When we were first brought in to this project, it didn’t take long to notice that this was unlike any other enterprise we had been involved in. The walls between the various trades, engineers, architects and owners were nowhere to be found. If this project were a house, it would definitely be open concept.
The past 5 years have seen a significant drop in the cost of solar PV modules. A module that cost $2.50/watt in 2009 is now available for under $1/watt. This has significantly changed the way in which solar systems are now engineered. It’s no longer about maximizing the individual module; it’s about maximizing the total amount of energy your roof can produce, even at the expense of less output per module.