Looking after your solar panels

We’re here for you – whether we fitted your panels or not

Solar panels are designed to be low maintenance

Unlike a boiler, your solar panels should work efficiently without a yearly service. You shouldn’t need to pay extra costs for maintenance packages to keep them running well. In fact, you don’t usually even need to clean your solar panels – we get enough rain in the UK to do that for you. But if you’ve got any questions about keeping your solar panels in good condition (whether you’re an E.ON customer or not) our Solar Care team can help.

We’ve been fitting solar panels since 2011, so we’ve got plenty of tricks and technical tips up our sleeves. We’ve shared lots of them here, but if you can’t find what you’re looking for, get in touch.

First, here are a few ways to check if your solar panel efficiency is up to scratch.

Three questions everyone asks

1. Are my solar panels generating as much energy as they should?
2. How do I clean my solar panels?
3. Can I use solar energy at night?

Something’s gone wrong. What do I do?

Most solar panels are designed to last 20 to 25 years. Our panels come with a 25-year performance guarantee. So, if there’s a problem, it’s likely to be with your power supply or your inverter. (That's the box that converts the direct current (DC) your solar panels generate into the alternating current (AC) you can use in your home or feed into the grid.)

If your solar system’s not working, contact us and we’ll do what we can to help – whether you’re an E.ON customer or not.

But you can save a bit of time by checking a few things first...

Is your electricity connected?

Your solar system won’t work without power. If the electricity supply to your home has been cut off or if your prepayment meter is out of credit, your system will shut down and stop generating power.

Has your switch tripped?

Your system will have its own trip switch on the fuse board. It’s there to automatically cut or trip your electricity if it finds a fault, and it should be labelled so you can spot it easily. If it’s not in the “on” position, it’s tripped.

Are your isolators in the ‘on’ position?

Isolators are on/off switches that let you disconnect parts of your system in those rare moments when they need maintenance work. Make sure your isolators are all in the “on” position.

If it’s not a power problem, you might need a new inverter

Unfortunately, inverters weren’t built to last as long as your panels. If yours isn’t working as it should, here are two things to check before you replace it.

1.     Is it in a well-ventilated space? Inverters can overheat quite easily, so they shouldn’t be boxed in or kept in a spot where they’ll get too warm – like next to a hot water pipe or radiator.

2.     Is it clean? Inverters can be dust traps. If dust clogs your inverter’s fan, it’s more likely to overheat and stop working as efficiently as it should.

Insider tip: If your solar panels are in a shady position, you can also upgrade your inverter to a model that copes better in partially shaded spots.

If your inverter’s still not working or you’d like to upgrade it, get in touch and one of our engineers will get in touch.

Solar form

Get in touch

If you still have concerns, you can email the E.ON Care Solar team and they’ll be in touch.

Frequently asked questions

What happens if I want to move home?

If you are receiving Feed-In Tariff payments, you will be registered as the asset owner with your chosen FiT Administrator. When moving home, you can either have an agreement with the new owner so that you continue to be the asset owner (and receive the FiT payments) or you will need to contact your FiT Administrator to arrange a transfer of ownership.

Will my electricity meter work differently?

Your electricity meter will continue to record the electricity you use, but it may tick over at a slower rate when your panels are generating electricity, it may even stop for a short space of time if you're generating more than you're using.

What is a Rent-a-Roof Scheme?

This is when a company installs the system for free (or nominal fee) but retain ownership of the asset so that they can claim Feed in Tariff payments to recoup the cost of installation. The home owner will have signed a lease with the company running the scheme, which effectively rents the roof to them for a period of up to 25 years. Land Registry have a copy of the lease, as it is attached to the property.

What is an MCS Certificate?

MCS stands for 'Micro Generation Certification Scheme', it’s a certificate to confirm that your installation has been enrolled within the Micro Generation Certification Scheme and has been installed by an accredited MCS certified installer. The MCS is the independent Government backed scheme that certifies micro generation products such as solar photovoltaic panels

What is Smart Export Guarantee?

As an energy supplier we can offer our solar panel customers an exclusive Smart Export Guarantee (SEG) tariff that pays you for any excess energy you export back to the grid.

You can find out more on our SEG page.

What is a Feed-In-Tariff?

The Feed-in Tariff (FiT) scheme, was introduced by the Government in April 2010 and finished in March 2019. It was designed to help generate more renewable energy across the UK. Under the FiT scheme, the owner of an approved solar power system will get paid for all the electricity the solar panels produce. The is managed on behalf of OFGEM by a designated FiT Administrator.