Will EV charging overload our building's electrical system?

No. Dynamic Load Management continuously monitors the building's total load and adjusts charging in real time, so the supply limit is never exceeded. If building demand rises, EV charging reduces automatically.

Does this mean residents' cars might not charge?

Charging may slow or pause briefly during the building's peak periods, then resume automatically. Because most charging happens overnight when building demand is lowest, residents typically notice nothing.

Do we need to upgrade the switchboard first?

In most buildings, no. Dynamic Load Management works within existing capacity, and a site assessment confirms the building's actual headroom before anything is installed.

Can we get the metering without the EV charging?

Yes. The metering and DLM solution can be installed first, to measure the building's real load profile before any EV charging decision is made.

How fast does the system react when building load changes?

Under one second. The controller polls every metering point continuously and re-allocates charging across active sessions on each cycle. Drivers see at most a lower charge rate, never a failed session.

What happens if the internet connection drops?

The EVDB keeps running locally on its commissioned safety profile and will not exceed the configured limits while offline. Connectivity is for billing and telemetry, not for safety.

Dynamic Load Management

EV Charging that respects your building’s power limits, in real time.

Apartment buildings have a finite electrical capacity. Dynamic Load Management (DLM) is the controller that lets you add EV charging without re-engineering the supply — measuring building demand at key points in the electrical network and adjusting charging continuously to stay safely within them.

EV charging that needs no new supply infrastructure.

Every building has a fixed amount of power to draw on. Lifts, lights, pumps, hot water, air conditioning, and cooktops are already using most of it, and that demand rises and falls at predictable times of day.

Dynamic Load Management (DLM) measures the building's total power use in real time and fits EV charging into whatever capacity is actually free.

Round Robin Algorithm

When the building gets busy, charging for one or more drivers may have to be paused temporarily. When demand drops, charging ramps back up. The building's supply limit is never exceeded as shown in the right-hand animation.

If a charging session has been paused, the system will share the available capacity between all plugged in vehicles reshuffling the power every 30 minutes so each car gets a fair share. We have a calculator here to show how capacity to support EV charging is available even if there is some sharing required.

That is why most buildings can add ReadySteadyPlug with no switchboard or supply upgrade.

Load-limited · round-robin active

              18kW
              → 5 of 8 charging
            
            20:00
          
Building capacity 60 kW
Building42 kW
EV18 kW

Understanding load management

Non-balanced load

Uncontrolled charging stacks onto peak demand and overshoots the building limit.
Static load management

A fixed cap can still peak over the limit if loads change over time – and wastes capacity off-peak.
Dynamic Load Management

Charging adjusts in real time to use those spare kW – and never exceeds the limit.

ReadySteadyPlug — With vs Without DLMWith DLM vs without
What changes when the controller is awake.
Without dynamic load management

        
        With ReadySteadyPlug DLM
      
Switchboard upgrade
Without DLMAlmost always required to add 32A+ chargers
With RSP DLMAvoided — system fits within existing capacity
Max-demand tariff exposure
Without DLMFrequently breached during EV + building peaks
With RSP DLMEngineered to stay within contracted demand
When the lifts start at 7am
Without DLMEV chargers keep drawing — risk of tripped feeder
With RSP DLMEV draw eases to stay within limits
Add more chargers later
Without DLMRedesign and re-engineer the building supply
With RSP DLMAdd bays incrementally within spare headroom
Capacity audit cost
Without DLMEngineering review and works for every new install
With RSP DLMConfigured at commissioning — no further audits
Resident experience
Without DLMSlow rollouts, sporadic outages, breaker trips
With RSP DLMAlways-on charging that respects building reality

Technical specs

In this real-world example, the RSP Energy Metering solution is implemented at four (4) connection points.

In this real-world example, the RSP Energy Metering and Dynamic Load Management (DLM) solution is implemented at four (4) connection points. Mains board (1) is metered, as well as House board (2) and Sub-house boards (3 & 4) as they all provide supply to non-EV loads also. The load of every EVDB is managed by the CPMS for DLM, with each charge point individually metered within the EVDB.

- Real-time metering
- High-accuracy energy measurement (Class 1 metering)
- Continuous logging to the RSP platform
- Configurable safety headroom — never targets the absolute ceiling
- Time-of-use scheduling available
- Graceful ramp-up after capacity returns
- Per-outlet RCD trips do not affect neighbouring outlets
- Centralised data uplink at the EVDB
- Site profile set at commissioning by RSP engineers
- Manager dashboard for capacity and session reporting
- OC-defined tariff schedules supported (single, ToU, multi-tariff)
- Remote firmware updates

Screenshot of an energy monitoring dashboard for ev charging showing current draw in amperes over time, with a dropdown menu for different device meters and peaks for different phases.

The same controller, three very different wins.

FOR OWNERS CORPORATIONS

No expensive upgrades

DLM is the reason a switchboard or supply upgrade is avoidable in most buildings. Charging works within the capacity you already have — so the single largest line item is gone before the AGM discussion even starts.

FOR BUILDING & SITE MANAGERS

Full visibility on load over time

The platform shows peak load and load patterns across the whole site. That same data opens the door to actively managing maximum-demand charges and inform other electrification initiatives.

FOR INSTALLERS

Easy to deploy

Metering is deployed at key points in the electrical system as the site requires, with per-EVDB limits and live per-phase visibility. Capacity is constantly being measured — not assumed.

Frequently Asked Questions

No. DLM continuously monitors the building’s total load and adjusts charging in real time so the supply limit is never exceeded. If building demand rises, EV charging reduces automatically.
Charging may pause briefly during the building’s peak periods, then resume automatically. Because most charging happens overnight when building demand is lowest, residents typically notice nothing.
In most buildings, no. DLM works within existing capacity, and continues to measure the building’s actual headroom.
Absolutely! The metering and DLM solution can be installed first to measure the building’s real load profile before any EV decision is made. Please get in contact.
The controller polls every metering point continuously and re-allocates charging across active sessions.
The EVDB keeps running locally however new sessions will not be able to commence until connectivity resumes. All charge sessions and billing data are recovered automatically.

ReadySteadyPlug — A Day in the Life of the Controller

A day in the life of the controller