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Photovoltaic topics in Germany: Interesting facts for energy projects

BiPV-Header

BiPV im Überblick

BiPV steht für Building Integrated Photovoltaics, auf Deutsch auch gebäudeintegrierte Photovoltaik oder bauwerkintegrierte Photovoltaik genannt. Der Ausdruck beschreibt die direkte Integration von Photovoltaik-Modulen in die

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Solar obligation for real estate - Header

Solar obligation for real estate

Stand: Februar 2026: Eine bundeseinheitliche Solarpflicht für Immobilien existiert in Deutschland weiterhin nicht. Zwar hatte die Bundesregierung eine solche Vereinheitlichung politisch angekündigt, umgesetzt wurde sie

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LFP-Zellen im Vergleich - Header

LFP-Zellen im Vergleich

Die rasante technische Weiterentwicklung von LFP-Zellen (Lithium-Eisenphosphat) seit Anfang der 2020er Jahre machen sie äußerst interessant für den Energiespeicher-Markt. Batteriespeichersysteme (BESS) und PV-Integration in der

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Mieterstrommodell-Header

Das Mieterstrommodell

Im engeren Sinne existiert in Deutschland nur ein Mieterstrommodell. Es ist ein Konzept zur direkten Versorgung von Mietern in Gewerbeimmobilien oder Mehrfamilienhäusern mit grünem Strom

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dynamische-netzentgelte

Dynamic grid charges

Die Energiewende verändert die Struktur der Stromnetze grundlegend. Mit dem Ausbau erneuerbarer Erzeugung, dem Hochlauf der Elektromobilität und der Elektrifizierung industrieller Prozesse steigt die Zahl

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Cable-Pooling-Header

Cable Pooling für effiziente Netzauslastung

Cable Pooling beschreibt das gezielte Zusammenlegen mehrerer Stromerzeugungsanlagen (z.B. Wind, PV, Speicher) an einem gemeinsamen Netzverknüpfungspunkt. Das zentrale Ziel: Die vorhandene Netzanschlusskapazität wird besser ausgelastet,

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Schwarzstart durch Batteriespeicher

Schwarzstart durch Batteriespeicher

Ein Schwarzstart durch Batteriespeicher bezeichnet die Fähigkeit eines Batteriespeichersystems, ein Stromnetz oder ein Teilnetz nach einem vollständigen Stromausfall – also ohne externe Stromversorgung – eigenständig

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EEG options for large-scale storage

EEG options for large-scale storage

Solar Package I has created new EEG options for large-scale storage systems by relaxing the previous storage-related exclusivity principle. This principle had existed since the early days of the EEG and

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Surge protection for PV systems

Surge protection for PV systems

Effective surge protection for PV systems not only guarantees the long-term operation and value retention of the system, but also makes a significant contribution to operational safety. Whether through

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BEHG-Trade-Electricity-Exchange-Leipzig

BEHG trading with CO₂ certificates

The Fuel Emissions Trading Act (BEHG) is part of the national emissions trading system (nEHS) in Germany, which has been in force since January 2021. BEHG trading regulates the CO₂ pricing of fossil fuels.

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EU Buildings Directive header

The EU Buildings Directive

The EU Buildings Directive, also known as the Directive on Energy Performance of Buildings (EPBD), aims to improve the energy efficiency of buildings in the European Union

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Photovoltaics-as-EPC header

Photovoltaics as EPC

Engineering, Procurement and Construction actually describes a common type of project management in the construction industry. However, the term is also increasingly being used in the implementation of

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Solar roof rental vs. contracting

Solar roof rental vs. contracting

The potential of roof surfaces for the installation of solar systems on commercial properties is considerable. Companies that do not wish to invest in a PV system themselves are faced with the

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ESG-compliant asset management company

ESG-compliant assets for a KAG

A capital investment company (KAG) faces the challenge of making its real estate portfolio more sustainable. ESG-compliant assets for a KAG are becoming increasingly important and the focus is

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Tilt angle for solar modules

Tilt angle for solar modules

The tilt angle for solar modules is one of the decisive variables for the efficiency of photovoltaic systems. The energy yield can be maximized by setting the tilt angle correctly.

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heating-with-photovoltaics-header

Heating with photovoltaics

The use of renewable energies is a central component of the global energy transition to decarbonize the economy. In this context, heating with photovoltaics is becoming increasingly important for companies.

