Civil and Mechanical Design

This section describes civil and mechanical site design guidelines for Express Solo.

Dimensions

Weights

The following enables calculation of the Express Solo weight, depending on its configuration:

Product weights

Component	Weight
Express Solo (fully loaded with power modules)	1300 kg (2866 lb)
AC power module	93 kg (205 lb)
DC power module	68.5 kg (151 lb)

Mount Specifications

Concrete Pad Specifications

The Express Solo must be installed on a concrete pad or engineered foundation. The concrete pad may be either newly poured or an existing concrete surface, provided it meets the requirements below.

Surface requirements

The concrete surface must be smooth and level. If an existing surface does not meet this requirement, a localized leveling pad must be poured.

New concrete pad requirements

A new concrete pad may be:

• Site‑specific, designed by a licensed structural engineer, or

• Selected from the standard pad specifications provided in this section.

Conservative stability specifications for the Express Solo are listed below for the following design scenarios:

1. 170 mph wind, high seismic, Class 3 Soil

2. 170 mph wind, high seismic, Class 4 Soil

3. 170 mph wind, high seismic, Class 5 Soil

4. 140 mph wind, lower seismic, Class 3 Soil

5. 140 mph wind, lower seismic, Class 4 Soil

6. 140 mph wind, lower seismic, Class 5 Soil

All scenarios assume the following baseline requirements:

• Concrete Strength: Minimum design compressive strength of 2500 PSI.

• Anchor bolts: M20 threaded, ASTM F1554 Grade 55, hot-dip galvanized. Bolts shall be embedded to the depth specified in the table below.

• The anchor bolt pattern shall be centered within the designed stability area of the concrete pad.

Concrete Stability Specifications Single Cabinet

Design Scenario #	Pad Width	Pad Length	Pad Thickness	#N1 @ S1 O.C. Top Rebar	#N2 @ S2 O.C. Bottom Rebar	Anchor Embedment
1	1997 mm (79 in)	2214 mm (87 in)	457 mm (18 in)	#5 @ 304 mm (12 in) O.C.	#5 @ 304 mm (12 in) O.C.	305 mm (12 in)
2	1997 mm (79 in)	2214 mm (87 in)	610 mm (24 in)			305 mm (12 in)
3	1997 mm (79 in)	2214 mm (87 in)	457 mm (18 in)			305 mm (12 in)
4	1540 mm (61 in)	1757 mm (69 in)	457 mm (18 in)			203 mm (8 in)
5	1692 mm (67 in)	1909 mm (75 in)	457 mm (18 in)			203 mm (8 in)
6	1540 mm (61 in)	1757 mm (69 in)	457 mm (18 in)			203 mm (8 in)

In extreme environmental conditions, a larger pad may be required. Conversely, sites with less stringent wind, seismic, or soil conditions may allow for a smaller pad, subject to engineering approval.

Existing pad requirements

An existing concrete pad may be used if it meets one of the conservative stability specifications listed above, or if it is evaluated and approved by a structural engineer using the parameters below.

The table below consolidates all required inputs—whether provided directly here or defined elsewhere in the guide—so the structural engineer receives a complete and consistent set of values.

The distance from the center of each anchor bolt to its adjacent enclosure walls is 108 mm (4.25 in).

Standard Mount

The most common mounting method for the Express Solo is a new pad installation using a Concrete Mounting Template (CMT) and conduit stub-up wire entry.

• The Express Solo pedestal (a) mounts onto four M20 anchor bolts (c) exposed 127 mm (5 in) above the concrete pad.

• The CMT (b) is embedded into a newly poured concrete pad (d) to align anchor bolts and underground stub-up wiring conduits. (Conduits are not shown in illustration.)

Concrete Mount Template

The concrete mount template (CMT) positions the anchor bolts and wire entry as shown below.

For conduit quantity and size requirements, refer to Conduit Requirements.

Surface Mount

Express Solo may be installed on an existing concrete surface in accordance with the following guidelines:

• The concrete surface must be inspected and approved by a structural engineer, as described in Existing Pad Structural Analysis Parameters.

