> ## Documentation Index
> Fetch the complete documentation index at: https://docs.plantpredict.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Table

> Configure module selection, mounting type, tracker settings, and table geometry for a DC Field

The Power Plant Builder (DC Field - Table) Page allows you to configure the physical layout of a DC Field including module selection, mounting type (Fixed Tilt or Tracker), and table geometry. This page shows the Table tab which contains tracker/racking parameters and module arrangement settings. The example shown uses a Tracker mounting type, which has the most comprehensive set of inputs. Fixed Tilt configurations have alternate inputs including tilt angle.

<Frame caption="Power Plant Builder (DC Field - Table) Page with Wind Stow and Stow Dwell Time">
  <img src="https://mintcdn.com/terabaseenergy/BZq7yMM4x1OhD5lk/images/power-plant-builder-dc-field-table-stow-dwell-ui.png?fit=max&auto=format&n=BZq7yMM4x1OhD5lk&q=85&s=9a80c63a9879ea86fdf4a37e8291b363" alt="DC Field Table tab showing PlantPredict wind stow, Wind Gust Threshold, Wind Stow Angle, and Stow Dwell Time in minutes" width="1024" height="775" data-path="images/power-plant-builder-dc-field-table-stow-dwell-ui.png" />
</Frame>

## Overview

The DC Field - Table Page is organized into the following sections:

1. **DC Field Header** — Shows the DC Field identifier with Edit, Clone, and Remove buttons.
2. **Tab Navigation** — Access different aspects of DC Field configuration: Table, Field, Losses, and Objects.
3. **Module Selection** — Displays the currently selected PV module with manufacturer and rated power.
4. **Mounting & Tracking** — Configure mounting type, tracking method, rotational limits, and stow behavior (including **Stow Dwell Time** when using PlantPredict wind stow).
5. **Geometry Parameters** — Define GCR, row spacing, post height, night stow angle, and irradiance optimization (rotation speed, hesitation) when those model choices apply.
6. **Table Configuration** — Specify module orientation, dimensions, string layout, and module gaps.

***

## User Inputs

<table>
  <colgroup>
    <col style={{width: "4%"}} />

    <col style={{width: "18%"}} />

    <col style={{width: "10%"}} />

    <col style={{width: "6%"}} />

    <col style={{width: "44%"}} />

    <col style={{width: "18%"}} />
  </colgroup>

  <thead>
    <tr>
      <th>#</th>
      <th>Input</th>
      <th>Type</th>
      <th>Units</th>
      <th>Description</th>
      <th>Related Documentation</th>
    </tr>
  </thead>

  <tbody>
    <tr>
      <td>**1**</td>
      <td>**Edit** (DC Field)</td>
      <td>Button</td>
      <td>—</td>
      <td>Opens a dialog to edit the DC Field name and repeater count.</td>
      <td>—</td>
    </tr>

    <tr>
      <td>**2**</td>
      <td>**Table** (Tab)</td>
      <td>Tab</td>
      <td>—</td>
      <td>Currently selected tab. Contains module selection, mounting type, tracker settings, and table geometry configuration.</td>
      <td>—</td>
    </tr>

    <tr>
      <td>**3**</td>
      <td>**Field** (Tab)</td>
      <td>Tab</td>
      <td>—</td>
      <td>Navigate to the Field tab to configure string count, layout arrangement, terrain, and field-level settings.</td>
      <td>[Field](/user-guide/ui/power-plant-builder-dc-field-field)</td>
    </tr>

    <tr>
      <td>**4**</td>
      <td>**Losses** (Tab)</td>
      <td>Tab</td>
      <td>—</td>
      <td>Navigate to the Losses tab to configure DC field losses including mismatch, wiring losses, and thermal model parameters.</td>
      <td>[Losses](/user-guide/ui/power-plant-builder-dc-field-losses)</td>
    </tr>

    <tr>
      <td>**5**</td>
      <td>**Objects** (Tab)</td>
      <td>Tab</td>
      <td>—</td>
      <td>Navigate to the Objects tab to configure near-field shading objects specific to this DC Field (legacy workflow).</td>
      <td>[Objects](/user-guide/ui/power-plant-builder-dc-field-objects)</td>
    </tr>

    <tr>
      <td>**6**</td>
      <td>**Change** (Module)</td>
      <td>Button</td>
      <td>—</td>
      <td>Opens the module selection dialog to choose a different PV module. Displays current module manufacturer, model name, and rated power (W).</td>
      <td>[Module Library](/user-guide/ui/module-library), [Module File](/user-guide/ui/module-file)</td>
    </tr>

