The European Commission has sent an official warning letter to Bulgaria and 5 other member countries, in which it insists that they fulfill their obligations regarding the energy efficiency of buildings, BNR reports.
States should set minimum requirements in this regard to achieve the best combination of investment and savings, also known as "optimal spending levels".
The European Commission reminds that their calculation is of key importance for the countries of the Community, so that they fully use the potential of energy efficiency and renewable energy of buildings and do not allow people and businesses to spend more funds than necessary to improve efficiency of homes and offices.
The states have 2 months to answer and resolve the issue raised. Otherwise, the EC can send a reasoned opinion.