Add load without
upgrading your panel.
* The Black Box monitors your panel in real time and automatically balances load between EV chargers, heat pumps, and other high-draw appliances — so you never trip a breaker.
Skip the panel upgrade — those start at $2,399. Add what you need to your existing panel, safely and to code.
Installation included◆ESA permit included
Quote in 24 hours◆No panel upgrade needed
Installed from
$1,749all-in
Install includedWhat the Black Box does
Monitors panel load 24/7
Auto-balances between devices
Prevents breaker trips
Works with 60A–200A panels
Works with
EV chargers · Heat pumps · Hot tubs · Saunas · Pool heaters
Our Devices
Choose your Black Box.
All prices include the device and professional installation by a licensed electrician.
Other
Black Box
EVEMS240-100 Load Manager
Smart load management for 60–100A services — manages one energy-intensive device.
60–100A service supportManages 1 device up to 60ANo rewiring required
$1,749installed
Black Box
EVEMS240-200 Load Manager
Smart load management for 125–200A services — manages one energy-intensive device.
125–200A service supportManages 1 device up to 60ANo rewiring required
$1,799installed
Black Box
EVEMS240-100-DUO Load Manager
Dual-device load management for 60–100A services — manage two high-draw devices.
60–100A service supportManages 2 devicesNo rewiring required
$2,599installed
Black Box
EVEMS240-200-DUO Load Manager
Dual-device load management for 125–200A services.
125–200A service supportManages 2 devicesNo rewiring required
$2,649installed
№03 · The Comparison
Load Management — side by side.
Load managers let you add high-draw devices without upgrading your service. Match the amperage to your existing panel.
№01Black Box
Black Box EVEMS240-100 Load Manager
★$1,749installed
№02Black Box
Black Box EVEMS240-100-DUO Load Manager
$2,599installed
№03Black Box
Black Box EVEMS240-200 Load Manager
$1,799installed
№04Black Box
Black Box EVEMS240-200-DUO Load Manager
$2,649installed
Service size
60-100A
60-100A
125-200A
125-200A
Managed devices
1
2
1
2
Max device amperage
60A
60A
60A
60A
Warranty
2 years
2 years
2 years
2 years
How it works
Panel → Black Box → devices.
Your panel
Stays exactly as-is
Your existing 60–200A panel doesn't change. No rewiring, no upgrade, no construction.
The Black Box
Monitors and balances
Sits between your panel and devices. Reads load in real time and automatically shifts power so nothing trips.
Your devices
All run smoothly
EV charger, heat pump, hot tub, AC — everything gets the power it needs, when it needs it.
Why it matters
Same result as a panel upgrade, fraction of the cost.
Starts at $1,749 vs a panel upgrade
A 200A panel upgrade starts at $2,399. The Black Box does the same job without construction and without a full-day power outage. Which one is cheaper for your home depends on your panel — we tell you before you commit.
Set it and forget it
Priority-based switching manages power automatically. When two devices compete, it reduces one temporarily — then ramps back up when capacity frees.
Installed in about 2 hours
No construction, no drywall, no mess. A licensed electrician handles everything in a single visit — ESA permit included.
Manage multiple high-draw devices
EV charger, AC, hot tub, heat pump — the dual-device model handles two circuits simultaneously on the same panel.
Perfect for maxed-out panels
Your panel is full but you need more circuits. Load management frees up capacity without replacing anything.
Great for rental properties
Adding EV charging to a rental? Load management adds value without major renovations or construction.
Comparison
Load manager vs panel upgrade.
Most homeowners don’t actually need a panel upgrade. Here’s how the two options compare.
Panel Upgrade
Load Manager
Cost
Panel Upgrade$2,399–$5,599
Load Manager$1,749–$2,649
Install time
Panel UpgradeFull day
Load Manager~2 hours
Permits required
Panel UpgradeYes — ESA
Load ManagerYes — included
Power outage
Panel Upgrade4–8 hours
Load ManagerMinimal
Construction needed
Panel UpgradeYes
Load ManagerNo
The Black Box is the smarter choice for most GTA homeowners. Same result, fraction of the cost.
Get a Free QuoteIt is a smart switch that monitors how much current your panel is drawing in real time and throttles your EV charger when other heavy appliances (dryer, A/C, stove) are running. Result: you add an EV charger without exceeding your panel capacity — no upgrade needed.
Usually load management, but not always. Load managers run $1,659 to $2,509 installed; a 200A upgrade starts at $2,399. Which is cheaper depends on your panel and what else is on it. The trade-off with load management: your EV may charge slower while the dryer runs — invisible if you charge overnight. We do the math on your setup and tell you which one we would pick.
Yes — devices like Black Box EVEMS work with every Level 2 charger because they sit between the panel and the charger circuit. They are charger-brand-agnostic.
Yes. The duo variants of devices like Black Box EVEMS handle two chargers on a single 40A circuit and split current between them. You can charge both EVs simultaneously, slower; or one at full speed when the other is unplugged.
For overnight charging, yes — even at a reduced rate during peak household demand, you will wake up to a full battery on every common EV. Load management is designed for residential use patterns where the car sits in the garage for 8+ hours.
Yes — like any hardwired EV charger install, the load-management device and the charger circuit need an ESA permit. We handle the permit and inspection as part of our quoted price.
Get startedYour project starts
Your project starts
with a few questions.
If you know what you need
Pick the work and answer a few questions. A licensed electrician prices it and replies — installation and ESA permit included, no separate labour charge.
Get a Free QuoteIf you would rather talk it through
Call and speak to an electrician, not a call centre. Nothing is booked and nothing is charged until you have seen the price.
(647) 890-4747ESA certified · Licensed · Insured · Based in Richmond Hill, covering the Greater Toronto Area