Our plug in solar kit is the simplest way to start generating your own electricity. Plug it into a standard 3-pin socket and it begins cutting your bill straight away. There's no scaffolding, no installer and no major investment. Supply only: the kit is designed for you to set up yourself.
In a south-facing, unshaded spot, this kit could generate around 900 kWh a year. That could save you about £178 a year at typical UK prices, based on using most of it at home. At £395, that's a payback period of under 3 years, roughly a 45% annual return, from a system that could last 25+ years. – Better than money in the bank!
Want a figure for your own home? Send us your postcode and annual kWh usage and we'll prepare a free short report with your likely payback period and recommendations.
Plug and play solar works best on the electricity your home uses all day, every day: fridges, freezers, WiFi, CCTV, computers and central heating pumps. So, it saves you money even when you're out at work. And because it plugs in rather than being fixed to the property, it comes with you when you move.
• 2 x 465W black JA Solar panels, 30-year warranty (1762 x 1134 mm each)
• 2 x adjustable black anodised alloy mounts for ground, flat roof or south-facing wall, landscape or portrait
• Hoymiles HF-800-WB 800W microinverter with WiFi app monitoring, IP67 outdoor rated, 12-year warranty, 5 m cable and moulded 13A plug
• Microinverter mounting brackets (fits to the back of a panel)
• MC4 extension cable to connect the panels
1. Choose a sunny, unshaded spot, ideally facing south.
2. Fix the mounts to something solid, or use ballast blocks (we can supply these).
3. Connect the panels to the microinverter with the supplied cable.
4. Plug into an outdoor or indoor 3-pin socket and monitor output in the Hoymiles app.
Set the panels at 35° for the best all-year output. For maximum generation, adjust to about 50° in winter and 20° in summer. The mounts must be screwed or bolted to a stable structure or weighted down. Optional rubber ballast blocks (18 kg) are available at £12 each. Roof-mount versions are also available, corrugated, tiled, box profile etc. just let us know what you want to fit them to and we will price up the kit and send you a link to a “how to install” video.
Plug in solar kits like this have been widely used across Germany and Europe for years. The system runs on low-voltage DC only, with no high-voltage DC cable runs through the house. The Hoymiles HF-800-WB microinverter is listed on the ENA Type Test Register (HOYMZ/18074/V1/A3), which makes the inverter UK compliant. If you wish to register your plug in solar kit we will send you details of how to do this.
• Do you install the kit? No. We are supply only. The kit is designed for straightforward DIY set-up.
• Do I need to tell my DNO? No, but you should register the kit https://myplugin.solar/
• Can I get paid for exported electricity? Plug in kits aren't designed for the SEG scheme. Very little is left over to export, and feed-in payments are unlikely to cover the cost of MCS registration.
• Will it work in winter? Yes, at lower output. Steepening the panels to about 50° helps.
• Can I take it with me if I move? Yes. It belongs to you, not the property.
Please note delivery for this item is Not Free, Prior to your purchase, contact us with your post code and a short message with any details you think we should be aware of - for example - limited access or the number of units you are interested in etc... We will then find the most economical solution to safely deliver the kit to you and advise on the delivery fee. (Our min. fee is £25 or refer to the delivery page for guidance of likely delivery fees nationally).
Collection from Bergh Apton, near Norwich, is by arrangement.
We're a Norfolk-based, family ran solar supplier. We have lived off grid since 2008. We also design and supply complete on- and off-grid solar and battery kits taking guess work and compatibility issues out of the equation for you.
The Hoymiles HiBattery 4020X is a compact, all-in-one home solar battery that stores the electricity your panels generate during the day so you can use it in the evening and overnight. It combines a 4.02kWh LFP battery, solar input and smart energy management in a single wall-mounted unit — and when your needs grow, you simply add another module.
Start at 4.02kWh. Expand to 16.08kWh. No replacing what you've already bought.
Cut what you buy from the grid. Solar generated at midday is stored rather than exported, then used when the sun goes down — the hours when most households use the most electricity.
Make time-of-use tariffs work harder. The battery can charge when electricity is cheapest and discharge during peak-rate periods, so you're buying fewer units at the expensive end of the day.
Retrofit it to solar you already have. You don't need a new system. The 4020X accepts up to 4,000W of PV input and can be added to an existing setup.
Grow the system when you're ready. Add modules as your usage changes — an EV, a heat pump, a home office — up to a total of 16.08kWh.
See exactly what it's doing. Monitor generation, storage and consumption through the Hoymiles app over Wi-Fi or Bluetooth.
Modularity is the core of the HiBattery platform. Begin with the compact 4.02kWh HiBattery 4020X and add further battery units as your energy needs increase, scaling the system to 16.08kWh in total.
Each battery contains its own bidirectional DC/DC module. That means the system automatically manages and balances differences in state of charge when new capacity is added — so a module fitted in year three works alongside your original unit without dragging it down.
The HiBattery 4020X uses lithium iron phosphate (LFP) cells, the chemistry chosen across the industry for its thermal stability. On top of that, an intelligent battery management system provides multiple layers of protection:
Internal fire-extinguishing system, activated automatically
PV input over-temperature protection
Pressure relief valve
Stack connector temperature monitoring
Intelligent cell balancing
Low-temperature battery heating
Independent overcharge and over-discharge protection
With an IP66 rating against dust and water ingress and an operating range of -20°C to 55°C, the unit is built for real British weather rather than laboratory conditions.
Hoymiles HiBattery 4020X
Battery capacity 4.02 kWh
Maximum system capacity 16.08 kWh
Maximum output power 2.5 kVA
Maximum PV input 4 × 1,000 W
Battery chemistry LFP (lithium iron phosphate)
Cycle life8,000 cycles
Energy management Hoymiles AI-EMS
Protection rating IP66
Connectivity Wi-Fi 2.4 GHz / Bluetooth
Operating temperature -20°C to +55°C
Dimensions 520 × 199 × 384 mm
Warranty10 years
Whether you're retrofitting storage to an existing solar array or designing a solar-plus-battery system from scratch, the HiBattery 4020X is a straightforward place to start — compact enough for a utility room or garage wall, and modular enough to scale when your household's demands change.
Not sure how much storage you need, or which panels and accessories pair best with it? Get in touch with our team and we'll help you specify the right system for your home.
How much is 4.02kWh in practical terms? For a typical household, roughly a third to a half of a day's electricity use — enough to cover the evening peak for most homes, and the reason many customers start here and add a second module later.
Can I add the HiBattery 4020X to solar panels I already have? Yes. It accepts up to 4,000W of PV input and is designed for retrofit as well as new installations.
How long will the battery last? The LFP cells are rated for 8,000 cycles and the unit carries a 10-year warranty.
Can I install it outside? The IP66 rating covers dust and water ingress, and the battery operates from -20°C to 55°C with low-temperature cell heating built in.
How many batteries can I link together? Up to four modules, giving a maximum system capacity of 16.08kWh.
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