Battery Storage Systems & Installations – East & West Midlands

Battery Storage Installation FAQs

1. How much does battery storage cost in the UK?

Home battery storage systems typically cost between £4,000 and £9,000 depending on capacity. A 10kWh system (suitable for an average 3-4 bedroom home) costs around £6,000-£7,500 including installation. At Ronax, we provide transparent, no-obligation quotes with a detailed breakdown of costs and projected savings. We’ll assess your actual energy usage to recommend the right size system – not the most expensive one. Our free energy assessment includes a clear payback calculation so you can make an informed decision.

2. Can I add battery storage to my existing solar panels?

Yes, absolutely. Battery storage can be retrofitted to virtually any existing solar panel system, regardless of when it was installed or which brand you have. Ronax specialises in seamlessly integrating batteries with existing solar systems across the Midlands. We’ll assess your current setup, check inverter compatibility, and recommend the best battery solution that works with your existing equipment. Most retrofit installations are completed in just one day with minimal disruption.

3. Do I need solar panels to benefit from battery storage?

No, you don’t need solar panels.
Battery storage works brilliantly on its own by charging from the grid during cheap off-peak hours (as low as 6.5-9p per kWh) and powering your home during expensive peak times (25-30p per kWh). With time-of-use tariffs like Octopus Go or Intelligent Octopus, you can save £600-£900 per year without any solar panels. Ronax designs standalone battery systems specifically for tariff optimisation – it’s one of our most popular services for homeowners who can’t or don’t want solar panels.

4. How long do home batteries last?

Quality home batteries typically last 10–15 years with most manufacturers offering 10-year warranties. Battery lifespan is measured in charge cycles — premium batteries from Duracell Energy and Tesla offer 6,000–10,000 cycles, equating to daily charging for 15+ years. At Ronax, we only install proven, high-quality systems from approved manufacturers. Our 10-year workmanship guarantee means if anything goes wrong with our installation, we fix it.

5. What size battery do I need for my home?

Most 3-4 bedroom homes need a 9.5-13.5kWh battery to cover evening and morning energy use. A typical household uses 8-12kWh overnight, so a 10kWh battery provides excellent coverage. However, the right size depends on your specific usage patterns, whether you have solar panels, and your energy independence goals. Ronax provides a free energy assessment where we analyse your actual consumption data and recommend the optimal battery size for YOUR home – not a one-size-fits-all solution. We design systems tailored to your needs and budget.

6. How long does battery storage installation take?

Professional battery storage installation typically takes 1 day for most residential properties. You’ll have a working system by the evening. At Ronax, our expert installers arrive on time, work efficiently, and treat your home with respect. We handle everything: mounting the battery unit, electrical connections, inverter setup, smart meter integration, and system testing. Before we leave, we’ll walk you through how to use your system and set up the monitoring app. We don’t rush – we give every installation the time and care it deserves to get it right first time.

7. Is battery storage worth it without solar panels?

If you’re on a time-of-use tariff, you can save £600+ per year by buying electricity from as little as 6.9p per kWh overnight and avoiding the standard rate of 24.67p per kWh during the day. At Ronax, we’re honest – we’ll calculate whether battery storage makes financial sense for YOUR situation. If the numbers don’t work, we’ll tell you upfront rather than pushing an unnecessary sale. Our reputation is built on trust, not commissions.

8. What battery storage systems do you install?

We only install systems we genuinely trust – ones we know will perform reliably for years and improve over time through regular manufacturer software updates.

We are Duracell Energy Approved Installers and Tesla Energy Certified Installers, two of the most respected names in home battery storage. We will recommend the right system for your home, your usage and your budget – and whichever you choose, you can be confident you are getting a system, and an installation, built to last.