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Energy Saving Technologies

SSI considers the total picture when addressing challenges to a community.  A significant challenge today is reducing costs in the energy sector.   SSI focuses on technology that reduces heating and cooling requirements for a variety of applications as well as tackling Cold-Chain logistics challenges and fuel improvement measures.  SSI also looks for the latest and best technology to pass savings on to customers.  In some cases, when both of these efforts are combined, the customer is rewarded with significant cost savings.   SSI has done the work for you and represents industry's best technologies to improve your energy savings for HVAC, Cold Chain Logistics, and fuel economy.    All reduce carbon footprint and are environmentally friendly. 

Bio Phase Change Material (BioPCM)

BioPCM based solutions are used in a broad range of applications driven by specific temperature control needs. The Go-To-Market strategy is organized in three business units


Engineered to improve comfort, reduce HVAC consumption, run-time and cycling in buildings and IT facilities.

• Retail • Commercial • Hospitality • Retrofitting

• Roofing • New Construction • Cell tower shelters • Data rooms


Bulk thermal storage for commercial and industrial applications.

• HVAC load shifting • Industrial heat recovery


Precise temperature control for transport of:

Biologics, pharmaceuticals, produce, and prepared food

• Pharma logistics • Bulk PCM • Trucking & freight • Refrigerated (Reefer) Operations

• Catering • Last mile delivery • Storage & handling

Bio Phase Change Material (BioPCM)®

BioPCM® harnesses the power of phase change materials (PCM) to improve energy efficiency and thermal storage solutions.

BioPCM® is

  • A phase change material made from sustainably grown, all natural, food-based grade vegetable oils.
  • A low-cost proprietary blend of emulsifiers, gelling agents, fatty acids and their derivatives. The product is 100% recyclable and biodegradable.
  • Non-Toxic.
  • The factory can set a tunable congruent melting and freezing temperature, ranging from -58°F to 347°F based on the customer’s specific needs and installation application.  This means a customer can select the desired temperature for their zone and the temperature is regulated to this temperature, e.g., customer desires 72 degrees:  the ENRG blanket radiates hot/cool to maintain this temperature. 
  • Perfect for arid and desert climates where the cool evening air is captured and dispersed during the day and the hot air is dispersed during the evening to maintain an even loading for HVAC systems.
  • Available in multiple fire classes, including Zero Smoke/Zero Flame plenum.
  • A LEED and BEES (Building for Environmental and Economic Sustainability) friendly.
  • Formulated for long life, > 100 years

Energy Savings for Cold-Ch​ain Logistics

Cold-Chain logistics is a growing global market. Ability to get fresh products to market is key to the success of food transport company's bottom line. A major consideration when conducting cold-chain logistics is maintaining a fleet of refrigerated trucks and containers that meet the requirements of the customer. In both cases, this requirement is driven by some form of energy tradeoff and environmental consideration. SSI is partnered with Green World Tek , LLC and BioPCM Solutions to bring an exceptional product to the road, sea, and intermodal "reefer container" market. Coupling BioPCM's® no-carbon footprint and environmentally safe material with Green World Tek's proprietary distribution system provides a superior product that significantly reduces the cost of powering refrigeration unit compressors supporting cold-chain logistics. The information below provides a snapshot into the capabilities of the Active Thermal Transport (ATT)™ system

Active Thermal Transport ™ System Featuring BioPCM™

Testing: Multiple Carriers Tested/Validated the Active Thermal Transport system

Without ATT™ system: A long-haul, 53’ refrigerated carrier conducted a fuel consumption test on a compressor during a 49-hour cooler run transporting a 34K pound load. The set point was 34° F with average outside temperature of 57.5° F. The compressor was on 57.4% of the run.

With ATT™ system: The carrier conducted a fuel consumption test on the same reefer box and compressor during a 68-hour cooler run transporting a 36K pound load. The set point was 34° F with average outside temperature of 61° F. The compressor was on 0.086% of the run.

