An existing facility or infrastructure that is being modified, expanded, or recommissioned rather than built from scratch. Subcontractors should expect tighter work windows, live-equipment hazards, and strict permit-to-work requirements. Scheduling and coordination with ongoing operations are critical on brownfield projects.
Brownfield Site
Related Terms
E&I (Electrical and Instrumentation)
IndustryA trade discipline covering the installation, maintenance, and commissioning of electrical systems and process instrumentation on industrial sites. Subcontractors in this scope typically hold specialised certifications and work across upstream, midstream, and construction projects. E&I scopes are commonly tendered separately from mechanical or civil work.
Condensate
IndustryA light liquid hydrocarbon that separates from natural gas during production and processing. Subcontractors handling condensate must follow strict hazmat protocols, as it is highly volatile and flammable. It is often measured and valued separately from crude oil on production sites.
Gathering Infrastructure
IndustryThe network of pipelines, compressors, and processing facilities that collect hydrocarbons from wellheads and move them to processing or transmission points. For subcontractors, it represents a major source of construction, maintenance, and inspection work. Projects often run concurrently with drilling programmes, creating tight scheduling demands.
Sequencing (construction)
IndustryThe planned order in which construction tasks must be completed before the next trade can begin work. Subcontractors depend on accurate sequencing to schedule crews and avoid costly downtime. Delays in one phase can push back your mobilisation and affect your invoicing schedule.
Baseload Energy
IndustryThe minimum level of power demand that a facility or site requires continuously, around the clock. For subcontractors, it determines whether remote worksites need dedicated generators or grid connections. Stable baseload requirements help crews plan equipment fuel consumption and maintenance schedules.
Behind-The-Meter
IndustryRefers to power generation or energy systems located on a client's side of the utility connection point. For subcontractors, this often means working on site-owned generators, solar arrays, or battery storage on industrial or remote worksites. Scopes here fall outside utility jurisdiction, affecting permitting and inspection requirements.
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