--- title: "Home Battery Storage in Tunbridge Wells | Solar & Grid | Spectrum" description: "Home battery storage systems in Tunbridge Wells and Kent, paired with solar or grid-charged on cheap overnight tariffs. MCS-certified, fixed quotes." lang: en-GB json-ld: | [ { "@context": "https://schema.org", "@type": "Organization", "@id": "/#organization", "name": "Spectrum Electrical & Building Ltd", "url": "/", "logo": "/__l5e/assets-v1/278be0ed-e1be-458b-a1b1-a08de471118f/spectrum-icon.png", "telephone": "07480 485988", "email": "spectrum.eb@mail.com", "address": { "@type": "PostalAddress", "streetAddress": "1 Sherwood Road", "addressLocality": "Tunbridge Wells", "addressRegion": "Kent", "postalCode": "TN2 3LB", "addressCountry": "GB" }, "areaServed": [ { "@type": "City", "name": "Kent" }, { "@type": "City", "name": "Tunbridge Wells" }, { "@type": "City", "name": "Tonbridge" }, { "@type": "City", "name": "Sevenoaks" }, { "@type": "City", "name": "Crowborough" }, { "@type": "City", "name": "Brenchley" }, { "@type": "City", "name": "Mayfield" }, { "@type": "City", "name": "Paddock Wood" }, { "@type": "City", "name": "Langton Green" } ], "sameAs": [ "https://maps.app.goo.gl/7AumDfwKajqS6xSU7" ] }, { "@context": "https://schema.org", "@type": "WebSite", "@id": "/#website", "name": "Spectrum Electrical & Building Ltd", "url": "/", "inLanguage": "en-GB", "publisher": { "@id": "/#organization" } }, { "@context": "https://schema.org", "@type": "Service", "serviceType": "Battery Storage Installer", "name": "Battery Storage Systems", "areaServed": { "@type": "City", "name": "Tunbridge Wells" }, "provider": { "@type": "LocalBusiness", "name": "Spectrum Electrical & Building Ltd", "telephone": "07480 485988", "address": { "@type": "PostalAddress", "streetAddress": "1 Sherwood Road", "addressLocality": "Tunbridge Wells", "postalCode": "TN2 3LB", "addressCountry": "GB" } }, "description": "Home battery storage systems in Tunbridge Wells and Kent, paired with solar or grid-charged on cheap overnight tariffs. MCS-certified, fixed quotes." }, { "@context": "https://schema.org", "@type": "FAQPage", "mainEntity": [ { "@type": "Question", "name": "How much does a battery storage system cost?", "acceptedAnswer": { "@type": "Answer", "text": "Costs vary by size, spec and complexity. Quotes are free. After a free on-site survey you'll receive a fixed itemised written quote, we aim for a 48-hour turnaround." } }, { "@type": "Question", "name": "Will a battery save me money without solar?", "acceptedAnswer": { "@type": "Answer", "text": "Yes. on overnight tariffs like Octopus Flux or Cosy, time-shifting cheap overnight electricity into peak hours typically delivers meaningful annual savings." } }, { "@type": "Question", "name": "Can the battery provide backup during a power cut?", "acceptedAnswer": { "@type": "Answer", "text": "Yes. with the right hardware (typically a gateway or backup interface) the battery can keep selected circuits running during outages." } }, { "@type": "Question", "name": "Which batteries do you fit?", "acceptedAnswer": { "@type": "Answer", "text": "Tesla Powerwall, GivEnergy, Sunsynk, Fox ESS, SolarEdge and more, chosen for your needs and existing kit." } }, { "@type": "Question", "name": "Do you handle the DNO notification?", "acceptedAnswer": { "@type": "Answer", "text": "Yes. DNO notifications filed with UK Power Networks as required." } }, { "@type": "Question", "name": "Where is the battery installed?", "acceptedAnswer": { "@type": "Answer", "text": "Most commonly garage, utility, plant room or external weatherproof enclosure. Location is confirmed at survey based on ventilation and access." } }, { "@type": "Question", "name": "Do you guarantee the work?", "acceptedAnswer": { "@type": "Answer", "text": "Yes. manufacturer warranty plus 1-year Spectrum workmanship guarantee." } }, { "@type": "Question", "name": "What areas do you cover?", "acceptedAnswer": { "@type": "Answer", "text": "Tunbridge Wells, Tonbridge, Sevenoaks, Crowborough, Brenchley, Mayfield, Paddock Wood, Langton Green and the wider Kent and East Sussex area." } } ] }, { "@context": "https://schema.org", "@type": "BreadcrumbList", "itemListElement": [ { "@type": "ListItem", "position": 1, "name": "Home", "item": "/" }, { "@type": "ListItem", "position": 