Supply, Installation and Maintenance
Battery Storage Installation in Hampshire & Dorset
- MCS certified
- RECC member
- 22+ years' experience
- Free, no-obligation quotes
Battery Storage
Battery storage systems allow you to store excess electricity generated by your solar panels for use when you need it most — such as during the evening, at night, or during peak energy tariff periods. By storing renewable energy instead of exporting it to the grid, battery storage helps maximise your energy independence, reduce electricity bills, and increase the overall efficiency of your solar PV system. Solwat supplies and installs advanced battery storage solutions for homes and businesses looking to take full control of their energy usage.
Benefits of Battery Storage
Maximise Solar Energy Use
Store unused solar electricity generated during the day and use it later, reducing reliance on grid power.
Lower Energy Bills
Using stored energy during peak times can significantly cut electricity costs.
Energy Independence
Reduce dependence on energy suppliers and protect against rising electricity prices.
Backup Power Capability
Some battery systems can provide emergency power during outages, keeping essential appliances running.
Reduce Carbon Footprint
Using stored renewable electricity lowers your environmental impact and supports low-carbon living.
Our Services
Battery Storage Solutions
Solwat installs high-performance battery storage systems designed to integrate seamlessly with solar PV installations. Our solutions are suitable for residential properties, commercial buildings, and larger energy systems. Whether you are installing solar panels for the first time or upgrading an existing system, we design battery storage tailored to your energy consumption, property type, and future requirements. Our systems prioritise safety, efficiency, and long-term reliability.
Investment
Battery Storage Costs, Savings & Payback
The cost of battery storage depends on capacity, system type, and installation requirements, but prices have become increasingly competitive as technology advances. By storing and using your own electricity, you can reduce energy bills and improve the return on investment of your solar PV system. Battery storage also allows you to take advantage of off-peak tariffs by charging when electricity is cheaper and using it when prices are higher.
What Size Battery Should I Get?
Electricity is measured in Kilowatt hours (kWh) and your bill should give you a good idea of how much electricity you use per day. How much electricity your household consumes over an average 24-hour period depends on its size and the number of people living there. Generally, an average household consumes around 12kWh per day, but this might be higher or lower in mid-summer or mid-winter, depending on your local climate.
Another factor to consider is how much electricity you use in the peak evening period (4pm to 9pm), which is often when the cost of electricity is at its highest. Over the years, we have found the most economical battery size for an average home is typically 6kWh to 10kWh. However, for modern all-electric homes and those with home electrical vehicle chargers, the optimum battery size for maximum self-consumption is increasing. Every household is different and there is no one-size-fits-all solution.
Get a Battery Storage Quote
Take control of your energy with battery storage from Solwat. Contact our team today for a free consultation and personalised quote. We will assess your property, explain your options, and design a system that maximises savings, efficiency, and energy independence.
Book a CallBattery Storage FAQs
Do I need solar panels to install a battery?
No. Batteries can also be charged from the grid, although they deliver the greatest benefits when paired with solar PV.
How long do battery systems last?
Most modern battery storage systems last 10–15 years or more, depending on usage.
Can battery storage power my home during a blackout?
Some systems offer backup capability to keep essential circuits running during outages.
Will a battery reduce my electricity bills?
Yes. Storing and using your own electricity reduces the amount you need to buy from the grid.
Can I add a battery to my existing solar system?
In most cases, yes. Solwat can assess compatibility and recommend suitable options.
Is there VAT on home batteries?
Since 1 February 2024, batteries installed in homes – including those added to an existing solar system – are zero-rated for VAT until 31 March 2027.
Reviews
What our customers say
Verified reviews from homeowners we've worked for, published on Checkatrade.
“James and Dan were friendly, knowledgable and courteous. The work was expedited in an efficient manner…”
Battery added to existing solar PV
SO30 (Hedge End area, near Southampton), October 2024
Helpful guides
Battery installation near you
Trusted Suppliers
Quality Assurance
The installation process
Solwat provides a complete battery storage installation service from consultation to commissioning.
- 1
Energy Assessment
We analyse your energy usage and solar generation.
- 2
System Design
Our specialists design a battery solution tailored to your needs.
- 3
Professional Installation
Accredited engineers install the system safely and efficiently.
- 4
Testing & Commissioning
We ensure optimal performance and system integration.
- 5
Monitoring & Support
Ongoing assistance to maintain long-term reliability.
Ready to get started?
Get in touch for a free, no-obligation quote. Our team will assess your property and recommend the best solution.
Solwat Green Energy
Lea Green Farm, Christchurch Road, Lymington, Hampshire SO41 0LA
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