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Repowering-of-PV-systems header

Repowering of PV systems

When repowering PV systems, older photovoltaic systems are upgraded with modern, more powerful components in order to increase yield and efficiency. Measures such as the

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Plant certificate header

The plant certificate

Commercial photovoltaic systems in certain power ranges require a system certificate to ensure the stability and safety of the electricity grid. In Germany, the Ordinance on the Verification of Electrotechnical Characteristics

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energy-concepts-for-companies

Successful energy concepts for companies

With rising energy costs and growing pressure to protect the climate, the development of sustainable energy concepts is becoming increasingly important for companies. A well thought-out energy concept can not only contribute to

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Battery storage solution

Development of battery storage revenues

Since 2020, battery storage revenues in the German energy market have developed positively and increased continuously, which is attributable to various influencing factors and market trends. This positive

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7,000-hour rule header

The 7,000-hour rule

Under the 7,000-hour rule, large consumers of electricity in Germany are entitled to individual grid fees if their electricity consumption is consistent, resulting in discounts of up to 90 %.

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Reactive current for PV systems Header

Reactive current for PV systems

Reactive current occurs in PV systems as soon as the inverters convert the direct current of the solar modules into alternating current. As reactive currents only form in AC or three-phase grids, this

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atypical-network-usage-header

Atypical grid usage

Atypical grid usage describes a special form of grid usage in which a consumer or company organizes its consumption times in such a way that it uses the peak load times in the electricity grid in a different way.

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Band load and band current - Header

Strip load & strip current

The band load describes the constant, continuous demand for electrical power that is always present, while the band current is the constant amount of electricity that is available for the

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NZIA-closed header

NZIA adopted by the EU

On 27.05.2024, the EU Council adopted NZIA, the "Net Zero Industry Act" or "Net Zero Industry Act". The regulation is intended to promote the industrial use of net-zero technologies to achieve

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Environmental Impact Assessment-UVPG

Environmental impact assessment (UVPG)

The environmental impact assessment (EIA) is actually only one component of the legislation on "environmental assessments" of the Federal Ministry for the Environment, Nature Conservation, Nuclear Safety and Consumer Protection (BMVU). Another building block

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Wafers in the photovoltaic header

Wafers in photovoltaics

Wafers are thinly sliced disks, typically made of materials such as silicon, germanium, silicon carbide or other semiconductor materials. They are used in semiconductor manufacturing to produce integrated circuits, microchips

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kVA unit header

The kVA unit in photovoltaics

The abbreviation kVA stands for "kilovolt ampere" and is a unit of measurement for the so-called apparent electrical power. The kVA unit is used in various areas of electrical engineering

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Disconnector for PV systems - Header

Disconnectors for PV systems

There are different types of disconnectors for PV systems. Their use has been required by law since 2006 and they are an important component alongside overvoltage protection

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Obstacles to the CSRD reporting obligation

Obstacles to the CSRD reporting obligation

(Aktualisiert April 2026) Die Corporate Sustainability Reporting Directive (CSRD-Berichtspflicht) stellt Unternehmen durch die hohen Anforderungen an die Berichterstattung über Nachhaltigkeitsthemen vor verschiedene Hürden, da Fehler

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Wiring of PV systems - Header1

Wiring of PV modules

The cabling of PV modules on the DC side of a commercial photovoltaic system must be carefully calculated, planned and implemented. It has a decisive influence on the

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Third-party quantity delimitation - digital meters

Third-party quantity delimitation

The third-party volume delimitation refers to companies that make use of energy privileges and/or produce energy themselves and pass this electricity on to so-called third parties or a final consumer.

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Residual load header

Residual load - what is it?

Residual load is a term used in the energy sector, particularly in the context of electricity supply. It refers to the difference between the actual demand for electricity (consumption) and the available

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GEIG: Charging infrastructure obligation - loading car

Was ist GEIG & wen betrifft es?

(Aktualisiert April 2026) Das Gebäude-Elektromobilitätsinfrastruktur-Gesetz (GEIG) verpflichtet Unternehmen in Deutschland dazu, Ladeinfrastruktur für Elektrofahrzeuge in Gebäuden bereitzustellen. Betroffen sind vor allem: Ziel ist es, den

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Installing insurance-compliant PV systems

Insurance-compliant PV systems

The German Insurance Association (GDV), in cooperation with the German Association of Property Insurers (VdS), has published various guidelines to ensure that insurance-compliant PV systems can be approved.

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Dimensioning factor for inverters - Wiring of the solar modules

The dimensioning factor for inverters

The dimensioning factor for inverters describes the ratio between the maximum direct current (DC) that can be generated by all installed photovoltaic modules and the maximum alternating current (AC) output power of the entire PV system. It

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Solar carports - aerial view

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