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Trusted Solar Professionals in Devon

Residential Solar Systems

The Benefits of Residential Solar Panels

Callidus are one of the UK’s leading purveyors and installers of residential solar systems and are based in Newton Abbot, Exeter in Devon; we also operate in Devon, Torquay, Paignton and other areas in the South West. Having worked across Bristol and Wiltshire, down through Somerset and into Cornwall, Dorset and Hampshire, our extensive experience makes us the ones to call for off grid solar systems.

As certified Tesla installers, we can also offer the Tesla Powerwall 2 to customers interested in adding battery storage to their residential solar panels. Request a quote from us today.

With their low cost and minimal maintenance, residential solar panels are the obvious choice for homeowners. Both time and cost efficient, homeowners can benefit from the innovative simplicity of solar energy.

Callidus are MCS accredited, which means you can be sure your home will be fitted with only the best quality, so utilise the benefits of clean, green energy when you choose to install residential solar panels.

Make your residential solar panels even more efficient by adding battery storage. With suppliers such as Tesla and Victron, homeowners can reduce the need for power from the grid and benefit from cheaper energy bills.

As well as saving money, opting for residential solar panels can also make you money by signing up to a Smart Export Guarantee (SEG), where you can sell any excess energy back to the grid for profit.

With the UK’s Net Zero Strategy looking to decarbonise the UK economy to meet a net zero target by 2050, residential solar panels will become increasingly demanded. Discover the benefits of clean, renewable energy with Callidus.

With residential solar panels, you can enjoy a levelised cost of electricity potentially as low as £0.04/kWh and returns up to and in excess of 20%. Saving money on energy bills has never been easier with residential solar panels.

Solar Panels For Home

Protect Against Rising Energy Costs

The continually rising energy prices are an issue every homeowner faces. With residential solar panels, you can remain in control of your energy usage and protect yourself from exorbitant living costs. Whether near us in Newton Abbot or based further afield, we can help your home benefit from solar energy with residential solar panels.

From 2017 to 2021, average unit costs have risen by a staggering 67% and will continue to rise with each energy price cap review. Our residential solar panels have been tried and trusted across the UK, offering a vast array of benefits for your home, namely reduced bills and carbon emissions.

Best Solar Energy Prices UK

Why Choose Callidus?

While based in Newton Abbot in Devon, we are one of England and Wales’ leading purveyors and installers of commercial solar panels with MCS, CHAS, NICEIC, RECC and TrustMark certifications. We have installed solar panels nationwide, including Bristol and Wiltshire, down through Somerset and into Cornwall, Dorset and Hampshire with over eleven years of service.

For projects that require our installation services, we will work around you and your home to ensure a smooth and hassle free process with minimal disruption. Those looking to install themselves can order from our shop with worldwide shipping. All wiring and programming are done in our warehouse to allow for an easy plug and place installation.

Solar Energy Specialists

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How Residential Solar Panels Work

Battery Storage



Every homeowner expends an incredible amount of energy just to keep homes running. With appliances, computers and lighting all needing vast amounts of power, a dilemma of sustainability arises, as well as rising energy bills. By choosing residential solar panels, it’s never been easier to achieve responsible energy usage.

With the ability to oversee and control every aspect of your energy usage, you can make your home more efficient and sustainable all at once. Whether near to us in Newton Abbot in Devon or elsewhere in the UK, residential solar panels can be the perfect way to utilise the potential of your home.

Solar Panels and Battery Storage UK

How Residential Solar Panels Work

The most common configuration is a grid system with residential solar panels. Installation is extremely straightforward, connecting to the grid and using it for both supply and backup. As well as reducing your need for power from the grid, you can benefit from significantly reduced yearly bills.

Homeowners can also sign up for a Smart Export Guarantee (SEG) if excess energy is generated. The power is fed back into the grid in exchange for a SEG payment, previously known as the ‘export tariff’. If the house needs more power than the residential solar panels can currently generate, the house will automatically pull power from the grid.

Battery Storage

With several home storage battery solutions on the market, Callidus strive to provide only the best systems available. In the face of rising energy costs, many homeowners opt for battery storage as an alternative to exporting electricity and collecting the SEG payment.

As certified installers of Tesla, we can offer the Tesla Powerwall 2 to our customers. With the Tesla Powerwall 2, homeowners can effortlessly store excess electricity for later use.

The innovatively compact design paired with market leading performance will enable homeowners to enjoy the benefits of reliable, clean energy. Functioning as a fully integrated AC battery system, its rechargeable lithium-ion battery pack is the perfect energy storage solution to complement your residential solar panels.

When selecting a manufacturer, we can also recommend Victron. With over forty five years of experience in the industry, exceptional quality is inherent in every product. Their battery storage is incredibly user friendly and features a remote control function via Victron VRM. Monitor your solar system from anywhere at anytime.


Tesla Battery Storage


Even after we’ve left the site, we are still available to help with any queries you may have. Take a look at our frequently asked questions on our Help Desk page for more information on residential solar panels. If you still cannot find the answer to your query, get in touch with us, and we will assist however possible.

We can offer over the phone support or remotely log on to your system to take control and install any updates or changes as needed. If necessary, we can also offer a site visit for an additional cost. As a leading UK installer of residential solar panels, we’re here to ensure the switch to solar energy is as seamless as possible.

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Although based in Newton Abbot in Devon, we offer our installation services across England and Wales and also deliver nationwide. We have worked across areas such as Leeds and Bradford, down through Essex, Surrey, Reading, Berkshire and into the South of England. Discover the benefits of renewable energy and request a quote today.

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Happy Customers

The guys at Callidus were all fantastic. We had lots of questions before we had our solar power system installed, and all our many emails were answered very efficiently. The on site team did a really tidy job, and went through how we would use the system. We were very apprehensive about having an off grid system, and had different companies come to quote for the job. We went with Callidus because of the whole package that they offered, which includes their after sales help. We are very happy with the set up and it fulfils all that we asked for, very happy bunnies.

Maxine Heard

We live off grid in Cumbria and wanted to upgrade our electricity supply. We contacted Callidus and they were very happy to work with us. With excellent two way communication they designed the perfect system for us which is easily expandable if we should need it in the future. They were happy to design the system and supply us the parts for us to install ourselves. They programmed the system and were on the end of the phone to help with installation and getting the system up and running. Their after sales service is excellent. It has improved our quality of life no end.

Jack Beach

Fantastic customer service! Such incredibly helpful staff. Can’t rate them highly enough. Highly recommend this company. So helpful and really fast service. I spoke with Chris and Dave at a time when other staff where out and they went above and beyond to help.

Isobel Nancarrow

The entire team at Callidus, from the top to the bottom, are amazing. Knowledge, support, passion to place the customer and their needs at the centre of the process, throughout all phases. Clear explanations with realistic expectations; no over inflated figures to close out a deal. I am so satisfied with their approach that I have already completed an expansion of my system; NOT because it didn’t perform as promised, but in fact we are generating more than expected so have increased the battery storage!!

Marcus Rowe

I have just had an off grid solar system fitted by Steve and his team. It has been a completely stress free experience. Everyone was so professional, helpful and obliging, kind and friendly. I would recommend Callidus to anyone.

Tracey Hanks

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