Sun, Wind and Light - Brown

Talk about a book that would have been great to read 5 years ago.  It is broken into three parts: analysis techniques ,design strategies and strategies for supplementing passive systems.  (i rented it, so good luck checking it out.)  I am focusing on what brown refers to as the ".balance point.  This is defined as the outdoor temperature at which the heat generated inside the building balances the buildings heat loss, to maintain a desired inside temperature." (p.52)  In other words, once a building has a desired temperature, the amount of energy used to heat and cool the building can be measured.  This would be essential technique in the amount of energy your building consumes.