Reliable Electric Power Solutions

HV TECHNICAL MANAGEMENT

Experienced technical leadership and engineering coordination for complex high-voltage projects.

Our support can include:

• Technical Manager support
• Engineering coordination
• Design management support
• Technical interface management
• Designer and contractor coordination
• Technical risk identification
• Engineering programme support
• Technical query management
• Review of engineering deliverables
• Client and stakeholder technical meetings
• Design and commissioning integration
• Construction-phase technical support
• Energisation support
• Handover and closeout support

Support can be provided for individual project stages or throughout the complete project lifecycle.

HV SUBSTATION DESIGN & ENGINEERING

Through our specialist engineering associates, Net Zero Powergrid can provide design capability for HV and EHV substations and associated electrical infrastructure.

Services can include:

• Concept design
• Preliminary design
• Detailed design
• Single-line diagrams
• Key-line diagrams
• Substation layouts
• Primary plant design
• Secondary systems design
• Protection and control engineering
• Equipment specifications
• AC and DC auxiliary systems
• Cable schedules
• Design calculations
• Technical schedules
• Construction design support
• Design documentation
• As-built design support

Design work is undertaken by appropriately competent engineers for the relevant discipline and project requirements.

DESIGN ASSURANCE & TECHNICAL REVIEW

A technically compliant design must also be capable of being safely constructed, tested, commissioned, operated and maintained.

Net Zero Powergrid provides independent technical review and design assurance with particular focus on practical project delivery.

Reviews can include:

• Design completeness
• Technical assumptions
• Scope gaps
• Interface gaps
• Constructability
• Commissionability
• Equipment suitability
• Technical specification review
• Design responsibilities
• Outstanding technical information
• Testing requirements
• Operational considerations
• Programme-critical engineering issues
• Risks prior to construction
• Risks prior to commissioning
• Risks prior to energisation

Reviews can be issued as structured technical reports with clear actions, responsibilities and recommendations for closeout.

COMMISSIONING MANAGEMENT

Effective commissioning starts during design, not when equipment arrives on site.

Net Zero Powergrid can support the planning, coordination and delivery of commissioning activities from early project development through final energisation and handover.

Services can include:

• Commissioning strategy
• Commissioning management
• Commissioning scope development
• Commissioning programme review
• Commissioning responsibility matrices
• Interface management
• Inspection and Test Plan review
• Factory Acceptance Test requirements
• Site Acceptance Test requirements
• Site Functional Testing
• Primary plant commissioning coordination
• Protection and control commissioning
• SCADA commissioning coordination
• Remote-end testing
• Intertripping requirements
• Telecommunications interfaces
• Metering interfaces
• Outage requirements
• Energisation planning
• Commissioning readiness reviews
• Pre-energisation assurance
• Defect management
• Outstanding-action management
• Handover and closeout

PRE-ENERGISATION ASSURANCE

Before a substation or connection is energised, outstanding technical and commissioning issues must be clearly understood and controlled.

Net Zero Powergrid can provide an independent pre-energisation review covering areas such as:

• Design status
• Outstanding design changes
• Primary equipment
• Protection systems
• SCADA
• Telecommunications
• Auxiliary systems
• Remote-end modifications
• Intertripping
• Metering
• Test documentation
• Commissioning documentation
• Outstanding technical queries
• Defects
• Temporary arrangements
• Operational interfaces
• Handover documentation

The objective is to provide a clear and structured picture of what remains outstanding before energisation.

PROTECTION & CONTROL

Through our specialist engineering network, Net Zero Powergrid can support protection and control engineering throughout design and commissioning.

Support can include:

• Protection design
• Protection philosophy review
• Protection scheme review
• Protection interfaces
• Protection setting coordination
• Relay configuration support
• Intertripping
• Remote-end interfaces
• Protection testing strategy
• Factory testing support
• Site testing support
• Protection commissioning
• Protection documentation review

SCADA & IEC 61850

Modern substations rely heavily on automation, communications and data exchange.

Net Zero Powergrid can provide technical management and specialist support for SCADA and IEC 61850 systems.

Services can include:

• SCADA architecture review
• IEC 61850 interfaces
• Signal-list coordination
• Protection and SCADA interfaces
• Gateway interfaces
• Substation communications
• Time synchronisation
• Alarm and indication requirements
• Remote control requirements
• SCADA testing strategy
• Factory testing support
• Site testing support
• Remote-end interfaces
• Commissioning support

TELECOMMUNICATIONS & REMOTE-END INTERFACES

Substation projects often depend on successful integration with existing remote network locations.

Support can include:

• Telecommunications interface management
• Communications requirements
• Remote-end modifications
• Protection communications
• Intertripping interfaces
• SCADA communications
• Fibre interfaces
• Time synchronisation
• Testing responsibilities
• Outage coordination
• Remote-site commissioning interfaces

POWER SYSTEM STUDIES

Net Zero Powergrid can define, coordinate and provide specialist engineering support for power-system studies required for design development, equipment selection and network compliance.