2, "name": "Services", "item": "/services" }, { "@type": "ListItem", "position": 3, "name": "Battery Storage Systems", "item": "/services/battery-storage" } ] } ] --- Tunbridge Wells, Kent Mon–Fri 8:00–17:00 [spectrum.eb@mail.com](mailto:spectrum.eb@mail.com)[07480 485988](tel:+447480485988) [![Spectrum Electrical & Building Ltd](/__l5e/assets-v1/a7c2b1aa-2941-4064-ad5b-d00433ea5395/spectrum-logo.png)](/) [About](/about) [Building Services](/services) [Other Services](/services) [Service Areas](/service-areas) [Our Work](/our-work)[Contact](/contact) [07480 485988](tel:+447480485988)[Request Estimate](/contact) ![Wall-mounted home battery storage unit with inverter and neat cabling](/assets/battery-storage-Ch1hk1KF.jpg) Battery Storage · Solar & Grid · Kent # Home Battery Storage Systems across Tunbridge Wells & the wider Kent area Home battery storage paired with solar or grid-charged on cheap overnight tariffs, cut bills, add resilience and store your own generation for evening use. [Request my battery storage quote](/contact) [07480 485988](tel:+447480485988) Fully insured to £5m · MCS certified · DNO notifications handled · Solar & EV charger compatible 1. [Home](/) 2. [Services](/services) 3. Battery Storage Systems - AC & hybrid battery options - Tesla · GivEnergy · Sunsynk · Fox - DNO notifications filed - Octopus Flux / Cosy ready - 1-year workmanship guarantee Service overview ## What's involved in battery storage systems. Plain-English breakdown, so you know exactly what you're paying for and why it matters before we set foot on site. ### What it is Home battery storage systems sized to your usage, 5kWh to 20kWh+, paired with new or existing solar PV, or grid-charged on cheap overnight tariffs like Octopus Go, Flux or Cosy. AC-coupled or hybrid installs depending on existing inverter setup. ### Who it's for Homeowners with existing solar wanting to use more of their own generation, households on overnight tariffs wanting to time-shift cheap electricity into peak hours, and homeowners wanting backup power during outages. ### When you need it Existing PV system but exporting too much for the SEG rate; overnight tariff in place but no way to store it; or planning a major refit and want battery designed in alongside solar and EV charging. ### Why it matters Battery storage typically increases solar self-consumption from 30% to 70%+ and lets households on Octopus Flux or Cosy charge overnight at 7p/kWh and avoid 30p+/kWh peak rates, payback is usually faster than solar alone. The cost of doing nothing ## What goes wrong when this is ignored. Battery storage is only as good as its sizing, inverter strategy and tariff alignment. Oversized batteries on the wrong tariff lose money; undersized batteries cap savings before they start. ### Risks of waiting - Battery sized off generic 'average' usage rather than your actual bill data leaves money on the table. - AC-coupled retrofit onto an unsuitable existing inverter undermines warranty and efficiency. - No DNO notification means an unlawful install that can be enforced and disconnected. - Battery installed in an unsuitable location (poor ventilation, freezing garages) shortens lifespan dramatically. ### Common mistakes - Choosing the cheapest battery without checking cycle warranty and depth of discharge. - Skipping the tariff conversation, battery choice depends on whether you're solar-led or grid-led. - Forgetting backup power requirements, most batteries don't provide backup without specific hardware. - Not future-proofing for EV charging or extra PV later. Our process ## How the job actually runs. Same system every time. No improvising on your floor. 1. 01 ### Free on-site survey Bill data reviewed, existing solar setup assessed, tariff and usage pattern discussed, installation location confirmed. 2. 02 ### System design Battery capacity, inverter type (AC-coupled or hybrid), mounting location and DNO notification confirmed. 3. 03 ### Fixed written quote Itemised quote within 48 hours covering battery, inverter, mounting, electrical works and certification. 4. 04 ### Install Typical 1–2 day install including battery mount, inverter commissioning, app set-up and tariff configuration. 5. 