Hotel Carbon Footprint Calculation: What Data to Collect
Who is this guide for?
This guide is for hotels, holiday resorts and boutique accommodation businesses that are calculating their carbon footprint for the first time, or that want to put an existing calculation on a firmer footing. We explain step by step which data a hotel carbon footprint calculation needs, how that data is divided into Scopes 1, 2 and 3, and where reduction work can begin.
What is a hotel carbon footprint, and which businesses does it concern?
A hotel carbon footprint is the total of greenhouse gases a property emits, directly and indirectly, through its activities over a given period, expressed in carbon dioxide equivalent (CO2e). The calculation covers the whole of a hotel's day-to-day operation: from the fuel burned for heating and hot water and the electricity drawn by air conditioning, to the gas used in the kitchen and the food waste that ends up in the bin.
It is particularly relevant to properties that work with international tour operators, want to obtain a sustainability certificate, or are asked for emissions data by corporate clients. The internationally recognised methods are the GHG Protocol (Greenhouse Gas Protocol) and the ISO 14064-1 standard; both classify emissions according to their source.
Regular monitoring of energy and water use is also expected under tourism-specific schemes such as Yeşil Anahtar (Green Key). The data collected for a carbon calculation can therefore be used directly in certification work as well.
Calculating a hotel carbon footprint step by step
The calculation moves through setting the boundary, collecting activity data, sorting that data into scopes and multiplying it by suitable emission factors. The steps below make this process concrete for a hotel.
1. Set the boundary and reporting period
The first step is to decide which buildings, activities and period the calculation will cover. It should be stated clearly whether the main building, annexes, staff housing, spa, laundry and hotel-owned shuttle vehicles fall within the boundary. The reporting period is usually a calendar year; for seasonal properties, maintenance and security consumption during the closed months should also be included.
2. Scope 1: fuels burned on site and refrigerant gases
Scope 1 covers direct emissions from sources under the hotel's own control. Natural gas or LPG used in boilers and kitchens, diesel burned in generators, and fuel for hotel-owned shuttle vehicles and boats all belong here. Refrigerant gas topped up during the year in air conditioners, cold rooms and fridges is treated as leakage and also counts in this scope; because it is easy to overlook, it should be tracked separately from technical service records.
3. Scope 2: purchased electricity
Scope 2 covers indirect emissions from purchased electricity (and steam or heat, if any). The data sources are electricity bills and meter readings, with monthly consumption recorded in kWh. Electricity generated by rooftop solar panels and used on site is not drawn from the grid, so it reduces this item; generation data should be recorded separately.
4. Scope 3: water, waste, transport and purchased goods
Scope 3 covers indirect emissions that arise in the hotel's value chain but outside its direct control, and it is the broadest group. Mains water supply and wastewater treatment, waste sent for disposal, outsourced laundry, purchased food and drink, staff commuting and guest transfers can all fall into this group. It is not mandatory to calculate every item in full in the first year; the report should clearly state which items are included and why others have been left out.
How water and waste are measured matters. Water use should be recorded from meters in cubic metres, and waste by type (organic, packaging, mixed) in kilograms or tonnes; delivery documents from the waste contractor are a reliable source for this.
5. Apply emission factors and calculate an intensity indicator
Each piece of activity data is converted to CO2e by multiplying it by a current emission factor suited to that source. For electricity, the current national grid factor is used; for fuels and refrigerants, values from recognised sources are used, and the name and year of the source should be stated in the report. Alongside the total, calculating an intensity indicator such as emissions per guest night or per occupied room night makes it possible to compare years with different occupancy.
6. Where does reduction start?
The soundest approach is to start with the item that takes the largest share of the calculation. In hotels, the first area to examine is energy use: air conditioning, hot water, pool heating and the kitchen. Boiler and heat pump efficiency, insulation of hot water pipes, controlling air conditioning via key cards or balcony door sensors, LED lighting and solar water heating are commonly used measures. Preventing refrigerant leaks through regular maintenance, reducing food waste at the buffet and separating waste at source are also low-cost first steps.
