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North America / Commercial & demonstration

Hempstead – Port Washington Microgrid Feasibility Study

Organizations, planners, suppliers, equipment, controls, and reported system specifications—with source-level citations.

CoverageDetailed public record
Named organizations14
System facts11
Sources reviewed2
Last researched2026-07-19

The Port Washington Community Microgrid was a NY Prize Stage 1 feasibility design, not an operating plant. The official report names the entire project team and specifies a 926 kW design with CHP, solar, storage, and existing emergency generation across five critical-facility nodes.

Research status
Stage 1 feasibility study completed in April 2016; construction and operation not verified
Historical classification
Building
Reported capacity
See component specifications
Coordinates
40.83084, -73.69627
Evidence note: “Every company” cannot be proven from public material alone. This page lists every organization found in the recovered record and reviewed sources, preserves unknown roles, and explicitly marks undisclosed controller or equipment details.
Report missing evidenceResearch methodology

Project delivery

Who was involved in Hempstead – Port Washington Microgrid Feasibility Study?

14 publicly identified organizations. Where a recovered source named a participant without explaining its work, the role remains explicitly unspecified.

Organization

Hitachi Microgrids

Technical lead and microgrid design contractor [2]

Organization

Johnson Controls, Inc.

Additional technical consultant [2]

Organization

Landmark on Main Street

Senior-housing and critical-load participant [2]

Organization

National Grid

Natural-gas utility [2]

Organization

National Renewable Energy Laboratory

Renewable-energy and microgrid consultant [2]

Organization

New York State Energy Research and Development Authority (NYSERDA)

NY Prize program funder and study publisher [2]

Organization

Pace University Law School

Legal and regulatory consultant [2]

Organization

Port Washington Fire Department

Emergency-services participant [2]

Organization

Port Washington Public Library

Critical-facility and load participant [2]

Organization

Port Washington Union Free School District

Critical-facility and load participant [2]

Organization

Port Washington Water District

Critical-infrastructure participant [2]

Organization

PSEG Long Island / Long Island Power Authority

Electric utility [2]

Organization

Residents for a More Beautiful Port Washington

Community project participant [2]

Organization

Town of North Hempstead

Awardee and community project lead [2]

System evidence

Reported capacity and specifications

Values can describe different project phases or components. Source citations are attached to each figure so discrepancies remain visible.

Storage
NA [1]
Feasibility design size
926 kW serving approximately 4.96 GWh/year [2]
Proposed CHP
11 units totaling 616 kW [2]
Proposed solar PV
Six new systems totaling 310 kW, plus one existing 40 kW system [2]
Proposed storage
Ten systems totaling 150 kWh [2]
Existing emergency generation
Seven units totaling 1,712 kW [2]
Modeled installed cost
$4.347 million before investment-tax-credit assumptions [2]

Controls and hardware

Equipment and controller details

Manufacturer and model are shown only when a source names them. Generic descriptions are not converted into guessed product assignments.

01

Community microgrid controller

Hitachi Microgrids

Conceptual controller architecture for the five-node design; the feasibility report does not specify a commercial model number. [2]

02

Design optimization software

UL Solutions — HOMER Pro

Used to model and optimize the five nodes; this is a planning tool, not the field controller. [2]

Recovered detail

Additional technical notes

Concise system facts recovered from the historical project record. Treat these as historical unless a newer primary source confirms them.

  • General

    The proposed microgrid would use solar, energy storage, energy efficiency, and natural gas generation. [1]

  • Generation

    The proposed microgrid would use solar, energy storage, energy efficiency, and natural gas generation [1]

Provenance

2 sources

Primary owner, government, university, supplier, and engineering sources are preferred. Archived references preserve claims whose original pages moved or disappeared.

  1. [1]
    Recovered Microgrid Projects record

    Internet Archive · Archived source · captured 2021-04-20

  2. [2]

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