Depending on project requirements, studies can include:

• Load-flow studies
• Fault-level studies
• Short-circuit studies
• Protection coordination
• Harmonic studies
• P28 voltage fluctuation studies
• Grid Code studies
• G99 compliance studies
• Reactive power assessment
• Insulation coordination
• Switching studies
• Transient Recovery Voltage studies
• Electromagnetic transient studies
• Ferroresonance studies
• Earthing studies
• Specialist equipment studies

Specialist studies are undertaken by appropriately experienced engineers using suitable industry-standard engineering tools.

GRID CONNECTIONS & RENEWABLE ENERGY

Net Zero Powergrid can support new and modified grid connections across a range of generation and energy infrastructure projects.

These can include:

• Wind generation
• Solar generation
• Battery Energy Storage Systems
• Generation projects
• Transmission connections
• Distribution connections
• Private networks
• Industrial electrical infrastructure

Support can be provided from early project development through detailed design, construction, commissioning and final connection.

TECHNICAL PROCUREMENT SUPPORT

Poorly defined scopes and specifications can result in delays, variations and commissioning problems later in a project.

Net Zero Powergrid can support procurement and engineering teams with:

• Scope of Work preparation
• Technical specification review
• Tender technical review
• Supplier technical clarification
• Technical bid evaluation
• Equipment evaluation
• Design responsibility definition
• Interface definition
• Technical schedules
• FAT requirements
• SAT requirements
• Vendor drawing review
• Technical deviation review
• Engineering change assessment

EQUIPMENT & OEM INTERFACE SUPPORT

We can support the technical coordination of primary and secondary equipment packages including:

• Power transformers
• Circuit breakers
• Disconnectors
• Earthing switches
• Current transformers
• Voltage transformers
• Combined CT and VT equipment
• Surge arresters
• Auxiliary transformers
• Batteries and chargers
• LVAC systems
• Protection panels
• Control panels
• SCADA panels
• Telecommunications equipment
• Metering equipment

Support can include specification review, supplier interfaces, testing requirements, documentation review and commissioning integration.

PROJECT TECHNICAL HEALTH CHECK

For projects already in design, construction or approaching commissioning, Net Zero Powergrid can provide an independent technical health check.

The review can assess:

• Design maturity
• Missing technical information
• Outstanding assumptions
• Technical queries
• Client information dependencies
• Contractor interfaces
• Design responsibilities
• Procurement risks
• Technical study status
• Commissioning readiness
• Remote-end requirements
• Programme-critical technical issues
• Outstanding actions before energisation

The output provides the project team with a clear summary of the principal technical risks, responsibilities and required actions.

SPECIALIST ENGINEERING RESOURCES

Net Zero Powergrid can provide additional engineering capability to support existing project teams.

Subject to project requirements and availability, our specialist network can provide:

• Technical Managers
• Design Managers
• Design Engineers
• Primary Engineers
• Secondary Engineers
• Commissioning Managers
• Commissioning Engineers
• Protection Engineers
• Control Engineers
• SCADA Engineers
• Telecommunications Specialists
• Power System Study Engineers
• SAP and operational specialists
• Specialist technical consultants

This allows clients to access experienced specialist capability without necessarily increasing permanent headcount.

OWNER'S ENGINEERING & INDEPENDENT TECHNICAL SUPPORT

Net Zero Powergrid can act as an independent technical representative for developers, asset owners and project organisations.

Support can include:

• Contractor design review
• Technical assurance
• Engineering progress assessment
• Technical risk review
• Commissioning oversight
• Witnessing strategy
• Technical deviation review
• Contractor interface management
• Independent readiness reviews
• Technical support through handover

PROJECT RECOVERY SUPPORT

Where projects experience engineering delays, unresolved interfaces or late technical issues, Net Zero Powergrid can provide targeted project recovery support.

We can help establish:

• What remains outstanding
• What information is missing
• Who owns each issue
• What requires specialist engineering
• What could prevent commissioning
• What could prevent energisation
• What can be closed immediately
• What requires client or network operator agreement

A structured technical recovery plan can then be developed with clear actions, owners and priorities.

HOW CLIENTS CAN ENGAGE US

DEFINED CONSULTANCY PACKAGES

A clearly defined engineering or technical deliverable for an agreed scope.

PROJECT-BASED SUPPORT

Engineering support provided for a particular project stage, work package or duration.

ONGOING TECHNICAL SUPPORT

Flexible technical capability retained throughout the project lifecycle.

INDEPENDENT TECHNICAL REVIEWS

Focused technical assessment of a particular design, problem, system or project stage.

SPECIALIST ENGINEERING RESOURCES

Additional experienced personnel to supplement an existing client or project team.

MULTIDISCIPLINARY ENGINEERING SUPPORT

A coordinated team assembled from our specialist engineering network to meet the specific requirements of the project.