Dramatis personæ: How to do zero Carbon emissions at a residence (Westwood, MA)


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Our external meter is now reading negative.

Peak was 2850 in April 2016. Solar panels were grid connected on 31st December 2015.
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Now, and for the last couple of months, our electric bill has been negative:
currentEversource_2016-08-09_090736

This is the trend heading to zero on the meter, including a calculation of household electricity consumption. We heat with electricity, heat hot water with electricity, and have an induction stove:
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How?

Air source heat pumps for heating and cooling:
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You can find the latest on these systems here. We have models ASU12RLF, AUU12RLF, ASU9RLF.

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Air source hot water heater (General Electric):
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And, of course, 29 SunPower PV panels installed by RevoluSun:
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So far we’re generated 6.6 megawatt-hours:
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Our inverter:
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And this is the oil heating system we orphaned to do this:
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Update: 2017-05-26

We have leased a Chevy Volt, and received a bounty from Massachusetts for doing so.

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8 Responses to Dramatis personæ: How to do zero Carbon emissions at a residence (Westwood, MA)

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