Alstom Grid Visit Alstom.com Group| Power| Transport| Grid Change Language Home About us Products and Services News Resources Worldwide HVDC HVDC Alstom Grid engineers have been a guiding light in the field of HVDC transmission systems for over 50 years. Our teams of engineers bring you unparalleled experience from our global competency centres. All HVDC solutions are based on a project-by-project assessment of your individual needs andrequirements, whether it's for long distance power transmission, energy trading between independent networks or connection between asynchronous networks. We also offer complete project management from network analysis and design, to commissioning andeven operation for any type of HVDC transmission system. Technical HVDC advantages: HVDC power flow is fully controllable, fast and accurate. The operator or automaticcontroller determines how much power flows via the link. HVDC link is asynchronous and can adapt to any rated voltage and frequency at reception.The HVDC link can be used to assist the AC networks at each end of the link (e.g. power systemdamping). HVDC links do not increase the systems short circuit level and fault cannot transfer acrossHVDC interconnected systems. HVDC can transport economically and efficiently over longer distance than AC lines or cablesand, in a fixed corridor, HVDC transmission systems provide increased capacity. Large HVDC schemes (5000 MW - 6400 MW) are used to access remote hydro powerresources, hence renewable energy with no CO2 emissions. HVDC is more economical than HVAC for schemes with transmission distances more than 700km. Documents Effective HVDC solutions up to 800 kV HVDC Solutions Alstom Grid engineers are pioneers of HVDC transmission systems and have been a guiding light in this field for over 50 years. Through our global Competency Centres, our teams of engineers bring you unparalleled experience. HVDC Solutions Switchgear Smarter, more compact,more reliable and more environmentally-friendly solutions, this is the trend. The energy transition to a more sustainable future is happening now. HVDC valves The HVDC valve switches control power flow. Two types - Line Commutated Converters, LCC and Voltage Source Converters, VSC. LCC for high power, long distances. VSC lower power with other advantages. Power transformers Power transformers are essential components of electrical networks. They are present in people's everyday lives and occupations as key elements of every production process. Read more about Power transformers HVDC Control HVDC controls switch HVDC Valves. They manage the system to ensure power levels are met safely both for the HVDC system and electricity supply for the end consumers. Control room IT Alstom Grid, the world leader of energy management and electricity markets systems is the only player in the industry who offers a full solution from market-to-meter. Read more about Control room IT