ENRG Blanket™ Cuts a Retail Chain’s Energy Costs

Commercial retail operations and convenience store chains operate under tight margins where continuous refrigeration and thermal conditioning represent significant operational expenditures. For multi-site retail operators, maintaining constant indoor setpoints against solar gain, open entrance doors, and heavy indoor equipment loads places continuous strain on mechanical HVAC systems.

Recent enterprise deployments confirm that passive thermal energy storage via plant-based Phase Change Materials (BioPCM®) offers a non-mechanical method to stabilize indoor climates. By integrating ENRG Blanket™ directly above acoustic drop-ceiling tiles, retailers are flattening peak cooling curves, cutting compressor cycling, and lowering grid electricity demand.

Traditional building envelopes rely on sensible insulation (such as fiberglass or mineral wool) that merely slows the rate of conductive heat transfer. In contrast, Phase Change Materials (PCMs) store and release vast quantities of thermal energy as latent heat during a physical phase transition between solid and liquid states.

1. Latent Heat Capacity and Concrete Equivalence

Manufactured by Phase Change Energy Solutions in Asheboro, North Carolina, the BioPCM® inside ENRG Blanket™ is derived from sustainably sourced, plant-based vegetable by-products.

• Thermal Capacity: Provides a latent heat storage capacity of 110 BTU/lb (255 J/g).
• Thermal Density: A flexible ENRG Blanket sheet measuring less than 0.5 to 1 inch thick provides the identical thermal heat capacity of a 24-inch-thick solid concrete slab over the same footprint.
• Lifecycle & Stability: Tested through more than 36,500 continuous melt-freeze cycles (equivalent to 100 years of daily thermal transitions) without performance degradation or chemical separation.

2. Tunable Phase Transitions

ENRG Blanket is engineered with precise transition setpoints tuned to specific commercial interior climates:

• Q23:  () transition threshold
• Q25:  () transition threshold
• Q27:  () transition threshold
• Q29:  () transition threshold

When ambient ceiling plenum temperatures rise above the designated setpoint (e.g.,  with Q25), the microscopic pockets of BioPCM absorb surplus heat without rising in temperature, preventing thermal bleed-through into the customer zone. As ambient temperatures drop below the threshold at night or during economizer cycles, the material solidifies and discharges its stored thermal energy, recharging itself for the next operating day.

In its June 23, 2026 Sustainability Report, global convenience operator Alimentation Couche-Tard (Circle K) documented the enterprise-scale deployment of ceiling-mounted Energy Blankets across its retail network.

“.In North America this year, we installed Energy Blankets at over 1,000 locations, spanning from California to Canada saving approximately 45,000,000 kWh. Installed in the store ceiling, the Energy Blanket captures heat when the store is warm and releases it when the store is cold. This has cut run-time of our HVAC systems by 25%, resulting in lower energy and maintenance costs and extending the life of our equipment.”

Circle K’s enterprise data aligns with multi-month utility field research. In a 12-month controlled evaluation conducted by Arizona Public Service (APS) at the STAR test facility in Phoenix, Arizona, two identical wooden commercial test buildings with standard fiberglass insulation were compared side-by-side. The building retrofitted with BioPCM achieved:

• 20% average annual kWh savings
• 29% peak monthly savings during peak seasonal swings
• HVAC cycle reductions of 20% to 25%, cutting peak demand fees

According to data compiled by the National Association of Convenience Stores (NACS), modern retail c-store formats vary significantly by floorplan, operational density, and building geometry. The following matrix applies empirical data from Circle K fleet deployments (averaging ~45,000 kWh saved per retrofitted location) across standardized c-store formats.

Assumptions: Blended commercial electricity tariff of $0.14 per kWh; HVAC runtime cut of 20% to 25%; drop-ceiling coverage applied over sales floor and non-walk-in conditioning zones.

1. Direct kWh Reductions: Slashing cooling runtimes during high-temperature hours.
2. Peak Demand Shifting: Shifting HVAC load outside of 4:00 PM – 9:00 PM peak utility billing windows. In high-demand retail rate structures, peak capacity charges account for 30% to 70% of total utility bills.
3. Compressor & Fan Wear Reduction: Reducing compressor on/off cycling frequency by 20% to 25% extends rooftop unit (RTU) asset lifespans by multiple years and prevents premature mechanical failure.

ENRG Blanket™ is purpose-engineered to eliminate operational downtime during installation. Retailers do not need to alter ductwork, upgrade structural hangers, or disrupt sales floor revenue.

• Physical Form: Manufactured in flexible modular panels encased in rugged poly/poly or foil barrier films.
• Placement: Laid directly overtop standard ceiling tiles in commercial T-grid suspended drop ceilings.
• Installation Velocity: A certified four-person crew equipped with basic step ladders averages 1,000 square feet per hour, allowing a typical convenience retail floor to be retrofitted overnight in under 4 to 6 hours.
• Life Safety & Compliance: Exceeds Class A fire and smoke ratings under ASTM E84, UL 723, and ASTM E800-099, making it certified for installation in return-air ceiling plenums.

Deploying thermal storage materials across distributed multi-site real estate requires rigorous engineering validation, baseline verification, and end-to-end installation oversight.

Biz-Reps serves as an authorized turnkey technical solutions partner for Phase Change Materials and ENRG Blanket™. Rather than acting as a standard catalog distributor, Biz-Reps manages the full project lifecycle:

1. Facility Energy Audit & Baseline Profiling: Analyzing store geometry, regional climatic degree-days, existing RTU tonnage, and historical interval smart-meter load curves.
2. Thermal PCM Sizing & Tuning: Matching the correct phase change activation profile (Q23, Q25, or Q27) to specific building HVAC setpoints and occupancy profiles.
3. Turnkey Deployment: Directing vetted, national certified installation teams for off-hours retrofit execution without customer disruption.
4. M&V (Measurement & Verification): Tracking post-install run-time reductions, utility peak load shift, and ESG Scope 1/Scope 2 greenhouse gas abatement reporting.

AI-driven heat loads keep rising fast. At the same time, global rules on PFAS and fluorinated fluids grow stricter. This mix demands a real shift in cooling strategy, because firms that keep leaning on fluorinated chemicals face heavy risk, and the same is true for firms that rely on toxic open-loop towers. This long term risk is both operational and legal.

PolyCool™ membrane cooling offers a better path. Data center operators, facility architects, and sustainability officers can future-proof their sites. They gain a cooling solution that is fully PFAS-free and biocide-free, and it is also built for high-density AI work.

Direct Consultation: Contact our data center thermal specialists at +1 (563) 293-6484 or use the contact button below

CAGE Code: 9DYP1 (Government and Infrastructure Qualified)

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