'지속 가능한 숙소 상태'란 무엇을 의미하나요?

As part of Airbnb commitments to serve all stakeholders, some homes can be highlighted on their listing page as energy efficient. Those homes are identified through the Energy Performance Certificate, a standard certificate delivered in different countries of the European Union. Energy Performance Certificates are delivered following an in-person home inspection, and they provide an objective and quantifiable measure of the energy performance of a home. Energy Performance Certificates range from A (very efficient) to G (least efficient). Only A and B homes qualify for this program. Airbnb updates this status using the address of the home and open data provided by the ministry of environment from each country.