The Solis S6 Hybrid Inverter series for high-voltage battery systems delivers exceptional flexibility, reliability, and performance across commercial and large residential installations. With power ratings from 15 kW up to 50 kW, each model features 4 independent MPPT (Maximum Power Point Tracking) channels, enabling optimal use of multi-orientation PV arrays and high-power modules.
Four MPPT Inputs: Perfect for complex rooftop layouts or multi-orientation PV arrays for efficient generation.
High PV Input Capability: Supports high input current and up to 160–200% PV capacity for surge energy utilization.
UPS-Level Switching & Backup: Automatic UPS switchover ensures only milliseconds of interruption during grid outages; plus 10-second surge capability at 160–200% of rated power.
Flexible Load Handling: Compatible with three-phase unbalanced and half-wave loads across grid and backup ports.
Parallel Operations & Generator Integration: Support for up to 6 (low-voltage) or even 10 (high-voltage Nordic version) units in parallel; includes dedicated generator port and smart load prioritization.
Energy Management & TOU Optimization: Integrated peak shaving, customizable charge/discharge schedules, and built-in support for SG-ready heat pumps and VPP/EMS systems.
Smart Connectivity: Built with Wi-Fi and LAN connectivity, plus RS485/CAN interface support for monitoring, configuration, and remote firmware updates.
Tailored for large residential or small commercial energy storage systems.
Delivers 4 MPPT channels with high input current (up to ~20 A per MPPT), UPS switchover, support for complex loads, and peak-shaving capability.
Compact design (approx. 563 × 546 × 235 mm) with IP66 protection.
Ideal for more demanding commercial or extensive rooftop installations.
Similar capabilities to the 15 kW with added parallel support for up to 6 units, robust 50 A charge/discharge current, and reliable UPS-level backup.
Designed for high-capacity commercial deployments, offering powerful performance and scalability.
Features include dual battery inputs, up to 140 A charge/discharge current, 160 % overload capability, smart load prioritization, and scalability with up to 10 units in parallel.
| Model Power | Use Case | Key Capabilities |
|---|---|---|
| 15 kW | Large residential / small commercial | 4 MPPT, UPS backup, 160–200% PV input, Wi-Fi/LAN |
| 20 kW | Small commercial / complex roofs | All 15 kW features plus 50 A battery current, parallel support |
| 30–50 kW | High-capacity commercial systems | Dual battery inputs, 140 A charge current, high overload handling, up to 10-unit parallel |
| Delivery Option | Delivery Time | Cost |
|---|---|---|
| Standard Delivery | 2-3 working days | £6.00 (£5.00 exVAT) |
| FREE Standard Delivery (orders over £99 exVAT)* | 2-3 working days | FREE |
| Next Working Day Delivery (order before 2pm) | Next working day | £9.99 (£8.33 exVAT)* |
| Next Working Day by 12pm (order before 2pm) | Next working day | £20.00 (£16.67 exVAT) |
| Next Working Day by 10:30am (order before 2pm) | Next working day | £21.60 (£18.00 exVAT) |
| Saturday Delivery (order before 2pm Friday) | Next working day | £20.00 (£16.67 exVAT) |
| Northern Ireland, Highland & Islands Delivery | 3-5 working days | £9.99 (£8.33 exVAT) |
Important: Orders placed after 2pm on Friday (or over the weekend) are processed on Monday for next working day delivery. Next Day & Saturday Delivery options NOT available on all products.
*FREE Standard & Next day delivery available on select products and will be clearly shown on the product page.
Please note: we cannot be held responsible for missed deliveries. Customers are advised to check their spam or junk folder to ensure tracking information and estimated delivery details are received.
Some products require specialist handling:
Last updated May 23, 2024
Thank you for your purchase, we hope you are happy with it.
However, if you are not completely satisfied with your purchase for any reason, you may return it to us for a full refund, store credit, or an exchange; please see below for more information on our returns policy.
RETURNS
If you find you have received the wrong or damaged item(s), you need to contact us within 7 days of receipt of goods. Any time after this you are responsible for returning the goods at your own cost following the standard returns process.
All returns must be postmarked and in writing within fourteen (14) days of the purchase date. All returned items must be in a new, unopened and unused condition, with all original tags and labels attached.
RETURN PROCESS
To return an item, please click the ‘Download Returns Form’ below and complete all data fields. You can then email this to our team once completed.
Place your item(s) securely in its original packaging along with the returns form.
Please note that the RMA# on the returns address is your original order number; please ensure to reference this on the returns address, as per below.
You are now ready to mail your return to the following address:
Attn: Returns
RMA #/Order No -
Eco WizardUnderfloor Wizard Ltd t/a ECO Wizard
Beechfield House
Winterton Way
Macclesfield
Cheshire
SK11 0LP
United Kingdom
We ask that all customers when returning products send the goods via a trackable courier service. Underfloor Wizard Ltd t/a ECO Wizard will not be held responsible for goods which do not arrive at our premises.
Please note, you will be responsible for all return shipping charges, unless in the instance of damaged/faulty goods received in which case we can issue you with a returns label to cover the cost of postage.
REFUNDS
After receiving your return and inspecting the condition of your item, we will process your return or exchange. Please allow at least seven (7) days from the receipt of your item to process your return or exchange. Refunds may take 1-2 billing cycles to appear on your credit card statement, depending on your credit card company. We will notify you by email when your return has been processed.
Faults on installed products:
If a product that has been installed develops a fault, please contact us, do not uninstall the product yourself. We will arrange for an engineer or technical support from the brand to assist with diagnosing the fault. Once the fault has been confirmed we can then arrange for the necessary next steps to occur.
EXCEPTIONS
The following items cannot be returned or exchanged:
QUESTIONS
If you have any questions concerning our return policy, please contact us at: returns@ecowizard.co.uk
