CoolSys Energy Design

Engineering Solutions That Power Your Bottom Line.

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About the firm

CoolSys Energy Design, formerly Energy Squared, is a national consulting engineering practice headquartered in Princeton, New Jersey. It provides integrated mechanical, electrical, plumbing, refrigeration, building controls, and fire protection (MEPR/FP) engineering design and analysis for both new construction and existing building remodels. Operating with more than 100 professionals across offices in New Jersey, Texas, and California, it supports commercial, industrial, retail, hospitality, mixed-use, and multifamily residential markets. As a signatory to the MEP 2040 Challenge, CoolSys Energy Design emphasizes sustainable technology, decarbonization, and energy-efficient building performance.

Team
Midsize
Firm type
Automation & Controls · Fire Protection Engineering · MEP · Electrical Engineering · Mechanical Engineering

Credentials

LEED AP · Certified Energy Manager (CEM) · National Association of Home Builders Certified Green Professional (CGP) · Building Performance Institute (BPI) Professional · MEP 2040 Challenge Signatory · Commissioning Authority (CxA)

People

Ben RosenzweigPresident

Christopher CupoVice President

Yoram PerelmanVice President and Director, New Jersey HQ

Shane BestDirector, Texas

Landon WestManager of Operations, California

Clive SamuelsAdvisor

Allan SamuelsAdvisor

Capabilities

Mechanical and HVAC Engineering

Service website

Provides comprehensive heating, ventilation, and air conditioning design for diverse facilities. The practice specializes in optimizing indoor air quality, managing precise humidity levels, and integrating energy-efficient upgrades for chillers, boilers, and compressors.

  • Heating, Ventilation, and Air Conditioning Systems
  • Chiller and Boiler Central Plants
  • Dehumidification and Humidity Control
  • Decarbonized Heat Pump Systems
  • Variable Air Volume Systems
  • Indoor Swimming Pool Environmental Systems
  • Cooling Tower and Fluid Cooler Engineering
  • Supermarket HVAC Integration

Electrical Engineering

Service website

Delivers sophisticated power and lighting designs tailored to new construction and modernization projects. Focus areas include power distribution networks, standby power generation, and specialized studies to ensure equipment safety and code compliance.

  • Building Power Distribution
  • Solar Photovoltaic Systems
  • Battery Energy Storage Systems
  • Standby Generator Integration
  • Facility Lighting and Photometrics
  • Arc Flash and Protection Coordination Studies
  • Building Co-Generation Integration

Plumbing Engineering

Service website

Designs high-performance water and gas distribution systems for commercial, industrial, and residential projects. Technical capabilities focus on water conservation, regulatory alignment, and efficient sanitary drainage solutions.

  • Domestic Hot and Cold Water Distribution
  • Natural Gas Piping Networks
  • Sustainable Water Collection Systems
  • Sanitary Drainage and Grease Interception
  • Roof Drainage and Stormwater Systems
  • Hot Water Boiler Systems

Refrigeration Engineering

Service website

Pioneers sustainable cooling systems for commercial and industrial applications, particularly within the supermarket and cold storage sectors. Engineering expertise covers low global warming potential solutions and natural refrigerant configurations.

  • Low Global Warming Potential Refrigeration
  • Transcritical CO2 Systems
  • Micro-Distributed Refrigeration Systems
  • A2L Refrigerant Systems

Fire Protection Engineering

Service website

Engineers comprehensive safety solutions to prevent, detect, and control fire hazards. Work includes the design of fire sprinkler systems, alarm networks, and specialized hazard protections conforming to national standards.

Energy Audits and Financial Incentives

Service website

Identifies operational savings and offsets project expenditures through detailed facility audits and program administration. Engineers help clients secure utility rebates and financial incentives for energy-efficiency upgrades.

Commissioning

Service website

Provides independent verification that physical systems are installed, programmed, and performing according to project specifications. Verification applies across mechanical, electrical, plumbing, and control architectures.

Building Automation and Control Optimization

Service website

Maximizes long-term efficiency and facility performance through customized energy management strategies. Engineering includes the full layout and networking of building automation systems.

Combined Heat and Power (CHP)

Service website

Designs co-generation facilities that simultaneously produce electricity and useful heat. This approach significantly reduces utility expenses and improves resource efficiency across industrial and commercial buildings.

Energy and Emissions Modeling

Service website

Conducts advanced whole-building simulations to evaluate performance, emissions, and sustainability profiles. Analysis supports decarbonization strategies, green building certification, and the deployment of renewable technologies.

  • Building Energy and Emissions Simulations
  • Renewable System Feasibility Evaluations
  • LEED and WELL Certification Support
  • Electrification Feasibility and Planning

Industries

Commercial · Retail · Industrial · Hospitality · Sports & Recreation · Multifamily Residential · Mixed-Use · Pharmaceutical · Freight & Logistics · Food & Beverage

Projects

Atrium Palace Condominiums

Fort Lee, NJ · Multifamily Residential

Project details

Engineered mechanical, electrical, plumbing, and fire protection systems for a large-scale residential condominium building.

Brooklyn Navy Yard

Brooklyn, NY · Industrial · Client: Brooklyn Navy Yard

Project details

Provided comprehensive MEPR/FP systems design and engineering solutions for the historic industrial park and modern commercial hub.

Fairway Markets

Multiple Locations, NJ, NY, CT · Retail · Client: Fairway Markets

Project details

Designed high-efficiency commercial refrigeration and integrated HVAC systems for multiple grocery store locations.

Mehadrin Dairy

Elizabeth, NJ · Food & Beverage · Client: Mehadrin Dairy

Project details

Delivered specialized industrial refrigeration, HVAC, and electrical engineering design solutions for a dairy processing facility.

CoolSys Energy Design - Engineering Firms