E-mail Subscription
The following example uses a model of a supermarket to illustrate the potential energy savings from replacing conventional glazing in refrigeration display doors.
Assumptions
Total glass door area: 300 m²
Internal cabinet temperature: −5°C
Ambient indoor temperature: 25°C
Temperature difference: 30°C
Operating schedule: 24 hours a day, 365 days a year
The estimated annual electricity consumption is as follows:
| Glazing type | U-value (W/(m²·K)) | Estimated annual electricity consumption |
|---|---|---|
| LandVac vacuum insulated glass | 0.45 | 35,478 kWh |
| Traditional insulating glass | 2.6 | 204,984 kWh |
| Single-pane glass | 5.5 | 433,620 kWh |
Based on these model estimates, vacuum insulated glass can reduce annual electricity consumption attributable to the glazing by approximately 83% compared with traditional insulating glass and up to 92% compared with single-pane glass.
These figures illustrate the potential energy-saving benefits of improving the thermal performance of refrigeration display doors. Actual savings will depend on the glazing area, cabinet design, refrigeration system efficiency, operating conditions and other factors. The figures should therefore be treated as model-based estimates rather than guaranteed savings for every installation.
From reducing energy consumption to helping prevent condensation, vacuum insulated glass can transform refrigeration glazing from a potential weak point into a performance advantage.
For commercial display cabinets, household refrigerators, wine coolers and other temperature-controlled appliances, LandVac Titanium Vacuum Insulated Glass offers a way to combine thermal insulation, clear product visibility and more efficient operation in a slim glazing solution.
