Acciona, S.A. is a Spanish conglomerate group dedicated to civil engineering, construction and infrastructure.The company was founded in 1997 through the merger of Entrecanales y Tavora and Cubiertas y MZOV. The company's headquarters is in Alcobendas, Community of Madrid, Spain. The company's U.S. operations are headquartered in Chicago, Illinois, U.S.Acciona is controlled by chairman José Manuel Entrecanales and his family through Grupo Entrecanales. Wikipedia.
Acciona | Date: 2017-05-10
Wind turbine blade having at least one longitudinal hollow element that defines an aerodynamic outer surface and an inner cavity having an inner surface. The blade also comprises at least one spar (1), disposed in the inner cavity and bonded to the inner surface by at least two bonding surfaces (13) located on bonding surfaces (2) of the spar (1). The spar (1) comprises, on at least one bonding zone (2), at least three fibre fabric layers (3) and at least one central core (4) and at least one lateral core (5) disposed between the at least three fibre fabric layers (3). This makes it possible to increase the resistance to shear stresses in the adhesive bond of the spar (1) to the inner surface of the longitudinal hollow element and decrease the required amount of adhesive.
Acciona | Date: 2017-05-10
A wind turbine is disclosed which comprises a control system configured to execute at least one ice removal routine which comprises a heating stage of at least one of the blades (3), and a mechanical removal ice stage. A wind turbine removing ice method is also disclosed which comprises a stage wherein the presence of ice is detected on at least one of the blades and, once said presence of ice is detected, comprises a stage wherein at least one ice removal routine is activated which comprises, in turn, a heating stage of at least one of the blades and a mechanical removing ice stage on at least said blade.
Acciona | Date: 2017-05-03
The present invention relates to a wind turbine assembly system which proposes an alternative to conventional cranes, having a main lifting structure configured to withstand the load of at least one tower section or at least one wind turbine component, and at least one secondary lifting structure configured to perform the lifting of the main lifting structure with respect to the wind turbine tower, in addition relating to a wind turbine assembly method according to the previous system, as well as the wind turbine assembled with the previous method.
Acciona | Date: 2017-05-17
Comprising: blades (2) with longitudinal axis (5) and joining area (7), featuring first surface (8) non perpendicular to longitudinal axis (5), and first holes (13) parallel to longitudinal axis (5); hub (3); bearing (4) with stationary ring (9) attached to hub (3) and mobile ring (10) with rear side (11) attached to the first surface (8), and front side (12); longitudinal attaching means (14) in the first holes (13) and traversing the bearing (4), surpassing the front side (12); fixing surfaces (15, 23, 24) at the area of the front side (12); and fixing means (16) resting against the fixing surfaces (15, 23, 24) to fix the attaching means (14), providing an additional coning angle with uniform distribution of stresses at the blade (2)-bearing (4) joint and with the appropriate seat for fixing means (16).
Agency: European Commission | Branch: H2020 | Program: IA | Phase: LCE-03-2015 | Award Amount: 26.52M | Year: 2016
Offshore wind business competitiveness is strongly related to substructures and offshore logistics. DEMOGRAVI3 addresses these areas through a very promising solution called GRAVI3. GRAVI3 is an innovative hybrid steel-concrete offshore sub-structure for transitional water depths between 35 and 60m. It will sustainably reduce the levelized cost of energy by up to 15% by combining the following vectors: - Using three concrete caissons, with water ballast, instead of more complex and costly steel solutions and anchoring systems - Using a smaller steel structure - Performing all construction and assembly onshore and towing the complete unit to the site where it is submerged with an innovative and robust method. - Preventing the use of heavy lift vessels and reducing the level of complexity and risk of offshore operations. GRAVI3 has undergone the typical technology development process and is presently at TRL5. The logical next steps is the demonstration at full scale in real operational conditions. Thus, the project fits perfectly to the addressed Call for Proposals as the project will support technology development and bring the technology close to market readiness. The proposed project will design, engineer, build, assemble, transport, install and demonstrate a full scale foundation, equipped with a 2 MW offshore wind turbine, in a consented and grid connected demonstration site. Additionally, the project will undertake further technology development for improved design and perform an in depth evaluation of the technologys future industrialization, competitiveness and bankability. The core partners are committed to bring the GRAVI3 technology to market intending to 1) form a company with the objective to commercialize the GRAVI3 technology; 2) prepare themselves to take on important segments of the industrial value chain which will be put in place to move the GRAVI3 product forward; 3) foster the use of the technology, namely in the wind farms they are developing.
