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Marstek Venus E 2.0 - 5.12 kWh
Marstek Venus E 2.0 - 5.12 kWh
Marstek Venus E 2.0 - 5.12 kWh
Marstek Venus E 2.0 - 5.12 kWh
Marstek Venus E 2.0 - 5.12 kWh
Marstek Venus E 2.0 - 5.12 kWh

Marstek Venus E 2.0 - 5.12 kWh

Save €300,00
Sale price€1.798,00 Regular price€2.098,00

Free shipping and VAT included

Marstek Venus E (with smart meter)
Enjoy solar savings on autopilot. With smart meter detection, your system knows exactly when your panels overproduce and turns it into battery power automatically.
What’s in the box

  • 1× Marstek Venus E (battery unit, 5.12 kWh, 2,500 W output)
  • 1× Marstek CT002 Smart Meter (for automatic charging control)
  • 1× AC charging cable
  • 1× User manual
    Smart Meter:

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    Marstek Venus E 2.0 installation video

    See how powerful and easy to install the Marstek Venus E 2.0 is.

    Up to 2.5 kW AC Input

    With or without PV, the Venus E 2.0 stores power when you want

    With or without PV, the Venus E 2.0 stores power when you want

    The Marstek Venus E 2.0 supports up to 2500 W AC input from the grid with fast charging capability. Fully compatible with any solar installation.

    Keep your setup as it is

    Forget complex wiring. You don't need to connect your solar panels directly into the battery. Just plug the Venus E 3.0 into your wall socket.

    One cable, double function

    Charging and discharging happens through the same power cable. Just plug the battery into a regular socket, and it automatically switches between charging and powering your home.

    Charge when it suits you best

    The battery recharges using your solar production or when electricity is cheaper, so you can use that energy when you need it most.

    5.12 kW to power all your home's needs

    Power your home efficiently with 5.12 kWh of storage

    Power your home efficiently with 5.12 kWh of storage

    Store more solar energy for everyday use

    With a capacity of 5.12 kWh, the Marstek Venus E 2.0 can cover the average household’s daily electricity consumption. This allows you to store enough clean energy to power your essential appliances such as lighting, refrigerator, washing machine, and electronics throughout the day.

    Charge smart, save more

    You can also charge the battery from the grid during off-peak hours, when electricity prices are lower, and use the stored 5 kWh when rates are higher, reducing your dependence on the grid and lowering your electricity bills.

    Designed for maximum flexibility, the Venus E 2.0 gives you complete control over your home’s energy smart, efficient, and built to save.

    2.5 kW of max output to power your home

    2500 W of power, available 24/7

    2500 W of power, available 24/7

    Enough power to run your home efficiently

    With 2,500 W of output, the Venus E 2.0 delivers the energy your home needs to maximize savings, power your daily appliances, and keep using your solar energy even at night.

    Power outage backup

    Stay powered during blackouts. With up to 2,500 W of off-grid output, the Venus E 2.0 can keep your essential devices like your fridge, lights, Wi-Fi, and more running . It's your safety net when the grid goes down.

    Always powered, day and night

    Whether you’re maximizing savings on-grid or staying protected during outages, the Venus E 2.0 ensures your home always has the energy it needs.

    Data sheet

    Smart meter and AI optimize your solar installation's efficiency and savings

    Make the best use of all you solar energy production

    Make the best use of all you solar energy production

    Maximize your savings intelligently

    With the Marstek Smart Meter, you make better use of your solar production, optimize your energy consumption and reduce your electricity bill. Avoiding to feed any surplus into the grid, the Marstek battery and Smart Meter stay in sync to store all the solar energy you don't consume on the spot.

    Monitor your energy

    Track your production, consumption, storage and savings through the Marstek mobile app. Choose between self consumption mode, AI mode, manual control or outage backup, all with a single tap on your phone.

    AI takes your savings to the next level

    Marstek's AI mode lets the battery determine the best time of the day to store, charge and discharge. This way you maximize your savings like never before.

    🔗 Marstek App on Google Play
    🔗Marstek App on the Apple store

    Product FAQs

    Storage - All

    How does a storage system for my plugin solar kit work?

    How does a storage system for my plugin solar kit work?

    In short: as easy as a plugin solar kit.

    There are different types of storage systems, can be divided into these main categories:

    Storage for already installed plugin solar kits

    If you already have a plug-in solar kit or another solar installation installed, you can add a storage system without modifying your panels or microinverter.

