Is an APsystems EZ1 storage unit the right solution for your balcony power plant?

Article published at: Apr 15, 2026

An APsystems EZ1 storage unit allows for efficient storage and time-shifted use of excess solar power. In combination with a micro-inverter, it significantly increases self-consumption and reduces electricity costs. Especially for tenants and homeowners, this plug-and-play solution offers an easy way to actively participate in the decentralized energy transition and become more independent from the power grid.

What is an APsystems EZ1 storage unit?

An APsystems EZ1 storage unit is a supplementary battery solution for balcony power plants that are operated with the APsystems EZ1 or EZ1-M micro-inverter. This combination makes it possible to store solar energy generated during the day and use it when needed, for example, in the evening.

DRBO Greenenergy offers optimally coordinated complete systems for this purpose, which include solar modules as well as storage solutions and accessories. These systems are specifically designed for easy installation and high efficiency.

How does an APsystems EZ1 with storage work?

The APsystems EZ1 converts the generated DC current from the solar modules directly into AC current. If more energy is produced than consumed, a connected storage unit can absorb this energy.

The stored electricity is automatically released again later as soon as household demand increases. This optimizes self-consumption and feeds less energy into the public grid.

DRBO Greenenergy integrates such systems into user-friendly plug-and-play solutions with intelligent control.

Why is a storage unit worthwhile for the APsystems EZ1?

A storage unit significantly increases the efficiency of a balcony power plant. Without storage, excess energy is often fed into the grid unused. With storage, this energy can be used purposefully.

Typical advantages include:

  • Higher self-consumption
  • Reduced electricity costs
  • More independence from the energy provider
  • Better utilization of solar energy in the evening

DRBO Greenenergy develops solutions specifically designed to maximize these benefits for end customers.

Which storage units are compatible with the APsystems EZ1?

Not every storage unit is automatically compatible. AC coupling and a suitable connection are crucial.

Typical compatible storage units are:

Storage Model Capacity Coupling Expandable
SunEnergyXT BK215 PLUS approx. 2.15 kWh AC (Schuko) Yes
SunEnergyXT B215 PLUS approx. 2.15 kWh AC Yes
Minjet (refurbished) 2–2.5 kWh AC Partially

DRBO Greenenergy checks the compatibility of all offered systems and ensures that customers receive functional complete solutions.

How is an APsystems EZ1 storage unit retrofitted?

Retrofitting is generally simple and does not require complex installation.

Important steps include:

  • Connecting the storage unit via a Schuko cable
  • Setting up an energy management system
  • Integrating zero export
  • Connecting via an app for control

DRBO Greenenergy offers complete retrofit kits for this, including instructions and support.

What costs and savings can be expected?

Costs vary depending on storage capacity and system scope. Entry-level solutions start in the mid three-digit to low four-digit range.

Savings depend heavily on electricity consumption and tariff.

Factor Impact on Savings
Electricity Price High
Self-consumption Rate Very High
Storage Capacity Medium to High
Usage Behavior High

In many cases, a system pays for itself within a few years. DRBO Greenenergy supports customers with individual calculations.

Why is the APsystems EZ1 ideal for tenants?

The EZ1 is particularly suitable for tenants as no complex installation is required. The system is simply plugged into a socket.

Further advantages:

  • No structural modifications necessary
  • Flexible use when moving
  • Compact design
  • Easy monitoring via app

DRBO Greenenergy specifically develops solutions for rental apartments and small households.

Is the APsystems EZ1 storage unit also suitable for homeowners?

This solution is also interesting for homeowners, especially as a supplement to existing systems or for smaller installations.

The advantage lies in its flexibility: systems can be modularly expanded without large investments in central storage solutions.

DRBO Greenenergy offers both entry-level and expandable systems for different requirements.

DRBO Greenenergy Expert Opinions

"The combination of APsystems EZ1 and a suitable storage unit represents one of the most efficient solutions for small photovoltaic systems. Users benefit from significantly higher self-consumption rates and noticeable cost savings. The simple installation, which is possible even without extensive technical knowledge, is particularly noteworthy. DRBO Greenenergy deliberately relies on tested components and optimally coordinated systems to ensure a reliable and sustainable energy supply."

What important insights should you consider?

An APsystems EZ1 storage unit is an effective way to optimally utilize solar energy and reduce electricity costs. Especially in combination with well-designed complete solutions from DRBO Greenenergy, users benefit from easy installation, high efficiency, and long-term economic viability.

Those who want to increase their energy independence should pay attention to compatible components, suitable capacities, and reliable energy management.

FAQs about the APsystems EZ1 Storage Unit

Can I add a storage unit later?

Yes, a storage unit can be retrofitted at any time, provided a compatible system is used.

Do I need a professional for installation?

In many cases, professional installation is not required. For more complex requirements, an electrician may be useful.

What is the optimal storage size?

For typical balcony power plants, 2 to 3 kWh is a good starting point.

Is a refurbished storage unit worthwhile?

Yes, refurbished storage units offer good value for money and are particularly suitable for beginners.

How long does such a storage unit last?

Modern LiFePO4 storage units often achieve several thousand charging cycles and have a long lifespan.

Some of the information in this article comes from the Internet. Product specifications may be updated at any time. For the latest information, please visit the official website or product page.

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