Solar For Your Home


This offer includes the following equipment:
12 high quality solar panels with a 25 year warranty, hybrid inverter and a lithium battery fitted, plus a free super high efficiency electric heater worth £450. This is a very special offer and is only while stocks last.


This offer includes the following equipment:
12 high quality solar panels with a 25 year warranty, hybrid inverter and a lithium battery fitted, plus a free super high efficiency electric heater worth £450. This is a very special offer and is only while stock last.

SOLAR PV Fitted From £2,999

We expend energy almost constantly throughout the day in our homes. Our fridges keep running, our computers rarely take a break, lighting is used every evening and the weekly washing will not do itself. All of these things cost money, add to your bills and provide you with a dilemma of sustainability. How can you achieve responsible energy collection for your residential home?

The answer lies with our solar panels at Callidus. We have become a leading purveyor and installer of solar panels across Devon, Cornwall and Somerset for cottages, homes, apartments and more. If you are a homeowner that is searching for better ways to generate and store electricity and power, you are in the right place. Our solar panel installations are trusted by homeowners across these counties to offer a vast array of future benefits for your home, your bills and your carbon footprint.

Why choose our solar panel installations for your home?

To achieve a set of solar panels that are ideal for your property, our team will work hard to ensure that you have a solar panel system which can boast the best energy capture during sunlight hours while guaranteeing that you have a battery storage system in place to cope with the demands of your home and your energy usage.

Our professional team at Callidus make this happen by combining our years of experience in the solar panel world with our contacts to the best solar panel companies in the business. Working hard to install, maintain, replace and upgrade solar panels across Devon, Cornwall and Somerset, you can get started on improving your home’s energy efficiency today.

If you would like to get started, fill out our short contact form below.

What will solar panels and battery storage do for you?

There has been scepticism of solar panels and people do question if it really works!  Callidus has been installing solar since the beginning of the feed-in-tariff and has installed many thousands of systems.

The truth is that solar does work and offers greater opportunities to reduce your energy bills and making you money at the same time.  The below is to demonstrate how solar and battery storage can be a great way to reducing your increasing energy bills and make a profit in doing so. The below is for your information, however, Callidus when visiting your home carries out a detailed survey and asks the right questions, in order for us to build this type of analysis for you.

The graph on the left-hand side shows the typical usage profile of a UK household per month over a 12 month period i.e what we buy from the grid, electricity usage varies from day to day, week to week or month to month.

For instance in the week during the day, your usage will be different to later that night, and again typically that will be true for weekends and when you are on holiday.

According to OFGEM Below table are the typical usage profiles of a UK household in kWh

The below system has been built using PV Sol Premium 2018 which is a specialist Solar specification software designed to show returns or generation and system compliance. The hardware used was eighteen Qcell 290 Watt Solar Panels with a Solaredge inverter and optimisers, facing due South, using the weather data from Meteosyn, using Plymouth Mount Batten weather data, with no shade. The battery is a Pylontech x 3 and using a Sofar AC inverter. The consumption data has been taken from PV Sol and is classed as a typical house usage throughout a 365 day period, using 4000kWh per year at a unit rate of 16pence per kWh.

The graph below shows if you are generating or buying from the grid or storing it:

So you will see from the graph below that it has four main colour coded areas, the grey colour highlights the overall usage of the property and what you would normally pay for if you didn’t have solar. The yellow colour shows the solar generation and self-consumption i.e.  Using the solar power directly into the home when the panels are generating. The blue is what you purchase from the grid and green is what you haven’t used at the time of solar generation and has been sent to the battery to be used later to i.e.  Overnight. 

Energy Storage

Selecting the correct battery for you is vital, you need to be very careful to select the battery that suits your needs. You also need to ensure that the battery is going to last the test of time.

There are a number of home storage battery solutions on the market and Callidus endeavours to only supply the best systems available.

Quality Solar Panels Benefits

SolaX have developed a range of single-phase inverters unrivalled in the industry for their quality, reliability and efficiency. The SolaX single-phase inverters boast a wide MPPT voltage range to allow for more energy harvesting and have a maximum input voltage of 580V, with a maximum efficiency of 97.6%.

In addition, SolaX single-phase inverters are IP65 rated, have no internal fan to ensure no noise.

The SolaX Portal is an online monitoring platform enabling you to monitor your inverter around the clock. Solax inverters upload operational data to the Xcloud* via WiFi.

Xcloud collects and processes that data every 5 minutes. You can then monitor the data by simply logging into a registered account via your PC, iPhone, tablet or Android device.

Some of Callidus’ Latest Solar Installations

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Get A Quote Today

Get a quote for your residential or commercial project today. Fill out the form below and one of our friendly team will get back to you as soon as possible.