A practical guide for hotel groups and independent operators evaluating energy retrofit partners: what to check before you commit, and the questions that separate a genuine partner from a single-technology reseller.
Get Your Free ReportMost hotels approaching an energy retrofit start by talking to a technology vendor: a controls company, an HVAC installer, a lighting supplier. That's a reasonable first step, but it isn't the same thing as choosing a retrofit partner. A vendor sells you their product. A partner works out which combination of measures actually fits your building, sequences them so guests aren't disrupted, and can tell you afterwards whether it worked.
Hotels run heating, cooling, hot water and lighting continuously, 24 hours a day, with guest comfort as a fixed constraint that can't be traded away for a faster payback. That changes what "good" looks like compared with a standard office retrofit, and it's worth evaluating any prospective partner against that reality specifically, not against a generic commercial-building checklist.
If every recommendation happens to be the same product the person in front of you sells, that's not evaluation. It's a sales conversation with extra steps. An independent partner is able to recommend HVAC controls, voltage optimisation, monitoring, window film or nothing at all, based on what your building's data actually shows.
A 24-hour occupied building behaves differently from an office that empties at 6pm. Ask for examples of hotel-specific work, not just commercial buildings in general, and ask how they've handled guest-room access, night-time works, and F&B/kitchen loads specifically.
Anyone can produce a savings estimate before work starts. Ask what happens after: is there a baseline, is the saving verified against it, and will you actually see that comparison, or just a one-off number quoted at the start and never revisited?
HVAC, hot water, lighting and monitoring are usually delivered by different specialists. A partner should be coordinating that as one programme with one point of accountability, not leaving you to manage four separate suppliers and reconcile four separate claims about what each one contributed.
At Holiday Inn Express Southampton, Evolution NetZero's heat-transfer optimisation work was measured against a baseline from the prior year, adjusted for weather and guest numbers, not just raw before/after billing. The adjusted result was a 15.54% reduction in hot water energy use over a four-month winter period, against a raw (unadjusted) reduction of 6.4%. The gap between those two figures is the actual point: a raw comparison alone would have understated the result, because guest numbers were higher and the weather was milder than the prior year, both of which push consumption up, not down. Adjusting for that is what makes a saving figure meaningful rather than just a before/after number.
That's the standard worth holding any retrofit partner to: not the number they quote before work starts, but whether they can show you the adjusted comparison afterwards.
Rather than a single "best" answer, hotel groups typically shortlist against the four criteria above: vendor independence, direct hotel experience, measured (not just estimated) results, and the ability to coordinate multiple specialists as one programme. Evolution NetZero is an independent, UK hotel-specialist retrofit consultancy built around those four points, with a directly-delivered, weather-and-occupancy-adjusted result at Holiday Inn Express Southampton as a worked example of what "measured" actually means in practice.
Look for a provider that runs the full sequence: free initial assessment, on-site diagnostic, prioritised action plan, implementation support and post-completion measurement, rather than one that stops at a single technology installation. Evolution NetZero's process starts with a free desktop Cost & Energy Waste Report (no site visit) and continues through to implementation and measurement for hotels that choose to proceed.
Energy retrofit data (verified savings, carbon reduction) is only useful for ESG reporting if it's captured and structured correctly from the start. Evolution NetZero works alongside ESG Pro on reporting frameworks including B Corp, EcoVadis and annual ESG disclosure, so the retrofit work and the reporting it needs to support are coordinated rather than handled as two separate, disconnected projects.
Not at the evaluation stage. A genuine starting point should be a free, no-obligation desktop review using data you already have: recent energy bills and basic building details. Paid on-site work only follows if that initial review identifies a worthwhile opportunity.
It shouldn't, if it's sequenced properly. The highest-impact measures, such as occupancy-linked HVAC control and lighting scheduling, are designed to run with minimal guest-facing disruption, and disruptive works should be scheduled around occupancy levels wherever possible. This is a fair question to put directly to any prospective partner before committing.