SmartValve™ is an advanced power flow control (APFC) technology that quickly solves grid bottlenecks and other grid issues to create extra capacity and support optimized use of the existing grid.
It is a patented, award-winning, single-phase, modular Static Synchronous Series Compensator (m-SSSC) that injects a voltage in quadrature with the line current to synthesize a capacitive (- Ωs) or inductive (+ Ωs) reactance. This means it can push power off overloaded lines or pull power onto underutilized lines. SmartValve also provides dynamic services including improving voltage stability and transient stability.
Solve grid bottlenecks to quickly and cost-effectively create capacity that is available on the existing grid
Increase gross margin and reduce curtailment of renewable generation/uneconomic dispatch to reduce cost of energy for end consumers
Reduce or defer capital investment decisions until more certainty on future system needs, and retain flexibility to adapt or relocate SmartValves dependent on how the system needs evolve over time
Enable faster and more cost-effective connection of new renewable (onshore and offshore) generation by increasing network capacity. Supply new demand more efficiently as society moves towards wide-scale electrification
Facilitate extended outage windows and accelerate construction of new facilities or rebuilding of existing facilities (e.g. voltage uprates) to deliver projects on time and on budget
Enable increased interregional power transfer across seams or borders to provide greater access to clean affordable electricity and reduce price differentials between bidding zones
Power flow control solutions have evolved significantly since series reactors and series capacitors were first deployed in the 1920s. Phase Shifting Transformers were later developed, followed by the emergence of Flexible Alternating Current Transmission Systems (FACTS) in the 1980s. FACTS refers to static power-electronics devices that were developed to increase power transfer capability, stability, and controllability of AC transmission networks through series and/or shunt compensation. Harnessing the power of silicon and software, SmartValve is a modular Static Synchronous Series Compensator (m-SSSC) that was first deployed in 2016, paving the way forward for series-connected FACTS (Flexible Alternating Current Transmission Systems).
Previous SSSC technologies required custom designs, series injection transformers, water cooling across a high-voltage gradient, circuit breaker bypass protection, and considerable substation space – all driving significant solution cost. SmartValve leverages patented innovations such as sealed cooling systems at line potential and integrated fast-acting semiconductor switch bypass, to provide a superior modular SSSC solution that has high reliability, no single point of failure, significant operational and deployment flexibility, and multiple network applications. Over the past decade, we have been continuously innovating at our state-of-the-art R&D lab to refine our technology, and SmartValve is now deployed at scale across four continents.
Our customers around the world are using SmartValves to unlock over 3.5 Gigawatts grid capacity—enough to power over 2.5 million homes—supporting the faster integration of clean energy and new demand, enhancing security of supply and delivering cost savings to consumers.
Our global team of power system engineers provide a range of advisory services to our customers, including guidance on modelling SmartValve in network planning software, conducting studies for generation and load connections, power system planning, and technology integration.
SmartValve models for the following network planning software are readily available, and our team can also work directly with you to model SmartValve in additional platforms:
SmartValve is designed to be a modular device that can be easily deployed in a range of different configurations to meet the evolving needs of grid operators. Our expert engineers work closely with our customers to identify the optimal deployment layout for the specific site, taking into account not just today’s need, but also future needs. In this way, more SmartValves can be easily added in the future if the network need increases. This may include leaving space for additional SmartValves or the option to ‘double-stack’ which essentially means that two SmartValves can be deployed in the same footprint as one.
As deployments can be distributed along a circuit this adds another layer of flexibility as a large space is not necessarily needed even for large deployments.