More strata buildings are investing in EV charging infrastructure to meet resident demand and future-proof their properties. However, many stratas face a major challenge: limited electrical capacity.
To work around this limitation, many strata buildings are installing BC EV infrastructure using a 4:1 ratio. This approach allows strata buildings to expand EV charging access while minimizing major electrical upgrades and keeping installation costs more manageable.
A 4:1 EV infrastructure ratio means four EV charging stations share power from a single electrical circuit.
Instead of dedicating a full electrical circuit to every charger, available power is distributed across multiple chargers connected to the same infrastructure. This allows strata buildings to install significantly more EV chargers using existing electrical capacity.
For example, rather than installing infrastructure for only 10 dedicated chargers, a building may be able to support 40 EV charging parking spaces using a shared 4:1 design. This approach is especially common in new and existing stratas, and strata properties with limited electrical capacity.
Many older strata buildings in BC were never designed to support large-scale EV charging. Installing dedicated full-capacity circuits for every parking stall can become extremely expensive and, in some cases, impossible without major costly upgrades to the building’s electrical service.
A 4:1 EV infrastructure setup helps solve this problem by making more efficient use of available power.
Benefits of a 4:1 EV infrastructure design:
This is why many BC strata corporations, developers, and property managers are now planning EV charging infrastructure around shared charging ratios instead of one dedicated circuit per charger.
Learn more:
The Importance of Implementing Scalable EV Charging Infrastructure
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With a 4:1 EV infrastructure setup, multiple EV chargers share the same available electrical capacity. Power is distributed between chargers depending on how many vehicles are actively charging at a given time.
For example:
This allows buildings to safely support multiple EV charging stations without overloading the electrical system.
In many residential strata buildings, this setup works well because not every resident charges their EV at full power at the exact same time. Overnight charging patterns naturally help distribute charging demand across available capacity.
Related:
6 Factors to Consider When Planning Your EV Charging Infrastructure For Condos
While a 4:1 EV infrastructure setup can significantly expand charging access, proper planning is critical.
Every strata has different:
A poorly designed strata infrastructure can lead to:
This is why strata buildings should work with experienced EV charging contractors who understand strata infrastructure requirements, electrical limitations, and long-term scalability planning.
Learn more:
Guide to BC Strata EV Charging for Property Managers and Council Members
An energy management system is a smart technology platform that monitors and controls how electricity is distributed across EV chargers in a building in real time.
It relies on EV charger wi-fi, cellular, or wired networks, to communicate with chargers and continuously manage load distribution. It goes beyond a standard power management system by dynamically monitoring electrical panels or even the entire electrical system of a building. This allows it to optimize and expand the use of available electrical capacity, allowing more chargers to run simultaneously without overloading the system.
For example, if a building’s overall energy usage drops during off-peak hours, the energy management system can automatically redirect additional available capacity to EV chargers. If energy demand increases, the system can temporarily reduce charging output to prevent the electrical system from becoming overloaded.
This allows the system to safely allocate available power to EV charging in strata buildings without overloading the overall electrical infrastructure.
Learn more:
What Is The Best EV Charging Solution For Your Condo Building?
|
Feature |
Standard Power Management |
EV Charging Energy Management System |
|
Primary function |
Balances power between EV chargers on a shared circuit |
Dynamically manages EV charging based on building-wide electrical usage |
|
Monitoring scope |
Monitors available power within a dedicated EV charging circuit |
Monitors electrical panels, building consumption, and overall energy demand |
|
How it works |
Distributes available power across connected chargers |
Adjusts charging output in real time based on total building capacity |
|
Dynamic load balancing |
Yes |
Yes, with broader building-level control |
|
Maximizes existing electrical capacity |
Limited to the EV charging circuit |
Maximizes unused capacity across the entire building |
|
Best for |
Smaller shared charging setups or lower EV demand |
Strata buildings planning for higher long-term EV charging demand |
|
Example use case |
Managing a 4:1 charging circuit safely |
Expanding EV charging capacity across an entire strata building without major infrastructure upgrades |
At metroEV, we help strata corporations and property managers design scalable BC EV infrastructure that aligns with both current electrical capacity and future EV demand.
From shared 4:1 EV charging layouts to future-ready infrastructure planning, we help buildings maximize existing electrical capacity while preparing for long-term EV adoption. Whether you are planning EV charging for a new development or retrofitting an existing strata building, our team can help design a solution that aligns with your building’s electrical capacity, parking layout, and future growth plans. Contact metroEV to learn more about BC EV infrastructure and how we can help bring EV charging in your strata.
Learn more:
Understanding EV Charging Costs: A Breakdown
Guide to EV Charging Stations and How They Actually Work
What is the Difference Between an EV Ready Plan and Electrical Planning Report?
EV Charger Load: Why You Need a Load Evaluation Before Installing EV Chargers
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