Ensure reinstatement types and guarantee periods are fully costed and compliant.
As EHV Electrical Estimator, you’ll be responsible for preparing robust, accurate, first principles cost estimates for HV substation projects. You’ll interpret technical drawings and employer specs to develop detailed cost models for primary plant, secondary systems, and associated civil and commissioning works. Your estimates will help drive competitive tenders, frameworks and project approvals.
Develop first-principles cost estimates for EHV substation components: transformers, switchgear (AIS/GIS), protection systems, busbars, etc.
Evaluate supplier/subcontractor quotes and align with technical requirements.
Incorporate NRSWA legislation, permit schemes, lane rental costs, and traffic management plans.
Interpret layout drawings, SLDs, specs, and ERs.
Review civil drawings, utility records, and GI data to inform your cost assumptions.
Apply suitable contingencies, escalations, and allowances based on uncertainty.
Maintain clear estimate back-up, risk registers, and audit trails.
Build accurate cost models for materials, plant, labour, prelims, and indirects.
Liaise with engineering and construction to understand buildability and assumptions.
Produce traceable and auditable pricing schedules aligned to project scope.
Tailor cost models to reflect route-specific constraints, phasing, and methodology.
Build up rates for trenching, joint bays, HDD/trenchless crossings, duct installation, backfill, and reinstatement.
Identify and account for SEDs, congested zones, or third-party interfaces.
Develop first-principles cost estimates for civil elements of EHV cable routes.
Factor access, site conditions, outages, and productivity rates into your methodology.
Identify exclusions, value-engineering options, and risk assumptions.
As an EHV Civils Estimator, you’ll be responsible for producing detailed first principles cost estimates for Extra High Voltage (EHV) underground cable routes (typically 132kV–400kV). Your estimates will be built from scratch, utilising your in-depth understanding of trenching, ducting, joint bays, street works, and permitting, to ensure every submission is compliant, accurate, and commercially viable.
Support internal reviews and governance processes.
Knowledge of HV construction methods, plant installation, testing, commissioning, and site constraints.
Experience interpreting utility route layouts, GI data, and technical specs.
Cabling Estimator
Excellent knowledge of NRSWA, local authority permit schemes, and streetworks regulations.
Able to interpret civil/electrical drawings and technical specs.
Strong skills in MS Excel, Word, Project, and Outlook.
Factor in labour, plant, materials, and prelims based on real productivity norms.
Proven ability to estimate from first principles using real-world productivity.
Understand cable system requirements, e.g. thermal backfill, spacing, and installation tolerances.
5+ years’ experience estimating civils works for EHV/HV cable route projects.
Substation Estimator
Strong experience building estimates from first principles (not historical averages).
5+ years in electrical estimating, preferably for 132kV–400kV substation or transmission projects.
Price for night/weekend working, embargo periods, and restricted access scenarios.