Battery storage systems allow you to capture and store excess solar energy generated during the day, giving you access to clean, free electricity 24/7, whenever you need it, even after the sun goes down.
At Polar Energy Ltd, we design and install battery storage solutions that integrate seamlessly with new or existing solar PV systems in homes and businesses across Devon and Cornwall. Our NAPIT-registered team ensures safe, compliant installations that maximise self-consumption (from 30-40% up to 70-80%), reduce grid reliance and future-proof your energy supply.
Our electrical background matters. Unlike installers who only understand batteries, we understand your entire property’s electrical infrastructure to safely integrate the battery systems with your consumer unit, earthing and existing circuits.
Whether you’re looking to add battery storage to an existing solar system or planning a new integrated solar and battery installation, we provide expert advice, professional installation and full certification.
07510132424
Store excess solar energy instead of exporting it to the grid. Use your own clean energy during evenings and overnight, reducing reliance on expensive grid electricity. Typically, self-consumption increases from 30-40% to 70-80% with battery storage.
By using stored solar energy during peak tariff periods, you can significantly reduce your electricity costs and protect yourself against rising energy prices. Most battery systems pay for themselves within 8-12 years.
Battery storage gives you greater control over your energy supply. Combined with solar panels, you can reduce grid dependency, achieve greater energy security and even insulate yourself from future price hikes.
We configure our battery systems to provide backup power to essential circuits (fridge, freezer, lights, internet, home office) during grid outages. This will keep your appliances running when you need them most.
Smart battery management allows you to optimise when you export surplus energy to the grid. This way, you can take advantage of Smart Export Guarantee (SEG) tariff periods and maximise returns.
As energy tariffs evolve and time-of-use pricing becomes more common (like Octopus Flux), battery storage makes sure that you’re ready to take advantage of cheaper off-peak electricity rates.
Store and use clean, renewable solar energy and reduce your carbon footprint by a further 1-2 tonnes annually compared to solar-only installations. Contribute to a sustainable future.
Battery storage systems work alongside your solar PV installation to intelligently manage energy flow:
Modern battery systems include smart energy management, allowing you to:
We apply the same electrical precision from our 30-year history in every battery system installation to make sure that we comply with every safety standard from the very start.
We design integrated solar PV and battery storage systems from the ground up. This ensures optimal compatibility, performance and value. Our DC-coupled hybrid systems offer higher efficiency for new installations.
Add battery storage to your existing solar PV system. We assess compatibility with your current inverter, recommend suitable AC-coupled battery solutions and handle the complete installation and integration.
Every battery installation is customised to your energy usage, solar generation and future needs. We calculate optimal battery capacity and configuration for maximum efficiency.
Our NAPIT-registered electricians install battery systems safely and compliantly, integrating with solar inverters, consumer units and energy management systems.
We integrate battery storage with solar PV, EV charging and smart energy tariffs, creating a complete renewable energy ecosystem for your property.
All installations are fully certified and documented. We provide user training, monitoring guidance and ongoing support.
Domestic Battery Systems – Devon & Cornwall
Polar Energy Ltd installs battery storage systems for homes across Devon and Cornwall. Whether you have an existing solar system or are planning a new installation, we customise the battery solutions to your household energy needs and budget.
Commercial Battery Solutions
Commercial battery storage helps businesses reduce operating costs, manage energy demand and demonstrate environmental leadership. Polar Energy Ltd designs and installs commercial battery systems across Devon and Cornwall.
Premium Battery Systems from Leading Manufacturers
We install high-quality battery storage systems from trusted manufacturers. This makes sure that our batteries provide the best performance, safe operation and longevity.
Battery storage costs vary depending on capacity and system type. A complete storage system price also includes full installation, inverter integration (if required), DNO notification and certification. We provide free, customised and detailed estimates with no hidden costs.
Yes, battery storage can be retrofitted to most existing solar PV systems by using a hybrid inverter. If you have a standard string inverter, we install an AC-coupled battery system (check with the client if they provide this service) that works alongside your existing setup. We will check the compatibility and then recommend suitable solutions.
Modern lithium-ion batteries are designed to last 10–15 years with minimal degradation, typically retaining 70–80% capacity after 10 years. They can continue to operate even after this period but at a reduced capacity.
Savings depend on energy usage, solar generation and tariff structure. Maximising solar self-consumption with the use of battery storage will increase your savings.
Battery size depends on your energy usage and solar generation. We conduct detailed assessments to recommend optimal capacity.
Only if specifically designed with backup capability. Some battery systems offer backup power functionality. We can design systems to provide emergency power for essential circuits.
Polar Energy Ltd proudly serves Plymouth, Devon, Cornwall and surrounding areas including:
Ready to reduce your energy bills with solar panels? Need reliable electrical services or an emergency electrician? Contact Polar Energy Ltd today for expert advice and a free, no-obligation estimate.
07510132424