Hotel pilot – detailed description
This page provides a detailed, step-by-step explanation of the Green AC&DC Energy™ hotel pilot: how we define the ΔE* baseline, how measures are grouped in phases and what we ask in the online inquiry form.
NOTE: ΔE* is part of the Green AC&DC Energy™ Δ-Indicator™ methodology, developed by Lirim Muharemi to quantify and present real energy, cost and CO₂ savings in hotels.
How the hotel pilot works – detailed steps
- Selection of a pilot hotel One property is selected as a reference hotel – for example a flagship or a technically representative building in your portfolio. This hotel becomes the test-bed for measures and ΔE* reporting.
- Data collection and ΔE* baseline Electricity bills for the last 12 months, basic technical data and operating profiles are collected. A ΔE* baseline is defined so that savings can be expressed clearly in kWh/year and €/year, with simple indicators that are easy to present to owners and investors.
- Identification of key measures Main consumer groups are analysed: guest rooms, minibars and other in-room equipment, kitchens, laundry, pools and wellness, common areas and technical systems. Measures are grouped into phases – from quick wins to deeper renovation steps, so that you can start with actions that have the highest impact and shortest payback.
- Pilot concept and phased implementation A phased concept is prepared, aligned with the hotel’s investment capacity and comfort requirements. Measures can be implemented by the hotel, an ESCO partner or a combination of both. The concept includes an indicative timeline and expected ΔE* savings per phase.
- Results, ΔE* reporting and replication Indicative or measured savings are reported using the Δ-Indicator™ / ΔE* methodology. Once the approach is validated in the pilot, the same model can be replicated across other hotels in the group or wider portfolio, with clear benchmarks per room and per area.
Typical areas we analyse in a hotel
Each hotel is different. In the pilot, we focus on areas with the highest impact and shortest payback.
The result is a clear list of practical measures: which devices should be replaced first, which settings can be optimised and what effect this has on your yearly electricity consumption.
Illustrative example – 100-room hotel
To illustrate the principle, we take a simplified example of a 100-room hotel.
If the continuous power related to room equipment is reduced by just 50 W per room, the total power reduction is:
- 100 rooms × 50 W = 5 kW
For a hotel operating 24/7 throughout the year (8,760 hours), this corresponds to:
- 5 kW × 8,760 h ≈ 43,800 kWh/year
At an electricity price of 0.13 €/kWh, this is about:
- 43,800 kWh × 0.13 €/kWh ≈ 5,700 €/year in savings – in just one hotel, from one group of measures.
When additional areas are included (kitchens, laundry, pools, wellness, common areas), and when the methodology is rolled out across multiple hotels in a group, the potential moves into the range of tens of thousands of euros per year, depending on the starting point and electricity prices.
This example is indicative only. Real results depend on the existing equipment, operating schedules, climate and occupancy. The Δ-Indicator™ / ΔE* methodology is designed to show these differences transparently.
CO₂ emission factor note: Unless otherwise stated, CO₂ savings shown in this pilot are calculated using an illustrative factor of 0.245 kg CO₂ per kWh of electricity, corresponding roughly to an average European electricity mix. For concrete projects, this factor is adapted to country- or region-specific values published by competent authorities or recognised databases.
What information do we ask in the online form?
The inquiry form is not a contract. It is a way for us to understand your hotel and prepare a realistic pilot proposal. The form usually takes 5–10 minutes to complete.
Typical questions include:
- Basic hotel details (name, location, category, number of rooms and suites).
- Occupancy profile (seasonal or year-round, typical occupancy in high and low season).
- Key kitchen and cold-chain equipment (number and type of dishwashers, fridges, freezers, display fridges).
- Current situation in guest rooms (minibars yes/no, kettles, AC units, thermostats or central control).
- Electricity consumption (recent bills or yearly kWh and cost, if available).
- Contact person for technical and financial questions.
You can start with partial information. If something is not known at the moment, simply indicate it in the form and we will ask for details later.
Note: We do not promise or guarantee grants. We help you prepare the data and concept that can be used later for national or EU funding opportunities.