Energy

Why a Solar System Is Worthwhile - And How You Can Save 1000 € Instantly

By 

David Wölfle

1.5.2025

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6
 min

Prices are rising, climate change is advancing – and many people are asking themselves: How can I save money and do something good for the environment at the same time?

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The answer is simple: with a solar system. In this article, we’ll show you why a photovoltaic system is not only environmentally sound but also a truly smart financial investment. You’ll also learn how, as an Ostrom customer, you can get even more out of your system with a battery storage and our dynamic tariff – and how you can secure a 1000 € discount on a new PV system.

A Solar System Is a Smart Investment

Installing a solar system on your roof is more than just a contribution to climate protection – it’s an investment in your future. That’s because electricity from your own roof costs only a fraction of what you would otherwise pay to a utility company.

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Typically, the initial investment pays off in 9 to 15 years. But since modern systems last 25 years or more, you benefit from long-term, low-cost electricity.

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In addition, the value of your property increases. Homes with solar systems are especially attractive to buyers. Plus: Government subsidies help reduce the upfront costs.

Top 3 Reasons Why You Save Money With Solar

1. Self-consumption instead of expensive grid electricity: You use the electricity you generate yourself – and save real money every month. While grid electricity costs 30 to 40 cents per kilowatt hour, your solar electricity costs only about 10 cents.

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2. Earn feed-in compensation: Excess electricity you don’t use is fed into the public grid – and you get paid for it. That makes your system even more profitable.

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3. Independence from electricity price fluctuations: With a solar system and a storage unit, you become more independent from rising electricity prices. You produce your own power – reliably and predictably.

Is a Battery Storage Worth It?

Many people ask: Should I get a battery storage unit right away? The answer is: In many cases, yes.

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A battery lets you use your solar electricity even when the sun isn’t shining – like in the evening or at night. This significantly increases your self-consumption rate. Instead of using only about 30 % of your own electricity, a battery can boost that up to 70 %.

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The storage unit becomes especially attractive when combined with a dynamic electricity tariff!

Save Even More With a Dynamic Electricity Tariff

A dynamic electricity tariff like Ostrom’s is based on the hourly changing stock market price for electricity. This means: If you adjust your usage flexibly, you can take advantage of low-cost hours – for example, when charging your home battery or EV.

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If you have a storage unit, you can charge it with low-cost grid electricity – and use it later when prices are higher. This allows you to use electricity especially efficiently and save even more.

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The combination of solar system, battery, and dynamic tariff is the smart way to minimize your electricity costs.

Exclusive Ostrom Offer: 1000 € Off Your New Solar System From Otovo

You’re convinced and ready to get started? Then we’ve got great news: Together with Otovo, we’re offering you an exclusive 1000 € discount on your new solar system.

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The 1000 € discount is exclusively available to Ostrom customers! Not yet an Ostrom customer? Then switch to us now and request a free quote for your solar system from Otovo in the Ostrom App.

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Otovo handles the entire process for you – from planning to installation. You can also add a battery and wallbox if you wish.

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🔗 Switch now and secure your 1000 € discount in the Ostrom App!

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