How does feeding solar power back into the public grid work?

The feeding of solar power into the public grid enables households and businesses to economically utilize surplus energy from photovoltaic systems. Unused electricity is automatically fed in, while operators benefit from remuneration under the Renewable Energy Sources Act (EEG). DRBO Greenenergy supports with intelligent systems that optimally combine feed-in, self-consumption, and storage solutions.

How does solar power feed-in work technically?

The feed-in takes place via an inverter that converts direct current from the solar modules into grid-compliant alternating current. Surplus electricity automatically flows into the public grid via a bidirectional meter, with the grid operator measuring consumption and feed-in. Modern DRBO Greenenergy systems integrate energy management that efficiently controls self-consumption and storage.

What are the requirements for feeding into the public grid?

A registered PV system, an approved inverter, a bidirectional meter, and registration in the market master data register are necessary. The grid operator's approval is mandatory. Plug-&-play systems or balcony PV require professional installation. DRBO Greenenergy offers complete sets and micro-inverters that are ready for immediate use.

How is the fed-in solar power remunerated?

The remuneration is based on the EEG and varies according to system size and commissioning date. Currently, small systems up to 10 kWp receive approximately 8–12 cents per kilowatt hour. Self-consumption also reduces electricity costs, as self-generated electricity replaces expensive grid electricity. Storage solutions from DRBO Greenenergy significantly increase self-consumption.

Why is feeding in economically worthwhile?

Feeding in offers a double return: lower electricity costs and feed-in tariffs. This means the investment amortizes faster. Solar power from your own system increases independence from energy suppliers. DRBO Greenenergy advises on funding programs, tax depreciations, and practical solutions for private and business customers.

The feed-in of solar power into the public grid has several advantages. Firstly, users can reduce their electricity costs because they need to purchase less electricity from the energy supplier. Secondly, they receive a feed-in tariff for the fed-in electricity. These two effects mean that the investment in a balcony power plant or a solar system amortizes significantly faster.

Furthermore, self-generated solar power increases independence from external energy suppliers, as a portion of electricity demand is covered directly. DRBO Greenenergy supports both private and business customers in finding suitable funding programs, utilizing tax advantages, and implementing practical solutions. This ensures that systems are operated efficiently and that the investment is economically viable in the long term.

What role does the bidirectional meter play in feed-in?

The bidirectional meter records both fed-in and consumed electricity, precisely determining self-consumption. Modern smart meters offer real-time monitoring and optimize energy management – a function that DRBO Greenenergy integrates into many of its systems.

How can the self-consumption of solar power be optimized?

Self-consumption increases through battery storage, energy management, and time-controlled consumers such as heat pumps or EV charging stations. With storage units like the DRBO Greenenergy SunLit system, surplus electricity is temporarily stored and used later, e.g., in the evenings and at night.

When is a battery energy storage system worthwhile in addition to grid feed-in?

Storage is useful for high self-consumption or rising electricity prices. Economic amortization is often possible within 8–12 years. DRBO Greenenergy offers modular systems that flexibly switch between feed-in and self-sufficiency.

Can every household feed solar power into the grid?

Basically yes, if grid connection and technical requirements are met. Tenants can also feed in with balcony PV and micro-inverters after registration. DRBO Greenenergy provides plug-and-play complete packages for this purpose, ideal for apartments and smaller houses.

What legal guidelines must be observed?

The EEG regulates remuneration and grid connection. VDE Application Rule 4105 defines technical safety standards for PV inverters. Operators must register their system in the market master data register. DRBO Greenenergy recommends qualified specialist partners for connection, grid security, and warranty.

The EEG (Renewable Energy Sources Act) stipulates how solar system operators are remunerated for electricity fed in and how the grid connection is regulated. For electricity systems to be operated safely and efficiently, there are technical standards, as described in VDE Application Rule 4105 for PV inverters. These rules ensure that systems are stably connected to the power grid and pose no danger to the grid or users.

