The program now meets all known requirements for simulation programs according to the Energy Directive.

Calculation of specific energy use and reporting according to BBR.

New ability to connect heat-producing units to the building's energy needs, such as solar collectors, heat pumps, various boilers, and combinations of these.

New improved economic function; the ability to directly compare up to five different options. The user chooses the complexity of the input.

New reporting of energy use; both reporting of the required fuel/primary energy for the building's heating needs, and reporting of the building's energy use (as before). The reporting is done both in table and bar chart form.

Graphical input as in BV^2^Arch is integrated in ver 2007. However, BV^2^Arch is still available separately as a free version.

The impact of thermal bridges can be calculated separately.

Reporting of the average U-value 'Um' is done separately.

New ability to use standard buildings and build your own set of standard buildings.

Skylights can be integrated into the roof structure.

Reporting of the distribution of energy losses for transmission, ventilation, etc.

Improved model of people's heat generation.