TRANSFORMING THE UTILITY INDUSTRY

TRANSFORMING THE UTILITY INDUSTRY

WITH POWER WHEN AND WHERE YOU NEED IT Emerald Transformer offers nationwide services covering every phase of the transformer life cycle. Focused exclusively on the needs of the utility industry, our wellfinanced organization delivers single-source convenience and accountability and puts state-of-the-art transformer services within easy reach of every utility provider, regardless of size or geography.

DECADES OF EXPERIENCE. HARNESSED FOR THE FUTURE. Built from a core group of companies that formerly made up the Transformer/Utility Division of Versatile Processing Group, Emerald Transformer focuses exclusively on delivering unmatched service to utility customers and seeking innovative approaches to industry challenges. COMMITMENT TO QUALITY Since the 1970s, our component companies have consistently delivered the market s highestquality repair services and refurbished equipment. SPECIALIZATION AND VERTICAL INTEGRATION We are focused exclusively on the needs of the utility industry, and we deliver cradle-to-grave services covering every phase of the transformer life cycle. STABILITY AND CAPITALIZATION We have the extensive financial, managerial, and operational resources needed to effectively and consistently deliver a comprehensive range of services throughout the U.S. INDUSTRY CONNECTIONS Our continued relationship with metal processing experts allows us to maximize the value of recyclable materials by cutting out intermediaries and pass this value directly to our customers. COMMUNITY ACCOUNTABILITY Emerald Transformer is a network of well-established companies with outstanding reputations and long-standing ties to our communities and the industry. ENVIRONMENTAL RESPONSIBILITY We safeguard the health of the environment and the reputations of our customers by implementing internal protocols that meet and strive to exceed federal and state regulatory requirements. Today, the Emerald Transformer family is a fully integrated group of companies with more than 275 associates across the country, all committed to the success of our customers and the health of our communities and the broader environment. SERVICES ADDRESSING THE FULL TRANSFORMER LIFE CYCLE

TRANSFORMER REPAIR AND SERVICE A full range of repair services for transformers, regulators, reclosers, control panels, and other ancillary equipment. TRANSFORMER REFURBISHMENT Direct refurbishment of our customers existing transformers and the sale of refurbished transformers retired by other utilities. TRANSFORMER DECOMMISSIONING Comprehensive decommissioning, recycling, and PCB disposal services, including on-site dismantling of larger equipment and forensic teardowns. OIL PROCESSING AND LAB SERVICES Use of specialized, industry-leading, environmentally sensitive processing methods to treat dielectric oil for the removal of PCBs, unwanted water, and particulates and return processed oil to new life as lubricants and base oils, as well as regenerated transformer oil for the utility industry. Lab analysis of oil includes PCB testing, dissolved gas analysis, and other specialized tests. TRANSFORMER PARTS Parts and components for transformers, reclosers, voltage regulators, and substation equipment, with fast shipping and highly competitive prices. IN-FIELD TECHNICAL SERVICES Testing and repair services on most station equipment, including transformers, bushings, tap changers, radiators, reclosers, circuit breakers, regulators, and other ancillary equipment. CRADLE-TO-GRAVE SERVICES. DELIVERED BY A COMPANY YOU KNOW AND TRUST. With a nationwide transportation network, and an extensive team of on-site repair and decommissioning professionals, we deliver comprehensive services to investor-owned utilities, cooperatives, and municipalities nationwide. Along with convenience and efficiency, our vertically integrated approach delivers the peace of mind and security that come from working with an industry leader on every project, regardless of its size or complexity.

