Maximise solar power yield with battery storage

Producing masses of your own solar power on a sunny day, but having to feed it into the grid due to a lack of self-consumption? And at financially unattractive feed-in tariffs?

In the world of solar energy, battery storage is a matter of course alongside other energy consumers. If you do without battery storage, you risk not utilising the full potential of solar energy.

If correctly dimensioned, a battery storage system can make a significant contribution to the added value of the system, but what should you look out for?

Why a battery storage system?

How do you achieve independence from the power grid?

With a battery storage system, you can store the electricity generated by your photovoltaic system and use it when needed. This makes you less dependent on the public power supply and allows you to easily bridge power outages.

How can you maximise your own consumption?

With a battery storage system, you can increase the self-consumption of your self-generated electricity. Surplus energy produced during the day is stored and can be used at night or on cloudy days. This allows you to significantly reduce your electricity bill.

What battery technologies are available?

Lithium-ion batteries

Lithium-ion batteries are the most commonly used batteries in battery storage systems. They are efficient, durable and low-maintenance. These batteries are ideal for use in photovoltaic systems.

Lead-acid batteries

Lead-acid batteries are cheaper, but less efficient and have a shorter service life than lithium-ion batteries. They are more suitable for smaller systems with low energy requirements.

Other battery technologies

Sodium-ion (salt), redox flow, nickel-iron (NiFe), LiFePO4 (lithium iron phosphate) batteries are other technologies that can be found.

To summarise, it can be said that in many cases lithium-ion batteries are used as electricity storage systems in buildings. This is partly due to the fact that this technology is also produced in large quantities in the electromobility sector and partly due to the numerous advantages such as high energy density, fast charging times and long service life.

However, the choice of suitable technology often depends on the specific requirements and the available budget.

Energy conversion paths

AC-coupled systems

In an AC-coupled system, the battery system is coupled to the AC grid with its own battery inverter; charging and discharging takes place directly via this separate component.

DC-coupled systems

Hybrid inverters are used here in conjunction with photovoltaics. Energy is stored directly via the DC path without conversion.

Installation and maintenance of battery storage systems

Professional installation required

Die Installation eines Batteriespeichersystems erfordert Fachwissen und sollte von einem zertifizierten Fachmann durchgeführt werden, um eine einwandfreie Funktion zu gewährleisten.

Maintenance of a battery storage system

Battery storage systems require regular maintenance to ensure optimum performance. This includes checking the battery condition and replacing battery cells if necessary.

Financial incentives

Funding programmes and subsidies

In some regions, there are subsidy programmes that provide financial support for the purchase and installation of battery storage systems. Find out which programmes are available in your region.

Tax incentives for the purchase of a battery storage system

Depending on the region, it may also be possible to deduct the investment in a battery storage system from tax. This should be checked depending on the canton.

Conclusion on battery storage systems

A battery storage system in combination with a photovoltaic system is a sensible investment in a sustainable future if it is correctly dimensioned. It enables you to use clean energy efficiently, reduce your electricity bill and become less dependent on the public power supply. All the more reason to recommend a battery storage system as a supplement to an energy management system.

Questions about our offer?
Please contact Ronny Kleinhans.
+41 52 770 07 24

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Lademanagement-Konzept für GEWOBAG

Immer mehr Menschen kaufen sich ein Elektroauto. Das stellt auch Verwaltungen vor eine Herausforderung: Es müssen sichere und skalierbare Ladeinfrastrukturen installiert und Ladestromkosten einfach und fair verrechnet werden. Mit unserer Lösung ist die GEWOBAG auf diese Entwicklung vorbereitet.

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