Net Zero Housing in Massachusetts - with optional car backup power

It's extremely encouraging to see developers starting to get into Net Zero homes.
Here is another in Colorado: green homes Denver | green buildings | green houses | New Town Builders

I love the fact though that Trasformations is building in enough solar PV to offset transportation needs as well!
Their comment about zero utility bills is misleading, unless they are off grid.
Over the year, the bills should net out to be virtually zero. We are building a net zero house ourselves. We expect to have utility bills in the winter, however we should have none in the summer, spring or fall.

 

You *do* have utility bills to pay -- the cost of being on the grid.
As for these specific homes, all I can say is that is lot of PV

Admittedly in Colorado and not MA, I just this morning calculated that a 4 kW net-metered array would completely fund the energy requirements of a 2500 ft*ft home and 8000 miles a year of EV driving for my relatively energy frugal, two people family. A large part of the reason for the much reduced PV requirement is my starting point with a PassivHaus build.

These home buyers who think they can bank 5 MWh of electricity with the utility for use in the winter for free are in for a rude awakening in the not too distant future.

"Pigs do not fly under the radar."