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Part of Automatic EV load management: a five-box map and commissioning tests
How to budget automatic EV load management work packages
Budget automatic EV load management in 2027 with discovery, equipment, communications, configuration, tests, support, records, change control, and renewals.
What to take away
- Build the estimate from five packagesdiscovery and design, controls and communications, configuration and commissioning, documentation and handoff, and recurring service.
- Typical retrofit pricing falls between $1,800 and $5,000 per controlled port, plus $60 to $150 per port per year for software and support. Typical ranges, not quotes.
- An electrical service upgrade, when the electrical review requires one, runs $8,000 to $60,000 or more and belongs as its own line.
- Set contingency at 10 percent where site conditions are verified, and 20 percent where panel capacity or the communications path is unconfirmed.
- Price every package in the same template so competing bids line up item by item.
Work packages that belong in the budget
A single "smart charging" allowance hides the work that makes automatic control function. Split the estimate into packages and price each against the site facts you actually hold.
- Discovery and designrecords review, panel and feeder capacity check, communications survey, written basis of design.
- Controls and communicationsload controllers, current transformers, gateway, network connection, and the software tier that permits automatic actions.
- Configuration and commissioninggroup setup, per-port limits, acceptance tests, signed test record.
- Documentation and handoffas-built drawings, asset list, account credentials, resident instructions, warranty terms.
- Recurring servicesubscription, support tier, firmware updates, account administration.
Budget work package lines
- Discoveryasset inventory and capacity review
- Equipment, installation, and controls
- Commissioning and acceptance testing
- Documentation and resident materials
- Service and change support
Each package can fail on its own, which is why a lump sum is hard to audit. The federal EVSE ordering guide treats planning, procurement, installation, acceptance, documentation and support as separate items, and that ordering discipline works at property level too.
Costs move most on scope, not hardware. Settle the scope before anyone prices the work, because controller ownership, group size and the acceptance test decide three of the five packages.
Typical cost ranges by package
Typical cost ranges
| Package | Typical cost | Frequency | Who pays |
|---|---|---|---|
| Discovery and design | $3,000 to $12,000 per site | One-time | Owner or capital reserve |
| Controls and communications | $1,500 to $4,000 per port | One-time | Owner or capital reserve |
| Configuration and commissioning | $300 to $900 per port | One-time | Owner |
| Documentation and handoff | $500 to $2,500 per site | One-time | Owner |
| Software and support | $60 to $150 per port per year | Recurring | Owner, sometimes recovered through user fees |
| Service upgrade | $8,000 to $60,000 or more | One-time | Owner, only when the review requires it |
Ranges widen with trenching, structured parking, transformer work and after-hours access. Two site walks beat one, because the second walk usually finds the feeder nobody mapped.
Boards also need to know which line hits the operating budget and which hits the reserve. Who pays for charger care maps each cost to the account that funds it.
Example budgets for two property sizes
The budgets below are illustrative, built from the ranges above. They are not bids.
Example budgets
12-port building
- Discovery and design
- $4,500
- Service upgrade
- Not required
- Controls and communications
- $21,600 ($1,800 per port)
- Configuration and commissioning
- $5,400 ($450 per port)
- Documentation and handoff
- $1,200
- Contingency
- $3,300 at 10 percent
- One-time total
- About $36,000
- Recurring service
- About $1,100 per year
60-port building
- Discovery and design
- $9,000
- Service upgrade
- $45,000 allowance
- Controls and communications
- $84,000 ($1,400 per port)
- Configuration and commissioning
- $24,000 ($400 per port)
- Documentation and handoff
- $2,000
- Contingency
- $24,600 at 15 percent
- One-time total
- About $189,000
- Recurring service
- About $5,100 per year
Per-port cost falls as port count rises, because discovery, documentation and the gateway are shared. The 60-port case assumes the electrical review calls for the upgrade.
Contingency tied to a named unknown
Set contingency at 10 percent where the panel schedule, feeder capacity and communications path are confirmed in writing. Move to 20 percent for any unverified item, and name that item in the budget.
Contingency covers a specific unknown: an unmapped feeder, a transformer near its limit, a cellular dead zone in the garage, or a service size the landlord cannot confirm.
Automatic curtailment can replace part of an upgrade. Planning an automatic system covers the control logic, setpoints and testing the budget has to fund.
Any upgrade still has to satisfy NFPA 70, the National Electrical Code, and rebate programs often ask for a licensed electrician's sign-off.
One-time setup versus recurring service
First-year spend is mostly one-time. From year two, subscription, support and account administration continue, so budget them on separate lines. A board that compares a five-year service total against a one-time install will misread both numbers.
Submetering rules decide whether that service cost can return through a resident fee. The Alternative Fuels Data Center summarizes state law on billing tenants for EV charging, which is worth checking before you promise a recovery figure.
Renewal terms decide how much of that recovery survives year three. Apartment EV subscription terms lists the clauses to check, including transfer support if the property changes provider.
Common questions
Should the budget include an electrical service upgrade?
Include it as a separate allowance only when the electrical review identifies a capacity shortfall. Automatic control can reduce the size of that allowance, but it does not remove the need for the review.
What is commonly missed in a first budget?
Account administration, the software tier, commissioning evidence, documentation, and the retest after a device or group change. These rarely appear in equipment quotes.
How much contingency is reasonable?
Ten percent where the panel schedule, feeder capacity and communications path are confirmed. Twenty percent for any unverified item, named in the budget.
How do I compare competing proposals fairly?
Send one package template and require every bidder to price all five packages. Ask for exclusions, recurring fees, acceptance tests and handoff materials in writing.
