One of the interesting twists in the sale of House 5 is that I priced the solar electric system as an option, since it was an income generator, making $1,250/year of electricity. Ultimately the house was purchased by our friend and next door neighbor in the cohousing. He is a staunch Tea Party Republican, and quite knowledgeable about investments and money, but solar isn't part of what the drill baby drill party wants to hear about. So he wasn’t willing to pay the $5,000 bargain price we offered on the PVs (a four year tax-free payback here!) So we had them removed ($500 cost) and had a new layer of shingles installed on that roof. So we kept our 4.76 kW PV system for about $2,000 and it’s re-installed now on the new place.