THE ENERGY OF THE NATION S BEST TRANSFORMER SERVICE COMPANIES. THE POWER OF A SINGLE PHONE CALL. We ve brought together some of the country s leading companies in the areas of transformer service, repair, refurbishment, and decommissioning to create an integrated network with the power to efficiently and economically deliver comprehensive transformer services to customers nationwide. FLORIDA TRANSFORMER The cornerstone of the Emerald Transformer network, Florida Transformer is a recognized leader in contract transformer refurbishment and the sale of refurbished equipment. Our fullservice facility also provides electrical equipment testing, equipment repair, decommissioning, lab analysis, PCB disposal, and oil processing. TRANSFORMER DECOMMISSIONING Located in Southern Indiana, Transformer Decommissioning provides electrical equipment testing, decommissioning, and disposal for transformer units of all sizes, as well as oil processing. ENVIRONMENTAL MANAGEMENT SYSTEMS An industry expert in oil recycling, Environmental Management Systems processes millions of gallons of dielectric oil annually. With two locations in Phoenix, Arizona, the company also provides complete electrical equipment processing and recycling services. TRANSFORMER GASKETS & COMPONENTS TGC uses volume buying to command low prices and keep large quantities of parts on hand in its own warehouses. This approach allows it to deliver very competitive prices to its customers, and also provide turnaround times that enable these customers to drastically reduce their own parts inventories. 4-WAY ELECTRIC 4-Way Electric has a reputation in the industry for outstanding work in the rebuilding of transformers, reclosers, and regulators. Located in Greenwood, Mississippi, the firm serves a broad range of electric cooperatives, municipal utilities, and power companies. GARRETT & SON Garrett & Son s headquarters in Madison, Mississippi is one of the Southeast s most advanced facilities for the repair, remanufacture, and decommissioning of electrical distribution equipment, with the resources to handle virtually any size and type of distribution equipment on the market today.

DIVISION OVERVIEW SERVICE In-House Decommissioning In-Field Decommissioning In-House Maintenance & Repair In-Field Maintenance & Repair Oil Processing / Aggregating Refurbishment Distribution Assembly Sampling Emerald Transformer 4509 State Hwy 83 DeFuniak Springs, FL 32433 850.892.2711 phone power@emeraldtransformer.com www.emeraldtransformer.com

TRANSFORMER REPAIR IN-HOUSE SERVICES Minor check and repair Defective parts repaired or replaced Unit tested and repainted Appropriate when the transformer coil is dry and in good condition Recondition Defective parts repaired or replaced Bake-out performed to extend transformer life Unit tested and repainted Emerald Transformer provides a full range of repair services for single-phase and threephase transformers, regulators, reclosers, control panels, and other ancillary equipment. Our transformer services range from minor repairs to more comprehensive reconditioning and even full rewinds. All equipment repaired at any of Emerald Transformer s facilities is backed by a 3-year warranty. Services are provided at our state-of-the-art 100,000-square-foot repair and refurbishment facility in DeFuniak Springs, Florida, as well as at our facilities in Greenwood and Madison, Mississippi. Through these facilities, we serve customers throughout the country, and we include professional pickup, delivery, and customized handling on every job. Regularly scheduled shipments between our nationwide family of companies enable us to provide these delivery services while maintaining competitive prices. We also have a staff of field technicians able to perform on-site diagnosis and repair of many transformer problems anywhere in the United States. Rewind New coil is built to match existing core steel and tank Unit tested and repainted Appropriate when a coil is no longer fit for service Significant savings over a new unit FIELD REPAIR SERVICES Transformer leaks Bushing replacement Fuse replacement Oil retrofill Radiator repair Gauge repair At Emerald Transformer, we maximize the reliability, safety, and life expectancy of your unit by using only the best materials and most experienced team members in all of our repair work. Emerald Transformer 850.892.2711 phone power@emeraldtransformer.com email www.emeraldtransformer.com web

TRANSFORMER PARTS TRANSFORMERS (1PH & 3PH) Gaskets Tap changers Dual voltage switches Hardware kits Primary and secondary bushings Fuses Arresters Fluids PRVs Tanks and decals Etc. RECLOSERS (1PH & 3PH) During our nearly 40 years in equipment repair and maintenance, Emerald Transformer has established strong supply channels for both new and refurbished parts and components. Thanks to these relationships and the power of volume sourcing our customers get the parts they need at highly competitive prices. Our large warehouse facility allows us to stock a comprehensive range of parts and components for transformers, reclosers, voltage regulators, and substation equipment, and most of these stocked parts ship within 24 hours. Our experienced team of repair and refurbishment experts is available to help customers identify uncommon parts. For hard-to-find components that we don t have in stock, we work with our extensive vendor network to find the fastest and most economical source. Gaskets Coils Contacts Counters Bushings Hardware Nameplates Etc. VOLTAGE REGULATORS Gaskets Contacts Drain valves Capacitors Hardware PRVs Counters Bushings Nameplates Position indicators Etc. SUBSTATION EQUIPMENT Qualitrol sensors/gauges/prds Station class arresters Gasket material Emerald Transformer 850.892.2711 phone power@emeraldtransformer.com email www.emeraldtransformer.com web

