PSE Solar Meter Reading 101

Every PSE customer with a solar array has
two meters. The first meter we’ll start with is the production meter. The production meter
shows how much energy has been produced by the solar array since it was installed. In
this case, the production meter is showing 30,690 kWh have been produced since the array
was installed. As you can see, the meter alternates between showing the number of kWh produced
and lighting up all of the segments on its display, which is its test mode. In addition,
along the bottom of the display, you can see two dashes which are moving slowly to the
right. This is an indication that production is currently occurring. The speed at which
these move is an indication of how much power is currently being produced.
The other meter is called the net meter. Sometimes, a solar array might be producing more power
than a house is using. In that case, the net meter will measure how much energy is flowing
out to the grid. Otherwise, the net meter measures how much energy is flowing back into
the house. When the net meter shows “002” in the upper-left
corner, it is indicating how much energy is being pulled in from the grid. In this case,
38,060 kWh. Mode “003” in the upper-left corner can be
ignored. Finally, mode “006” shows how much energy
has been pushed into the grid. In this case, 22,511 kWh.
The net meter also includes two sets of flashing arrows. The lower set should be ignored. The
upper set indicates whether power is currently flowing in or out of your house. If the left
arrow is flashing, power is flowing out. If the right arrow is flashing, then power is
being pulled into your house from the grid. The faster they flash, the more energy is
being transferred.

2 thoughts on “PSE Solar Meter Reading 101

  1. So they are using one meter to read incoming and outgoing power? Do they have to program that mode or is that meter always like that? And why did utilities demand for solar users to have TWO meters on thier homes?

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