Flexible AC transmission systems (FACTS)

FACTS for a CO₂ free power supply

Introducing FACTS

  Explore our solutions for grid resilience

SVC PLUS® (STATCOM)

The innovative SVC PLUS® for reactive power compensation is a cost efficient, space saving, flexible solution to increase dynamic stability and power quality of the grid, based on multilevel voltage-source converter (VSC) technology.

SVC PLUS FS® (E-STATCOM)

An SVC PLUS® frequency stabilizer is able to emulating system inertia by boosting high active power into the grid when needed. It also offers voltage support by means of reactive power compensation.

Synchronous condenser

Synchronous condensers offer grid stability e.g. for transmission systems with a high amount of renewable infeed by providing short-circuit power, inertia and reactive power compensation.

Fixed series capacitor (FSC)

The fixed series capacitor (FSC) is part of the series compensation portfolio and makes use of capacitors. They provide an increase in transmission system stability and capacity for power transmission.

Mechanically switched capacitors (MSC and MSCDN)

Mechanically switched devices (MSC/MSCDN) are the most economical reactive power compensation devices. MSCs are a robust solution for voltage control and network stabilization under steady state conditions. The MSCDN additionally offers a damping network to avoid resonance conditions in the electrical system. 

Unified power flow controller (UPFC PLUS®)

The unified power flow controller (UPFC PLUS®) controls power flow in just milliseconds thus stabilizes the AC grid even in critical situations (Grid code N-1). UPFC PLUS lets you get the most from your existing grid capacity while maintaining maximum protection.

Grid forming

Grid forming enables a stable grid voltage without relying on external grid reference. It's reducing dependence on external influences/reference sources and sustain voltage and frequency during disturbances and load changes.

Grid resilience

Our high-voltage solutions, products  and services enable efficient, loss-minimal transportation of renewable energy to global cities and hubs. Leveraging cutting-edge digital technologies, we optimize grid performance, even when dealing with large volumes of fluctuating energy and ultra-short-term renewable energy storage.

Grid stabilization brochure

Siemens Energy provides grid stabilization solutions to address even the most complex problems and network instability. We are also developing new solutions to manage current and future grid challenges while improving transmission system stability and performance.