February 15, 2020

Wall Upgrades for Deep Energy Retrofits

Upgrading the energy performance of walls in an existing home is the most challenging aspect of a deep energy retrofit. One of these eight options will work for just about any zero energy renovation.

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September 23, 2018

My Zero Energy Retrofit Beats my 401(k)

This analysis, using standard business investment metrics, shows that a complete zero energy home retrofit can return 15% a year with zero risk. Beat that Wall Street!

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