Here's how it works and why it's beneficial:
1. What is Circuit Sharing?
Circuit sharing allows multiple EV chargers to use the same electrical circuit by dynamically adjusting the power each charger receives based on demand. Instead of dedicating one circuit per charger, which can be costly and space-inefficient, circuit sharing enables several chargers to operate on a single circuit by distributing available power among them.
2. How Circuit Sharing Works
- Power Allocation: With circuit sharing, the available electrical power is divided between chargers. When one or more EVs are charging simultaneously, the system adjusts the power flow so each charger gets an appropriate amount based on the demand.
- Load Management: Circuit-sharing systems typically come with smart load management software. This software monitors how many EVs are charging and controls the rate of power delivered to each vehicle. When fewer vehicles are charging, more power can be sent to each one for faster charging. When demand is higher, the power is distributed evenly among the chargers.
- Priority Settings: Some systems allow the building or users to set charging priorities. For example, a user who needs a faster charge can be given priority, while others with lower priority may receive slower charging rates. This is useful in residential settings where residents may have different charging needs.
3. Benefits of Circuit Sharing in Condos
- Cost Efficiency: Circuit sharing reduces the need to upgrade the building's electrical infrastructure, which can be expensive. Instead of installing new circuits for each EV charger, a shared circuit can accommodate several chargers at a lower cost.
- Maximizes Existing Infrastructure: In older buildings, electrical capacity may be limited. Circuit sharing allows for the efficient use of the existing power supply without the need for significant electrical upgrades.
- Supports More EVs: As EV adoption grows, demand for chargers will increase. Circuit sharing enables the installation of more chargers than the building’s current electrical system might otherwise support.
- Flexibility: Many circuit-sharing systems are flexible and scalable. They allow the addition of more EV chargers over time without the need for additional electrical work, future-proofing the building for increasing EV ownership.
4. Considerations for Strata Councils
- Initial Installation Costs: While circuit-sharing technology reduces long-term costs, there may be an upfront cost for installing the load management system and integrating it with the building’s electrical infrastructure. However, these costs are typically lower than extensive electrical upgrades.
- Monitoring and Maintenance: Strata councils need to ensure that the system is properly maintained and monitored to prevent outages or imbalances. Some systems come with remote monitoring, allowing for easier management and quick identification of any issues.
- User Access and Billing: Billing for shared circuits can be managed with software that tracks individual usage. Strata councils need to decide how the electricity costs will be split among users and whether access will be limited based on availability or managed via reservations.
5. Popular Circuit-Sharing Solutions
Several companies offer circuit-sharing solutions specifically designed for multi-unit residential buildings. Some popular options include:
- aetherEV: Offers real-time load management and circuit-sharing features that can dynamically distribute power across multiple chargers.
- aetherEV: Provides solutions that manage EV charging demand and can be integrated into existing condo infrastructures.
