About this job
What does connecting solar panels involve?
The panels on your roof generate direct current, also known as DC. The inverter converts that into alternating current (AC, 230 V), the type of current suitable for your home and the grid. Our connection work starts at the AC side of the inverter: we connect that to a dedicated circuit in the meter cabinet. Power that you do not use at that moment goes back through the meter to the grid. That is called feeding back to the grid.
One important distinction: we handle the electrical side, not the roof work. The panels and the inverter are installed by your solar panel supplier, including the DC cabling from the roof to the inverter. We take over from the inverter: the cable to the meter cabinet, a dedicated circuit with the right protection and, where needed, surge protection. That is the electrical engineering safe final connection in accordance with NEN 1010.
Warning signs
When do you need our connection service?
Do you recognise any of these situations? Then a neat, safe connection is in order. We have a look first and give honest advice on what suits your situation.
A new set of panels
Your panels are installed or on their way, and the installation still needs to be connected safely and neatly to a dedicated circuit in the meter cabinet.
An improvised connection
Are your panels connected to an existing circuit or to a socket? That does not comply with NEN 1010. We put it right.
The inverter trips on sunny days
Often a sign of overvoltage from too much feed-in on one phase. We look at the grid voltage and your installation.
Expansion or a larger inverter
More panels or a higher inverter output? At that point one phase can become too limited and three-phase is the better choice.
Adding an EV charger, heat pump or induction hob
When more heavy loads are added, your connection or meter cabinet can reach its limits. We work out the numbers for you.
Adding a home battery
A home battery brings its own requirements for the circuit and protection. We match the connection to those requirements.
How we work
How we approach it
From the first look to a safe handover: clear, expert and without fuss.
- 1
Survey and advice
We look at your meter cabinet, your inverter and the cable route. You receive honest advice on the dedicated circuit, the right type of RCD protection and single or three-phase.
- 2
Fixed price upfront
You receive a clear quote with a fixed price. You know exactly what you are getting, no surprises afterwards.
- 3
Safe connection
We run the cable from the inverter to the meter cabinet, create a dedicated circuit with the right circuit breaker and RCD protection, and install surge protection where needed.
- 4
Testing and handover
We test the installation throughout, check the grid voltage and test the protection. Then we hand over neatly, with a 2-year work guarantee.
Good to know
The technical side, in plain language
A few things that often raise questions when connecting solar panels. We explain them calmly.
The connection route: from roof to meter cabinet
The route is always the same: the panels on the roof generate DC, which travels via the solar cable and MC4 connectors to the inverter. The inverter converts DC to AC. The roof section, the panels, the strings in series or parallel and the DC cabling, is handled by your solar panel supplier.
Our part starts at the AC side of the inverter. From there a cable, usually YMVK, runs to the meter cabinet. We choose the cross-section based on the power and the length of the route. In the meter cabinet the installation goes onto a dedicated circuit with the right protection. That way the whole chain from roof to meter cabinet is safe and finished to standard.
A dedicated circuit and the right RCD protection
NEN 1010 (section 712) requires that a grid-connected PV installation always goes onto its own dedicated circuit, regardless of the output. That is precisely why your solar panels do not belong on a socket. A plug-in set up to 600 Wp is the only exception, but a real roof installation belongs on a dedicated circuit.
For the RCD protection we look at your inverter. A modern, transformerless inverter can produce a smooth DC leakage current that can blind a standard type-A RCD. NEN 1010 then requires in principle a type-B RCD, unless the manufacturer declares that the inverter itself monitors DC leakage current to a maximum of 6 mA (the 6 mA declaration). In that case type A is sufficient. In homes 30 mA is standard for personal protection. We choose the right type based on your inverter, so it is safe and compliant.
Single-phase or three-phase for larger installations
With a single-phase connection all feed-in comes in on one phase. With larger installations the voltage on that phase can rise towards the upper limit, approximately 253 V. The inverter then switches itself off automatically in accordance with its certification. The frustrating thing is that this happens precisely on sunny days, exactly when you expect the most output.
