30 Hours at -22°C: What Frozen Performance Really Looks Like

We state 24 hours of cooling autonomy as standard. That covers most operations without needing to plug in mid-shift.

But during a recent two-week trial with Store Logs, one of their frozen runs delivered 30 hours of continuous cooling at -22°C - South Kirkby to South Wales, no plug-in required.

Mark Coventry, their Group Logistics Director, called it "one of the best trials we've ever had as a company." The performance data backed him up. Here's what we learned - and why it matters for anyone running temperature-controlled operations.

Frozen, Chilled, Dual Temp - Built for Operational Reality

Store Logs ran both frozen and chilled operations during their trial. That's deliberate. Endurance handles single-temp frozen, multi-temp, dual-temp chilled - whatever the operation requires.

This isn't seasonal capability or "good weather" performance. These units run year-round in fleets across the UK and Europe. Tesco, DFDS, Ocado, Noble Foods - they're using Endurance on their daily schedules because it delivers the same job as diesel, just with different economics.

The 30-hour frozen run shows what the system does when you need it to. Frozen is demanding. Deep temperatures, long holds, limited margin for error. If it works there, everything else follows.

Control Without Thinking About It

Here's what makes the difference: we're recording data across 1,000+ points throughout every shift. Temperature, power draw, system performance, operating conditions - all tracked, all visible.

That data isn't just for us. It's how fleet managers get the control they need without having to micromanage the technology. You're not guessing whether the unit can handle tomorrow's schedule. You're seeing exactly how it performed today, yesterday, last week.

Store Logs received complete performance data throughout their trial - not at the end, but as it happened. Mark Coventry's feedback mentioned our "attention to detail." That's not just service. It's the system itself giving you the visibility to run your operation confidently.

The goal is simplicity. The unit does its job. You get the data you need to plan. That's it.

What We Actually Do During Trials

Store Logs wasn't our first. We're already operating in commercial fleets, so trials aren't about proving the concept works. They're about proving it works in your specific operation - your routes, your drivers, your schedules.

Here's the process:

Complete Data Access You see everything we see. Temperature performance, autonomy patterns, energy consumption. Real numbers from your actual routes, not manufacturer claims.

Direct Support Our team works with your operations throughout. Driver briefings, maintenance coordination, immediate answers if something looks off. We're making sure you're getting accurate results, not managing technical problems.

Operational Conditions We don't cherry-pick easy runs. Store Logs tested Endurance across their full delivery schedule, including that demanding 30-hour frozen route. If it's part of your operation, we want to see how the system handles it.

The feedback from Mark Coventry: "Your attention to detail has been excellent. It's been an eye-opener as to what we can achieve."

From Data to Decisions

What happens after the trial? We run a full analysis using the real-world data - route-by-route, shift-by-shift - and show you exactly what deployment looks like for your fleet.

Store Logs is getting their final performance review, complete re-simulation, and an in-person presentation of next steps. That's standard. We're not handing you a spec sheet and walking away.

The units already operating in customer fleets aren't there because of a successful trial. They're there because the data gave fleet managers confidence to deploy. That's the difference between testing technology and running a business.

If You're Considering Electric Refrigeration

We'll start with your operation. Your routes, your temperature requirements, your schedules. Then we'll show you what the system delivers - with complete data, direct support, and everything you need to make the call.

Because this isn't about trying something new. It's about running your cold chain with more control and better economics.

Book in a trial today.