    <tr>
      <td>**7**</td>
      <td>**Mounting Type**</td>
      <td>Toggle</td>
      <td>—</td>
      <td>Select between **Fixed Tilt** (stationary racking at a fixed angle) or **Tracker** (single-axis tracking that follows the sun). Tracker is shown in this example.</td>
      <td>[Tracking Overview](/models/tracking/overview)</td>
    </tr>

    <tr>
      <td>**8**</td>
      <td>**Tracking Method**</td>
      <td>Dropdown</td>
      <td>—</td>
      <td>Select the tracking algorithm. Options: **True Tracking**, **Backtracking**, **Time Series**. Only available when Mounting Type is Tracker.</td>
      <td>[Backtracking](/models/tracking/backtracking/standard_backtracking)</td>
    </tr>

    <tr>
      <td>**9**</td>
      <td>**Rotational Limits (Degrees)**</td>
      <td>Text Fields</td>
      <td>degrees</td>
      <td>Minimum and maximum rotation angles for the tracker. Typical values are ±60°. The tracker will not rotate beyond these limits.</td>
      <td>[True Tracking](/models/tracking/true_tracking)</td>
    </tr>

    <tr>
      <td>**10**</td>
      <td>**Wind Stow Model**</td>
      <td>Dropdown</td>
      <td>—</td>
      <td>Select the wind stow behavior model. Options: **Disabled**, **PlantPredict**, **Array Technologies**. Controls how the tracker responds to high wind conditions.</td>
      <td>[Wind Stow](/models/tracking/wind_stow)</td>
    </tr>

    <tr>
      <td>**11**</td>
      <td>**Wind Gust Threshold**</td>
      <td>Text Field</td>
      <td>m/s / ft/s</td>
      <td>Wind speed threshold that triggers stow behavior. When wind exceeds this value, the tracker moves to the stow angle.</td>
      <td>[Wind Stow](/models/tracking/wind_stow)</td>
    </tr>

    <tr>
      <td>**12**</td>
      <td>**Wind Stow Angle**</td>
      <td>Text Field</td>
      <td>degrees</td>
      <td>The angle to which the tracker rotates during high wind conditions. Typically a high angle (e.g., 60°) to reduce wind load.</td>
      <td>[Wind Stow](/models/tracking/wind_stow)</td>
    </tr>

    <tr>
      <td>**13**</td>
      <td>**Stow Dwell Time**</td>
      <td>Text Field</td>
      <td>min</td>
      <td>Time that wind gust must remain continuously at or below the **Wind Gust Threshold** before the tracker returns to normal operation after a wind stow. Shown only when **Wind Stow Model** is **PlantPredict**. Integer ≥ 0; default **30** for new DC Fields. Null or missing values are treated as **0** (no dwell delay) for older projects. If gust exceeds the threshold again before the dwell completes, the wait restarts.</td>
      <td>[Wind Stow](/models/tracking/wind_stow)</td>
    </tr>

    <tr>
      <td>**14**</td>
      <td>**GCR**</td>
      <td>Text Field</td>
      <td>%</td>
      <td>Ground Coverage Ratio — the ratio of module area to ground area. Higher GCR means denser packing. Linked to Row Spacing.</td>
      <td>—</td>
    </tr>

    <tr>
      <td>**15**</td>
      <td>**Row Spacing**</td>
      <td>Text Field</td>
      <td>m / ft</td>
      <td>Distance between tracker rows (pitch). Automatically calculated from GCR and collector width, or can be manually entered. Use the sync icon to toggle between linked and manual modes.</td>
      <td>—</td>
    </tr>

    <tr>
      <td>**16**</td>
      <td>**Post Height**</td>
      <td>Text Field</td>
      <td>m / ft</td>
      <td>Height of the tracker post (hub height) above ground. Affects bifacial irradiance calculations and clearance.</td>
      <td>[Bifacial Irradiance](/models/poa-irradiance/rear_irradiance)</td>
    </tr>

    <tr>
      <td>**17**</td>
      <td>**Night Stow Angle**</td>
      <td>Text Field</td>
      <td>degrees</td>
      <td>The angle to which the tracker returns at night or during non-tracking periods. Availability controlled by Model Choices settings.</td>
      <td>—</td>
    </tr>

