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Grid Code Compliance

EPS specialises in making sure your electrical projects integrate with the grid seamlessly. With their extensive knowledge and experience, our dedicated power systems team simplifies the grid connection process and carries out grid code compliance for 11 kV to 400 kV connections. Leveraging specialist technology such as DIgSilent, ETAP, and IPSA, we are a reliable partner for any electrical engineering project requiring grid connection. Whether it’s a renewable project or a large manufacturing installation, EPS delivers solutions that satisfy industry standards while enhancing your asset’s efficiency and sustainability.

EPS has experience conducting design and compliance studies for a wide range of projects across several industries, including:

Renewables:

  • Battery Energy Storage Systems (BESS)
  • Gas Peak Lopping Stations
  • Stream Turbines
  • Onshore & Offshore Wind Farms
  • Solar Parks/ Farms
  • Energy-from-Waste (EfW) Generation

Industrial Networks:

  • Offshore Oil & Gas Electrification
  • Electrification of Steel Manufacturing Plants
  • Large Data Centres
  • Docks (Crane Electrification)
  • Petrochemical Sites
  • Manufacturing Plants

What are grid compliance studies?

At the core of any successful electrical project is a study of the grid connections and compliance. EPS’s grid connection studies offer a thorough analysis of the intricate procedure of connecting your electrical assets to the grid. We recognise that these studies involve more than just complying with technical specifications; they also include positioning your projects in the best possible position to achieve your energy goals.

Our studies consist of assessing your grid connections’ technical and operational viability, while taking into account environmental effects and legal compliance. Overall, these thorough examinations ensure that your project runs well within the grid system.

Transmission & Distribution Substation

EPS Services

  • Concept and FEED studies
  • Technical due diligence
  • Technical advisory / Owner’s Engineer
  • Lifecycle cost modelling
  • Failure investigation
  • Bespoke tool/script development
  • Load flow, voltage regulation, and reactive power capability
  • Short-circuit fault levels
  • Cable sizing and power losses
  • Voltage fluctuation and flicker (ER P28) and voltage unbalance (ER P29)
  • Harmonic assessments and filter design
  • Dynamic RMS model development
  • G99 / Grid Code compliance- Fault ride through and fast fault current injection
    – Voltage control and reactive power stability
    – Frequency response (LFSM-O, LFSM-U, FSM)
  • Harmonic assessments and detailed filter design (ER G5/5, IEC 61000-3-6)
  • Dynamic RMS model development and validation for OEMs
  • On-going developer support
  • Electromagnetic transient analysis
    – Insulation co-ordination
    – Switching
    – Lightning
    – Cable and transformer energisation
    – Fault analysis
    – Zero-miss phenomena
    – Ferroresonance
    – TRV and RRRV
    – Circuit breaker current capability
    – Out-of-phase synchronisation
  • Protection settings and co-ordination
  • Arc flash AC and DC
  • Load flow, voltage regulation and power losses assessment
  • Short-circuit calculations
  • Voltage fluctuation and flicker (ER P28, IEC 61000-3-7) and transformer inrush
  • Voltage unbalance (ER P29) assessment including traction networks
  • G99/Distribution/Grid Code compliance- Reactive power capability
    – Fault ride through and fast fault current injection
    – Voltage control and reactive power stability
    – Frequency response (load rejection, LFSM-O, LFSM-U, FSM)
    – Model verification and validation
  • CION reviews
  • Protection settings and co-ordination
  • Arc flash
  • Lightning protection
  • Electromagnetic transient analysis- Insulation co-ordination and surge arrestor sizing
    – Switching and lightning transients
    – Energisation transients
    – Zero-miss phenomena
    – Ferroresonance
    – TRV and RRRV assessment
    – Circuit breaker current interruption capability
    – Out-of-phase synchronisation
    – Fault analysis
  • Concept and FEED studies
  • Technical due diligence, advisory / Owner’s Engineer, ITE services.
  • Lifecycle cost modelling
  • Failure investigation
  • Bespoke tool/script development
  • Connection cost calculation
  • Connection applications
  • Risk assessment and mitigation plans
  • Offer reviews
  • Network charging

Related Services

All work is performed to DEP, IEC and ANSI or other appropriate standards as required. The combination of our network modelling software, ETAP or DIgSILENT and our experience provides EPS with a unique capability to provide clients with bespoke analysis solutions.

Given the tight deadlines and budget restraints, the level of service Engineering Power Solutions provided was outstanding. The offshore UPS consolidation project was engineered and designed to the platform’s requirements and offshore standards minimising platform shutdowns.

 

Mr Low – Petrofac Oil&Gas