http://www.legislation.gov.uk/eur/2020/2155/article/2Commission Delegated Regulation (EU) 2020/2155 of 14 October 2020 supplementing Directive (EU) 2010/31/EU of the European Parliament and of the Council by establishing an optional common European Union scheme for rating the smart readiness of buildings (Text with EEA relevance)Commission Delegated Regulation (EU) 2020/2155Commission Delegated Regulation (EU) 2020/2155 of 14 October 2020 supplementing Directive (EU) 2010/31/EU of the European Parliament and of the Council by establishing an optional common European Union scheme for rating the smart readiness of buildings (Text with EEA relevance)2021-02-01King's Printer of Acts of Parliamenthttps://webarchive.nationalarchives.gov.uk/eu-exit/https://eur-lex.europa.eu/legal-content/EN/TXT/?uri=CELEX:32020R2155texttext/xmlen2020-10-14 Definitions Article 2 For the purposes of this Regulation, the following definitions apply: ‘smart readiness indicator’ means an indicator that informs on the rating of smart readiness of a building or building unit in line with Article 8(10) of Directive 2010/31/EU; ‘smart readiness indicator scheme’ means a system of certification of smart readiness of buildings; ‘economic operator’ means a natural or legal person who owns a building located on the territory of a Member State, or a natural or legal person who owns or occupies a building unit located on the territory of a Member State, and who requests a smart readiness indicator certificate for that building or building unit; ‘smart readiness rating’ means the rating of the building or building unit in accordance with the methodology set out in this Regulation; ‘smart readiness score’ means the score obtained by a building or building unit as part of the process for rating smart readiness; ‘system’ means a system that can be found in a building and that is relevant to the scope of smart readiness rating as set out in Directive 2010/31/EU, including but not limited to technical building systems as defined in Article 2 of Directive 2010/31/EU; ‘smart readiness key functionality’ means one of the three key functionalities referred to in point 2 of Annex IA of Directive 2010/31/EU; ‘impact criterion’ means a key impact that smart-ready services are designed to achieve, as set out in this Regulation; ‘technical domain’ means a collection of smart-ready services which, together, realise an integrated and consistent part of the services expected from the building or building unit such as heating; ‘connectivity’ means the ability of systems to exchange data with each other and the ability of the building or building unit to exchange data, with the grid and related entities, such as an aggregator, or other buildings; ‘interoperability’ is the ability of a system to interact for a common purpose, based on commonly agreed standards, by exchanging information and data; ‘cybersecurity’ means the activities necessary to protect network and information systems, as well as the users of such systems, and other individuals affected by cyber threat; ‘smart-ready technology’ means a technological enabler, such as building automation, for one or more smart-ready services; ‘smart-ready service’ means a function or an aggregation of functions provided by one or more technical components or systems. A smart-ready service makes use of smart-ready technologies and orchestrates them into higher-level functions; ‘smart readiness indicator certificate’ means a certificate recognised by a Member State or by a legal person designated by a Member State, which indicates the smart readiness of a building or building unit, calculated according to the methodology set out in this Regulation; ‘functionality level’ means the level of smart readiness of a smart-ready service; ‘weighting factor’ means a parameter that is used in the calculation of the smart readiness indicator to express the importance of a given technical domain or impact criterion in that calculation; ‘ventilation’ means a process by which fresh air flow rates are managed to maintain and improve indoor air quality according to applicable requirements; ‘energy balance’ means an approach by which certain weighting factors may be adapted based on the climate zone of the building.