Agency: European Commission | Branch: H2020 | Program: RIA | Phase: SCC-03-2016 | Award Amount: 7.50M | Year: 2016
Based on a detailed mapping of urban challenges and relevant nature-based solutions (NBS), Nature4Cities aims at developing complementary and interactive modules to engage urban stakeholders in a collective-learning process about re-naturing cities, develop and circulate new business, financial and governance models for NBS projects, as well as provide tools for the impacts assessment, valorisation and follow-up of NBS projects. The different modules are: a database of generic NBS and associated environmental, economic and social performances an observatory of NBS projects best practices / case studies a set of innovative business, financial and governance models for the deployment of NBS in a range of different contexts, together with a tool to help urban stakeholders identify eligible models regarding their NBS project contexts a NBS project impact assessment toolbox providing capabilities for environmental, economic and social impacts evaluation at different stages in the project development cycle from opportunity/feasibility studies to design steps and project follow-up). This toolbox will built on a range of tools, from generic indicator-based assessment for early project stages, down to detailed modelisations of NBS behaviors. These modules that already have a proper purpose on their own, will furthermore be integrated in a NBS dissemination and assessment self-learning platform [N4C Platform] to assist NBS project developers along the entire life cycle of their projects from opportunity studies and project definition down to performance monitoring. Nature4Cities indicators, methodologies, tools and platform will be field tested in real working environments and on real nature-based solution projects and developments in selected cities in Europe, which will be partners of the project and engage their technical urban and environmental planning teams.
Agency: European Commission | Branch: H2020 | Program: IA | Phase: SCC-01-2015 | Award Amount: 32.20M | Year: 2016
SmartEnCitys main Objective is to develop a highly adaptable and replicable systemic approach towards urban transformation into sustainable, smart and resource-efficient urban environments in Europe through the integrated planning and implementation of measures aimed at improving energy efficiency in main consuming sectors in cities, while increasing their supply of renewable energy, and demonstrate its benefits. The underlying concept of the proposal is the Smart Zero Carbon City concept, where city carbon footprint and energy demand are kept to a minimum through the use of demand control technologies that save energy and promote raised awareness; energy supply is entirely renewable and clean; and local energy resources are intelligently managed by aware citizens, as well as coordinated public and private stakeholders. This approach will be firstly defined in detail, laid out and implemented in the three Lighthouse demonstrators (Vitoria-Gasteiz in Spain, Tartu in Estonia and Sonderborg in Denmark). The three cities will develop a number of coordinated actions aimed at: Significant demand reduction of the existing residential building stock through cost-effective low energy retrofitting actions at district scale. Increase in RES share of energy supply, through extensive leveraging of local potentials. Enhance the use of clean energy in urban mobility, both for citizens and goods, by means of extensive deployment of green vehicles and infrastructure. An extensive use of ICTs is planned to achieve integration and consistency in demo planning and implementation, and to enable further benefits and secure involvement of citizens. These actions will be aligned to city-specific Integrated Urban Plans (IUPs), and the process will be replicated in two Follower cities: Lecce, (Italy), and Asenovgrad (Bulgaria) to ensure adaptability and maximize the project impact. Additionally, a Smart Cities Network will be setup to support project replication at European scale.
