Supermarkets and grocery retailers are constantly balancing two priorities: energy efficiency and customer experience. Open refrigerated display cases are popular for their convenience and product visibility, but they also consume high amounts of energy. To address this, many stores look to two solutions: night covers and glass doors.
In this blog, we’ll explore how Econofrost night covers compare with glass doors in terms of energy savings, merchandising appeal, food preservation, and—most importantly—how shoppers interact with these two solutions.
Shopper Psychology in Supermarkets
The layout and design of a supermarket directly influence how shoppers behave. Studies show that shoppers make 70% of their purchase decisions inside the store, often based on visual appeal and convenience.
Key factors driving shopper behavior include:
- Product visibility – Can shoppers clearly see what’s available?
- Ease of access – Do they feel comfortable reaching for items?
- Perception of freshness – Does the display make food look appetizing and safe?
- Store atmosphere – Does the environment feel open and inviting?
Both night covers and glass doors affect these factors in different ways.
Glass Doors: Efficiency With Trade-Offs
Adding glass doors to refrigerated cases is a common energy-saving strategy. They create a physical barrier that reduces refrigeration load, cuts down on temperature fluctuations, and lowers operational costs.
However, from a shopper’s perspective, glass doors come with several drawbacks:
- Barrier to impulse purchases:- Shoppers are less likely to make spontaneous purchases when food is behind a barrier. Glass doors can discourage browsing, leading to fewer add-on sales.
- Reduced visibility:- Even with clear doors, reflections and condensation can obscure product visibility. Customers often skip over products they can’t clearly see.
- Access frustration:- Customers may find opening doors inconvenient—especially when pushing carts, carrying baskets, or shopping with children.
- Negative perception of freshness:- Food displayed behind glass may appear less fresh and less accessible compared to open cases.
For many retailers, these drawbacks directly impact shopper behavior and overall sales performance.
Night Covers: Energy Savings Without Compromising Daytime Shopping
Unlike glass doors, Econofrost night covers are designed to be used only after-hours or during downtime. During the day, display cases remain open, offering customers full visibility and easy access to products.
Here’s how night covers affect shopper behavior positively:
- Uninterrupted product visibility:- During business hours, there’s no barrier between the shopper and the product. This keeps displays attractive, inviting, and easy to browse.
- Boosted impulse buying:- With food openly displayed, customers are more likely to make unplanned purchases, benefiting overall sales.
- Perception of freshness and abundance:- Open displays give the impression of freshness and abundance—important psychological triggers for shopper confidence.
- No shopper inconvenience:- Customers don’t have to push open doors or deal with limited accessibility. Shopping feels smooth and natural.
Comparing Energy Efficiency: Night Covers vs. Glass Doors
Both solutions improve energy efficiency, but they work differently:
- Glass doors provide constant insulation, saving energy during all hours of operation but at the expense of accessibility.
- Night covers deliver 36%–50% hourly energy savings in open cases when pulled down after-hours, protecting food and reducing refrigeration load.
The advantage of night covers lies in their flexibility. They can be deployed when needed—at night, during power outages, or in emergencies—without impacting daily operations.
ROI: More Than Just Energy
Retailers evaluating ROI calculators for night covers vs. glass doors often discover surprising results.
- Glass doors: Higher upfront cost, ongoing maintenance (hinges, seals, replacements), and potential loss in sales due to shopper hesitation.
- Night covers: Lower installation cost, easy retrofit on existing cases, consistent energy savings, and protection against shrinkage during power outage emergencies.
When factoring in shopper behavior and lost sales opportunities, many retailers find that night covers deliver a faster and more sustainable ROI.
Shopper Behavior Case Example
A supermarket chain in North America compared sales across two store formats:
Store A: Refrigerated cases with glass doors
Store B: Open refrigerated cases with Econofrost night covers for after-hours use
Results showed:
- Store A had 15% fewer impulse purchases in categories like dairy and deli due to reduced product accessibility.
- Store B maintained high impulse sales while still achieving energy savings overnight with night covers.
This case highlights how shopper behavior directly influences profitability and why open cases with night covers often outperform glass door setups.
Sustainability and Shopper Perception
Modern consumers are increasingly eco-conscious. They want retailers to operate sustainably while still offering a convenient shopping experience.
Night covers deliver on both fronts:
- They reduce carbon emissions by lowering refrigeration loads.
- They extend shelf life, minimizing shrink and food waste.
- They demonstrate a store’s commitment to energy management without sacrificing customer convenience.
Shoppers notice these details. When retailers use solutions like reflective aluminum night covers or motorized night covers, they can promote themselves as sustainability leaders, which strengthens customer loyalty.
Choosing the Right Solution
So, which is better—night covers or glass doors?
- If the priority is constant insulation with less focus on shopper engagement, glass doors may be an option.
- If the priority is balancing energy savings with shopper-friendly displays, night covers are the superior choice.
Retailers who want performance, cost savings, and customer satisfaction often find that Econofrost night covers are the smarter investment.
Final Word: Shopper Behavior Defines Success
Energy efficiency is critical in today’s competitive retail environment, but so is the customer experience. While glass doors can cut energy costs, they often do so at the expense of shopper behavior, product visibility, and sales performance.
Night covers, on the other hand, deliver the same energy savings benefits overnight while keeping displays open and inviting during the day. They strike the perfect balance between sustainability, profitability, and customer satisfaction.
For retailers focused on maximizing both ROI and shopper loyalty, the choice is clear: night covers win over glass doors when it comes to influencing shopper behavior.
Learn more at: econofrost night covers