Solar & Battery Packages UK: Costs & What You Get
Buying panels and a battery together? Here’s what a package costs by home size, exactly what’s included, and why bundling is cheaper than buying the two separately.
The short answer
A solar and battery package typically costs £8,000–£14,000 fully installed in 2026 (0% VAT until March 2027), depending on your system and battery size — from around £6,000–£7,000 for a terraced home up to £13,000–£16,000 for a premium all-in-one setup. The battery is the biggest single cost, adding £2,500–£8,000 over a panels-only system.
The key thing to understand: buying panels and a battery together as a package is cheaper than buying them separately — you share one lot of scaffolding, one survey and a single hybrid inverter, and get 0% VAT on the whole lot. Bundling saves roughly 12–20% versus retrofitting a battery later, and it delivers the best performance (self-consumption jumps from ~30% to over 80%). A package includes everything — panels, hybrid inverter, battery, mounting, wiring, scaffolding, MCS certification, monitoring and warranties. Full prices by home size, what’s included, and how to size it — below.
What this guide covers
If you’ve decided you want both solar panels and battery storage, buying them as a single package is usually the smartest way to do it — cheaper, better-matched and less hassle than adding a battery later. This guide gives the honest 2026 numbers, what a proper package should include, and how to make sure you’re comparing complete quotes like-for-like.
Solar & battery package prices by home size
| Home | Typical package | Installed price |
|---|---|---|
| Terraced | 3kW + 3–5kWh | £6,000–£7,000 |
| Semi-detached | 3–4kW + 5–10kWh | £7,000–£10,000 |
| Detached | 4–5kW + 10–12kWh | £9,000–£11,000+ |
| Premium all-in-one | 4.65kW + 10kWh+ | £13,000–£16,000 |
A solar and battery package costs £8,000–£14,000 for most homes (0% VAT to March 2027), scaling with system and battery size as above. The battery is the biggest cost driver — a 5kWh adds roughly £2,500–£5,000, a 10kWh £4,000–£6,500, and a 13.5kWh Tesla Powerwall £8,500–£10,500. As a real example, one common 2026 all-in package offers ten 465W panels (4.65kWp) plus ~10kWh of storage, a hybrid inverter and all paperwork for around £8,000 fully installed. These are complete prices including the full installation, not just hardware. The exact figure depends on your roof and choices, so get a package quote for your home.
Why buying a package is cheaper than separately
Bundling saves 12–20% — here’s why
Buying panels and a battery together is almost always cheaper than buying them separately, for three concrete reasons:
1. Shared scaffolding & one install visit. You pay for scaffolding and installation labour once, not twice. This is the big one — a battery retrofitted later alone can cost £4,500–£7,000 largely because of that repeated setup.
2. One hybrid inverter. A package uses a single hybrid inverter designed to run both the panels and the battery — so you avoid buying and fitting a second inverter or add-on unit.
3. 0% VAT on the whole lot. Panels, battery and labour are all zero-rated until March 2027, maximising the saving across the full package.
On top of the cost saving, a bundle performs better: the components are matched and commissioned to work as one system, your self-consumption jumps from ~30% to over 80%, and you unlock the best smart export tariffs (up to ~32p/kWh on Intelligent Octopus Flux). Industry guidance is consistent: adding a battery at install is ~12–20% cheaper than retrofitting (the Energy Saving Trust has more on solar and storage). So if you know you want storage, put it in the original package.
What’s included in a solar & battery package
A complete package covers everything needed to design, fit and commission a working system — not just the visible kit. A proper package includes:
- Solar panels (typically 8–14 for a home system) — ideally tier-1 panels
- Hybrid inverter — converts the power and manages both panels and battery
- Battery storage (commonly 5–10kWh) — see the best batteries
- Mounting hardware, roof fixings, wiring and consumer-unit connections
- Scaffolding for safe access
- MCS certification (essential to claim the Smart Export Guarantee)
- DNO grid notification (G98/G99)
- Monitoring app + full product and workmanship warranties
A good installer also includes the design, survey and all paperwork. When comparing quotes, check each is genuinely complete — a suspiciously cheap package sometimes excludes scaffolding, certification or a proper warranty, so make sure you’re comparing like-for-like.
What size package do you need?