Data to collect: a checklist
Before starting the calculation, the following data should be ready for the reporting period, on a monthly basis where possible.
Electricity bills and meter readings (kWh), plus solar panel generation records if any
Purchase invoices for natural gas, LPG, diesel and fuel oil, and tank stock records
Generator running hours and fuel consumption
Fuel records for hotel-owned vehicles, boats and shuttles
Type and quantity of refrigerant gas added to air conditioning and cooling systems (technical service forms)
Meter readings for mains water and well water (m³)
Waste quantities by type and delivery documents from the waste contractor
Quantity of outsourced laundry (kg)
Monthly guest nights and occupied rooms
Number of staff and how they travel to work (shuttle, private car, public transport)
Distance and vehicle details for guest transfers
Common mistakes and points to watch
A frequently encountered problem in practice is that data is scattered across different departments. Invoices may sit with accounting, meter readings with technical services and waste documents with the environmental officer; appointing a single person in charge and a shared spreadsheet before starting makes the work noticeably easier.
Other points to watch are:
Leaving out refrigerant top-ups: even small amounts of gas can noticeably affect the total because of their high global warming potential.
Counting the same consumption twice: electricity used to pump well water is already in Scope 2 and should not be added again as a water item.
Using the invoice amount (TL) instead of the quantity consumed: the calculation should use physical units such as kWh, m³, litres and kilograms.
Using an outdated emission factor, or one without a stated source.
Reporting the result only as total tonnes: without an intensity indicator, years with different occupancy cannot be compared.
Not documenting the first year's calculation: if the method and assumptions are not written down, the same calculation cannot be repeated in later years.
Notes for hotels in Antalya
For accommodation properties in Antalya, seasonality and climate have a marked effect on the carbon calculation. Air conditioning load rises in the summer months, while consumption falls at properties that close in winter; collecting monthly data therefore gives more meaningful results than looking only at the annual total.
At all-inclusive properties, the buffet and kitchen deserve separate attention for both energy and food waste. Fitting separate meters to high-consumption units such as pool heating, the spa and the laundry makes reduction opportunities easier to see. The region's sunny climate makes solar water heating and rooftop solar panel investments worth considering.
International tour operators and travel platforms may ask properties for sustainability and emissions data. You can get support from our corporate carbon footprint consultancy service to set up the calculation, prepare the data sheets and build a reduction plan.
Frequently Asked Questions
What data do I need to calculate a hotel's carbon footprint?
The basics are electricity, natural gas, LPG and diesel consumption, refrigerant top-ups, water use, waste quantities and the number of guest nights. Properties that want to extend Scope 3 also add staff commuting, guest transfers, outsourced laundry and purchased food data. Keeping data monthly and in physical units makes the calculation easier.
What do Scopes 1, 2 and 3 mean for hotels?
Scope 1 is the fuel the hotel burns in its own boilers, kitchen, generators and vehicles, plus refrigerant leaks. Scope 2 is emissions from purchased electricity. Scope 3 covers other indirect emissions in the value chain, such as water supply, waste disposal, purchased goods and transport.
How does a seasonal hotel calculate its carbon footprint?
Seasonal properties can also calculate over a calendar year and include maintenance, security and staff housing consumption during the closed months. To make results comparable, an intensity indicator such as emissions per guest night should be used alongside total emissions.
Where should I start reducing my carbon footprint?
Starting with the item that takes the largest share in the first calculation is the most effective route. In hotels, this review begins with energy use, meaning air conditioning, hot water, pool heating and the kitchen. Refrigerant maintenance, reducing food waste and separating waste at source are also low-cost first steps.
Ask Us
Contact us to calculate your hotel's carbon footprint with reliable data and build a practical reduction plan; let us map out the right path for your property together.
Written by Okan Nas, Environmental Engineer, Asel Çevre Danışmanlık.
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