A practical rule of thumb: up to approximately 3.7 to 5 kW inverter output, single-phase is usually sufficient. Above that we advise a three-phase inverter, so the output is spread neatly across three phases and you avoid shutdowns from overvoltage. The exact threshold and the requirements for phase imbalance differ by grid operator. Not sure? We work it out for you at the survey. Moving to three-phase goes via the meter box upgrade service.
Which connection suits which installation?
For orientation: an indication of when single-phase is sufficient and when three-phase is advisable. The exact threshold depends on your inverter and your grid operator.
| Inverter output | Connection | Note |
|---|---|---|
| up to approx. 3.7 kW | Single-phase usually sufficient | Low risk of grid overvoltage |
| approx. 3.7 to 5 kW | Single-phase, with care | Monitor the voltage on your phase |
| from approx. 5 kW | Three-phase advisable | Output spread across three phases |
| large installation + battery | Three-phase | Prevents shutdowns and phase imbalance |
Practical guide values. We determine what suits you based on your inverter and the requirements of your grid operator.
Price
What does connecting solar panels cost?
The price depends on your situation: the distance between the inverter and the meter cabinet, how accessible the cable route is, the type of RCD protection, whether surge protection is needed and whether a switch to three-phase is involved. That is why we have a look first and then give you a fixed price upfront. Below is an indication.
Common extras:
- Surge protection on the AC or DC side, where the risk assessment calls for it
- An AC disconnection device so the inverter can be safely de-energised
- Type-B RCD protection if the inverter has no 6 mA declaration
- Switch to three-phase, via the grid operator
Price guide
Fixed price upfront| Dedicated circuit plus cabling, inverter to meter cabinet | € 250 to € 600 |
| Additional cost for type-B RCD protection (without 6 mA declaration) | on request |
| Convert meter cabinet to three-phase | € 600 to € 900 |
| Three-phase connection upgrade (3x25A, grid operator, one-off) | € 260 to € 370 |
| Grid voltage and installation check | on request |
Indicative prices incl. VAT. You will always receive a tailored quote.
Related services
Often done together
Your panel connection is linked to your inverter, your meter cabinet and your storage. These services often go with it.
Replace the inverter
Replacing an old or faulty inverter? We connect the new one safely to your dedicated circuit.
More infoHome battery
Now that net metering is ending, using your own power is becoming more attractive. We connect your home battery safely and neatly.
More infoUpgrade to three-phase
With a larger installation, three-phase prevents shutdowns from overvoltage. We manage the upgrade from start to finish.
More infoHome EV charger installation
Charging your car on your own solar power? A smart charger charges with priority from your surplus.
More infoWhy Brabant Elektra
Certified, insured and guaranteed
All our engineers are qualified and work to the NEN 1010 standard. We give a 2-year guarantee on all our work. Reliable work you can count on.
Frequently asked questions
Good to know
Service area
Solar panel connection in Noord-Brabant
Brabant is in the middle of the energy transition: from the new-build areas around Eindhoven and Den Bosch to the farms in the countryside, rooftops are covered in panels. We know the region and work together with grid operator Enexis. If an upgrade or a switch from single to three-phase is needed, we account for the waiting times that can sometimes go with that.
In some parts of Brabant the grid is under strain, known as grid congestion. Grid operators can then impose longer waiting times or conditions, and modern inverters sometimes apply feed-in limitations. We mention that honestly and refer you to the grid operator for the current situation. Registering your panels is and remains mandatory via energieleveren.nl, also after 2027. That registration is in your name as the owner; we are happy to point that out.
Service area
Across Noord-Brabant
From major cities to smaller towns, active in:
Ready to have this job done professionally?
Request a free quote or call an electrician near you directly. You will always get a fixed price upfront.
Request a free quote
Response within 24 hours · no obligation
Step 1 of 3
Emergency? Call now
For emergencies, calling is the quickest way to get help. A technician is ready for you.
Call 085 - 060 12 34Thank you, request received!
We will call you back within 24 hours.
