2015 Resolution – Reflect on Conservation

Progress on reducing my direct carbon footprint

Following on my conceptualization for the solution to reducing my direct carbon footprint (this analysis), here is the year in review:

Reduction. I think my theme for 2015 needs to be reflection on conservation, and its nuances.

In previous New Years posts I have tracked our car milage and was pleased to see our progress reducing miles driven. Alas, the reduction was lost in 2014. The lesson: bike/walking to reduce miles in town is easily overwhelmed by driving out of town, which should be obvious, it takes quite a few avoided short trips in town to equal the milage of one trip out of town.

2012 miles 2013 miles 2014 miles
Krista’s car (red) 7927 6313 7370
My car (white) 5241 2336 4472
My pickup (blue) 1059 2078 1576
Prius (silver) new 12/4/14
totals  14227  10727  13418

My friend Stephen has a longer dataset and can demonstrate real progress reducing his driving, so it is possible.

spaeth carbon wedge car

In our cars, reduced use requires constant vigilance. In contrast, the area of lawn I mow is being reduced steadily by orchards, gardens and landscaping at the Cookhouse. I haven’t used the 15-year old riding lawn mower/snowblower in 12 months. Since, I’ve proven its possible to manage what is left without the rider, it needs to go away this spring.

Another notable experiment in reduction was to put a timer on our hot water heater. Now we make hot water for morning showers and again for evening dishes. While the savings from not maintaining hot water is small, we have proven in the past 6 months that we don’t lack for hot water when we want it. This experiment needs more study. For example, can we time the water heater so we use up much of the hot water and only store tepid water (rather than having the water heater reheat the water we just used and then storing that hot water)?

Substitution. Another of the strategies to reduce my direct carbon footprint is to substitute technologies.

The Cookhouse was built with all LED lighting and I thought I was done converting the Barn, but the other day I found one more CFL — a small one in a reading lamp. The house is partly converted, the Kitchen, family room and bathrooms are done.

My efforts at substituting LED lighting for CFLs are producing limited results; my home electric bill is not going down much (if at all), because the refrigerator, freezer, dishwasher and electric dryer are such a large fraction of the use that they overwhelm the savings in the lighting.

The used Prius that Krista will drive in place of the “red” car appears to give her 40+mpg vs the previous 25+mpg in “red car,” so if we can hold the miles driven steady, it should be a decrease in fuel used.

Replacement. The oven in our gas stove died last spring and (sigh) there are no parts to repair a 10 year old stove. The process of deciding has been slow, but we are headed toward an induction stove, all electric. The decision process was explored in this column. Replacing this appliance will produce a permanent decrease in our direct use of carbon, but a small one compared to the gas water heater. I’m having the electrician get me ready to do the water heater, but can’t afford that change yet.

While the 15 year old gas lawn mower is still running, I’m considering replacing it with an electric one. Since I’m not sure how that will work in when the grass grows fast in the spring, I’ll keep the gas one around for another season.

Generation. I have some more data on the impact of the solar air heater in the Cookhouse. My previous report was from a short duration observation. Now I have a year’s worth of data which appears to show April, May & June readings with less consumption than heating degree days would predict. Since the structure is still unoccupied the only energy use is for heating. Goals for 2015 are getting hot water preheating going in the Cookhouse and in our house. This data are also encouraging me to develop solar air heating to supplement in the barn.

849 electric usage

Electric heating in the Cookhouse for 2014

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2 Responses to “2015 Resolution – Reflect on Conservation”

  1. Cold Pizza for Breakfast | One small step for man Says:

    […] Thoughts about learning outside the university « 2015 Resolution – Reflect on Conservation […]

  2. Jan 2016 Resolution thoughts | One small step for man Says:

    […] the analytic categories from last year about reducing my carbon footprint, here are things I’ve explored and directions for […]

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