On January 24, 2018, the most powerful high-voltage direct-current (HVDC) transformer began its journey from the transformer factory in Nuremberg, Germany, to China. The transformer will first be transported to the harbor in Nuremberg by special heavy load transporter, where it will be loaded onto a ship. Its journey will take it to Rotterdam via the Main-Danube Canal, and from there it will be shipped to China, where it will arrive after several weeks on the high seas. In July 2016, Siemens received an order to manufacture four transformers of this type. About a year later, the world’s first 1,100 kV transformer was completed and successfully passed the tests in the testing facility. The enormous dimensions of the transformer – 37.5 meters long, 14.4 meters tall, and 12 meters wide – posed a logistical challenge for the team. In operation, the transformer weighs just under 900 tons and its efficiency is well above 99% of the rated power. For the first time, the transformer will enable a high-voltage direct-current (HVDC) transmission with low losses over a record distance of 3,284 kilometers with a transmission capacity of 12 gigawatts. HVDC transformers are part of the converter station that convert alternating current into direct current at the beginning of the transmission line and convert it back again at the end of the line. The conversion from alternating current to direct current helps to transmit energy over long distances with low losses. Transformers are key components of an HVDC line: Thanks to the transformer, the Changji-Guquan project will be able to transmit direct current with a huge 1,110 kilovolts for the first time in the world. The new transformer not only makes the transmission of this record voltage level possible, but it is also the world’s most powerful tested transformer with a capacity of 587 megavoltamperes. Siemens has thus achieved a new dimension in high-voltage direct-current transmission. The HVDC line between Changji and Guquan will be operated by State Grid Corporation (SGCC), a Chinese grid operator. The connection is expected to begin operation in 2019.
provides the key to success in this complex energy environment that is
characterized by an increasingly decarbonized and distributed energy landscape.
It makes interconnected and intelligent solutions for power transmission
systems possible that ensure the reliable and safe supply of power for the
years to come. At Hannover Messe 2021, Siemens Energy presented new digital
power transmission technologies for the development of more intelligent, safer
and even more efficient power grids.
Wind energy is at the center of the transition to a less carbon-intensive and more sustainable energy system. Although the share of renewables in global electricity generation is rising, renewable power as a whole still needs to expand to meet decarbonization targets set by governments around the world. Siemens Energy is committed to driving this potential into real growth for the future of renewable power and offers a whole range of power transmission equipment, grid access solutions and services for the wind industry. To
date Siemens Energy received orders for 21 grid connections with more
than 12 gigawatts of offshore wind and produced more than 4,000 units of
sustainable high-voltage products such as distribution transformers and
switchgear for original equipment manufacturer of wind turbines.
With the commissioning of BorWin3, Siemens has handed over the fifth North Sea grid connection to its customer TenneT. After completion of successful test runs, the German/Dutch grid operator accepted the project. Siemens was responsible for the grid connection system including an onshore converter station. The grid connections HelWin1 and HelWin2, BorWin2, SylWin1, and BorWin3 – for which Siemens supplied all the technology for direct current transmission – are thus now in commercial operation and are transmitting power. Siemens was awarded the contract for BorWin3 in the spring of 2014. Being the fifth North Sea grid connection, it provides power to over a million German households. Siemens won the orders for the grid connections DolWin6 and BorWin5 in July 2017 and August 2020, respectively. They are scheduled to go into operation in 2023 and 2025. A total of about seven million households will be supplied with electricity generated from wind power via these seven links.
Clean electricity for up to one million Scottish households
is leading the market for the grid connection of offshore wind power
In a world’s first, Siemens Energy is connecting
three Offshore Transformer Modules® (OTM®), its range of AC offshore substation
platforms, and will transmit the power generated from the 950MW Moray East
Offshore Windfarm project, located 22km off the Aberdeenshire coast in Scotland.
