If you’ve got solar panels but still pay for evening electricity, you’re not alone. Many Cornish homes lose out on free, clean energy simply because there’s nowhere to store it once the sun sets.
Our home battery storage systems change that. Designed for life in Cornwall - whether you're charging an EV, running a heat pump, or just want lower bills - our smart battery solutions let you store and use your energy when it suits you.
Backed by trusted brands like Tesla and SolarEdge, tailored to your energy patterns and installed with pride by our expert local team, you will enjoy a quieter, more efficient, and more independent home, with 0% VAT now available.
Your solar panels work hardest during the day. But most of us need power in the mornings and evenings, when the sun’s not shining. That is where home batteries come in.
Home battery storage lets you store excess energy - whether from the sun or off-peak grid electricity - so you can use it when it suits you, not when it is generated. Whether you want to protect yourself from rising prices, power cuts, or just feel more in control, a battery puts the power back in your hands.
In Cornwall, where grid reliability can vary and many homes are in rural spots, having your own home energy storage makes sense.
Whether you want fast charging during sunny spells or prefer to trickle charge overnight at a lower rate, we’ll configure your system to work seamlessly around your needs, using smart technology to manage things like charge cycles (how often your battery charges and discharges), state of charge (how full your battery is), and charging voltage (electrical pressure applied to a battery to push energy into it during charging), in the background.
We don’t do one-size-fits-all systems. Every setup we install is designed around you - your home, your solar setup, your energy use, and your future plans.
Here is what you can expect:
We also take care of important technical elements like selecting the right charge controller, ensuring safe power output, and protecting your system with built-in overcharging protection.
We know adding a battery system to your home is a big step. That’s why we make the journey as smooth and reassuring as possible.
Let’s Talk
We’ll have a relaxed conversation about your energy setup, what’s working, what’s not, and where you’d like to be.
Smart Design
We design a system that fits you, including the right battery capacity, charger type (AC or DC), and how it’ll integrate with your solar and other tech (like your EV charger or heat pump).
Clear Quotation
No pushy sales - just transparent, honest pricing that explains exactly what you're getting and why.
Skilled Installation
Our in-house engineers fit your system carefully and respectfully - typically in a day or two, with minimal disruption
Handover & Ongoing Support
We show you how everything works, from the app to the backup features. And if you ever need help, we are right here in Cornwall.
Batteries are the heart of any energy-smart home, and like any system, they benefit from regular check-ups.
We provide comprehensive solar battery storage servicing - covering charge/discharge behaviour, firmware updates, safety checks, and system efficiency reviews. Whether you are using batteries to go partly off-grid or just want to get the best return from your solar setup, our team can make sure your storage is doing its job safely and effectively.
Click to see our servicing and maintenance options
Not always - we can also install a battery to charge from off-peak electricity. But combining with solar gives the best long-term value.
Yes, if we build in backup functionality. We’ll help you choose what to keep running - like your fridge, internet, or lights.
Depends on sunlight and size - some charge in a few hours (fast charging), others take longer (slow charging or trickle charge). We’ll design it around your usage.
Most quality lithium-ion batteries last 10–15 years, and many come with warranties that reflect that.
Very little - modern systems are low-maintenance, but we’re always here for checks, updates, or advice.
Yes - batteries now qualify for 0% VAT, which makes a big difference. We’ll also flag any other grants that might help.
Installing a battery system in your home isn’t just about saving money; it is about gaining control. It means using your own energy, on your terms. Staying comfortable through power cuts. Getting more from your solar panels. And knowing your home is a little more future-ready. At GreenR Renewables, we are here to help you do that.
Ready to take control of your energy? Book your free consultation today and discover how smarter home battery storage and charging can power a more independent, efficient, and comfortable home - right here in Cornwall.
We take full responsibility for the performance of your system - from the first design to the final fix. No outsourcing. No shortcuts. Just beautifully engineered renewables that do exactly what you need them to. Expertly engineered and installed for lasting reliability, high efficiency and technical precision - right down to the smallest detail.
Tailored solar systems for ecofriendly solutions, lower bills and energy independence
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Smart home batteries to store surplus solar power, maximise on savings and enjoy reliable back up during outages
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Reliable EV Charging to maximise off-peak charging at home, integrated seamlessly with your renewable systems
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Improving fresh air quality and removing waste - mechanical ventilation that works beautifully
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Invisible warmth beneath your feet, designed for enhanced comfort, even heat distribution and efficiency
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Expert care for reliable renewable systems and long-term optimal performance
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Certified Gas Safe and NICEIC electrical engineers, offering support and compliant renewables
Read MoreWe are proud to hold industry-recognised accreditations - not just for show, but because they mean something for you. We are part of the Cornish community and take pride in being the engineers that local homeowners recommend. From our qualifications to the products we use, everything is chosen for performance, longevity, and peace of mind.
Bodmin | Launceston | Camelford | Boscastle | Padstow | Wadebridge | Bude | Bideford