TRANSFORMER DECOMMISSIONING For transformers that aren t candidates for refurbishment, we provide comprehensive decommissioning and disposal services, with a particular emphasis on safely detecting, analyzing, handling, and disposing of PCBs. In addition to breaking down and recycling equipment at our own facilities in Florida, Mississippi, Indiana, and Arizona, we can also dispatch seasoned field crews nationwide to dismantle larger equipment on-site or perform forensic teardowns to facilitate failure analysis. DISPOSAL Located at our facility in DeFuniak Springs, Florida, our state-of-the-art Scrap Metal Recovery Oven (SMRO) is capable of disposing of equipment with a PCB contamination level of 50-499 PPM PCB. The SMRO uses a method of thermal destruction per Title 40 CFR Part 761.72. The process is fully permitted under the regulations set forth by the Florida Department of Environmental Protection, Permitting, and Compliance Authority and USEPA Region 4. The SMRO is equipped with primary and secondary material-processing chambers and records regulatory compliance using a Continuous Emission Monitoring System (CEMS). Our 7,500-square-foot disposal building was specifically designed and engineered to eliminate any threat of PCB contamination to the outside environment. All electrical equipment is received and dismantled inside a multiple containment system within the building, and the building s monolithically poured floor is underlined with a 10 mil plastic liner and finished with two layers of epoxy coating. Our Florida location is also a USEPA Region 4-approved Commercial Storage Facility for the storage of PCB material requiring disposal. The combination of these two regulated activities ensures our clients of a limited environmental footprint, eliminating long-term liability in the disposal method of PCB-contaminated electrical equipment. RECYCLING Emerald Transformer currently recycles approximately 98% of each of the 150,000 units that we process every year, and we are constantly looking for new product streams for transformer components that can add value for our customers and decrease landfill deposits even further. We have the capability and equipment to shear, bake, and chop windings to increase the value of our customers recyclable materials. In addition, our continued relationship with metal processing experts allows us to eliminate intermediaries and further maximize the value of these materials. ON-SITE DECOMMISSIONING For equipment that is too large to transport to our facilities or that requires specialized demolition we can dispatch one of our seven field crews nationwide to perform onsite decommissioning. These teams of three to five seasoned veterans can handle the dismantling and removal of large substation transformers, as well as ancillary equipment such as oil circuit breakers, switch cabinets, and reactors. The teams take extensive precautions to ensure the safe containment and disposal of all materials, and they are committed to leaving every site in better condition than it was when they arrived. Emerald Transformer s on-site services also include forensic teardowns, which allow insurance companies, manufacturer s representatives, and engineers to visually inspect the condition of internal components when trying to determine the cause of a unit s failure. Emerald Transformer 850.892.2711 phone power@emeraldtransformer.com email www.emeraldtransformer.com web

OIL PROCESSING & LAB SERVICES We use specialized, industry-leading, environmentally sensitive processing methods to treat dielectric oil for the removal of PCBs, unwanted water, and particulates and return processed oil to new life as lubricants and base oils, as well as regenerated transformer oil for the utility industry. OIL RECYCLING Oil that is brought to our facilities for processing first passes through a multilevel operation that removes unwanted water and particulate matter. Following this initial water and particulate removal process, oil that contains from 2 to 49 PPM PCBs is directed to the plant s PCB-removal operation. PCB removal begins with the introduction of sodium metal into an aboveground storage tank containing 7,000 gallons of PCB-contaminated mineral oil. The oil is tested periodically to track the declining PCB levels, and once these levels are no longer detectable, the oil is transferred to a 20,000-gallon holding tank for additional processing. During this phase of the operation, excess sodium metal and unwanted particulates byproducts of the sodium metal/pcb reaction are removed and the oil is purified. At the completion of this process, a thirdparty laboratory certifies that the oil is free of PCBs, and it is transferred into one of three bulk-product tanks. The previously contaminated oil is now ready to begin a new life as an industrial lubricant or base oil. This entire purification process takes between one and two days, and we have the capacity to process 7,000 gallons of PCB-contaminated oil per day. REPROCESSED TRANSFORMER OIL In addition to recycling and reintroducing dielectric oil as lubricants and base oils, we are also able to reintroduce many dielectric oils back into the electrical utility industry as reprocessed transformer oil. The oil is filtered, degassed, and dewatered to return it to a proper specification. Emerald Transformer personnel use in-line testing equipment to closely monitor the process and ensure that the oil has reached purification standards. Once the oil recycling process is complete, an additional sample is taken, and an outside testing laboratory certifies that the oil is ready to be reintroduced as a dielectric fluid. LAB ANALYSIS While our standard turnaround time for dielectric oil PCB analysis is five business days, we also offer a 24-hour turnaround option when time is limited. Our typical lab analysis covers the following: PCB in oil per gas chromatography Moisture content in oil by KF Dielectric breakdown voltage PCB on surface wipe Using the Sonic Ruptor 400 Ultrasonic Homogenizer Dissolved gas analysis, ASTM screening, and soil analysis Emerald Transformer 850.892.2711 phone power@emeraldtransformer.com email www.emeraldtransformer.com web

