Solar Kit Off-Grid 18.0 kWp – Mono 20 kW – OPzV Battery 72 kWh

Store your surplus solar production for later use, get rid of the grid.

The basic kit contains 48 solar panels, two WKS Evo MAX II 10kVA 48V hybrid inverters, the solar cables to connect the panels to the inverter, the panel mounting system is available as an option. (The mounting system as well as the cabling and protections can be modified to suit your needs).

All our kits are configurable. In the options you can click on the product to choose another model or change the quantities to adapt the kit to your needs.
You can also see details of the products you have chosen directly below the price.

Benefits

Power and autonomy

Up to 23,500 kWh/year produced, with 72 kWh of storage to ensure power supply even when there's no sun.

Energy independence

Significant reduction in bills, with the option of total or partial self-consumption.
A potential saving of ≈ €7,048.80/year if the cost per kWh is €0.30. This shows a credible return on investment.

Reliability and longevity

Latest-generation panels, robust and durable OPzV batteries, high-performance hybrid inverters.
OPzV batteries are renowned for their long life if they are well maintained, partial cycle management, etc. .

Choose the inverter that meets your needs:

The WKS Evo MAX II 10 kVA 48 V is a high-performance, scalable solar hybrid inverter designed for high-demand residential or semi-collective installations. It stands out for its high power, operational flexibility and intelligent interfaces.		The Multisolar 10 kVA 48V is a robust, efficient and highly scalable three-phase hybrid inverter, particularly suited to solar installations that require autonomy (off-grid), grid support with battery, or optimisation of the solar production system.

Comparison table

A collection of videos to help you understand everything

Theme	Objective / Benefit
Technical labels	Decoding inverter information to make the right choice
Measuring DC voltage	Using a voltmeter to measure DC current
Protection box	Securing your installation: differential + earth
Connecting inverters and Pylontech batteries	Optimising installation and wiring
Lightning protection box (polarity)	Avoid polarity reversal
Lightning arrester box (earthing)	Understanding earthing
Connecting panels to an inverter	Maximising solar yield
AC IN/OUT connection	Correct electrical connection
AC wiring (neutral/phase)	Secure AC installation
Pylontech battery → WKS Circle inverter	Ensure optimum performance
Communication cable	Reliable system connection
Inverter pre-start	Pre-launch checks
Inverter-powered circuits	Ensuring correct operation & safety
Standard hybrid inverter start-up	Understanding indications & voltage
Basic UPS + lithium battery parameters	Optimising settings & performance

Hoppecke VS Pylontech batteries

Choose the battery that suits your needs:

The OPzV Pylontech US3000C This battery is a gel electrolyte lead-acid battery (OPzV type) designed for solar energy storage, offering: Tubular plate technology → improved durability, better resistance to cycling, even during frequent partial discharges. Gelled electrolyte → maintenance-free (no need to refill with water) and reduced risk of leaks or evaporation. Compact and robust formats, with the option of horizontal installation, offering great flexibility depending on the space available. Typical applications: self-consumption photovoltaics, isolated systems, emergency power, etc. LiFePO4 (lithium iron phosphate) technology - enhanced safety, thermal stability, long life. Modular system: you can increase capacity whenever you want. More than 6,000 cycles predicted, giving the potential for long life (15-year guarantee, depending on use). Typical applications: residential solar storage, hybrid systems with inverter, isolated / off-grid sites, backup / emergency power, tertiary / SME solutions, etc.

Comparison table

Typical use and adaptation

- Single-family home or large residence: it can cover the needs of a household equipped with numerous electrical appliances (heating, air conditioning, domestic appliances, etc.) and provide partial autonomy thanks to storage.

- Workshops, offices or professional buildings: it provides sufficient power to supply machines, computers, lighting or specific equipment, while reducing energy bills.

- Isolated or unconnected sites: with its batteries and hybrid inverters, it can be used completely independently, possibly with a generator as back-up.

- Back-up power supply: in the event of a power cut, the kit takes over and guarantees power to essential appliances.

- Community projects: ideal for schools, community buildings or community centres that want to reduce their dependence on the grid and invest in sustainable energy.

Connection diagram

Connection to WKS EVO Circle inverters