About / Capabilities

Engineering & Project Execution Teaming Partners

Island Structures PC and Sigma Energy Engineering PC are related companies that specialize in the design, construction, project management for commercial buildings and industrial greenfield development and brownfield facility modifications. Together, they are our technical teaming partners that provide a broad spectrum of energy efficient solutions for our clients – such as LED lighting projects; solar power energy projects from 1MW rooftop installation for buildings to large 50MW utility scale power facility projects, conventional fossil fuel power plants and waste to energy facilities (for Covanta technology plants); and over 100’s of installed MW capacity from wind turbine farms. More recently, they have been involved in fuel cell and battery storage projects.

These firms collectively have performed numbers of energy studies and facility assessments leading to full design of modifications utilizing advanced control techniques, and variable frequency drive motor applications. These have included modifications to the main steam systems, turbine extraction steam systems, feed-water and circulating water systems. All of these modifications resulted in increases in the overall efficiency of the facility.

They have performed operational due diligence reports to support private owners, bank lenders, equity investors and regulated utilities throughout the US, Europe and Asia. There engagements represented governmental authorities for water and wastewater systems, airports, traffic control systems, transit systems, technology ticketing systems and hydro power facilities and power generation facilities. They represented US Federal and State government on public-private partnerships for toll roads. Below is a list of projects.


Principals- Green Asset Energy Solutions, Inc.

PGIM Preferred Vendor

Formerly Prudential Real Estate Investors (Pramerica Real Estate Investors outside of the Americas, Japan and Korea), PGIM Real Estate is the global real estate investment arm of PGIM, with professionals in 18 cities around the world. The firm has consistently been the largest manager of worldwide institutional assets according to Pensions & Investments, an industry publication, and currently manages approximately $67 billion in global assets

USA- Capital Projects- Infrastructure & Fixed Assets

  • Texas Department of Transportation, Austin TX- LBJ Highway Managed Toll Lanes, P3
  • Virginia Department of Transportation, Dulles, VA -Capital Beltway “HOT” Toll Road, P3
  • US Department of Transportation, San Diego, CA – South Bay Expressway SR 125, P3
  • North Carolina Department of Transportation, Raleigh, NC -Triangle Expressway (NC 540)
  • California High Speed Railway Authority Sacramento, CA-HSR Project- Phase 1, P3
  • Puerto Rico Ports Authority – Municipal Parking Garages, P3
  • City of Harrisburg, Harrisburg, PA. – Municipal Parking Garages, P3
  • City of Worchester – Municipal Parking Garages, P3.
  • Gregory Canyon Landfill Project, San Diego County, CA.– Development
  • San Francisco Municipal Railway – Light Rail Trainsets
  • General Motors Corporation – Auto Manufacturing Facility
  • Toyota Corporation – Auto Manufacturing Facility
  • Rohm & Haas – Petrochemical Facility
  • Atlantic City Electric – Power Plant Desulphurization Equipment
  • American Airlines – Passenger Jets
  • Hughes Corporation – Communication Satellites

LED Lighting System Projects

    • New York State Department of Corrections, Bedford Hills, NY, Outdoor Lighting
    • New York State Department of Corrections, Sing Sing, Outdoor Lighting
    • New York State Assembly Chambers, Architectural Retrofit
    • NYU Winthrop Station Plaza Parking Garage
    • New York State Office of Children and Family Services Brookwood Center NY, Campus Outdoor Lighting
    • NYU Winthrop Research Center Outdoor Courtyard
    • Inashco Lancaster Recycling Facility
    • New York State Office of Children and Family Services Brentwood Center NY, Gymnasium.
    • NYU Winthrop Mineola Blvd Parking Garage
    • Potomac Edison Market Partner
    • Con Edison Market Partner
    • National Grid Market Partner
    • New York State Office of Children and Family Services, Highland, MacCormick, NY
    • First Data Corporation, Jersey City, NJ, Sugarland, Tx
    • FedEx-Lighting Specifications, Bethpage ,NY
    • Roosevelt Island Activity Center, New York, NY
    • NYS Fairgrounds Lighting Specifications,Syracuse, NY
    • OGS Preferred Source NYSID, Albany, NY
    • Ogdensburg Bridge & Port Authority, NY
    • SUNY Purchase, NY
    • SUNY Buffalo, NY
    • A&Z Pharmaceutical, Warehouse.
    • Village of Hempstead, NY
    • New York State OCFS Specification  Layouts Industry, Harriet Tubman
    • New York State Office of General Services-Albany, NY
    • RXR Construction and Development- 75 Rockefeller Center NY
    • Town of Herkimer Garages, Herkimer, NY
    • Delaware Academy CSD, Delaware, NY

