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IndustryGlossary Term

Grid Interconnection

The process of connecting a power generation asset to the public electrical grid. For subcontractors, it triggers specific commissioning milestones, inspections, and sign-offs. Delays in interconnection approval can directly impact project timelines and invoicing.

Related Terms

Tunnel Liner

Industry

A structural shell installed inside a bored tunnel to support surrounding soil or rock and maintain bore integrity. Subcontractors installing liners must meet strict tolerances and inspection hold points. Work is often sequenced tightly with boring crews, requiring close schedule coordination.

Compression Station

Industry

A facility that boosts natural gas pressure to move it through pipelines over long distances. Subcontractors are frequently mobilised here for maintenance, mechanical work, and equipment inspections. These sites often require specific safety certifications and site orientations before work begins.

Call for Interest

Industry

A formal notice from an operator or prime contractor inviting subcontractors to express interest in upcoming work. It is not a binding tender but helps owners build a qualified vendor list. Responding early can position your company for the actual bid process.

Permanent Magnets

Industry

Fixed magnets that retain their magnetic field without external power, used in motors, sensors, and lifting equipment on job sites. Subcontractors handling this equipment must follow strict handling and storage protocols to prevent injury or tool damage. They are common in downhole tools, generators, and magnetic lifting devices.

Solar-Plus-Storage

Industry

A power system pairing solar panels with on-site batteries to supply electricity at remote job sites. Subcontractors may install, maintain, or work alongside these systems instead of diesel generators. Familiarity with this equipment is increasingly expected on off-grid oil and gas and construction sites.

PPA (Power Purchase Agreement)

Industry

A long-term contract where a buyer agrees to purchase electricity from a generator at a fixed price. For subcontractors, PPAs on large sites can affect whether temporary or permanent power infrastructure is in scope. Understanding site power arrangements helps clarify mobilisation costs and equipment requirements.

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