maximum active power, generating an active power that is lower than the maximum, in order to optimise the integration of the solar generation system (1) into the electrical network (6).
    Type: Application
    Filed: October 14, 2009
    Publication date: October 18, 2012
    Applicant: ACCIONA ENERGIA, S.A.
    Inventors: Elizabeth Giraut Ruso, María A. Padrós Razquin, Carlos Itoiz Beunza
  • Publication number: 20110091287
    Abstract: The invention relates to a supporting element (8) for an offshore wind turbine (3), comprising a base body (1) formed by a circular or polygonal basement (4), a shaft (5) with vertical walls and a plurality of vertical cavities (6) extending over the entire height thereof and a slab (2) dispose on the shaft (5) of the base body (1), on which slab (2) a wind turbine (3) is positioned and secured. The base body (1) of the supporting element (8) is produced using sliding formwork, from the basement (4) up to the upper base thereof.
    Type: Application
    Filed: March 23, 2009
    Publication date: April 21, 2011
    Applicants: ACCIONA WINDPOWER, S.A., ACCIONA ENERGIA, S.A., IBERICA DE ESTUDIOS E INGENERIA
    Inventors: Miguel Nuñez Polo, Raul Manzanas Ochagavía, Federico Sancho Castello