    These systems work together with your existing setup and store surplus solar energy for later use.

    Current compatible solutions include:

    All storage systems require a Smart Meter to monitor energy flows, detect surplus production and manage grid usage when needed.

    Smart kits (with storage)

    If you want to install solar panels and storage at the same time, a Smart Kit is the easiest option.

    Smart kits combine:

    • solar panels,
    • storage systems,
    • mounting structures and cables.

    They allow you to produce, store and use solar energy in a simple plug & play way.

    Standalone storage systems

    Standalone storage systems do not require a direct connection to solar panels.

    They connect to a standard household socket and:

    • store surplus energy produced by your solar installation,
    • charge and discharge through your home’s electricity network,
    • can also be charged with grid energy, for example during low-cost tariff periods or if no solar panels are installed.

    A Smart Meter is required to manage energy flows correctly.

    Can I also charge my storage with power from the grid?

    Can I also charge my storage with power from the grid?

    In short: with a hybrid storage system, yes.

    Most storage systems that have launched in recent months include “hybrid” charging. This means that the storage system can not only discharge into the home’s power network, but also charge from it.

    This functionality allows you to top up your battery with power from the grid. This makes sense if your power tariff has very cheap prices in some dayparts, when topping up costs little, and use that power in the more expensive dayparts.

    How much storage do I need for my home?

    How much storage do I need for my home?

    In short: this depends on your consumption levels.

    Storage needs can be looked at from several sides:

    • Solar kit production. If you look at how much your solar kit produces during an entire day, and how much you consume on the spot, the rest is what you will have to store. For example, if your Plus 2000 kit produces 8 kWh per day but during the day you only use 3 kWh, then you need at least 5 kWh of storage for your surplus, to use it when the sun doesn’t shine.
    • Household demand. If you know how much you consume per day at home after subtracting the immediate consumption of your solar kit’s production, you know what you're missing. A part of that can be covered by storing your solar kit’s surplus. The rest can be covered by charging in low-cost hours from the grid. For example, if you consume 10 kWh per day in the above example, you will need 2 kWh to charge from the grid on top of the 5 kWh mentioned above.

    And remember, that when it comes to batteries, you should never discharge below 10% and never charge over 90%. This means that you can only use 80% of any battery capacity. This would mean that in the above scenario of 7 kWh of required storage, you will need a storage system of 9 kWh, whose 80%-capacity of 7,2 kWh covers your needs.

    Will a storage system also work during power outages?

    Will a storage system also work during power outages?

    In short: Some of them do.

    Several storage systems that have launched recently have an “AC outlet”, also known as “emergency outlet” or “anti-blackout”. This is a Schuko socket that delivers electricity when the network goes down. These systems can also be used in homes that are not grid connected.

    During power outages, like the “apagón” in Spain, Portugal and parts of France in April 2025, these systems provide critical base power to their customers, literally “keeping the lights on”. With sufficient storage capacity, and daily recharge with your solar kit, you can easily get through power outages also for longer periods of time.

    Does a storage system store all my surplus energy?

    Does a storage system store all my surplus energy?

    In short: yes it can.

    For any storage system to work effectively, or be “intelligent” as sometimes labelled, you need a smart meter. This device measures the flow of electricity from the grid to your home.

    If you consume from the grid, it will tell your storage system to feed in more, trying to reduce or eliminate grid consumption.

    If you feed surplus energy into the grid, it will tell your storage system to store that surplus energy. These changes happen in real time in fractions of a second, and maximize the self consumption of your solar energy. Since you don’t feed into the grid you’re also not subject to certification or registration requirements in many countries.

    Customer installations of solar batteries

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    What our customers say about us

    Daniel

    Excellent service

    The entire process went smoothly. The website is simple and effective. The payment process was transparent and seamless. The shipment was on time, although the carrier split it into two packages with only one tracking number, which caused some confusion for me, but this was quickly clarified by Robinsun's customer service.

    Plugin solar kit Performance 400

    Jose Antonio Granero Miralles

    Everything perfect

    The personal service over the phone was outstanding. There was a problem with the agency, and they resolved it quickly. I will work with them again and recommend them.

    Plugin solar kit Performance 800 Basic

    Harry O'Connor

    Amazing support and great prices

    Amazing support and great prices. What's not to like? Really lovely people on WhatsApp helping you with everything. Don't delay, invest in solar!

