Elecnor, S.A. engages in the development, construction, and operation of projects and services in Spain and internationally. The company operates energy transports, conversion, and distribution; generates power from wind farms, as well as solar, combined cycle, biomass, and hydroelectric plants; and provides gas related services covering transmission of power generated by gas-fired plants, construction and maintenance of distribution pipelines, and comprehensive services, as well as compression, metering, and regulator stations. It also offers telecommunications infrastructure, systems and networks, automation and infrastructure control, smart cities, and industrial automation; catenary, substations, signalling and interlocks, communications, and remote control and control; and technical assistance, administrative support, network operations, live working, installation and equipment maintenance, and customer management services. In addition, the company provides electricity, HVAC, fire protection, ventilation, energy efficiency, automation and control, management systems, safety and security, public address and sound systems, telecommunications, and plumbing and sewer systems; site and building rehabilitation, installations, outfitting and equipment, ornamental lighting, and prefabs; Water resource planning and transport and distribution networks; environmental development and protection policies; and treatment and reuse of waste and sewerage and water purification services. Further, it involved in space services for energy and environment, aerospace, aeronautics and defence, transport, safety and security, building, industry, and telecommunications sectors. Elecnor, S.A. was incorporated in 1958 and is based in Madrid, Spain. Elecnor, S.A. is a subsidiary of Cantiles XXI, S.L.