Electric car charging: do you need a special rate, or just an add-on to your plan?

More and more drivers are switching to electric cars to shrink their carbon footprint and enjoy a cleaner, more efficient way to get around. But once it's time to actually plug in at home, the questions start piling up: Do I need a special rate or higher contracted power to charge it? Can I just use my current contract?

Charging your vehicle at home is convenient and cost-effective, but it helps to understand how the supply works, what kind of installation you'll need, and how to make the most of your rate — or even tap into solar self-consumption if you already have a photovoltaic system at home.

Can you charge an electric car at home?

Yes — and if you have a garage or a private parking space, it's actually the most practical way to do it. You'll save time you'd otherwise spend driving to public charging points, and you'll have much better control over your energy costs.

Basic requirements for home charging

Before you plug in, it's worth checking that your installation meets a few technical minimums:

• Enough contracted power: most home chargers need between 3.6 kW and 7.4 kW. If your home's contracted power is lower than that, you may need to increase it.
• An installation in good condition: your fuse box and wiring need to be up to standard, with proper grounding.
• An individual meter: if you live in an apartment building, your supply needs to run through its own meter.

 Types of home charging

There are two main ways to charge your car at home:

• A standard socket (Schuko): fine for occasional, slow charging, but not really recommended as a long-term solution — household wiring isn't built to handle several hours of high demand on a regular basis.
• A dedicated charger, or wallbox: a charging point built for daily use, with built-in safety protections and control over power and consumption. It's safer and charges faster.

There are two main ways to charge your car at home:

• A standard socket (Schuko): fine for occasional, slow charging, but not really recommended as a long-term solution — household wiring isn't built to handle several hours of high demand on a regular basis.
• A dedicated charger, or wallbox: a charging point built for daily use, with built-in safety protections and control over power and consumption. It's safer and charges faster.

Installing a home charger: steps and recommendations

Setting up your own charging point isn't complicated, but it should always be handled by a certified installer.

Step by step

1. Initial assessment: the installer checks your contracted power and the distance between your fuse box and the charging point.
   
   
2. Quote and choosing your equipment: home wallboxes typically run between €600 and €1,200, depending on power output and smart features like app control or scheduled charging.
   
   
3. Installation and certification: the professional installs the unit, wires up the necessary safety protections, and issues the electrical certificate that confirms the system is safe to use.

Where to install it: private or shared garage

• Private garage: no special permits needed — just follow standard electrical safety rules.
  
  
• Shared/community garage: under Article 17.5 of Spain's Horizontal Property Law (Ley 49/1960), you can install a charging point simply by notifying the community in advance. In most cases you won't need formal authorisation, as long as the installation doesn't affect shared areas and you cover the costs yourself.

Electricity rates: is a specific EV tariff worth it?

Most people want to know whether they need to sign up for a special rate. The answer really comes down to your charging habits and your current contract.

Off-peak / time-of-use rates

If you charge overnight, a time-of-use rate could be your best bet. These split the day into bands:

• Off-peak hours (cheaper): typically between 12am and 8am.
  
  
• Peak hours (more expensive): during the day and evening.

In practice, most households can benefit from a time-of-use rate without switching plans at all. EV-specific tariffs can offer extra perks, but whether they're worth it depends on how often — and how much — you charge.

Charging with solar power: self-consumption and efficiency

More and more households are pairing electric mobility with solar self-consumption systems, using daylight hours to charge their vehicle straight from clean energy.

The benefits of combining an EV with solar panels

• Energy savings: a large share of the energy used for charging can come straight from your own panels.
• Sustainability: you cut your CO₂ emissions and support more responsible energy use.
• Energy independence: less exposure to fluctuating electricity market prices.

Self-consumption systems at home

Self-consumption installations let you power your charger directly from your solar panels during the day. And if you generate more energy than you use, the surplus is fed back into the grid and credited on your monthly bill.

Frequently asked questions about EV charging

How long does it take to charge an electric car at home?

It depends on your charger's power output and your battery size — anywhere from roughly 4–8 hours up to 15–30 hours. Home charging is generally slower than public charging points, but it's cheaper and more convenient.

Can I install the charger myself?

It's not recommended. Installation should always be carried out by an authorised professional who can guarantee safety and issue the required electrical certificate.

What happens if I increase my contracted power for charging?

You'll pay a small fixed monthly supplement, but you'll gain speed and convenience — a common trade-off for anyone charging their EV daily.

Charging an electric car at home is possible, safe, and getting more efficient all the time. With the right charger, an optimised rate, and — where possible — a solar self-consumption system, you can enjoy a sustainable energy supply built around your needs.

If you're thinking about a more efficient energy setup, you can pair your charging point with solar self-consumption. At Nordy, we'll help you make the most of your solar panels to charge your electric car and optimise your energy use.

Take the next step towards smarter energy and sign up with us to manage your home's electricity with professional guidance and ongoing support.