When looking at options for our later years, we decided we wanted an adventure in sustainability, and have fulfilled our dream with an off-grid straw bale house. Bottled gas for our cooktop (and boost to evacuated tube hot water in winter) is our only external energy input. Our utility bills have gone from over $5,000 a year in our Belconnen house to $150 a year for the gas. The initial footprint of concrete slab and other infrastructure was probably quite large, but from now on our footprint should be very low.
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