Match the panels to your usage and roof, and the battery to your evening use. Sensible starting points: a 3-bed home suits a 4kW system + 5kWh battery (a well-balanced, common package); a larger 3–4 bed home, a 4–5kW system + 10kWh battery; and a home with an EV or heat pump, a 5–6kW system + 10kWh or larger battery to feed those overnight loads. The most common mistake is over-buying the battery — most homes use just 1–3kWh in the evening peak, so a 9–10kWh battery covers evening and overnight use well, while a much larger one often won’t fill on short winter days (so the extra capacity rarely earns its keep). Panels are more forgiving — within reason, more generation is useful, especially with an EV or battery to soak up the surplus. See our battery sizing guide for the detail, and our 4kW-with-battery guide for the most popular package in action. All 2026 batteries use LFP chemistry — the safe, long-life standard.
Savings & payback
A well-sized package typically saves £700–£1,500 a year on bills, plus £100–£300 a year from SEG export payments — a payback of 7–12 years on a 25-year+ system. The battery drives savings to the higher end by lifting self-consumption from ~30% (panels alone) to over 80%, storing daytime solar for the evening peak instead of exporting it cheaply — and on a smart tariff like Intelligent Octopus Go, letting you charge cheaply overnight too. With the energy price cap having risen in 2026, self-generating and storing your own power is more valuable than ever. Whether the battery portion is worth it for you specifically depends on your usage and tariff — our are solar batteries worth it? guide walks through that decision honestly. For most homes with a decent roof, a package bought as a bundle (to keep the upfront cost down) is a sound long-term investment.
Frequently asked questions
How much does a solar and battery package cost?
£8,000–£14,000 fully installed for most homes (0% VAT to March 2027). By home: terraced 3kW+3–5kWh £6,000–£7,000; semi 3–4kW+5–10kWh £7,000–£10,000; detached 4–5kW+10–12kWh £9,000–£11,000+; premium all-in £13,000–£16,000. The battery adds £2,500–£8,000. See our cost guide.
Is it cheaper to buy panels and a battery together?
Yes — bundling is ~12–20% cheaper than retrofitting a battery later. You share one lot of scaffolding, one survey and a single hybrid inverter, with 0% VAT on the whole package. It also performs better (matched components, 80%+ self-consumption). If you want storage, include it from the start.
What’s included in a package?
Panels, hybrid inverter, battery, mounting, wiring, scaffolding, MCS certification, DNO notification, monitoring app and full warranties — plus design, survey and paperwork. Check each quote is genuinely complete; cheap ones sometimes exclude scaffolding, certification or warranty. Compare like-for-like.
What size package do I need?
3-bed home: 4kW + 5kWh. Larger 3–4 bed: 4–5kW + 10kWh. EV/heat-pump home: 5–6kW + 10kWh+. Match panels to usage, battery to evening use (most homes use 1–3kWh at peak, so 9–10kWh suits most). Don’t oversize the battery. See our sizing guide.
How much can you save?
£700–£1,500/yr on bills + £100–£300/yr SEG export, payback 7–12 years. The battery lifts self-consumption from ~30% to 80%+, and a smart tariff adds more. Whether the battery’s worth it depends on your usage/tariff — see are batteries worth it?
Can I add the battery later instead?
Yes, but it costs more — retrofitting a battery is ~12–20% dearer than including it in the original package (repeated scaffolding, survey and a possible extra inverter). If budget’s tight you can start with panels and add storage later; if you’re fairly sure you want it, bundle it now to save.
The verdict
If you want both solar and storage, a package is the smart way to buy — typically £8,000–£14,000 all-in, and cheaper than adding a battery later because you share the scaffolding, survey and a single hybrid inverter, with 0% VAT across the lot. Bundling saves roughly 12–20% versus retrofitting, delivers a better-matched, higher-performing system (80%+ self-consumption), and gets the whole job done in one visit with one warranty. The main things to get right are sizing the two to match your usage (don’t over-buy the battery) and making sure every quote is genuinely complete so you compare like-for-like.
Because package prices swing on your roof, chosen kit and battery size, the only way to know your real number is to compare complete quotes. A couple of free, no-obligation package quotes from MCS-certified installers will show you the full installed price, the right sizing for your home, and your expected savings and payback — so you get a properly matched solar-and-battery system at a fair bundled price.
Important
Going Solar UK is an introduction service, not an installer. This guide gives typical 2026 UK package prices for research: actual costs vary by property, system and battery size, equipment, location and installer, and prices and VAT rules change – the figures here are estimates, not quotes or guarantees. Always obtain itemised written quotes from MCS-certified installers (at least three) and check each is genuinely complete before committing.
We may receive a commission when we introduce you to an installer, at no cost to you. Any contract for work is directly between you and the installer.