The political objective is to reduce energy costs in public institutions, both to keep budgets down and to help reduce CO2 emissions.
Total cost principle
If a slightly higher acquisition cost will give substantial savings on current operating costs, allocation of funds in certain municipalities may be higher to allow the optimum energy solution to be selected.
Total costs = Acquisition price + Current operating costs
The cost of a good ventilation system is relatively small
compared to the total price of a large construction project.
But operation of the ventilation system is a relatively large part
of the building's subsequent operating costs.
It is therefore important to choose the right solution.