Launched in the UK in the summer of 2022, we are a marketplace organizing a network of hundreds of local, high quality energy installers that we have vetted thoroughly. We use our proprietary technology to analyze the potential of any home and advise precisely about the ideal project so we can give customers an offer in seconds.


Founded in Oslo, Norway in 2016, we are the leading marketplace for residential solar in Europe and have sold and completed over 11,000 solar energy projects across the continent. Our team consists of engineers, programmers and technical consultants located all over Europe. We are listed on Euronext and believe all households can benefit from solar and want to make solar more accessible for all. In our European markets we have revolutionalised solar by introducing solar leasing, which will be coming soon the the UK. Come join the solar revolution! 

Who are we?

It is natural to ask whether the UK has enough sunlight to make solar power worthwhile. The answer is surprising to many. In fact, there is more solar energy in the UK than in many places in Europe where solar panels are widespread.


How can this be? Solar panels perform better in cooler temperatures so despite the cloudy weather the UK is known for performance efficiency is high. Panel performance has also improved massively in the last ten years; therefore you need many fewer panels to achieve the same results as ten years ago. The UK receives a comparable amount of sunlight as Germany, one of the biggest solar markets in the world. 

Is there enough sun in London? It's not like Madrid.

A photovoltaic solar cell converts solar energy directly into electrical energy, using photovoltaics. These facilities allow you to save approximately 59% of your electricity bill and are usually repaid in 7-10 years, when their useful life is usually more than 25 years. But what is exactly a photovoltaic cell?

Photovoltaic cells are layers of silicon "doped" with phosphorus and boron, which, thanks to solar radiation that originates from the sunlight, creates a flow of electrical energy, through the “release” of electrons, which leads to a voltage difference (volts) between the two layers. To get usable performance, it's common to arrange them on a module (or panel) so that the voltage matches a usable DC (direct current) system. 

The energy generated in DC form is transformed into AC (alternating current) that can be used directly in electrical devices, stored in batteries or transported through the transmission network to be consumed.

How do PV Solar systems work?

The inverter and the battery will usually be installed and connected in the same room and located in a cupboard next to the fuse box or in the loft space. Please note that the room where the battery is installed needs to be suitable and to comply with any regulatory requirements and/or relevant manufacturer guidelines for ventilation, fire extinguishing, etc. Furthermore, the wall or surface where the battery is installed needs to be sufficiently dimensioned to carry the weight of the battery. Please note that structural reinforcements may be necessary in order to safely install the battery, and this may result in additional costs for the customer.

Where will the inverter and battery be installed?

After the PV solar system is installed on your roof, the last step that needs to be done before you can start consuming the electricity produced by the system is to receive a G98/G99 certificate, or an approval that allows you to connect the system to the national grid. Please note: 

obtaining G98/G99 certificates is mandatory and if not obtained your system can be permanently cut off from the grid.


The installer is responsible for filing for the certificates and Otovo provides them to you once they are issued according to the system installed:

G98 certificate - A certificate designated for systems with a potential output of up to 3.68 kWp. This certificate will be filed by Otovo once the installation is complete and is approved automatically.

G99 certificate - A certificate designated for systems with a potential output of 3.68 kWp and above. This certificate is filed by Otovo before the installation takes place and will takes at least 35-45 working days to be approved or declined.

What are G98 and G99 certificates and why does it take so long to receive them?

At the moment, we don’t offer bird proofing or iboost features as part of our solar systems. However, once an installer is assigned to execute your project, we will have the installer contact you directly to provide you with a quote for including these features in the system. Please note if your solar system includes a battery you won’t need an iboost as any excess energy produced from the system will be stored in the battery.

Do you offer bird proofing and or iboost features?

Our installers work with you to find an installation time that works around your schedule with the least possible disturbance. A few days before your installation date scaffolding will be erected. On installation day, a team of 2-3 technicians will come to your home, where they will typically spend one or two days fixing the panels to the roof. Length of installation depends on how big the roof is, what kind of security is needed for us to work safely, and what kind of roofing you have. The electrician then connects the system to the fuse box and puts the system into operation. 

What is the installation process?

Solar panels are generally low maintenance. However it is important that you take good care of your photovoltaic system to achieve optimal performance. A punctual cleaning with water and a brush once a year is enough to keep the panels working and in the best working conditions. If you discover any errors or irregularities, it is important that you notify us immediately. While we maintain the technical operation, you will be responsible for a few things that affect how much power you will get out of your system. For example, trees can grow a lot during the life of the system. If the tree growth begins to shade the roof, production will naturally be lower. Therefore, please cut and maintain the plants and trees surrounding the solar panels to get the most production and to avoid the risk of damage from twigs and branches. Finally, if snow accumulates on your roof, carefully and safely use a broom or a brush to sweep the snow off the panels. Do not use metal equipment, such as scrapers or shovels and always be cautious when working at great heights.

Maintenance and cleaning of solar panels

Save up to 90% on your electricity bill with 

Join 20,000+ happy customers who took control of their energy spending. Enter your post code for a free quote.

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Slash your electricity costs by up to 90% and help the environment 

How do we calculate this savings? This 94% savings figure is calculated by comparing what the average household would pay per year for electricity on the Energy Price Cap (£1067) from 01 July 23 - to what they would pay with a 4kWp solar system with battery. Assuming a household uses 30% of their generation (£360) and exports 70% on a £0.055 rate through the Smart Export Guarantee (£154) yearly savings could equal £514, an up to 48% savings. Adding a battery can increase self consumption up to 80% meaning a household could save £960 + £44 (SEG export) = £1004, up to 90% of their annual electricity bill.

Changing household electricity consumption patterns such as setting up timers for appliances like dishwashers/washing machines could increase self consumption rates more, further increasing savings with or without a battery.

Otovo is making household solar energy doable 

We make buying and installing solar systems in the UK easy and affordable, helping drive the change to renewable energy.

We run a network of reliable local installers, all of them certified by the organisations that oversee consumer protection in our industry. In addition we audit installers to ensure consistency of quality and adherence to expectations.

With our technology, we assess the potential of your home and guide you towards your ideal solar energy and storage solution.

Join 20,000+ happy customers across Europe


In 2016, Otovo became a market leader in residential solar energy systems in Norway. Since then, we have sold and installed over 20,000 systems in 13 European countries.


The UK is next! We can't wait to help people like you get affordable, environmentally friendly electricity.


Otovo is now listed on the Oslo Stock Exchange!

The advantages of installing a solar energy system:

Reduce energy costs - with solar panels you can generate your own energy independently.

Guard against soaring prices – the more energy-independent you are, the less you’re at the mercy of the market. 

Protects the environment - solar panels produce electricity without polluting.


Why choose Otovo to make all this happen?


. We compare quotes from our partners in your area and select the installer who quoted the most competitive price. 

Save up to 90% on your electricity bill with solar energy

Otovo in the media

Slash your electricity costs by up to 90% and help the environment

Why Otovo?

Otovo is making household solar energy doable

Join 20,000+ happy customers across Europe

Otovo is now listed on the Oslo Stock Exchange!

The advantages of installing a solar energy system:

Why choose Otovo to make all this happen?

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