In addition, operators must register their systems in the Market Master Data Register so that funding and feed-in tariffs can be correctly accounted for. DRBO Greenenergy recommends having installation and connection carried out by qualified specialist partners to ensure grid security and secure warranty claims. This ensures that solar systems operate reliably and are legally and technically correctly operated.

DRBO Greenenergy Expert Opinions

"The feed-in of solar power is a crucial step towards the decentralized energy transition. Our systems combine efficiency, sustainability, and ease of use. With DRBO Greenenergy SunLit storage units, we help private customers and businesses to use energy efficiently and maximize self-consumption."
– DRBO Greenenergy Expert Team

Conclusion: Feed-in as a Key to the Energy Transition

The feed-in of solar power into the grid makes photovoltaics ecologically and financially viable. Self-consumption, feed-in tariffs, and storage solutions form a sustainable basis. With the systems and advice from DRBO Greenenergy, households and businesses can efficiently start into a green, independent energy supply.

Frequently Asked Questions

How much solar power can I feed in?
Up to 100% of the generated electricity, depending on system size and grid connection. Registration with the grid operator is required.

Are there tax advantages for feed-in?
Small systems up to 30 kWp are income tax-exempt since 2023. Purchase and installation are not subject to VAT.

Can feed-in occur during a power outage?
No, grid feed-in is interrupted for safety reasons. Storage systems can provide emergency power.

Does the electricity meter need to be replaced?
Yes, a bidirectional meter records feed-in and consumption separately.

How can I increase self-consumption?
Through battery storage, intelligent energy management, and time-controlled use.

How does feeding solar power into the public grid work?

Feeding solar power into the public grid is done via an inverter that converts the direct current from the photovoltaic system into alternating current. This electricity is then fed into the grid via a meter. Under the EEG (Renewable Energy Sources Act), owners of solar systems receive a feed-in tariff for the electricity fed in.

What is the feed-in tariff for solar power?

The feed-in tariff guarantees that operators of solar systems receive a fixed remuneration for the fed-in electricity for 20 years. This is stipulated within the EEG and helps to make investments in solar energy economically viable. The amount of the remuneration depends on the system size and the date of commissioning.

How does photovoltaics work?

Photovoltaic systems convert sunlight into electricity. Solar cells consist of semiconductor materials that release electrons when exposed to sunlight, thereby generating electricity. This direct current is converted into alternating current by an inverter, which is then fed into the power grid or used in the household. Solar systems are a sustainable and cost-saving solution for electricity generation.

Why do homeowners switch off their solar systems at midday?

Homeowners on the Dutch North Sea coast switch off their solar systems at midday to avoid overproduction of electricity. During this time, the systems often generate more electricity than is needed. Switching off protects the solar system from overload and ensures that electricity consumption is regulated more efficiently.

How does feeding solar power into the public grid work?

Feeding solar power works by converting the direct current generated by solar modules into alternating current via an inverter. The surplus electricity not consumed in the household then flows into the public grid. A bidirectional meter measures both consumed and fed-in electricity, and the operator receives remuneration according to the EEG.

What is a bidirectional meter and why is it needed?

A bidirectional meter is a special meter that measures both electricity consumption from the grid and the amount of electricity fed into the public grid. It is required to correctly record feed-in and calculate remuneration for fed-in solar power according to the provisions of the Renewable Energy Sources Act (EEG).

What requirements must be met for feeding in solar power?

For feeding solar power into the public grid, the photovoltaic system must be registered and approved by the grid operator. In addition, a bidirectional meter must be installed to measure the fed-in electricity. Registration in the market master data register of the Federal Network Agency is also required after commissioning.

What happens to solar power that is not directly consumed?

Unconsumed solar power is fed into the public grid via the inverter. This surplus electricity is remunerated by the grid operator, providing homeowners with a source of income. An intelligent energy management system can also increase self-consumption to use more electricity themselves.

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