Tuesday, May 26, 2015

Two Weeks After Lift-Off

Originally posted on Theory and Practice of Trying to Combine Just Anything:

After a little delay our photovoltaic generator went online – we had been waiting for the delivery of this sophisticated addition to our office decoration:

Office Decoration

People on G+ had very cool suggestions, such as a rotating alien-fighting device throwing darts. Closest to the truth were: fuse box and fire alarm.

The box containing two knobs (actually the large box does not contain a lot):

Box with switches for PV DC cable

Two switches that are connected to that big red button downstairs, positioned next to the inverter for our PV panels:

big-red-button

We have two strings of modules, oriented perpendicular to each other; so irradiation on these is different. I add an overlay to a screenshot from Google Maps:

Plan of our house with PV modules.

Solar panels subject to different irradiance are connected in different strings – serial connections of modules; otherwise output power would suffer. The inverter has two inputs for two such strings and two MPP trackers that try to…

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