The three largest thermoelectric
power plants in Bolivia are now upgraded to efficient combined cycle mode and have
been officially inaugurated. Together the expanded power plants Termoeléctrica
del Sur, de Warnes, and Entre Ríos are adding more than one gigawatt of
electrical power to the Bolivian national grid.
The expansion of the three power
plants is an important milestone in the Bolivia 2025 vision, which aims to expand
the country’s energy sector. By the year 2025 the country’s power generation
capacity will be increased to 6,000 megawatts (MW), of which 3,000 MW will be
designated for export.
Highlighting its commitment to supporting Pakistan in meeting its growing power needs, Siemens has announced the signing of a long-term service agreement with Punjab Thermal Power (Private) Limited to provide comprehensive maintenance, parts and repair services for Punjab Power Plant Jhang for the next 12 years. The agreement includes Siemens' Power Diagnostics, part of the company's "Digital Services for Energy" portfolio of data-driven solutions.With the fifth-largest population in the world, Pakistan is working to spur socio-economic development by delivering reliable and efficient power supply to industries and homes. Located in Haveli Bahadur Shah, Punjab Power Plant Jhang, is expected to add 1.3 gigawatts (GW) to Pakistan's grid, making it one of the largest gas-fired, combined cycle power plants in the country. It will also see the first deployment of Siemens' SGT5-8000H gas turbines in the country, selected for their high power output and record-breaking efficiency. Anticipated benefits of the agreement include increasing the availability of the power plant and reducing the maintenance costs. The agreement covers all the scheduled and un-scheduled outage services for two SGT5-8000H gas turbines, generators, related auxiliaries as well as the supply of spare parts and field services."Pakistan's energy sector is undergoing a transformational period to meet the increasing demand of electricity. We are very proud to contribute to this significant project," said Gianluigi Di Giovanni, Senior Executive Vice President of Siemens Power Generation Services in the Middle East. "With our services, cross-fleet experience and digital capabilities, we look forward to bringing value and on-ground support to Punjab Thermal Power, helping maximize the potential of the plant's overall operations."Siemens' Power Diagnostics use advanced data analytics to help predict and eliminate unplanned downtime, and improve power plant productivity by identifying operational challenges in advance. It will also allow the power plant's team to manage outages more efficiently.The current agreement builds on Siemens' contributions towards strengthening Pakistan's power sector. It comes three months after the company signed the largest ever power generation contract in the country to provide a complete power island solution for Punjab Power Plant Jhang.
In many areas of the world, existing power infrastructure is stretched to the limit by growing demand for electricity. Reliable power supply systems are a major enabler of economic development, yet needs are growing at a pace faster than the ability to erect conventional power plants. The task at hand in these regions is to deploy efficient mobile power generating capacity quickly to fuel economic development. In some cases the need is temporary, and after some time the mobile power plant might be relocated to a different location to perform a similar duty.
Siemens has now specially developed its SGT-A45 TR gas turbine for this rapidly growing market – a new aero-derivative gas turbine integrated into a mobile unit that delivers an electrical output of up to 44 megawatts, can be installed and commissioned in less than two weeks and begin generating electricity immediately. This light-weight gas turbine offers outstanding power density, high fuel efficiency and good operational flexibility, making it an ideal choice for customers who urgently need power and regions with less developed infrastructures.
Building on its commitment to innovative power plant solutions, Siemens has been awarded a contract from Colbún S.A. to upgrade the Central Termoeléctrica Nehuenco-I plant with Siemens' Power Plant Automation T3000 Cue (SPPA-T3000) system. The 368-megawatt (MW) combined cycle power plant is located in Quillota, Valparaíso Region, in Chile and provides electricity to approximately 350,000 homes in the region.
Siemens has won a significant order from Oil and Natural Gas Corporation Limited (ONGC) in India to overhaul 18 units of RT48S & RT56 power turbines of Siemens fleet of aeroderivative gas turbines driven by Industrial AVON & Industrial RB211 gas generators along with installation and commissioning services. The turbines are operating at Mumbai High Asset and Neelam & Heera Asset of ONGC in Mumbai.