Trusted Solar Experts in Devon

Commercial Solar Panels Cost

Investing in Commercial Solar Panels Costs

Callidus are based in Newton Abbot in Devon and are one of the UK’s leading purveyors and installers of commercial solar panels. We install nationwide, having worked across Bristol and Wiltshire, down through Somerset and into Cornwall, Dorset and Hampshire. Request a quote from us today or get in touch for more information.

As well as being an environmentally friendly choice for your business, commercial solar panels are a long term investment that has the potential for an outstanding return on investment.

With the current price of energy  on the rise, commercial solar panels can help offset bills for your business. Justify installation costs with the prospect of larger savings.

Utilise government schemes such as the Smart Export Guarantee (SEG) and Super-deduction, where businesses can benefit by selling excess energy, as well as reduced tax.

With a Power Purchase Agreement (PPA), the equipment and installation of your commercial solar panels can be free. Your business can also use energy at a reduced cost.

Commercial solar panels can generate free, clean electricity throughout daytime hours that can be used on site, allowing for independence from the grid and costly energy prices.

Hybrid systems can help businesses benefit from the many advantages of commercial solar panels and battery storage. Solar power can provide a superior return on investment.

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Schemes & Savings on Commercial Solar Panels

One of the main benefits of investing in commercial solar panels is the ability to profit from excess energy. If your business can produce a surplus of energy, signing up for a Smart Export Guarantee will allow you to transfer it back to a licensed energy supplier for financial profit.

Here at Callidus, we also offer a hybrid version of a grid system that can combine with battery backup. Commercial solar panels can power the property as well as charge the batteries and feed energy back to the grid. With electricity prices on the rise, battery storage can be an effective way to reduce business costs.

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Why Choose Callidus?

From the initial meeting to the final handover, your business is in good hands with Callidus. Once our expert team have undergone a site visit, we can work on providing a high level design and pricing of the project in question. Once these have been agreed upon, a full site survey can take place to confirm final designs and pricing.

Whether near us in Newton Abbot in Devon or based further afield, Callidus can help your business benefit from the many advantages of commercial solar panels. We have worked on commercial projects nationwide across Bristol and Wiltshire, down through Somerset and into Cornwall, Dorset and Hampshire. Request a quote to find out more.

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Capital Solar Project

PPA Project

How Does A PPA Work?


Capital Solar Project

You can’t make a better investment than solar if you have capital available in your business. Opting for commercial solar panels will demonstrate to your customers that your company cares about the environment and is proactively reducing your carbon footprint.

Depending on your company’s energy usage, commercial solar panels make a lot of sense regarding the return on investment, with a typical ROI of between 17% to 25% year on year. Companies with considerable energy usage can benefit from a higher return on investment.

Solar Panel Savings

PPA Project

A solar PPA is a power purchase agreement. This means that your commercial solar panels will be paid for by one of our funders, and Callidus will install them free of charge.

Besides benefitting from taking energy from the solar system at a reduced rate to what you already pay the grid, opting for a solar PPA also means that you can keep your capital for other business projects.

A PPA is a mutual agreement between you, Callidus and our funder. The agreement concerns the exact specification of what would be installed on the roof of your business and over how long. The term of the solar PPA is entirely up to you, and you can be assured that Callidus wholly maintain it throughout its entire lifetime.

How Does A PPA Work?

At the end of the agreed term, your business then becomes the owner of that asset, and it will continue to make additional savings at the same rate. Financial risk is drastically minimised by the fact that none of your business capital is at stake and that you have the option to end the PPA at any time.

Energy is generated on the roof to power inverters within your commercial solar panels, and then the solar electricity is passed via a generation meter. The solar electricity generated through this process will be cheaper than what you would pay the National Grid for.

If excess energy is not used by the business, this is then passed back onto the National Grid and deducted from the generation meter displaying the required kWhs to pay. This means you pay only for what electricity you use and makes financial sense for companies with substantial electricity bills.


If you require assistance with your commercial solar panels, we can help. Explore our frequently asked questions on our Help Desk page for more information on solar panel systems. If you are still unable to find the information you need, contact us via our help form, and we will be glad to assist you in any way we can.

Whether near to us in Newton Abbot in Devon or further afield, we offer over the phone support, or we can log on to your system remotely to take control of it. Controlling remotely will allow us to make any required updates or changes to keep your commercial solar panels working at full capacity. We can also offer a site visit for an additional cost.

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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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