Enter your project details to begin your EV charging site assessment.
Define Site Boundary
Click the map to place boundary points. Click the first point again to close the boundary.
Site name
Utility provider
No boundary drawn yet
Select Electric Vehicle Charger Type
Select a generic charger for planning, or create a custom configuration from GSA's EV Charger blanket purchase agreement data.
Select Charger Type:
OR
Placed chargers
None placed yet
Manage Transformers
Identify whether you need new transformers to support your EV chargers.
208V
208V Transformer
Would you like to include the cost of a 208V-secondary transformer to support your AC Level 1 or Level 2 charging stations?
We still need to locate your existing transformer to estimate trenching costs. Please place it on the map.
Add a new transformer or upgrade an existing one?
Max Charger Amperage— A
Total Amperage (sum of all chargers)— A
Total Number of Ports—
Power Factor0.95
Loading Limit85 %
What is the rating (in kVA) of the existing transformer?0 kVA
What is the total peak load (in kVA) drawn from the existing transformer?0 kVA
480V
480V Transformer
Would you like to include the cost of a 480V-secondary transformer to support your DC charging stations?
We still need to locate your existing transformer to estimate trenching costs. Please place it on the map.
Add a new transformer or upgrade an existing one?
Total DC Ports—
Power Factor0.95
Loading Limit85 %
What is the rating (in kVA) of the existing transformer?0 kVA
What is the total peak load (in kVA) drawn from the existing transformer?0 kVA
Placed transformers
None placed yet
Manage Service Panel
Click within the site to place the service panel. Only 1 allowed.
A service panel is not required for projects with only Direct Current Fast Charging EV Chargers. If you have questions, contact us at EVI-LOCATE@nlr.gov.
These questions will help you identify whether you need a new service panel to support EV Chargers or have sufficient physical and electrical capacity to use your existing service panel. You can default to a new service panel if you would like. If you do not know the answers to the questions below, you can default to a new service panel or contact us at EVI-LOCATE@nlr.gov
Would you like to include the cost of a 208V service panel to support your AC Level 1 or Level 2 charging stations?
We still need to locate your existing service panel to estimate trenching costs. Please place it on the map.
Selected EV Chargers:
EV Charger Level—
Total Number of EV Charger Ports—
Details:
Amperage—
Where will the service panel be installed?
Do you want to add a new service panel or upgrade an existing service panel?
What is the voltage rating of your service panel?
Are there any open spaces to install additional circuit breakers in the existing service panel?
How many unused Circuit Breaker spaces are available on the existing service panel to support EV charging stations? Learn more
0 spaces
What is the current rating in ampere (A) of the Main Circuit Breaker on the existing service panel? Learn more
0 ampere (A)
What is the total peak load (kW) drawn from the existing service panel? Learn more
0 kilowatt (kW)
Placed panel
None placed yet
Review Design
Lines show electrical connections between components.
480V transformer → DC chargers
480V transformer → 208V transformer
208V transformer → service panel
Service panel → L1/L2 chargers
View Site Report
Your cost estimate results are shown on the right. The map displays your full site design.
Click to add points · click first point to close
Draw the site boundary to continue
Site Report
Calculating…
Bill of Materials
Item
Quantity
Units
Cost Breakdown
Cost Summary
Disclaimer
EVI-LOCATE provides planning-level estimates only. Actual costs, equipment, and site requirements may vary; values should be verified by qualified professionals before making decisions.
Disclaimer: The EVI-LOCATE Model (“Model”) is provided by the National Laboratory of the Rockies (“NLR”), which is operated by the Alliance for Energy Innovation, LLC (“Alliance”) for the U.S. Department Of Energy (“DOE”) and may be used for any purpose whatsoever. The names DOE/NLR/ALLIANCE shall not be used in any representation, advertising, publicity or other manner whatsoever to endorse or promote any entity that adopts or uses the Model.
YOU AGREE TO INDEMNIFY DOE/NLR/ALLIANCE, AND ITS AFFILIATES, OFFICERS, AGENTS, AND EMPLOYEES AGAINST ANY CLAIM OR DEMAND, INCLUDING REASONABLE ATTORNEYS’ FEES, RELATED TO YOUR USE, RELIANCE, OR ADOPTION OF THE MODEL FOR ANY PURPOSE WHATSOEVER. THE MODEL IS PROVIDED BY DOE/NLR/ALLIANCE ‘AS IS’ AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING BUT NOT LIMITED TO THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE EXPRESSLY DISCLAIMED. IN NO EVENT SHALL DOE/NLR/ALLIANCE BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER, INCLUDING BUT NOT LIMITED TO CLAIMS ASSOCIATED WITH THE LOSS OF DATA OR PROFITS, WHICH MAY RESULT FROM ANY ACTION IN CONTRACT, NEGLIGENCE OR OTHER TORTIOUS CLAIM THAT ARISES OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THE MODEL.
Estimate Cost
Inputs for —
Project Costs (%)
EVI-LOCATE includes default numbers for project costs that can be modified by the user. Please update any of these defaults as appropriate for your project.
State and Local Sales Tax Percent
0%
Contractor Overhead Percent
15%
Contractor Profit Percent
10%
Bond Costs Percent
2.5%
Permits and Zoning Percent
2%
Contingency Cost Percent
20%
Site Report
Your full site assessment report will be generated here as a downloadable PDF.
