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Applying Cut & Fill for Tracker Grading
Applying Cut & Fill for Tracker Grading

How to grade your site using Cut and Fill

Kayla Treese avatar
Written by Kayla Treese
Updated over 3 weeks ago

Cut and Fill refers to the process of grading your site to enhance the overall efficiency of our project. A video of this segment is also available on PVFARM’s YouTube channel.

Analyzing Property

  • Begin by assessing the property analysis panel, where you can observe the distribution of piles. While progress has been made, there may still be piles that exceed desired heights.

Selecting Cut and Fill Method

  • In the cut and fill section, you have the option to choose between boundary or equipment-based adjustments. For finer control, opt for equipment-based selection. Choose specific equipment criteria, such as those exceeding 13 feet, to target for adjustment.

Adjusting Terrain Parameters

  • North, South, and East-West slopes tailor the grading process.

  • Min and max reveal dictates the visibility of the pile above ground level.

  • Embedment dictates how far piles can be under ground level.

  • Tolerance grading window determines the smoothness of the graded surface and how much it undulates from positive to negative.

Confirming Solar Array Limits

  • Check that your solar array limits are how you want them.

    • Make sure your Slope Change Bay to Bay and Cumulative Slope are set depending on if you want rigid or terrain following trackers. If you set them as terrain following on the first pass then run cut fill and the limits are reset to 0, your trackers will go back to being rigid.

    • Check your End-to-end Vertical Exposure, if your racking manufacturer doesn't have a limit you can leave it as "Not Limited" if they do you can set it.

Executing Cut and Fill

  • Execute the cut and fill operation after configuring all parameters. Upon completion, observe the property analysis panel to ensure pile heights meet desired criteria. The 3D visualization will reflect the improved system, showcasing a more optimized layout.

Analyzing Grading Impact

  • Utilize the terrain analysis panel to assess the extent of grading performed.

  • Compare initial and latest elevations to gauge the effectiveness of the cut and fill process.

  • Evaluate grade and tracker slope adjustments to ensure smoother transitions.

Quantifying Results

  • Navigate to the project panel to quantify the results of the cut and fill operation. Metrics such as cut fill area and volume provide insights into the project's progress. These metrics inform further adjustments and optimization strategies.

Optimization Scenarios

  • Utilize the optimization scenarios spreadsheet provided by PV farm to explore different strategies.

  • Experiment with terrain following trackers, varying fill levels, and other options to identify the most efficient and cost-effective approach for your project.

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