diff --git a/js/energy-skate-park/view/GaugeNeedleNode.js b/js/energy-skate-park/view/GaugeNeedleNode.js
deleted file mode 100644
index edb5b757..00000000
--- a/js/energy-skate-park/view/GaugeNeedleNode.js
+++ /dev/null
@@ -1,89 +0,0 @@
-// Copyright 2014-2018, University of Colorado Boulder
-
-/**
- * The gauge node is a scenery node that represents a circular gauge that
- * depicts some dynamic value.  This was originally ported from the
- * speedometer node in forces-and-motion-basics.
- *
- * @author Sam Reid
- * @author John Blanco
- */
-define( function( require ) {
-  'use strict';
-
-  // modules
-  var energySkatePark = require( 'ENERGY_SKATE_PARK/energySkatePark' );
-  var inherit = require( 'PHET_CORE/inherit' );
-  var Matrix3 = require( 'DOT/Matrix3' );
-  var Node = require( 'SCENERY/nodes/Node' );
-  var Property = require( 'AXON/Property' );
-  var Rectangle = require( 'SCENERY/nodes/Rectangle' );
-  var Util = require( 'DOT/Util' );
-
-  // constants
-  var linear = Util.linear;
-
-  /**
-   * Constructor
-   * @param {Property} valueProperty Property.<number> which is portrayed
-   * @param {Object} range - contains min and max values that define the range
-   * @param {Object} [options] typical Node layout and display options
-   * @constructor
-   */
-  function GaugeNeedleNode( valueProperty, range, options ) {
-
-    options = _.extend( {
-      // Defaults
-      radius: 67,
-      backgroundFill: 'white',
-      backgroundStroke: 'rgb( 85, 85, 85 )',
-      backgroundLineWidth: 2,
-      anglePerTick: Math.PI * 2 / 4 / 8,
-
-      // 8 ticks goes to 9 o'clock (on the left side), and two more ticks appear below that mark.
-      // The ticks are duplicated for the right side, and one tick appears in the middle at the top
-      numTicks: ( 8 + 2 ) * 2 + 1,
-
-      // Determines whether the gauge will be updated when the value changes.
-      // Use this to (for example) disable updates while a gauge is not visible.
-      updateEnabledProperty: new Property( true )
-    }, options );
-    var lineWidth = 3;
-    var needle = new Rectangle( 0, -lineWidth / 2, options.radius, lineWidth, { fill: 'red' } );
-    if ( options.renderer && options.renderer === 'webgl' ) {
-      needle = needle.toCanvasNodeSynchronous();
-    }
-    Node.call( this, {
-      children: [ needle ]
-    } );
-
-    var totalAngle = (options.numTicks - 1) * options.anglePerTick;
-    var startAngle = -1 / 2 * Math.PI - totalAngle / 2;
-    var endAngle = startAngle + totalAngle;
-
-    var updateNeedle = function() {
-      if ( options.updateEnabledProperty.get() ) {
-        if ( typeof( valueProperty.get() ) === 'number' ) {
-          needle.visible = true;
-          var needleAngle = linear( range.min, range.max, startAngle, endAngle, Math.abs( valueProperty.get() ) );
-          needle.setMatrix( Matrix3.rotation2( needleAngle ) );
-        }
-        else {
-          // Hide the needle if there is no value number value to portray.
-          needle.visible = false;
-        }
-      }
-    };
-    valueProperty.link( updateNeedle );
-
-    options.updateEnabledProperty.link( function( updateEnabled ) {
-      updateNeedle();
-    } );
-
-    this.mutate( options );
-  }
-
-  energySkatePark.register( 'GaugeNeedleNode', GaugeNeedleNode );
-
-  return inherit( Node, GaugeNeedleNode );
-} );
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