10kw-solar

Solar Energy Self Consumption

I recently moved into a house that was consuming 85 kWh a day through winter. Ouch. I’m working to reduce it but realistically dropping it below half of that might be hard. Philosophically and¬†economically irrationally I want my home to be a net zero consumer of electricity. If I can’t achieve this on a daily or weekly basis then I’ll settle for an annual basis.

Our peak loads will most certainly be in winter when solar irradiation is at it’s minimum, this is our constraint. I installed 10kW of panels and a 10kW inverter to start with. I might over panel it in future.

Thinking about all of the above, and granted storage is rapidly becoming more feasible, maximising self consumption of power from residential solar is going to play an important role in minimising the use of fossil fuel generated electricity.

This blog post is my experience of figuring out how to do this.

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Power-router

Grid Connected Solar plus Storage

Across Australia most new solar installations are subject to tariffs which pay the owners as little as 1/4 or less for their excess power that they export to the grid during the day than they are charged for using the same power through the evening hours.

Installing a battery system in your home allows you to instead store this excess electricity and use it yourself, avoiding the high tariffs.

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