Solar Panels Installed


Millions Saved


Batteries Sold


Million KWH Produced


It's time to reclaim your Energy Independence...

If your bills are getting you down, there’s only one place to go – up on the roof with solar panels for your home from Callidus.

It’s 2024 and time to rethink your household energy consumption. With increased cost of living pressures, dwindling energy resources and rising demands for more sustainable living, there is no time like the present to harness the power of solar panels for your home. With significant untapped potential across the UK, the question is, are solar panels the right solution for your home and family?

There are many unique factors influencing what the perfect solar installation looks like for you. The key to Solar success is finding a quality installer, ready and prepared to put your unique requirements first.

How much money could you save?

Although every installation is different, you could save in the region of £1,400 off your energy bills per year and get paid a further £600 for exporting energy back to the grid.

Energise Your Roof, Revolutionise Your Bills — Switch to Solar!

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What’s In It For You?

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Solar Solutions for your Home

Solar Panels

Battery Storage

Solar with Battery Storage


Warranties, Maintenance and Support

Solar Panels

Every homeowner expends an incredible amount of energy just to keep their homes running. With appliances, computers, and lighting all needing vast amounts of power, the dilemmas of sustainability, reliability, and cost have become prominent in almost every household. By choosing solar panels, it’s never been easier to take back control of your supply.

Break free from the grid and enjoy the power of generating your own clean energy.

Are Solar Panels the right solution for your home?

Do you have a lucky roof?

The orientation and structure of your roof play a significant role in the potential of solar for you. If you have a property with an east-to-west-facing orientation, a steep roof pitch, and a generally good roof condition, you have optimal conditions to get the most from solar.

Do you have access to a shade-free area?

Solar Panels need to be installed in an area with minimal to no shading throughout the day. Trees, neighbouring buildings, or other obstructions can significantly block sunlight and lower your solar production.

Do you have an electric energy consumption?

If you use electricity, then we have a solution for you. From a small 4 panel system to 6000 panels on a large commercial roof.

Invest in Solar for long-term returns.

Solar PV and Battery systems can offer a huge return on investment and, on average, return 5 times the initial cost by the age of 25. To benefit from these great savings, you need to buy the system upfront and treat it like fixing the cost of your electricity for the next 25 years, regardless of market conditions. The scale of this investment will depend on your selection of system and whether you opt for Solar as a standalone or Solar with battery storage.


Getting the most from your home Solar installation relies heavily on your choice of system. At Callidus, with extensive market experience and using the latest technologies, we work hard to find the right solution for you now and in the future.

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Battery Storage

When the weather is on your side and on the brighter days are here, solar power provides an energy source that can reliably power your home, usually with energy to spare. However, what happens on the cold, dark days where sunlight is limited? You have no choice but to lean back on the grid to ensure your house stays powered and the lights stay on.

Introducing the outstanding opportunity of battery storage solutions …

What are the unique benefits of battery storage?

Saving energy for a rainy day

When it comes to limiting wasted energy generated from your solar panels, battery storage provides the perfect solution. Instead of wasting energy and having to resort back to the grid, your batteries will store energy that can be used when weather conditions are less favourable.

Investing in battery storage is the key to achieving energy independence and making the most of every kWh of energy you generate.

Generating an additional income

With the reliability of traditional energy sources at risk. There is an increasingly lucrative opportunity to sell back excess energy to the grid. This means that not only can you be confident that you have plenty of energy to fulfil the needs of your family and home, but can also make money from the surplus energy that you don’t use.

Compatibility with Solar Panels

Whether you already have Solar Panels installed and are looking to optimise your system with a battery or are looking to invest in a solar and battery solution, the good news is that with advances in technology, compatibility is unlikely to be an issue. There are a huge range battery solutions that can be seamlessly integrated with the majority of solar products, giving you the freedom and flexibility to develop a system that fully meets your needs.

0% VAT on batteries

Since February 1st this year, the Government have supported a major initiative to remove VAT from all battery storage products with the aim of driving greater solar adoption. This initiative has removed significant financial barriers, enabling more people to fully harness the power of solar.

Getting the most from battery storage starts with the right solution. At Callidus we have developed an unrivalled industry network and have tested some of the best products on the market to make sure you achieve the best long-term outcomes from your system.

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Battery Storage

Solar with Battery Storage

Although they are standalone, both home solar and battery storage solutions are incredibly powerful. When it comes to achieving energy independence and optimising the financial and environmental gains from Solar energy, there is no greater partnership than when Solar Panels and battery storage are combined.

The enhanced power of solar installation when paired with battery storage?

Greater control over energy supply

Battery storage ensures a consistent power supply, addressing the intermittent nature of solar energy. This reliability contributes to stability and reduces the need for backup fossil-fuel-based power generation during periods of low sunlight.

