Hotel: GreenView HFT
Calculate hotel stay emissions with the GreenView Hotel Footprinting Tool (HFT), using coefficients by location and hotel star rating.
Overview
The GreenView Hotel Footprinting Tool (HFT) is an industry-recognized dataset of carbon footprint coefficients for hotel stays and meeting spaces worldwide. It is based on the Cornell Hotel Sustainability Benchmarking Index (CHSB) data, with more granularity and updated figures.
The GreenView HFT dataset:
- Covers about 200 countries, 100 sub-national regions and 450 market areas.
- Includes coefficients by hotel star rating (2 to 5 stars) and a hotel average.
- Is updated annually and adapted from the latest CHSB dataset.
- Is intended for hotel emissions calculations and sustainability reporting.
With GreenView HFT, online booking tools (OBTs), travel management companies (TMCs), online travel agencies (OTAs) and other stakeholders can calculate and communicate hotel emissions with improved accuracy and transparency.
Versioning
Add methodology_version to pin a specific GreenView HFT dataset year, for example "2024". Supported years are 2021 to 2026. If you leave it out, SQUAKE applies the latest supported year. Pin a specific year for reproducibility and auditability.
Sample requests
Send a quote before booking, then repeat the call with audit set to true once the booking is final.
{
"expand": ["items"],
"items": [{
"audit": false,
"type": "hotel",
"methodology": "GREENVIEW",
"external_reference": "string",
"country": "AU",
"city": "Sydney",
"stars": 4,
"number_of_nights": 1,
"methodology_version": "2024"
}]
}audit_for is optional
Pass the ID of an auditable entity when you calculate on behalf of that entity. Otherwise, leave it out.
Defaults
| Field | Default | Applies when |
|---|---|---|
methodology_version | Latest supported GreenView year | No methodology_version is sent |
Location fallback
When SQUAKE has no data for the location you send, it falls back one level at a time:
- No data for
city: falls back tostate. - No data for
state: falls back tocountry. - No data for
country: falls back tocontinent.
Stars fallback
- No data for the
starsyou send: falls back tohotel_average. - No
starssent: useshotel_average. - No known location: defaults to
32.69kgCO₂e per night.
Request fields
typestringrequiredhotel
methodologystringrequiredGREENVIEW
methodology_versionstringGreenView HFT dataset year, "2021" to "2026". If you leave it out, SQUAKE uses the latest supported year.
external_referencestringYour identifier for the item, up to 128 characters, so you can match results to requests.
countrystringISO 2- or 3-letter country code.
citystringFull city name. See the full list of supported cities.
statestringFull state name. See the full list of supported states.
starsintegerHotel star rating from 1 to 5. If it's unavailable or unsupported for a location, SQUAKE falls back to the hotel average.
number_of_nightsintegerNumber of nights. Minimum 1.
auditbooleanSet to true to create immutable audit records for finalised calculations. Must be enabled for your account.
POST /v2/calculations in the API referenceSample response
{
"carbon_quantity": 16193,
"carbon_unit": "gram",
"items": [{
"carbon_quantity": 16193,
"carbon_unit": "gram",
"external_reference": "string",
"type": "hotel",
"methodology": "GREENVIEW",
"methodology_version": "2024"
}]
}Citation
Cite the dataset
When you use the dataset, cite it as: Greenview Hotel Footprinting Tool Version 2024v1.1 (adapted from CHSB2024 data set of 2022 calendar year data). If you modify or adjust the data, include a clear note in the citation.
Bibliography
- Greenview. Hotel Footprinting Tool Version 2024. Greenview Hospitality Pte. Ltd., adapted from CHSB 2024.
- Ricaurte, Eric. Hotel Sustainability Benchmarking Index 2024: Carbon, Energy, and Water. Cornell University, 2024.