Кроме стандарта ISO 50001:2011 "Системы энергетического менеджмента. Требования и руководство по использованию" есть еще и
новые поступления ИСО в области энергоменеджмента

ISO 50002:2014
Energy audits -- Requirements with guidance for use

ISO 50003:2014
Energy management systems -- Requirements for bodies providing audit and certification of energy management systems

ISO 50004:2014
Energy management systems -- Guidance for the implementation, maintenance and improvement of an energy management system

ISO 50006:2014
Energy management systems -- Measuring energy performance using energy baselines (EnB) and energy performance indicators (EnPI) -- General principles and guidance

ISO 50015:2014
Energy management systems -- Measurement and verification of energy performance of organizations -- General principles and guidance

Источник: http://www.iso.org/