What is 'Load Balancing' and Why Do You Need It

Your Home's Electrical 'Speed Limit'

Think of your home's electricity supply like a motorway. Your main fuse (typically rated at 60, 80, or 100 amps in UK homes) is the total 'speed limit' for all the traffic (electricity) that can flow at any one time.

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Every appliance you run adds another car to this motorway:

• Kettle: Uses about 13 amps.
• Oven/Hob: Can use 13-15 amps.
• Power Shower: Can use over 10 amps.
• An EV Charger: A powerful device, using up to 32 amps on its own.

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As you can see, it doesn’t take long to get close to your home’s limit, especially when you add a powerful EV charger to the mix. Without any management, you risk causing a gridlock that trips your fuse.

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What is Dynamic Load Balancing? The Simple Explanation

Dynamic Load Balancing is a smart traffic controller for your home's electricity.

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During installation, a small device called a CT clamp is clipped around the main electricity cable coming into your house. This clamp acts as a sensor, constantly monitoring the total amount of electricity your home is using in real-time. This sensor communicates wirelessly with your smart EV charger. The charger now knows exactly how close your home is to its 'speed limit' at any given moment.

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Here's how it works in practice, using our winter evening scenario:

1. 6:00 PM: You plug in your car. Not much else is running, so the charger begins charging at its maximum speed (7.4kW / 32 amps).
2. 7:00 PM: You turn on the oven (adding ~13 amps). The CT clamp instantly detects this surge in household energy use.
3. The Magic Happens: The smart charger automatically and momentarily reduces the car's charging speed (e.g., down to 20 amps) to ensure the total household consumption stays safely below the main fuse limit. You don't notice a thing.
4. 8:30 PM: The oven is turned off. The clamp detects the available capacity, and the charger seamlessly ramps the charging speed back up to maximum.

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The result? Your car still gets fully charged overnight, and your power supply remains stable and safe. No fuses are tripped.

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The Top 3 Reasons Why You Need Load Balancing

This isn't just a convenience feature; it's essential for many modern homes.

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1. It Prevents Nuisance Power Cuts: This is the most immediate benefit. It gives you the freedom to use your home appliances as you normally would, without ever having to worry about your new EV charger causing a trip.
2. It Can Save You from a Costly 'Fuse Upgrade': For homes with a smaller 60-amp main fuse, installing a powerful 32-amp charger might be impossible without an upgrade to the entire supply line from your Distribution Network Operator (DNO). This can be disruptive and cost thousands. Dynamic Load Balancing is the smart, cost-effective alternative that allows you to safely install a powerful charger on your existing supply.
3. It Maximises Charging Speed, Safely: Load balancing doesn’t just slow your charger down. It intelligently ensures your vehicle is always charging at the maximum safe speed possible at any given moment, making the most of your available power.

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A Standard Feature, Not an Expensive Extra

While some charger brands offer load balancing as an optional (and often expensive) add-on, we believe it's a fundamental feature for safety and convenience. It's the very definition of "smart."

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That's why dynamic load balancing is included as a standard, built-in feature with every waEV-charge home installation. We don't believe you should pay extra for peace of mind.

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Ready for a truly smart charger that works in perfect harmony with your home? Get your free, no-obligation quote today.

www.waevcharge.co.uk/quote