I am an owner of a "vintage" home (built in 1920, minimal insilatuon in the attic, none in the walls or floor, original single pane windows). I can tell you that, at least in our climate (Houston) and at today's energy prices, a deep energy-conserving retrofit makes very little sense financially. And I'm only talking about insilatuon, no PV.If energy prices rose to the point where monthly savings from efficiency measures exceeded the cost of the monthly payments to finance the improvements, then this stuff would take off.Problem is if we let energy prices get that high without compensating in other areas (tax cuts, for example) no one will be able to afford to finance anything.I am a fan of the idea to phase-out the payroll tax and ramp-up taxes on non-renewable resource extraction.
CIMA Admin says:
Thanks for posing this question. You are correct in observing that an investment of any type is only as good as the anticipated ROI. U.S. Department of Energy has calculated that improving the energy efficiency of buildings practically always produces net positive returns within a few years. Every case is different, of course. Houston is a cooling climate, so electricity is far and away the major factor in the cost of maintaining a comfortable home. If the so-called “Clean Power Plan” is actually implemented electricity costs will skyrocket and the benefit of improving a home’s energy efficiency will also increase.