Mediterranean Sea Single-phase Hybrid Inverters

8 kW, 10 kW & 12 kW inverters designed for sodium-ion battery systems

Powerful, flexible and battery-ready, Eleven’s Mediterranean Sea range combines 8, 10 and 12 kW single-phase hybrid inverters with dual battery inputs, triple MPPT solar design, generator support and high-efficiency SiC technology for smarter home energy control.

Eleven Mediterranean Sea Inverter

Key Features

The Mediterranean Sea range is built for flexible, future-ready residential energy systems. With two independent battery inputs, three MPPTs, generator charging support, IP65-rated design, support for AC-coupled installations and dedicated emergency power supply (EPS) capability, it gives homeowners powerful solar, battery and backup control in one compact hybrid inverter platform.

  • Available in 8, 10 and 12 kW models
    A high-power single-phase hybrid inverter range designed for larger residential solar and battery systems.

  • Two independent battery inputs
    Capable of connecting any Eleven Energy batteries, regardless if they are different capacities or age.

  • Three MPPT solar inputs
    Optimise generation from up to three PV strings, ideal for roofs with panels facing multiple different directions.

  • Generator charging support
    Dedicated generator input enables backup battery charging when grid or solar supply is limited.

  • Dedicated EPS backup capability
    Keep essential circuits powered during grid outages with a dedicated emergency power supply output.

  • AC-coupled installation support
    Suitable for new solar-plus-storage systems and retrofit battery installations alongside existing PV inverters.

  • IP65-rated outdoor-ready design
    Built for reliable outdoor installation, with a compact 165 mm ultra-thin enclosure.

  • High-efficiency SiC technology
    Silicon carbide power electronics deliver up to 98.2% maximum efficiency and long-term performance

  • Smart Energy Management Platform
    Monitor, control and optimise solar, battery and home energy usage from one intelligent platform.

  • Fast & Intelligent Commissioning
    A streamlined commissioning process helps installers complete setup quickly and confidently.

  • Optimised Solar Yield
    Advanced algorithms use solar forecasting and intelligent export control to help maximise the value of every kilowatt generated.

  • Third-party Device Integration
    Integrated monitoring for compatible devices such as EV chargers and heat pumps enables a more connected home energy ecosystem.

  • Smart Immersion Heater Control
    Automatically manages immersion heater usage based on available surplus solar energy.

  • Real-time & Historical Monitoring
    Provides easy access to live and historical data covering energy production, household consumption and battery storage.

  • Remote Control of Key Settings
    Allows remote adjustment of charging schedules, discharging schedules and export power limits.

  • EV Battery Protection Logic
    Prevents the home battery from unnecessarily discharging into an EV, helping preserve stored energy for household use.

  • UK-based Secure Cloud
    Energy data is hosted securely in the UK, supporting reliable access and peace of mind.

  • Agile Octopus Compatible
    Compatible with Agile Octopus tariffs, enabling smart charging and discharging around dynamic electricity pricing.

  • Home Assistant Compatible
    Designed to integrate with Home Assistant for advanced smart home energy automation.

Technical Specifications

Input Parameter (PV)

EL8KEL10KEL12K
Max. DC Input Power18 kWp
Starting Voltage140 V
Max. Input Voltage800 V
MPPT Voltage Range130-800 V
Number of MPPT3
Input String Per MPPT1
MPPT Max. Input Current20 A / 20 A / 20 A
MPPT Max. Short Circuit Current24 A / 24 A / 24 A
PV Max. Efficiency98.2%

On-grid Parameter (AC)

EL8KEL10KEL12K
Nominal Output Power8 kW10 kW12 kW
Max. Output Power8.8 kVA11 kVA13.2 kVA
Max. Output Current40 A50 A60 A
Nominal Grid Voltage230 V
Max. Input Power from Grid18 kVA
Grid Voltage Range185 – 276 V (P2N)
Frequency Range45 – 65 Hz

Backup Terminal (AC)

EL8KEL10KEL12K
Nominal Output Power8 kW10 kW12 kW
Max. Output Power8.8 kVA11 kVA13.2 kVA
Peak Power & Duration20 kVA & 10s (Overload output is dependent on sufficient PV and battery energy)
Nominal Voltage230 V
Nominal Frequency50 Hz
Nominal Output Current38.3 A47.8 A57.4 A
Generator Max. Current82 A
Generator Voltage Range185-276 V (P2N)

Battery (DC)

EL8KEL10KEL12K
Nominal Battery Voltage45 V
Battery Voltage Range33 – 60 V
Max. Charging Voltage60 V
Number of Battery Input2
Max. Continuous Charging / Discharging CurrentUp to 125 A per input (250 A max)
Battery Charging / Discharging Efficiency95%

General Data

EL8KEL10KEL12K
Standby Power Loss≤15W
Dimension (W x H x D)465 x 665 x 165 mm
Weight36 kg
Noise Emission<45dB(A)
Operating Temperature Range-25℃ ~ 60℃ (>45℃ Derating)
Cooling MethodFan Cooling
IP RatingIP65
CommunicationRS485 / CAN / Parallel ports

Certificates & Approvals

CE-LVDIEC62109-1&2, IEC62040-1
CE-EMCEN61000-6-1, EN61000-6-2, EN61000-6-3, EN61000-6-4, EN61000-4-16, EN61000-4-18, EN61000-4-29
GridG99, G100

Protection Mechanisms

DC Switch (EN 60497-3)AC Overvoltage Protection: Level 3
PV Insulation Resistance DetectionBattery and PV Overvoltage: Level 2
Residual Current MonitoringDC Surge Protection: Type 2
Anti-islanding ProtectionLightning Protection
AC Short Circuit ProtectionReverse Polarity Protection (PV & Battery)
Overvoltage and Overload Protection

Document Downloads

Official Distributor

Midsummer Energy is our UK distributor and strategic partner in bringing our sodium battery systems to market.

Midsummer Energy

Website: https://midsummerwholesale.co.uk/
Phone: +44 (0)1223 851 535
Address: Midsummer,Cambridge Road Industrial Estate,Milton CB24 6AZ

Client Testimonials

Trusted by Installers. Loved by Homeowners. Hear from our satisfied customers.

“We couldn’t be happier with the Eleven Energy inverter and battery system and the support the company has provided”

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Adam R.
6 kW North Sea Inverter + 18 kWh Volta Sodium-ion Battery

“I can highly recommend the Eleven sodium battery for its performance and reliability”

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Simon B.
3.6 kW Inverter + 4.5 kWh Volta Sodium-ion Battery

“The products are very smart, easy to install, and probably the simplest on the market to commission”

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Mike H.
6kW Inverter + 9 kWh Volta Sodium-ion Battery

“From an installer’s point of view, it’s clear that usability and reliability were top priorities in the system design”

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Adrian B.
6 kW Inverter + 13.5 kWh Volta Sodium-ion Battery

“We’re new to solar so have appreciated having such a responsive team at Eleven Energy whenever we’ve had questions. We’d not hesitate to recommend them!”

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Kathleen W.
6 kW Inverter + 9 kWh Volta Sodium-ion Battery