  Verify the anchor bolt embedment for structural strength.

• The anchor bolts must be installed in the concrete surface as follows:

  • Anchor holes are drilled into the concrete using the anchor bolt pattern given in Anchor Bolts Placement. The holes are drilled to a depth so that 127 mm (5 in) of each anchor bolt is exposed above the concrete pad.

  • Anchor bolts are epoxied into the holes. Use an epoxy with a minimum bonding strength of 11.7 MPa, compressive strength of 82.7 MPa minimum, and tensile strength of 49.3 MPa minimum. Examples include Hilti HIT-RE 500 V3 (normal cure) or Hilti HIT-HY 200-A (fast cure).

    • Epoxy is required only if embedding anchor bolts into an existing concrete pad. It is not applicable for a new concrete pour with CMT.

    • Different epoxy types have different cure times at various temperatures. Check local temperatures for the site in advance to help choose an appropriate epoxy.

• The anchor bolts must be hot dip galvanized. In coastal or other high‑corrosion environments, consult a corrosion specialist to determine an appropriate bolt material and coating system.

• Surface mounted Express Solo must utilize surface conduit entry.

Surface Conduit Entry

Express Solo can be installed on a platform for surface conduit entry. Contact ChargePoint for more information.

Drainage

Ensure any site slopes, walls, or fencing do not trap water around the installation site.

Flood Plane

Express Solo is designed for a 61 mm (2.4 in) flood plane. If the site has a flood plane greater than 61 mm (2.4 in) for a 100-year flood event, consider installing the Express Solo on a raised concrete pad.

Clearances

Clearance requirements for the Express Solo are given below. The figure shows a top-down view of the Express Solo cabinet overlaid on the CMT.

		Mandatory clearance area
		Wall, fence, or other obstruction

Clearance requirements for two Express Solos installed back-to-back are given below.

Mandatory clearance area

Additionally, follow the clearance guidelines below:

• The status LEDs must not be obstructed from view. See Exterior Parts for the location of the status LEDs.

• After site make-ready, the only method to confirm that clearance requirements have been met is to inspect the position of the anchor bolts. See Anchor Bolts Placement for the specific measurements between the anchor bolts and the cabinet walls.

• Check local and regional codes for any additional clearance requirements regarding safety, high voltage equipment, and accessibility requirements.

• For any questions about allowable layouts, contact ChargePoint.

Bollards

Bollards are not explicitly required by ChargePoint. If applicable, ChargePoint recommends these best practices and considerations when designing bollards for the site:

• Permanent bollards must not encroach upon the clearance areas described in Clearances.

• Removable bollards are allowed if service personnel have the ability to move them as needed.

Bollards and wheel stops each has advantages and disadvantages. Factors to consider include: cosmetics, usability, accessibility and vehicle types.

Wheel stops offer the following advantages:

• Clean look

• Less chance of cables getting tangled with bollards

Bollards offer the following advantages:

• Better for ADA (see Accessibility)

• Larger vehicles and sites with mixed vehicle sizes that have different overhangs (trucks vs. light duty vehicles)

• More visibility while backing up

Ventilation

Intake vents are located on the right side of the Express Solo, and exhaust vents are on the left side when facing the display door. When positioning multiple Express Solos, orient intake and exhaust to avoid recirculation.

Accessibility

Comply with regional accessibility laws, regulations, and ordinances. The Express Solo charging station must not block ramps or pathways and the height of the interactive display cannot exceed the maximum height dictated by local laws. Do not install Express Solo on a raised concrete pad for parking spaces reserved for people with limited mobility. Express Solo meets accessibility height requirements when measured from a finished floor or ground plane.

Signage

Refer to local and regional code to design the following elements for the site:

• Any required re-striping of parking spaces

• EV Electric Vehicle or Accessible EV Electric Vehicle signs

• EV Electric Vehicle or Accessible EV Electric Vehicle paint markings on and around the parking spaces

ChargePoint recommends posting signage indicating the maximum drive-through height for vehicles passing beneath the chargers.