EV Charging Made Simple
An EV charger supplies power from your home or building to an electric vehicle.
The right charger depends on your electrical service, vehicle, daily driving, and how many EVs you need to charge.
Level 1 vs. Level 2 Charging
Level 1
120V outlet
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Slow charging
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Good for light daily driving
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Usually no dedicated charger installation required
Level 2
208–240V
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Faster everyday charging
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Common for homes and workplaces
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Typically installed on a dedicated circuit
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Available with smart charging and power management
For most EV owners, Level 2 is the practical everyday charging solution.
How Much Power Does an EV Charger Use?
A Level 2 charger may operate at different current levels depending on the charger, vehicle, wiring, and electrical capacity.
Common charging levels include:
16A · 24A · 32A · 40A · 48A
The charger should never be set higher than the electrical system and installation are designed to support.
Your EV Controls the Final Charging Rate
A charger can provide available power, but the vehicle determines how much power it accepts.
For example:
48A Charger → Vehicle accepts 40A → Charging at approximately 40A
A higher-capacity charger does not force the vehicle to charge faster than the vehicle allows.
Plug-In or Hardwired?
Plug-In
Connects the charger to an approved receptacle.
Good for:
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Easier replacement
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Flexible installation
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Residential applications
Hardwired
The charger is connected directly to the electrical circuit.
Good for:
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Permanent installations
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Higher-power applications
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Outdoor or commercial installations
The correct installation method depends on the charger and local electrical requirements.
What Is a Smart EV Charger?
A smart charger can connect to a network or charging platform for additional control and monitoring.
Depending on the system, smart charging may provide:
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Charging status
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Start and stop control
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Charging schedules
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Energy usage
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Charging history
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Current adjustment
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Error information
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Remote monitoring
What Is an OCPP Charger?
OCPP stands for Open Charge Point Protocol.
An OCPP-compatible charger can communicate with a compatible charging-management platform.
This can make it easier to manage chargers, monitor charging activity, apply charging controls, and support future software services.
Learn more → OCPP Charger 101
What Is Power Balancing?
Your home or building has a limited amount of electrical capacity.
Power balancing helps the charging system adjust EV charging when other electrical loads are using power.
Example
When building demand is low:
More power can be available for EV charging.
When building demand increases:
EV charging can automatically reduce.
This can help make better use of the electrical capacity already available.
Learn more → Dynamic Meter 101
One Charger or Multiple Chargers?
1 Charger
Simple charging for one EV.
2 Chargers
Useful for households or properties with two EVs.
3 Chargers
Smart power management can help distribute available charging capacity between multiple vehicles.
EVGREEN solutions are designed to support smarter charging for 1–3 chargers in residential and small-property applications.
Before Installing an EV Charger
Check:
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Electrical service size
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Main panel capacity
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Available breaker space
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Charger location
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Cable length
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Vehicle charging capability
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Plug-in or hardwired installation
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Future EV charging needs
A qualified installer should confirm the final electrical requirements.
EV Charging That Works With Your Electrical System
A good charging system is not only about installing a larger charger.
It is about matching:
Your EV + Your Charger + Your Electrical Capacity
With smart charging and power balancing, EV charging can adapt to the power available.
Charge Smarter. Charge More.