Installation of the ATT™ system resulted in an 85% reduction of compressor “on time” consuming 85% less diesel fuel 

What is the ATT™ System?

A non-intrusive system of two layers of panels housing the BioPCM® material installed on the refrigerated truck/container.

Installed on the ceiling at a depth of 1.63” and an area of 34’ x 80” for each panel.

A 53’ Reefer Box requires 136 panels housed in channels double stacked (additional panels can be included for greater BTU thermal storage).

Install requires two people and about ½ day for a 53’ reefer box (install team can be company personnel or an SSI/GWT installation team).

The ATT™ is adaptable to trailers outfitted with an air chute (center or corner).

Huck Rivet fasteners are used to install the systems providing superior security of panel.

Total weight for the ATT™ on a 53’ trailer is 550 lbs.

Approximately 2,800 BTUs per row (8 panels).

350 BTU storage per panel, 47,600 BTUs (approx. 4 Ton) thermal storage on 53’ trailer.

950 BTU thermal storage per linear foot for planning considerations (i.e., 20’ TEU = 19,000 BTU).

Easily modified to customer’s requirements.

System is easily transferrable to other refrigerated trailers when required.

Actual Reefer Box Installation (featured right)

110 inches height

102 inches wide

53 ft long

swing door

inside width: 98 inches

ATT features 40ft of panels

4-hour installation

Panels will be slightly adjusted for roll door

ATT™ Features

  • Maintain a setpoint temperature between negative 85° F and positive 347° F.
  • BioPCM® (Phase Change Material) is plant-based, environmentally safe, lightweight, non-flammable, no carbon footprint.
  • A passive system requiring no external energy source other than the initial cooling air charge provided by the cooling compressor and the transported load’s natural thermal storage.
  • Uses include cryogenically frozen, frozen, sub-zero, refrigerated, & cool.
  • Truck-adaptable systems designed for a 53’ reefer produce a minimum of 47,600 BTU (approx. 4-ton) thermal storage.
  • Set Phase Change temp at 37.4° F for coolers/docks.
  • Set Phase Change temps at +5° F to -85° F for freezers.
  • Temperature stability/resilience / Thermal N+1 Redundancy (12 hours).
  • Compressor run-time/cycles shows significant reductions resulting in fewer maintenance hours and less fuel consumption.
  • Peak demand load shifting / enhanced/supplemental Fly-wheeling all positive factors improving cooling conditions.
  • Internal reefer temperature bandwidth swing reduced from industry standard of +/- 16° F to +/- 8° F.
  • Maintains a useful operational life of 30 years. Transferrable to other trailers/containers.
  • Validated through Lemark Services Engineering and calculated using ASHRAE 2014 Handbook for Refrigeration systems.

ATT™ Cost Savings

The below Example features the cost savings with and without an ATT system.  A conservative 50% reduction in cooling compressor "on time" and a standard compressor usage of 5400 hours per year at an average diesel fuel cost of $5.57 (7/2022)

ATT Cost Savings of $12,783 per year = 50%

Average ROI: 13 months or less

Various kit sizes available.

Volume discounts providing additional cost savings and greater ROI available. 

Without ATT™  (+5 C)

Compressor Reduction: 0%

Assume 5,400 hrs/yr. (18hr/day/300 days).  

No ATT modification.

5,400 hrs/yr @ 0.85 gal/hr fuel consumption = 4,590 gals

4.590 gals @ $5.57/gal = $25,566 per year fuel cost

With ATT™  (+5 C)

Compressor Reduction: Conservative 50%

Assume 5,400 hrs/yr. (18hr/day/300 days)

 ATT modified Reefer operates 2,700 hrs/yr

2,700 hrs/yr. @ 0.85 gal/hr fuel consumption = 2,295 gals

2,295 gals @ $5.57/gal = $12,783 per year fuel cost