Agency: European Commission | Branch: H2020 | Program: RIA | Phase: NMP-19-2015 | Award Amount: 7.97M | Year: 2016
The main goal of the LORCENIS project is to develop long reinforced concrete for energy infrastructures with lifetime extended up to a 100% under extreme operating conditions. The concept is based on an optimal combination of novel technologies involving customized methodologies for cost-efficient operation. 4 scenarios of severe operating conditions are considered: 1. Concrete infrastructure in deep sea, arctic and subarctic zones: Offshore windmills, gravity based structures, bridge piles and harbours 2. Concrete and mortar under mechanical fatigue in offshore windmills and sea structures 3. Concrete structures in concentrated solar power plants exposed to high temperature thermal fatigue 4. Concrete cooling towers subjected to acid attack The goal will be realized through the development of multifunctional strategies integrated in concrete formulations and advanced stable bulk concretes from optimized binder technologies. A multi-scale show case will be realized towards service-life prediction of reinforced concretes in extreme environments to link several model approaches and launch innovation for new software tools. The durability of sustainable advanced reinforced concrete structures developed will be proven and validated within LORCENIS under severe operating conditions based on the TRL scale, starting from a proof of concept (TRL 3) to technology validation (TRL 5). LORCENIS is a well-balanced consortium of multidisciplinary experts from 9 universities and research institutes and 7 industries whose 2 are SMEs from 8 countries who will contribute to training by exchange of personnel and joint actions with other European projects and increase the competitiveness and sustainability of European industry by bringing innovative materials and new methods closer to the marked and permitting the establishment of energy infrastructures in areas with harsh climate and environmental conditions at acceptable costs.
Agency: European Commission | Branch: H2020 | Program: IA | Phase: LCE-03-2015 | Award Amount: 8.49M | Year: 2016
Building-integrated photovoltaics (BIPV) is currently an expansive market. Market analysts estimate a compound annual growth rate of 18,7% and a total of 5,4 GW installed worldwide between 2013 and 2019. One of the main drivers for BIPV market growth in the EU is the increasingly demanding legislation related to energy performance in buildings. The large potential for energy savings in buildings led the EU Commission to adopt the 2010/31/EU Directive on the energy performance of buildings with the objective that all new buildings are Nearly Zero Energy Buildings (NZEB) by 2020. Renewable energy technologies, and in particular the integration of photovoltaic systems in the building environment offer many possibilities to play a key role within the NZEB scenario. Despite this favorable framework for BIPV technology market uptake, initial estimations of BIPV market growth have been subsequently overestimated in the past few years. A series of demands from the stakeholders which have not been properly addressed by the BIPV value chain are the cause for this deviation. These key requirements are mainly related to the flexibility in design and aesthetics considerations, lack of tools integrating PV and building performance, demonstration of long-term reliability of the technology, compliance with legal regulations, smart interaction with the grid and cost effectiveness. Within this context: The objective of PVSITES project is to drive BIPV technology to a large market deployment by demonstrating an ambitious portfolio of building-integrated solar technologies and systems, giving a forceful, reliable answer to the market requirements identified by the industrial members of the consortium in their day-to-day activity. High impact demonstration and dissemination actions will be accomplished in terms of cost-effective renewable generation, reduction of energy demands and smart energy management.
Agency: European Commission | Branch: H2020 | Program: IA | Phase: ICT-25-2016-2017 | Award Amount: 4.67M | Year: 2017
The proposal addresses novel concepts for introducing Robotics and Autonomous Systems in the Construction Sector where, at this moment, the presence is minor. Specifically, the Hephaestus project focuses on highly risked and critical construction tasks such as prefab wall installation. In that sense, the Hephaestus has been conceived as a solution for accomplishing multiple tasks on vertical or inclined planes of the built and outdoor environment. For that purpose, the Hephaestus is mainly based on a cable-driven robot and a modular end effector kit. This modular kit can host several tools and devices and therefore we can say it is multifunctional. Among the functionalities, the research project will achieve tasks such as 3D laser scanning of the building structure and the posterior installation of the prefab wall. But we can foresee some other performances such as the cleaning and maintenance of the curtain wall, repair of cracks and painting. The apparatus of the Hephaestus is lean, compatible with other handling systems, highly versatile and its reachability is very broad. Moreover, the controlling system would offer and easy and fast calibration. For achieving this goal, matrix based design methods will be used. It basically consists on decomposing a complex solution, such as the Hephaestus, into interdependent subsystems that can be feasible to solve. Certainly, the integration and adaptation of several technologies into the Hephaestus will be carried out with a systematic approach that will facilitate the election, adjustment and development of suitable tools. This proposal envisages continuous techno-economical assessment, which includes several tests in real conditions where prototypes of the cable-robot and the modular end-effector kit will be demonstrated. As an output of the research, the well balanced consortium and its interdisciplinary expertise will offer a realistic solution to cover primordial needs of the Built Environment and Construction sector.