    Marstek Venus E 3.0 - 5.12 kWh Storage system

    Benz Kotzen

    Delivering to us in Portugal is difficult and despite the difficulties with the Portuguese postal system, the staff at Robinsun were extremely helpful. The plug and play system we ordered was delivered within the set time frame, all pieces present and well packaged and now we are getting the 800 kWh at peak sun as promised.

    Plugin solar kit Performance 800 Flat

    Paul Brabant

    Get your equipment here

    I only have good things to say about this company. I haven't experienced customer like this in Spain. Reminds me of the best companies in the US, where the customer is king. Super easy installation, quick software install, and up to 1.3kwh with 4 panels. Brilliant.

    Solar kit Plus 2000

    Wies Verstraete

    The service of Robinsun is outstanding

    The service of Robinsun is outstanding. Although the panels were damaged in the transport (which wasn't their fault), they did everything to send new panels asap. Very easy communication via WhatsApp.

    Plugin solar kit Performance 800 Flat

    Pedro Oliveira

    Overall experience was pretty good with a package that made sense, good videos explaining how to set everything up and follow up over whatsapp to confirm everything was going as expected.

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    IZ0 JUB

    5 Star After Sales Service

    I would like to thank Boris and his team for swapping out the TSUN storage battery for the ANKER Solarbank through no fault of Robinsun's the manufacturers TSUN admitted there was a problem with their equipment. The Anker is working great and giving us power all through the evening and is usually fully charged at this time of the year just after lunch. Robinsun's after sales service is second to none. 5 stars plus.

    Anker Solarbank E1600

    Eduard Frades Fabrega

    I bought a basic setup without issues…

    I bought a basic setup without issues and I got am excelllent support before buy the product.

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    Moisés

    The experience is very positive, they are giving you support for all the problems that you can suffer, for example, logistic, configuration. To me they are the best.

    Plugin solar kit Performance 800 Wall

    Luis Gomes

    Excelent products and excelent support.

    Excellent products and excellent customer support. I bought a solar kit, and from the very first moment, the support via WhatsApp was excellent. Very fast delivery to Portugal without any problems. Everything worked perfectly, and I was very satisfied. I recommend Robinsun and will buy from this company again in the future.

    Plugin solar kit Performance 800

    Celso Vieira

    Customer support is great. Instalation was very easy and fast. In no time it was working, producing power and saving the planet. Recommend to all. Good job robinsun!

    Plugin solar kit Performance 800 Basic

    Ulrich S Barcelona

    This is a very simple fast and economic way…

    ...to start producing solar energy by yourself in Spain. Very responsive, and smooth and fast shipment and declaration to the authorities. Very easy to assemble.

    Plugin solar kit City 800

    Paolo Tedone

    Excellent customer service

    Excellent customer service, fast, reliable.
    Product according to description, easier than IKEA to install.
    From 10am 100% coverage of baseload needs, when sunny 😉

    Plugin solar kit Performance 800 Flat

    António Olaio

    Excellent customer service

    Excellent customer service. Always available and with clear and accurate information. Received the order the next day, well before the expected delivery date. 5 well-deserved stars.

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    Jose Antonio

    Friendly service and quality materials

    Very fast shipping and everything perfectly packaged. The system's anchors are high quality. The system itself is working correctly. The information and advice provided beforehand were very helpful and accurate.

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    Lydia C

    Excellent personalized service

    The team guided me through the process of choosing my kit; I didn't know anything and they explained everything to me. Highly recommended.

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    Marc Borràs Conte

    Everything was great!

    The purchase process went very well. They answered all my questions both before and after the purchase. Excellent!

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    Juan Carlos Alguacil

    Professional and friendly supplier

    The purchase arrived on the expected date. I had some setup issues that the manufacturer resolved with an update. The after-sales service and customer support were friendly and prompt.

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    Miguel Angel Pastor Colinas

    Excellent service

    Excellent service, advice, and now installation follow-up. For the small amount I purchased, they've been very helpful. I hope to expand my installation with them.

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    Mary Aranda

    City 800 Pack Highly Recommended

    I bought the City 800 pack and it works great. It's easy to install and doesn't require any advanced DIY skills. I recommend it to reduce your home's electricity consumption.

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    shahed

    Excellent Solar Investment and Outstanding Service

    Purchasing the solar system has been a great decision. We’ve reduced our electricity bills by over 50% with just four solar panels. The service was very fast, and the advice was equally excellent—they helped us throughout the entire documentation process. We’ll continue buying their products because we find them to be high quality, and their customer service is outstanding

    Solar kit Plus 2000

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