Description
x5.5kW Home Energy Storage All-in-One with 10kWh Lithium Battery – ENA Certified G99
The Voltacon 5.5kW home energy storage system combines a hybrid inverter, 10kWh lithium battery bank, and AC charger in a single compact metallic cabinet. ENA certified and G99 compliant, it is designed for grid-tied residential installations and supports self-consumption, backup power, and off-peak tariff charging. The battery is expandable to 50kWh. Solar panels are beneficial but not compulsory.
Key Features
- 5.5kW hybrid inverter with integrated solar and AC charger up to 100A
- 10kWh lithium-ion battery storage, expandable to 50kWh
- ENA certified and G99 compliant for UK grid connection
- Self-consumption and grid feed-in operation
- Programmable supply priority: PV, battery, or grid
- Multiple operating modes: grid-tie, off-grid, and grid-tie with backup
- Built-in timer for scheduled charging and discharging
- Over 8,000 battery cycles
- High surge discharge current up to 3C
- Multiple communication interfaces: USB, RS232, Modbus, SNMP, GPRS, Wi-Fi
- Real-time monitoring software included
- IP20 rated for indoor installation only
- Cabinet dimensions: 160 x 62 x 20cm (inverter and 2 battery tower)
Product Overview
The system stores energy from solar panels or the mains grid and feeds it to the consumer unit, reducing dependence on grid electricity during peak tariff periods. When solar generation is available, the system prioritises self-consumption, charging the battery with any surplus. Without solar panels, the battery can be charged on an off-peak overnight tariff and discharged during the day to reduce electricity costs.
The 10kWh battery bank provides double the storage of the 5kWh variant, making this system better suited to larger households or properties with higher overnight energy demand. Battery capacity is expandable in modules up to a maximum of 50kWh.
This system is compatible with monocrystalline and polycrystalline PV modules only. Do not connect any other PV array types. Do not connect the positive or negative terminal of the solar array to earth.
Certifications
VDE 4105, VDE 0125, G99, NRS 097-2-1, IEC/EN 62109-1/-2, IEC 62040-1, IEC 62477-1, IEC 62717, IEC 62116, EN 50549-1, IEC 61000-6-2/-6-4, IEC 61000-3-11/-3-12, IEC 61683, UN 38.3, IEC 62619, IEC/EN 61000-6-3/-6-1
Applications
- Residential grid-tied solar self-consumption systems
- Off-peak tariff charging and peak-hour discharge
- Home backup power during grid outages
- Properties with or without existing solar PV
Installation and Safety Notes
This system must be installed by a qualified electrician or MCS-accredited solar installer. G99 notification and DNO approval must be obtained before grid connection. AC wiring, battery connections, DC fusing, and earthing must comply with IET Wiring Regulations. IP20 rated for indoor use only. Do not attempt DIY installation.
Return Policy
xWe offer a 14-day, no-quibble returns or replacement policy because we want you to be totally satisfied with your purchase.
If you are unhappy in any way with your purchase, you can return it for a refund or a replacement, as long as you return it in the same condition as it arrived (original/undamaged packaging and product) and within 30 days of receiving it. We will pay for your return postage on a faulty item as long as you send it using Royal Mail 2nd class recorded delivery (for EU or International Shipments, you have to use our UPS account, we will provide you with a return label)
Please keep in mind the following:
- Non-faulty items returned after 14 days and/or not in their original, undamaged packaging can only be exchanged for store credit - 15% off the items returned.
- Items returned within 14 days but not in their original and undamaged packaging will also incur a -15% charge per package.
- If you return an item that doesn't adhere to our returns procedure or doesn't include a returns form, you may be liable for a £10 administration fee
- Individual items from a bundle can't be returned, refunded or exchanged. If you want a refund/credit/exchange for a bundle, all items must be returned to us.
Before you return your item, please make sure that:
- You follow our returns process (outlined below)
- The goods and packaging are undamaged
IMPORTANT: We need to be able to identify an item with your order. We can only do this if you follow our returns process. Please do not send us items back that do not follow this process as they cannot be identified properly and will not be replaced or refunded.
What delivery method do I need to use when returning an item?
You must send the goods back to us via Royal Mail 2nd class recorded delivery. Refunds on faulty items returned are reimbursed within 5 working days.
Can I return just one item from multiple purchases?
Yes. Once you start the returns process you will go to a page that will allow you to choose which items you want to be replaced or refunded.
Returning faulty goods
If your item is faulty, you need to follow the returns policy, where you will be able to state that it’s faulty. The product will then arrive at our warehouse for testing.
If your purchase is not within 14 days
You can still exchange your item for a different product or for credit to use on the Voltacon Solar or Ledison-led-lights.co.uk websites (-15% from the credit amount).
Returns outside of the 14-day period do not qualify for the free returns policy.
Returning an item within the warranty
If you have a warranty and want to return a faulty item, you just need to follow our standard returns process. When we receive your item, we will then check that it’s within warranty and for any faults before arranging a replacement.