| 1. | Allows to formally complete the construction of a new house and obtain authorization for its use |
| 2. | Increased awaraness on the costs related to energy consumption of the house |
| 3. | knowledge that allows to determine whether it is necessary to invest in additional isolation of the house to optimize heating costs. It turns out that the heating losses resulting from bad insulation can double the cost of heating |
| 4 | Additional argument (advantage) when selling the apartament. Energy performance certificate will be a proof that the house has adequate energy infrastructure and its purchase is an exellent investment. |