    <tr>
      <td>**18**</td>
      <td>**Irradiance Optimization**</td>
      <td>Dropdown</td>
      <td>—</td>
      <td>Select the irradiance optimization algorithm for tracker angle calculation. Options: **None**, **PlantPredict**, **Array Technologies**. Availability controlled by Model Choices settings.</td>
      <td>[Irradiance Optimization](/models/tracking/irradiance_optimization)</td>
    </tr>

    <tr>
      <td>**19**</td>
      <td>**Rotation Speed**</td>
      <td>Text Field</td>
      <td>degrees/sec</td>
      <td>The speed at which the tracker rotates. Used in irradiance optimization calculations. Availability controlled by Model Choices settings.</td>
      <td>[Irradiance Optimization](/models/tracking/irradiance_optimization)</td>
    </tr>

    <tr>
      <td>**20**</td>
      <td>**Hesitation Factor**</td>
      <td>Text Field</td>
      <td>decimal</td>
      <td>A factor (0-1) that controls tracker response to irradiance changes. Higher values mean more hesitation before moving. Availability controlled by Model Choices settings.</td>
      <td>[Irradiance Optimization](/models/tracking/irradiance_optimization)</td>
    </tr>

    <tr>
      <td>**21**</td>
      <td>**Module Orientation**</td>
      <td>Dropdown</td>
      <td>—</td>
      <td>Select **Portrait** (long edge vertical) or **Landscape** (long edge horizontal) module orientation on the racking.</td>
      <td>—</td>
    </tr>

    <tr>
      <td>**22**</td>
      <td>**Collector Band Width**</td>
      <td>Text Field</td>
      <td>m / ft</td>
      <td>The total width of the module array on the tracker (perpendicular to the axis of rotation). Calculated from module dimensions and Modules High.</td>
      <td>—</td>
    </tr>

    <tr>
      <td>**23**</td>
      <td>**Modules High**</td>
      <td>Text Field</td>
      <td>—</td>
      <td>Number of modules stacked vertically (perpendicular to tracker axis). Use the sync icon to toggle between linked and manual modes.</td>
      <td>—</td>
    </tr>

    <tr>
      <td>**24**</td>
      <td>**Strings Wide**</td>
      <td>Text Field</td>
      <td>—</td>
      <td>Number of strings arranged along the tracker length. Use the sync icon to toggle between linked and manual modes.</td>
      <td>—</td>
    </tr>

    <tr>
      <td>**25**</td>
      <td>**Modules Wide**</td>
      <td>Text Field</td>
      <td>—</td>
      <td>Total number of modules along the tracker length. Calculated from Strings Wide × modules per string. Use the sync icon to toggle between linked and manual modes.</td>
      <td>—</td>
    </tr>

    <tr>
      <td>**26**</td>
      <td>**Module Azimuth**</td>
      <td>Text Field</td>
      <td>degrees</td>
      <td>The compass direction the modules face (0° = North, 90° = East, 180° = South, 270° = West). For trackers, this is the axis orientation. Use the sync icon to toggle between linked and manual modes.</td>
      <td>[Fixed Tilt Arrays](/models/tracking/fixed_tilt_arrays)</td>
    </tr>

    <tr>
      <td>**27**</td>
      <td>**Lateral Module Gap**</td>
      <td>Text Field</td>
      <td>m / ft</td>
      <td>Horizontal gap between adjacent modules along the tracker length.</td>
      <td>—</td>
    </tr>

    <tr>
      <td>**28**</td>
      <td>**Vertical Module Gap**</td>
      <td>Text Field</td>
      <td>m / ft</td>
      <td>Vertical gap between modules when Modules High > 1.</td>
      <td>—</td>
    </tr>

    <tr>
      <td>**29**</td>
      <td>**Unlock all**</td>
      <td>Button</td>
      <td>—</td>
      <td>Unlocks all linked fields, allowing manual entry of values that would otherwise be automatically calculated.</td>
      <td>—</td>
    </tr>

    <tr>
      <td>**30**</td>
      <td>**Lock all**</td>
      <td>Button</td>
      <td>—</td>
      <td>Locks all linkable fields, enabling automatic calculation of dependent values based on other inputs.</td>
      <td>—</td>
    </tr>
  </tbody>
</table>

***

## Saving Changes

Click **Save Power Plant** in the top-right corner to save all DC Field configuration changes and return to the [Block Overview](/user-guide/ui/power-plant-builder-block). Click the **X** button to cancel and discard changes.