State proposal offers developers path to ‘net zero’ with fossil fuels

The Baker administration has unveiled proposed energy-code updates for new buildings, including a new “net zero” option that would allow commercial and residential buildings to continue to use gas and other fossil fuels.

As it stands, most Massachusetts cities and towns — including the vast majority of communities within the Route 128 belt — have adopted what is known as the “stretch” energy code, which is meant to result in greener buildings than a “base” code still followed by…


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