The Retiring Mind, Part VII: Sustainability

“How efficient can I get?” is a question I often ask myself. For almost a decade now my family has been working towards greater energy, water, and waste efficiency with a goal towards something like sustainability. It began with electric and hybrid cars and then, by 2013, we remodeled a house following a green sustainable model. All of the existing cabinetry, surfaces (as best could be done), and fixtures were non-destructively excised and passed to Habitat for Humanity. Nearly 10kW of photovoltaics were fixed to several roof surfaces. The only limitation was the HOA and CC&Rs of our California community that mandated a fairly uniform lawn requirement, thus limiting water conservation options. We could have battled for it, but the housing development itself spent north of $200K per year on gardening services, so it seemed an uphill fight to deviate from their idealized and fairly lush landscape plans.

So when remodeling our 1930s-era house in New Mexico, we went even further. In addition to 8kW of photovoltaics that push us easily into electricity producer over the course of a year, we added rainwater capture and reuse for watering a largely xeric collection of decorative landscaping plants plus some small food garden plots. The water system is not nearly as reliable as the PV systems, though even those have had some issues. I’ll get to pros and cons as I build out the basic designs further along. But I can certainly say that on balance the effort has been a net positive.

So, first, some design details.

Let’s start with the solar system. The 8kW of PVs are in two sections. 5kW is on a south facing roofline of our casita/office. We call it Chateau Derrière and it attaches to the previously unattached garage that dates to the 1930s and is comprised of stacked rock and a stick roof.… Read the rest

Flooding the Mystery Zone with Cynicism

The Mystery of the FoxI just finished planting one of my two urban garden plots here in Southern New Mexico. The circles had been left unattended and later covered with weed-control fabric that I topped with rock a few years ago when I visited from our Arizona home and discovered a vexing and disturbing collection of items buried in the soil. There was a child’s ball, a partially melted white candle, some marbles, a variety of small bones and strange animal remains, indeterminate masses of red and brown, unusual feces, and large pork chop bones. A shrine to strange, ancient deities? The remains of an ancient civilization? Our security camera coverage and the gates and fencing ruled out human activity. So we were left with wild animals, specifically gray foxes with long bushy tails that appear integrated into our little downtown community. We see them on the cameras early in the morning hours, typically, and they do some rather odd things, so the notion that they were collecting interesting items and burying them did not seem unreasonable. We also observed one fox flipping a piece of torn paper plate in the air in front of an unimpressed cat crouching nearby. Foxes will sometimes do similar jumping behavior as a method for mesmerizing their prey, but why bury a melted candle? Perhaps it smelled just enough like food that the fox thought it might come in handy during lean times later. And the child’s toy ball? Plastic odors might also resemble food. Maybe.

The New Mexico foxes, skunks, raccoons, and, I’m informed, some formerly pet coatimundi that wander in the area (but we’ve never seen), as well as the javelina, coyotes, deer, bobcats, and foxes around our Arizona forest home, are certainly influential in my Tusker Long project that tries to tackle an alien world where the worker slave animals have broken from their chains of servitude and simplicity to dominate society and come to grips with their own limits, prejudices, and historical animosities (perfectly wrong word, that).… Read the rest