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Energy efficiency measures - Commercial - Building envelope - Windows

Template assignment

Base case
  • North face of building is oriented 25° east of north

  • Heating and air conditioning
Proposed case
  • Replace glazing with windows that have lower heat loss and lower solar gain:

  • No change in infiltration expected
  • Incremental cost for replacing with energy efficient windows $2,185
Other opportunities
  • What will be the savings if the set temperatures are changed by 2 °C?
  • What effect will more efficient windows have?

Solution

The worked-out solution is the data file selected from within the RETScreen Project Database. The user automatically downloads the Project Database file while downloading the RETScreen software.