05 ### Certification & monitoring MCS certificate where applicable, DNO notification filed, Electrical Installation Certificate and monitoring app walk-through. What you get ## The outcomes that matter. ### Cut peak-rate bills Charge from solar or cheap overnight tariffs and discharge during peak-rate hours. ### Backup power option Optional backup hardware keeps essential circuits running during grid outages. ### Solar-ready or grid-ready Works with new or existing PV, or grid-charged on Octopus Flux, Cosy or Go. ### Fixed price What we quote is what you pay, DNO and certification included. ### Major brands supported Tesla Powerwall, GivEnergy, Sunsynk, Fox ESS and more, chosen for your needs, not a fixed brand. ### 1-year workmanship Spectrum 1-year workmanship guarantee in addition to manufacturer warranties. In depth ## Everything worth knowing before you book. The details a salesperson skips. Skim it, or read every word, both are useful. Questions on this? Talk to a Spectrum tradesman direct. [07480 485988](tel:+447480485988) ### Battery paired with new or existing solar AC-coupled batteries fit alongside an existing solar PV inverter; hybrid inverters combine solar and battery management in one unit and are usually the right choice for new installs. We confirm which approach suits your existing kit and roof generation. ### Grid-charged on cheap overnight tariffs Octopus Go, Flux and Cosy offer 4–7p/kWh overnight rates. A correctly-sized battery charges fully overnight and discharges during peak-rate hours, typically delivering meaningful annual savings on a household with no solar. ### Backup power and grid resilience Optional gateway hardware allows the battery to isolate from the grid during an outage and keep selected circuits running, typically lighting, fridge, freezer and broadband. We design the backup load schedule with you at survey. Frequently asked ## Straight answers, no fluff. Can't see your question? Call [07480 485988](tel:+447480485988). How much does a battery storage system cost? Costs vary by size, spec and complexity. Quotes are free. After a free on-site survey you'll receive a fixed itemised written quote, we aim for a 48-hour turnaround. Will a battery save me money without solar? Can the battery provide backup during a power cut? Which batteries do you fit? Do you handle the DNO notification? Where is the battery installed? Do you guarantee the work? What areas do you cover? Ready when you are ## Book your battery storage systems job today. Fixed written quote. Insured tradesmen. No upsell, no pressure. [Request my battery storage quote](/contact) [07480 485988](tel:+447480485988) Fully insured to £5m Same-week starts 5-star rated locally Related services ## Other trades we cover. [View all services →](/services) [ ### General Building & Conversions Learn more ](/services/builder)[ ### Extensions (Single & Double Storey) Learn more ](/services/extensions)[ ### Loft Conversions Learn more ](/services/loft-conversions)[ ### Refurbishments Learn more ](/services/refurbishments) ![Spectrum Electrical & Building Ltd](/__l5e/assets-v1/a7c2b1aa-2941-4064-ad5b-d00433ea5395/spectrum-logo.png) Trusted residential & commercial electrical and building experts in Tunbridge Wells, Kent. Over 20 years of skilled trade across the South East. Same-day service guaranteed. [Follow on Instagram ](https://www.instagram.com/spectrum_elec_and_build) ### Services - [General Building & Conversions](/services/builder) - [Extensions (Single & Double Storey)](/services/extensions) - [Loft Conversions](/services/loft-conversions) - [Refurbishments](/services/refurbishments) - [New Builds](/services/new-builds) - [Shop Fitting & Commercial Fit-Outs](/services/shop-fitting) - [Electrical Installations & Rewiring](/services/electrician) - [EV Charger Installation](/services/ev-chargers) - [Solar Panel Installation](/services/solar) - [Battery Storage Systems](/services/battery-storage) - [Plumbing](/services/plumber) - [Landscaping](/services/landscaping) ### Company - [About](/about) - [Service Areas](/service-areas) - [Reviews](/reviews) - [Contact](/contact) ### Contact - [07480 485988 ](tel:+447480485988) - [spectrum.eb@mail.com](mailto:spectrum.eb@mail.com) - 1 Sherwood Road Tunbridge Wells, Kent TN2 3LB - Mon–Fri 8:00–17:00 · Sat–Sun closed © 2026 Spectrum Electrical & Building Ltd. 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