Rental of checking and measuring instruments and apparatus; measurement services; research in measurement technology; providing online non-downloadable software; providing online non-downloadable software on platforms enabling users to access and use software, computer networks, computer servers and computer and data storage systems; conception, development, design and updating of software; conception, development, design and updating of software for energy management; rental of software; consultancy and information services relating to software and computer hardware; creation (conception) and development of software for conducting, switching, transforming, accumulating, regulating or controlling electricity; consultancy services relating to energy saving, also in order to control the energy use; measurement services for recording data relating to energy use