Transformer & HV Breaker Decommissioning & Recycling Services

Green Core is PTT’s specialized transformer and high-voltage breaker decommissioning and recycling division. As part of the Power Solutions Division, Green Core delivers safe, compliant, and environmentally responsible end-of-life asset management for utilities, cooperatives, and large industrial operators across the United States.

Backed by decades of hands-on experience, our crews handle the full lifecycle retirement of power transformers, HV breakers, and substation equipment — on-site or off-site — with a “safety always” approach that protects your people, your site, and the environment.

PTT Power Solutions: Who We Service & Support

Green Core is purpose-built for organizations managing aging electrical infrastructure under increasing regulatory, safety, and ESG pressure:

Investor-owned utilities (IOUs) retiring aging transformer and breaker fleets
Large public power authorities managing substation decommissioning programs
Electric cooperatives requiring cost-effective, compliant asset retirement
Industrial operators with end-of-life high-voltage electrical equipment

What Is Transformer & HV Breaker Decommissioning?

Transformer decommissioning is the structured, safety-compliant process of removing, draining, dismantling, and recycling power transformers and high-voltage breakers from service. Proper decommissioning requires specialized equipment, hazardous material handling expertise, environmental compliance protocols, and complete documentation for regulatory and audit purposes.

Green Core manages every phase — from initial site assessment and oil reclamation to metal recovery, environmental remediation, and final project documentation — ensuring utilities receive maximum asset recovery value with zero compliance exposure.

Green Core Supported Equipment

All OEM high-voltage power transformers and regulators
High-voltage breakers (all types and voltage classes)
Bushings, PTs, CTs, and CCVTs
Switchgear and associated controls
Wire, cable, and structural components
Battery systems
Transformer and breaker oil (Mineral, Silicon, Natural Ester — non-PCB <50ppm)
Turnkey substation decommissioning and demolition

Core Decommissioning Capabilities

PCB sampling and hazardous material assessment
Transformer oil draining, reclamation, and recycling
On-site transformer and breaker dismantling
Forensic teardown and failure analysis
Substation structure and foundation removal
Environmental remediation and site cleanup
Compliant transportation and materials logistics
Small unit disposal and component accessories recycling

Transformer & HV Breaker Recycling Services

Green Core integrates advanced recycling, oil reclamation, and materials recovery into every decommissioning project.

Our recycling programs are designed to maximize recoverable value from copper, steel, aluminum, and transformer oil — delivering a financial return that offsets decommissioning costs while supporting your organization’s circular economy and ESG objectives.

Green Core Recycling
Program Highlights

Nationwide coverage across all U.S. regions
Transformer oil reclamation and recycling (non-PCB only)
Copper, steel, and aluminum materials recovery
Component and accessory recycling and remediation
Circular utility partnership programs for fleet-wide retirement planning

CarbonZero™ Decommissioning — Measurable Sustainability Outcomes

Green Core’s CarbonZero™ program transforms transformer decommissioning projects into quantified carbon-reduction initiatives — giving utilities defensible sustainability data suitable for board reporting, ESG disclosures, and regulatory filings.

How CarbonZero™ Works

Methodology aligned to recognized greenhouse gas frameworks, quantifying avoided CO₂e from metal recycling, landfill diversion, oil reclamation, and transportation optimization.
Material weights for copper, steel, aluminum, and other recoverables are recorded and applied against established emissions factors, then documented in a project-specific carbon ledger.
Results are reviewed internally and, when required, validated by independent environmental consultants.
Upon project completion, customers receive a certificate summarizing avoided emissions, recovered materials, and sustainability outcomes — ready for direct inclusion in ESG
eports and Scope 3 tracking systems.
Consistent methodology across multiple projects enables year-over-year comparison and cumulative carbon reduction reporting.

National Field Services — Transformer & HV Breaker Testing & Diagnostics

Transformer Testing & Diagnostics

Green Core’s national field service teams provide comprehensive transformer and HV breaker testing and condition assessment to support decommissioning decisions, life-extension planning, and asset optimization programs.

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Insulation, winding resistance, turns ratio, and polarity testing
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Core loss and load loss testing (no-load and short-circuit)
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Capacitance, Tan Delta, and oil breakdown testing
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Dissolved gas analysis (DGA) and furan analysis for condition assessment
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AC voltage withstand, partial discharge, and frequency response analysis (FRA)

HV Breaker Testing & Diagnostics

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Breaker timing, travel analysis, and contact resistance testing
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SF6 gas analysis and leakage testing
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Electrical control and protection system verification

Transformer Field Services — Maintenance, Oil Processing & Installations

Beyond decommissioning, Green Core supports the active management of transformer fleets in service through a full range of field maintenance, oil processing, and installation services.

Maintenance Services

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Re-gasketing and leak repair
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Bushing replacement and accessories service
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LTC (Load Tap Changer) maintenance, repair, refurbishment, and replacement

Oil Processing Services

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Vacuum oil filling
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Transformer dryouts
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Hot oil degassing and processing
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Oil testing and analysis

Installation & Relocation Services

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Complete transformer assembly and installation
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Disassembly, relocation, and recommissioning
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Transformer condition assessments and life-extension recommendations

Why Choose Green Core for Transformer & HV Breaker Decommissioning?

Transformer Lifecycle Management — From Commissioning to Retirement

Green Core is not simply a decommissioning contractor — it is a strategic lifecycle management partner. As part of PTT’s Power Solutions Division, Green Core collaborates with PTT engineering, manufacturing, and field service teams to support transformers and HV breakers at every stage of their service life.

Asset condition assessment and remaining life analysis
Lifecycle planning and fleet-wide asset optimization
Support for most substation equipment types and OEMs
End-of-life documentation for audit, regulatory, and ESG reporting purposes
Integration with PTT’s transformer manufacturing, spare parts, and emergency response programs

Nationwide Decommissioning & Recycling Coverage

Green Core operates across three national field service regions, providing consistent, scalable decommissioning and recycling capabilities wherever your assets are located.

National Field Infrastructure:

Three operating regions staffed by dedicated General Managers, Regional Service Managers, and field crews
Vacuum and oil-processing equipment deployed regionally for rapid mobilization
Complete transformer and HV breaker testing capabilities in each region
DOT-compliant fleet vehicles for safe, compliant materials transport
EH&S training, support, and compliance management
PTT Power Solutions Division engineering and factory engineering support

Decades of proven decommissioning experience across all major OEM transformer and breaker types
Safety-first culture with engineered safety protocols applied at every process step
“Safety Always” approach — the correct method and control applied every day, on every project
On-time, on-budget project execution with real-time digital progress tracking
Full regulatory compliance and end-of-life documentation for audit purposes
CarbonZero™ sustainability program delivering quantified ESG outcomes
On-site and off-site decommissioning flexibility to match your operational needs
Maximum asset recovery and return-on-asset programs
Backed by PTT’s Power Solutions Division — a fully integrated transformer manufacturing, service, and recycling partner

Green Core National Field Services – Coverage Areas

Three Operating Regions – GM, RSMs, Crews
Vacuum and oil-processing equipment
Complete regional testing capabilities
DOT fleet vehicle compliant
EH&S training and support
PSD Engineering and Factory Engineering

PTT National Field Services – Coverage Areas

Ready to Retire Your Power Assets the Right Way?

Contact Green Core today to discuss your transformer decommissioning, HV breaker recycling, or substation retirement project. Our team is ready to provide a no-obligation project assessment and asset recovery analysis. Questions? Call (724) 873-2100 or e-mail [email protected].

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