Top storage system for PV techniques

Photovoltaic techniques have gotten more and more standard. This will not be solely resulting from in depth authorities subsidies, but additionally the will for an inexpensive and, above all, self-sufficient energy provide for one’s personal family. However, to make sure that the electrical energy produced will not be fed into the general public grid unused, an vitality storage system is crucial. Unfortunately, the set up of such storage options is normally sophisticated and requires the assist of a certified electrician. But that doesn’t need to be the case. You merely want to attach so-called AC fashions to a home energy socket. In the Marstek Venus-E Gen 3.0 AC TEST, we check out simply such a storage system. Not solely does it provide nice worth for cash, it additionally appears fairly.

Technical knowledge

€ 1,119.00

Gewöhnlich versandfertig in 9 bis 10 Tagen

Scope of supply

• Marstek reminiscence
• AC cable
• Wall bracket
• Instruction guide

Marstek Venus-E Gen 3.0 AC TEST: Design and workmanship

A novel promoting level of the MARSTEK VENUS E Gen 3.0 AC is undoubtedly its design. In distinction to opponents corresponding to a Hoymiles HelloBattery AC (Review | € 558.00 *) or the Zendure SolarFlow 2400 AC (Review | € 995.00 *), the storage system doesn’t look overly technical. It not solely appears high-quality, but additionally scores factors with its fashionable design and nice workmanship.

This means it may also be positioned visibly in the lounge with out hesitation. MARSTEK depends on a shiny black floor for the entrance. A thick glass plate gives adequate safety, which seems to supply dependable safety towards scratches. The LED components, that are discreetly introduced, additionally make a fantastic impression. They present data on an important parameters with out being too conspicuous. The solely factor I miss here’s a extra detailed indication of the remaining reminiscence degree.

The edges are rounded, which provides the strong system a sure lightness regardless of its weight and makes it visually enticing. Thanks to its shallow depth of simply approx. 15 cm, the MARSTEK could be simply positioned on a wall with out taking on a lot house. It is subsequently not shocking that the producer features a appropriate wall mounting bracket within the scope of supply. However, the crux of the system turns into obvious on the newest when the supply firm rings the doorbell.

With a weight of round 60 kg, it’s considerably heavier than the competitors, which implies a lack of flexibility. While the opponents from Hoymiles and Zendure could be simply carried from A to B, the MARSTEK is clearly designed for a stationary impression. Practical castors on the underside may have solved this drawback. Instead, there are carrying handles on the left and proper, that are sadly very slippery. On the opposite hand, the IP65 certification and the power to function at temperatures as little as -20°C are constructive options.

There are plastic covers on the perimeters, underneath which the system connections are positioned. On the left are two LAN ports and the On/Off button. On the right-hand facet, we discover the Schuko socket for OFF-grid operation and a direct connection for the inverter. Overall, the MARSTEK VENUS E makes a wonderful impression each visually and haptically – on this respect, it’s positively the most effective in the marketplace.

Marstek Venus-E Gen 3.0 AC TEST: Quick commissioning

A significant benefit of AC fashions such because the VENUS E is that they’re very straightforward to arrange. There isn’t any want for classy wiring with PV modules or inverters. Once you might have discovered an appropriate place for the storage system, you solely want to attach it to an influence socket for full-blown PV techniques and optionally connect it to the wall utilizing a wall bracket. Users of a balcony energy plant additionally join the OFF-grid socket of the storage system to the inverter. Even laymen can do that.

However, you will need to all the time maintain the load of the MARSTEK in thoughts. To shield your again and forestall harm to the machine, it’s subsequently finest to have a serving to hand at your facet. As quickly because the VENUS E is related to the mains through a socket, swap it on utilizing the facility swap and take out your smartphone. The subsequent step is to make use of the MARSTEK app. Once you might have created a person account, the storage unit is solely added as a brand new machine.

In observe, this works in a short time, because the Bluetooth connection between the smartphone and the reminiscence is shortly established. Once the connection is established, all you must do is join the MARSTEK to your community to allow distant entry. Once I had accomplished this, the reminiscence first put in three firmware updates. Once these have been totally put in, I used to be able to get began. If you wish to unleash its full potential, it’s finest to attach the VENUS 3 to a wise meter.

Marstek Venus-E Gen 3.0 AC TEST: Smart meter is obligatory

MARSTEK supplied us with its in-house sensible meter MARSTEK CT002 (€ 64.49 *) for this objective. Alternatively, you may as well use different well-known fashions such because the everhome EcoTracker (€ 73.48 *) or a Shelly Pro 3EM (€ 88.99 *). Once I had put in the CT002 in my meter cabinet, I used to be additionally in a position so as to add it as a brand new machine within the app.

I then established a connection between the VENUS and the CT002. This labored easily in observe and provides you as a person considerably extra choices. Since a wise meter analyzes the facility flows intimately, it makes the VENUS E a lot smarter. In observe, this appears like this: If the sensible meter registers that your PV system is presently producing electrical energy through the PV panels, the storage system is charged with surplus vitality in a focused method.

