The new directive introduces a series of measures to help accelerate energy efficiency, including embracing the energy efficiency first principle in the energy and non-energy policies.

Changes from the previous directives 2018/2002 and 2012/27/EU include the following

Establishing an EU legally-binding target to reduce the EUs final energy consumption by 11.7% by 2030 (relative to the 2020 reference scenario). This includes for each Member State the requirement to set its indicative national contribution based on objective criteria reflecting national circumstances. If the national contributions do not add up to the EU target, an ambition gap mechanism is applied by the Commission.
Increasing annual energy savings from 0.8% (at present) to 1.3% (2024-2025), then 1.5% (sures.
Introducing an annual energy consumption reduction target of 1.9% for the public sector as a whole.
Extending the annual 3% buildings renovation obligation to all the levels of public administration.
Introducing a different approach, based on energy consumption, for business to have an energy management system or to carry out an energy audits.
Bringing in a new obligation to monitor the energy performance of data centres, with an EU-level database collecting and publishing data.
Promoting local heating & cooling plans in larger municipalities.
Progressively increasing the efficient energy consumption in heat or cold supply, also in district heating.