During the Predesign phase, determine the project’s parking needs and the number of spaces devoted to long-term parking. Calculate the required number of spaces by using the following formulas:
If the number of long-term spaces is less than or equal to 50:
Spaces Required = (number of long term spaces) x (0.2), rounding up
If the number of long-term spaces is greater than 50:
Spaces Required = 10 + ((number of long term spaces)-50) x (0.1), rounding up
If the parking requirements change as the project progresses, update these calculations as needed. The number of spaces contributing to meeting this requirement are provided by the following:
Spaces contributing to meeting this requirement = ((Number of ESVE Ready Spaces) + 5) x (Number of installed DC Fast Charging Points)
Note that the Number of ESVE Ready Spaces in the above formula excludes those spaces contributing to the Number of installed DC Fast Charging Points.
Ensure that team members responsible for planning parking areas are aware of this requirement and that access to future EVSE is provided for accessible parking. Ensure that electrical distribution capacity or utility interchange locations have been identified and sized appropriately for the anticipated load.
Document location of future EVSE and EVSE infrastructure in site and electrical design documents, including identifying future panel locations in mechanical spaces. Label this future panel location and reserve for future installation. Label raceway terminals in mechanical spaces to facilitate future installation. Provide electrical and site plan diagrams listing parking areas, noting long-term parking and highlighting locations of EVSE infrastructure.
Larger diameter raceways may be used to provide equivalent electrical distribution capacity to multiple spaces according to electrical code capacity calculations.