International – Capital Projects – Infrastructure & Fixed Assets


  • Schiphol Airport Authority – Terminal, Jetways and Loading Bridges
  • NS Groep N.V. – Inter-City Trainsets
  • ARN BV – 2 – Waste to Energy Facilities
  • Europe Combines Terminals BV – Port Container Gantry Handling Cranes
  • Waterschap City of Vallei en Eem – Wastewater Facilities
  • Waterschap Rijn & Ijssel – Wastewater Facilities
  • Hoogheemraadschap van Uitwaterende Sluizen in Hollands Noorderkwartier – Wastewater Facilities
  • Waterschap City of Veluwe – Wastewater Facilities
  • Zuiveringsschap Hollandse Eilanden en Waarden – Wastewater Facilities
  • Stadtenwässerung Kaiserlsautern- Water and Wastewater Facilities
  • Delijn – Vlaamse Vervoermaatschappij – Coastal Light Rail Trains & Maintenance Facility


  • Denker and Wulf AG – 50 1.5WM Wind Turbines
  • REpower AG – 16 1.5WM Wind Turbines
  • VASA Energy GmbH – 2-Co-generation Power Plants
  • Mullverwertung Rugenberger Damm GmbH & Co. – Waste to Energy Power Plants
  • Mullverwertung Borsigstrasse GmbH – Waste to Energy Power Plants
  • Stadtwerke Schwerin GmbH-Water and Wassre – Water Facilities
  • City of Hamme, City of Sint Niklaas, City of Dendermonde – Wastewater Facilities
  • Leipsiger Verkehrsbetriebe Gmbh- Tram Line System Cars
  • Hamburger Hochbahn AG – QTE – Transit Traffic Control Equipment


  • Brussels International Airport- Baggage Handling Equipment
  • SNCB – InterCity Passenger Trainsets


  • SNCF- 10 InterCity Alstrom Passenger Trainsets

Teaming Partners- Island Structures Engineering, PC and Sigma Energy Engineering, PC

  • Isabella Geriatric Center New York, N.Y. – Chiller Replacement
  • Psychiatric Center, Harlem Valley, NY- Civil/Structural Boiler Replacement-
  • Columbia University New York, NY. – Chiller Retrofit
  • Medical Professional Building – Levittown, NY. – Civil/Structural Addition
  • King Edward VII Memorial Hospital Central Utility Plant- Bermuda
  • Fire District North Lindenhurst, N.Y. – Additional Facility
  • Adelphi University Welcome and Nexus Center Garden City, N.Y – Structural Steel Erection of 3-story facility
  • Aquarium Riverhead, N.Y. – Design & construction of building shells.
  • East Hampton Historic Town Hall Complex East Hampton, NY- Project construction management
  • Hampton Library Historic Structure Bridgeport, N.Y.- Project construction management building addition and renovations
  • Town of Islip Animal Shelter, Islip N.Y -Design and construction management of the new shelter
  • Window Wall System Manufacturing Plant, Melville, N.Y. – Design and installation of new overhead bridge crane at Islip Airport Jet Hangar Facility
  • Islip Airport, Ronkonkoma, N.Y.- Design & construction of hanger building shell
  • Warehouse and Millwork Facility, Calverton, N.Y.- Design and construction of building shell 110,000 sf
  • Electrical Power Generation Plant Turbine Building, Pinelawn, N.Y.- Design and construction
  • Movie Studio, Hicksville, N.Y.- Structural redesign & removal of columns
  • Montauk Schools, Montauk, N.Y.- Design & construction oversight of multiple projects – boiler replacement, playground, window replacement, & roofing replacement
  • Montauk Playhouse, Montauk, N.Y. – Community Center: 50,000 sf
  • Repurposed facility design project & construction management (Winner 2007 N.P.S Historic Preservation Award)