IN-FIELD TECHNICAL SERVICES We offer a full spectrum of in-field services, from on-site repairs and testing to commissioning of new substations and diagnostic evaluations. Our field service technicians can troubleshoot and repair any type of substation equipment, including wiring, relays, controls, and transformers. TRANSFORMERS TESTING Perform Megger, TTR, power factor, winding resistance, excitation current, and hi-pot tests. VISUAL INSPECTION Thoroughly inspect each unit for leaks along with broken or damaged components. Inspect and test all gauges, trip and alarm circuits, and fan circuits. Inspect sudden pressure relay and sudden pressure relief device, and test if necessary. Check nitrogen system for proper operation. BUSHINGS Inspect for leaks, cracks, and other possible damage. Test for overall power factor and capacitance. Compare measurements to nameplate data and check at each scheduled maintenance interval for degradation. Perform hot collar testing when necessary. NO-LOAD TAP CHANGER If TTR or winding resistance test shows a potential problem, perform internal inspection to determine if the tap changer needs to be repaired or replaced. Load tap changer. TTR test in all tap positions. Clean tap changer compartment. Check all contacts for wear and replace as necessary. Check operating mechanism, control, position indicator, limit switches, and counter for proper operation. Perform hi-pot test if equipped with vacuum bottles. Install new door gasket and new oil. RADIATORS Check shutoff valves and radiators for leaks. Inspect for obstructions and clean if necessary. Check to confirm fans are operational. CURRENT TRANSFORMERS Test with Omicron CT Analyzer and Megger. OIL TESTING Pull oil samples for DGA, moisture, and dielectric tests. Perform testing once a year to ensure there are no problems that could cause early failure. If oil tests show a potential problem, perform further testing for metals in oil and furanic compounds. Test at three-month intervals if any of the tests show abnormal results. Emerald Transformer 850.892.2711 phone power@emeraldtransformer.com email www.emeraldtransformer.com web

RECLOSERS Hi-pot Contact resistance Control timing tests Control installation Control upgrades Trip checks OIL CIRCUIT BREAKERS Megger Power factor unit and bushings Test timing, travel, and current draw on trip and close coils with breaker analyzer Contact resistance Check air compressor Check or change compressor oil Check compressor V belt Test air cut-out switches SF6 BREAKERS AND CIRCUIT SWITCHERS Megger Power factor unit and hot collar bushings Test timing, travel, and current draw on trip and close coils with breaker analyzer Check alarms and trip circuits Check SF6 gas for density and moisture and proper pressure level Controls Test electromechanical relays with Omicron CMC 356 Test solid-state relays with Omicron CMC 356 Relay upgrades CONTROLS Test electromechanical relays with Omicron CMC 356 Test solid-state relays with Omicron CMC 356 Relay upgrades REGULATORS Megger Hot collar test for power factor Winding resistance on all taps Test controls for proper operation Control panel upgrades OTHER STATION EQUIPMENT Control cabinets Change electromechanical to solid-state relays CTs and PTs Megger, ratio, polarity, CT analyzer, excitation knee point Lightning arrestors Power factor tests Ground switches Megger and timing Cables Megger and hi-pot GOAB Switches Visual inspection FIELD REPAIR Transformer leaks Bushing replacement Fuse replacement Oil retrofill Radiator repair Gauges We also offer oil processing and Envirotemp FR3 retrofilling along with infrared scanning to check for hot spots in all equipment, transformers, breakers, air break switches, and circuit switches. Emerald Transformer 850.892.2711 phone power@emeraldtransformer.com email www.emeraldtransformer.com web