We made do with the lot location and maximized the building's performance through good design as much as possible. For instance, the homes front on the east so we have incorporated a lot of windows there to allow for good morning light (i.e. the master bedroom has two stories worth of windows). Fortunately, there won't be anything taller around the development so we will be able to place the solar panels facing south with no obstructions.
As for the open vs. closed loop debate, we are still receiving bids on this and determining the most effective way, if at all, to incorporate the solar hot-water system into pre-heating the radiant floor system. The green roofs will be covered in wild flowers and will be hands off (we weren't sure how many people were up for mowing their roofs!). It will certainly help with storm water reduction, but this will only be a value-add on top of the energy conservation and roof life extension. There is also 220+ sq. ft roof patio made of recycled tires so people can enjoy views of the roof garden as well as the city skyline.
I hope this helps and if you are interested in coming to our sales center grand opening in a few weeks, please PM me and I'll add you to the list.
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