Marstek Venus-E Gen 3.0 AC TEST: MARSTEK App

I can’t complain in regards to the MARSTEK app. I believe that the producer has created a clearly structured piece of software program. This actually pays off in observe. After all, there aren’t any setting choices on the machine itself. You can fine-tune the storage system within the app. For instance, you may set the enter and output energy. You may outline the MARSTEK’s technique for coping with extra vitality.

These completely different working modes enable customers of the VENUS E to function the storage system flexibly. For instance, the app provides a mode that can be utilized to maximise the consumption of self-generated electrical energy. There can also be an AI-based possibility for customers of a dynamic electrical energy tariff. And you may even set guidelines for a way the MARSTEK storage system ought to behave at sure instances. It can also be attainable to set threshold values and be taught consumption habits.

Operation is straightforward, because the producer depends on software program with a contemporary interface. On the beginning web page, you get an outline of the related MARSTEK gadgets. If you faucet on the VENUS, an important parameters are displayed at a look. The app scores factors for its suitability for on a regular basis use and a very good overview. I didn’t have any efficiency issues in observe. I solely seen that it generally took a number of seconds for the information overview to load to the reminiscence.

Marstek Venus-E Gen 3.0 AC TEST: Practical take a look at

In on a regular basis use, the MARSTEK VENUS E 3.0 impresses with its reliability and robust efficiency. This will not be least resulting from the truth that the system labored stably always and was in a position to react shortly to altering situations. The enter and output energy of max. 2.5 kW is especially spectacular. This is necessary not just for all those that wish to function power-hungry shoppers through the OFF-Grid socket, but additionally for all these with massive PV techniques.

However, if you wish to get essentially the most out of the VENUS E 3.0, there is no such thing as a getting round a wise meter. After all, this ensures that you simply not solely get a strong storage system, but additionally a wise one. This little helper ensures that price drivers corresponding to grid consumption and feed-in are lowered so far as attainable.

With the CT002, this not solely labored reliably, but additionally shortly. The OFF-Grid socket additionally scored effectively within the take a look at. You can use it to attach necessary shoppers that have to be provided with energy within the occasion of an influence failure. As a most output energy of two.5 kW is obtainable, a power-hungry fridge may also be protected right here with none issues.

Marstek Venus-E Gen 3.0 AC TEST: Single-phase as much as 15 kW

One storage unit alone provides a whopping 5.12 okWh of battery capability. If that’s not sufficient, you may add two extra storage items, rising the utmost capability to a very good 15 okWh. And it’s not simply the battery capability that will increase. In this case, the output energy additionally will increase to as much as 7.5 kW. But in concept, much more is feasible. Three storage items could be distributed throughout every of the three phases, leading to a complete of 9 storage items. In this situation, we’re speaking a few capability of 46 okWh and a most output energy of twenty-two.5 kW. This makes the MARSTEK VENUS E a critical storage system for full-blown PV techniques.

Marstek Venus-E Gen 3.0 AC TEST: Problem with balcony energy vegetation

However, whereas the MARSTEK is appropriate for big PV techniques, the scenario is a little bit completely different for balcony energy vegetation. This is as a result of the legally prescribed feed-in most of 800 W could be simply bypassed through the app. This signifies that issues may come up within the occasion of an inspection. In addition, many customers are presently (as of February 2026) experiencing that connecting the microinverter of a balcony energy plant to the OFF-Grid socket signifies that the 800 W restrict will not be adhered to even when it has been set within the app. This was the expertise of the Smartzone testers, for instance, in their test.

Conclusion

The Marstek Venus-E Gen 3.0 AC impresses within the take a look at as a strong, high-quality and visually interesting AC storage system. Particularly noteworthy are the very simple commissioning, the excessive output energy of as much as 2.5 kW per machine and the large scalability, which additionally makes it fascinating for big, mature PV techniques. In mixture with a wise meter, the Venus-E unfolds its full potential and works reliably, shortly and effectively to maximise self-consumption and reduce grid consumption and feed-in. The Marstek app additionally provides a very good overview, helpful automation and versatile working modes.

The details of criticism stay the excessive weight, which clearly positions the storage unit as a stationary resolution, in addition to minor consolation particulars corresponding to the shortage of a exact show of the charging standing on the machine itself. The Marstek Venus-E can also be presently solely really helpful to a restricted extent for balcony energy vegetation, as there could also be issues in observe with complying with the statutory 800 W restrict. All in all, nevertheless, the Marstek Venus-E Gen 3.0 AC is a really enticing AC storage system with a robust price-performance ratio, fashionable look and excessive efficiency – superb for customers of bigger PV techniques who’re in search of an uncomplicated, versatile and future-proof storage resolution.

€ 1,119.00

Gewöhnlich versandfertig in 9 bis 10 Tagen