Updated, 1^st October 2019

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Our external meter is now reading negative.

Peak was 2850 in April 2016. Solar panels were grid connected on 31^st December 2015.

Now, and for the last couple of months, our electric bill has been negative:

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:

How?

Air source heat pumps for heating and cooling:

You can find the latest on these systems here. We have models ASU12RLF, AUU12RLF, ASU9RLF.

Air source hot water heater (General Electric):

And, of course, 29 SunPower PV panels installed by RevoluSun:

So far we’re generated 6.6 megawatt-hours:

Our inverter:

And this is the oil heating system we orphaned to do this:

Update: 2017-05-26

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

Update, 1^st October 2019

The Chevy Volt has very recently been replaced by a Tesla Model 3. The figures above don’t reflect what the Model 3 is doing to our electricity needs. I’ll post an update once we have a half year or so of data.