What is zero export for balcony power plants?

Zero feed-in for balcony power plants means that the generated solar power is consumed directly in the household, without being fed into the public grid. This maximizes self-consumption and helps save energy costs. Especially in conjunction with storage units like those from DRBO Greenenergy, electricity consumption can rise to over 90 percent of self-sufficiency. (58 words)

What exactly does zero feed-in mean?

Zero feed-in means that no solar power flows into the public grid. The inverter precisely regulates the solar system's output to match the current electricity consumption in the household. No surpluses are generated, so no electricity is wasted and no remuneration is received from the grid. This system is particularly suitable for tenants who want to reduce their energy costs without getting into conflicts with grid operators.

The technology is based on a smart metering system that records electricity consumption in real time. The inverter then adjusts the generated output of the solar system to precisely meet the household's electricity demand. With storage units like those from DRBO Greenenergy, efficiency can be further increased by storing surplus electricity and retrieving it when needed.

Is zero feed-in allowed for balcony power plants?

Yes, zero feed-in is fully permitted in Germany. Small systems with an output of up to 800 watts generally do not require registration with grid operators, as long as no electricity surpluses are fed into the grid. This regulation also applies to rental properties, making it an attractive option for tenants.

For larger systems that generate more than 800 watts, approval from the grid operator is required. The VDE standards and the Renewable Energy Sources Act (EEG) promote the use of self-generated electricity and enable households to benefit from this technology without additional bureaucratic hurdles.

How does zero feed-in work technically?

Zero feed-in is based on dynamic power regulation by the inverter. A current sensor continuously measures household consumption, and the inverter immediately adjusts the solar system's output. If consumption decreases, the solar system's output is automatically reduced to provide only the necessary energy.

Modern inverters like DRBO Greenenergy's Deye models are specially designed for this technology and enable precise control. In conjunction with an energy storage unit like DRBO Greenenergy's SunLit, surplus electricity is stored and can be used at a later time, further maximizing self-consumption.

What are the requirements for zero feed-in?

For zero feed-in installation, you need a controllable inverter, a current sensor, and an app control to monitor and manage the system. Not all balcony power plants are suitable for this, so it's important to check the inverter for zero-feed-in compatibility.

DRBO Greenenergy offers plug-and-play kits that include all necessary components, including a pre-installed current sensor and compatible inverters. If you want to integrate storage, DRBO Greenenergy offers SunLit options that further improve zero feed-in efficiency and help store energy for later use.

Retrofit Checklist:

• Update inverter firmware for Zero-Feed-In

• Calibrate current sensor

• Pair app with Home Assistant

When is zero feed-in worthwhile?

Zero feed-in is particularly worthwhile when self-consumption is high and feed-in tariffs are low. Especially for households with high energy consumption – for example, through the use of electrical appliances, electric cars, or heat pumps – zero feed-in can bring significant savings. If your PV system operates with an output of 800 watts, you can save up to 250 euros annually through zero feed-in.

Thanks to DRBO Greenenergy's storage options, you can also use the generated solar power during nighttime hours, which can increase your self-consumption to up to 95 percent, significantly shortening the system's amortization period.

How do I set up zero feed-in?

Setting up zero feed-in involves a few steps: First, you install the current sensor at the meter and then connect the inverter to your Wi-Fi. Afterwards, you need to activate the Zero-Feed-In function in the app. The entire process usually takes only an hour.

It is important to test the output at zero watts when consumers are switched off to ensure that no electricity is fed into the grid. DRBO Greenenergy offers detailed instructions and videos to help you with the installation.

Do I need a storage unit for zero feed-in?

A storage unit is optional, but it increases the solar system's self-sufficiency to up to 99 percent. Without storage, surplus electricity is not stored and is lost, which can reduce the overall performance of zero feed-in by up to 20 percent. However, with a storage unit like DRBO Greenenergy's SunLit, you can store energy for later use and thus access self-generated electricity at night or on cloudy days.

DRBO Greenenergy Expert Opinions

"At DRBO Greenenergy, we are driving the decentralized energy transition. Our balcony power plants with zero feed-in and SunLit storage units maximize your self-consumption without grid feed-in. Ideal for tenants: plug-and-play, VDE-certified, and with Deye inverters. Customers save up to 80 percent on electricity costs. Our expertise from B2B deliveries to DIY stores guarantees quality and support."
– DRBO Greenenergy Expert Team

What are the alternatives to zero feed-in?

As an alternative to zero feed-in, there is the option of full feed-in with remuneration or direct use of storage. Full feed-in offers a small remuneration of about 8 cents per kWh, but it is primarily useful for larger PV systems and rooftop systems. If you work with a smart home system like Home Assistant, you can prioritize battery charging and feed the rest into the grid.

DRBO Greenenergy recommends hybrid models that combine the advantages of both zero feed-in and full feed-in, thus offering a flexible and efficient solution.

Conclusion: Maximize Your Solar Yield

Zero feed-in is an extremely efficient way to directly consume the generated solar power in the household and reduce energy costs. Combined with a DRBO Greenenergy storage unit, such as the SunLit, you can increase your self-consumption to almost 100 percent and thus optimally utilize the benefits of solar energy.

Recommendations for action:

• Check the inverter for Zero-Feed-In compatibility

• Supplement your system with a SunLit storage unit

• Contact DRBO Greenenergy for personalized advice

FAQs

Can I retrofit zero feed-in?

Yes, if you use a compatible inverter like Deye, you can easily retrofit zero feed-in. DRBO Greenenergy offers special retrofit kits.

How much do I save with zero feed-in?

With an 800-watt system, you can save up to 300 euros annually on electricity costs by increasing self-consumption.

Is installation DIY feasible?

Yes, with the right knowledge, you can perform the installation yourself. Instructions and support are provided by DRBO Greenenergy.

Does zero feed-in work in winter?

Yes, zero feed-in also works in winter, but the amount of electricity generated is reduced due to shorter days. A storage unit can help cover consumption in this case.

Which storage unit is best suited?

DRBO Greenenergy's SunLit storage unit is scalable and ideally suited for zero feed-in.