Per-Unit vs Shared EV Charging Cost Models for HOAs

Before your HOA board picks a charger brand or signs a vendor contract, it has to answer a more important question: who pays for what? The cost model you choose determines how installation expenses are recovered, how electricity bills are split, who covers repairs, and whether residents who do not own EVs feel they are subsidizing those who do. Get this wrong and you will hear about it at every annual meeting for the next decade.

There are two main approaches: a per-unit model, where the EV owner pays most or all of the costs tied to their charger, and a shared model, where the association treats charging like any other amenity and spreads the cost across all owners. Most HOAs end up somewhere in between. The right choice depends on your governing documents, state law, the percentage of residents likely to drive electric in the next five years, and how your community thinks about shared amenities.

In a per-unit model, the resident who wants to charge an EV pays for the equipment and installation tied to their specific parking space. The association may pay for shared infrastructure like a sub-panel or trunk line, but the EV owner covers the final run of conduit, the charger itself, and ongoing electricity through a submeter or networked charger that bills them directly. Costs to the resident typically range from $2,500 to $7,000 depending on the distance from the electrical room and whether trenching or core drilling is required.

This model is popular in communities where EV adoption is still under 15 percent of households. It avoids the political fight over non-EV owners funding chargers they will never use. It also aligns well with right-to-charge laws in states like California (Civil Code 4745), Colorado, Florida, and New York, which generally require HOAs to allow installation but permit the association to require the requesting owner to bear the cost.

The downside is fragmentation. Each install is a one-off project, so the HOA loses bulk pricing power. Twenty separate installs can cost two to three times what a single coordinated rollout of twenty chargers would cost. You also end up with a mix of charger brands and software platforms that becomes difficult to manage over time.

In a shared model, the association funds the EV charging infrastructure as a common-area improvement, just like a pool or fitness room. Capital costs are paid out of reserves or a special assessment, and ongoing electricity, maintenance, and software fees are folded into regular HOA dues. Residents who use the chargers may pay a per-kWh usage fee on top of dues, but the underlying infrastructure is owned and maintained by the association.

This model works best when the board expects high EV adoption — for example, in a state with strong EV mandates like California, where new passenger vehicle sales must be zero-emission by 2035. It also makes sense when the property is competing for buyers or renters who expect charging as a baseline amenity. Coordinated installations of 10 or more ports typically cost $4,000 to $6,000 per port all-in, which is meaningfully lower than the per-unit approach.

The political challenge is real. Owners without EVs may object to paying for an amenity they do not use. The standard response is that pools, gyms, and landscaping are also paid by every owner regardless of personal use, and that EV charging tends to increase property values across the community. Some HOAs ease the transition by funding only Level 1 outlets or a small shared bank of Level 2 chargers initially, then expanding as demand grows.

In practice, the cleanest split is rarely pure per-unit or pure shared. Most successful HOA programs blend the two. A typical hybrid looks like this: the association pays for the make-ready infrastructure — the panel upgrade, sub-panel, and conduit raceway running through the garage — using reserves or a one-time assessment. Individual owners then pay for the final whip and charger at their parking space, plus their own electricity usage through a networked charger like a ChargePoint Home Flex or Wallbox Pulsar.

This approach captures the bulk pricing advantage of a shared install while keeping the marginal cost of each charger with the person who benefits. It is also the model most utility make-ready programs are designed around. Programs like ConEd PowerReady in New York, PG&E EV Charge Network in California, and Eversource in Massachusetts cover the upstream electrical work and leave the customer-side equipment to the property owner or resident.

Start by reading your governing documents. CC&Rs and bylaws may already restrict how common area can be modified or how assessments can be levied. If a special assessment requires a supermajority vote, a shared model may be politically difficult and a per-unit model becomes the practical default. Also check your state right-to-charge law, which often dictates the minimum the association must allow.

Next, run a five-year demand forecast. Survey residents about current EV ownership and plans to buy one within three years. If the answer is under 10 percent, a per-unit model with shared make-ready is usually fine. If it is over 30 percent, you should be planning a community-wide rollout funded as an amenity. Between those numbers, a hybrid model with phased deployment is the safest path.

Finally, think about the long view. EV adoption in the United States has grown from under 2 percent of new car sales in 2018 to over 9 percent in 2024, with multifamily households increasingly driving that growth. A model that feels right today may need to be revisited in three years. Build flexibility into your governing documents now — for example, by authorizing the board to enter EV charging service agreements without a full membership vote — so you do not have to amend the CC&Rs every time the technology shifts.

The most common mistake is approving the first resident request without a written policy in place. Once you allow one installation under informal terms, you have set a precedent that becomes very hard to change. Before approving any charger, the board should adopt a written EV charging policy that spells out the cost model, approval process, insurance requirements, indemnification language, and what happens when an owner sells their unit.

A second pitfall is ignoring electrical capacity. A building with 100 units and a 1,200-amp service may only support 8 to 12 Level 2 chargers without load management or a panel upgrade. If your cost model assumes residents can each install a 40-amp charger on demand, you will hit a capacity wall and have to reverse approvals — a guaranteed lawsuit. Always pair the cost model with a capacity study from a licensed electrical engineer.