Carbon footprint reduction

Combining solar panels with battery storage helps maximize the utilization of clean energy, minimising the reliance on fossil fuels.


The modular nature of solar and battery systems allows for easy scalability. Additional panels or batteries can be added as energy needs grow, providing flexibility and adaptability without significant upfront costs.

Compatibility with Solar Panels

Whether you already have Solar Panels installed and are looking to optimise your system with a battery or are looking to invest in a solar and battery solution, the good news is that with advances in technology, compatibility is unlikely to be an issue. There is a huge range of battery solutions that can be seamlessly integrated with the majority of solar products, giving you the freedom and flexibility to develop a system that fully meets your needs.

There is a huge range of factors impacting the optimal solar and battery combinations to suit your property and lifestyle. Contact the experienced Callidus team to book a bespoke consultation today.

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Solar with Batteries


Navigating the ever-expanding landscape of solar products and new emerging technologies can feel like a minefield. The lowest cost products may not necessarily translate to the most cost-effective or sustainable in the long run and so it really pays to work with an installer that has extensive product knowledge and really understands each and every factor surrounding value for you.

Many cheap products made in Asia are not produced using the best materials or manufactured within ethical surroundings. With Callidus these issues have been removed to make sure you get the very best products manufactured correctly.

With 13 years in the business, an extensive network of suppliers and a dedicated wholesale division, Callidus has extensive experience across a vast range of solar products. We have no vested interest in any particular products, but have learned over the years which combinations work best and focus on helping every customer find the right solution to fit their unique circumstances.

The best way to gain an understanding of your perfect home solar solution is to speak to the expert team at Callidus who will be able to schedule demonstrations and talk you through the pro’s and cons of different options.

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Warranties, Maintenance and Support

Perhaps as important as your choice of supplier and system is the long-term support and service that goes along with it. Routine support and maintenance of solar panels and battery storage solutions are paramount to ensuring the longevity and optimal performance of renewable energy systems.

Regular check-ups and maintenance activities play a crucial role in identifying and rectifying potential issues before they escalate, preventing unexpected breakdowns, and prolonging the lifespan of the equipment. Dust, dirt, and debris can accumulate on solar panels, reducing their efficiency, while batteries may undergo wear and tear over time. Periodic inspections and cleaning, along with firmware updates and system checks, help maintain peak efficiency and reliability.

At Callidus, we pride ourselves on providing quality post installation support. You can access our help desk and FAQs for answers to common questions at any time, or our support team is on hand to help you with your queries via phone, within your system, or the app.

If you have any concerns specifically about your system, for an additional fee, one of our specialist team will be able to visit your property to give you the peace of mind you deserve.

At Callidus, we take a proactive approach to maintenance, ensuring we uncover any issues with wiring, connections, or other components that prevent energy loss and potential safety hazards. We offer a range of maintenance packages to make it all a little easier. Contact us via the Helpdesk on our website if you would like your Callidus system covered by one of our packages.


As with the majority of quality electrical products, Solar Panels and battery storage products typically come with extensive warranty packages, giving you peace of mind that your chosen solution can stand the test of time. Although product warranties vary, you will typically find that battery providers offer warranties between 5 and 10 years, and solar panels have a longer warranty ranging between 10 and 25 years.

As a leading UK supplier of Solar Power, we make it our mission to make sure you get maximum value from your Solar installation, both in the short-term and in the long-term.

Speak To The Callidus Team


Why Choose Callidus

Callidus is one of the UK’s leading purveyors and installers of solar panels for your home, based in Newton Abbot, Devon. We are proud to have installed more than 73,000 solar panels spanning the South West and beyond, supporting our growing domestic and commercial client base.

As your local solar experts, we have worked hard to build strong connections in the industry, ensuring the best quality products, always installed by our expert and knowledgeable team of installers.

The even better news is, we can offer you the best price in the South West guaranteed. What are you waiting for?

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Terms & Conditions

Free Smart TV Promotion

TV will be Samsung or LG smart 50” subject to availability and based on minimal spend of £7,000. TV may be replaced with another model if 50” Samsung or LG TV not available at time of project completion. One TV per household installation. TV is not refundable for any cash alternative. TV will be dispatched by insured courier once final balance is paid. The installation is subject to DNO approval and TV will only be supplied upon viable order meeting spend requirement. TV will be covered under the manufacturers guarantee and not Callidus. TV may not be delivered in time for the Euro’s if there is a delay in the project of any kind.


What Our Customers Say

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...

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...

Jack Beach

Fantastic customer service! Such incredibly helpful staff. Can’t rate them highly enough. Highly recommend this company. So helpful and...

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...

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...

Tracey Hanks

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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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