Active Solar Tracker

Tracked panel against an identical fixed panel · Group 8, EEE3035

Tracker status

Loading the latest sample…

Last sample
–
State
–
Fault
–
Test run
–
Panel on tracker
–
Data
–
Power now
–
Angle now
–

Day

Loading…

Days run from 00:00 to 24:00 UTC, as on the device. Clock times are shown in UK time (Europe/London).

Key figures for the day

Tracked panel energy
– Wh
Fixed panel energy
– Wh
Tracker's own use
– Wh
Gross gain
– %
–
Net gain (after own use)
– %
–
Data completeness
– %
–
Tracker moves
–
minutes in which the motor ran
Mean pointing error
– °
–

Charts

Power through the day. One-minute mean power of the tracked panel, the fixed panel and the tracker's own consumption, in milliwatts.
    Chart of power through the day. Use “Show data table” below for the numbers.
    Show data table
    Energy collected so far. Running total in watt-hours for the tracked panel, the fixed panel, and the tracked panel after subtracting the tracker's own use.
      Chart of cumulative energy. Use “Show data table” below for the numbers.
      Show data table
      Net gain as the day goes on. Running net gain in percent: energy from the tracked panel, minus the fixed panel, minus the tracker's own use, as a share of the fixed panel. Above the zero line the tracker is ahead. The first minutes after sunrise, when almost no energy has been collected, can be off the scale.
        Chart of running net gain. Use “Show data table” below for the numbers.
        Show data table
        Panel angle and sun angle. Degrees about the tracking axis: negative is east (morning), positive is west (afternoon). The closer the two lines, the better the pointing.
          Chart of panel and sun angle. Use “Show data table” below for the numbers.
          Show data table
          Status through the day. What the tracker was doing, minute by minute: one row per state (tracking, moving, holding, idle, stowed, fault) and a hatched row for minutes with no data. Read across a row to see when that state happened.
          Status timeline. Use “Show data table” below for the periods.
          Show data table
          Pointing error histogram. Number of one-minute samples in each 1° band of pointing error (sun angle minus panel angle) while tracking, moving or holding. The end bars count errors below −30° and of 30° or more.
          Histogram of pointing error. Use “Show data table” below for the numbers.
          Show data table
          Net gain per day. One bar for each UTC day in the loaded range: that day's net gain in percent (tracked panel, minus fixed panel, minus the tracker's own use, as a share of the fixed panel). Worked out on this device from the raw samples. Bars above the zero line are a gain; bars below it are a loss. Today's bar covers the day so far; a day with no fixed-panel energy has no bar.
            Chart of net gain per day. Use “Show data table” below for the numbers.
            Show data table

            Daily summary

            PeriodTracked WhFixed WhOwn use Wh Gross gain %Net gain %Pointing error °Complete %Samples MATLAB check

            Test runs

            RunTypePanel on trackerStart (UK)Length Tracked WhFixed WhOwn use Wh Gross gain %Net gain %Samples Pointing error °Complete %Moves

            Panel A against panel B

            Totals over the tracking tests above (run numbers 1 to 899), grouped by which panel was on the tracker. Calibration runs are left out. Similar net gains for A and B mean the gain comes from tracking, not from one panel being better.

            Panel on trackerRunsSamplesTracked Wh Fixed WhOwn use WhGross gain %Net gain %

            Export data (CSV)