Do you already have a solar system or are you thinking about installing one? Congratulations – you've taken the first step towards energy independence. But did you know that with a dynamic electricity tariff, you can get even more out of your system, especially if you have a home battery?

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Many households with solar panels still need to draw part of their electricity from the grid. If you focus on using electricity during times when market prices are particularly low – like at night – you can save smartly.

Solar as a Smart Investment

Investing in a solar system pays off in many ways: it not only reduces electricity costs in the long term, but also increases energy independence. Typically, the investment pays for itself within 9 to 15 years. Over a system’s lifetime of 20 to 30 years, households can save several thousand euros while also increasing the value of their property. Solar energy is therefore not only a contribution to climate protection, but also a smart financial investment.

Self-Consumption: The Foundation of Your Savings

Solar owners know: the more self-generated electricity you consume directly in your home, the better. Self-consumption not only reduces the need to buy electricity from the grid but also yields much greater financial benefits than feed-in tariffs.

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However, achieving high self-consumption isn't always realistic – especially at night, in winter, or during bad weather. That's where your electricity tariff comes into play.

The Dynamic Electricity Price as a Smart Addition

With a dynamic tariff like Ostrom's SimplyDynamic, you pay the current wholesale electricity price every hour (+ taxes and fees). This means you can consciously draw electricity when it’s cheapest (and often greenest) – for example, during periods of strong wind or abundant solar energy in the grid. Or at night, when factories shut down and demand drops.

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👉 Example:

Your solar system generates electricity during the day – but at night, you need to draw power from the grid. With a dynamic tariff and controllable devices (such as a battery or an EV), you can purchase electricity specifically when prices are low. That saves you real money.

Buy Electricity Only When It’s Cheapest

Dynamic electricity prices fluctuate and can sometimes be higher. Typically, there are two price peaks (imagine an “M” shape) – one in the morning when everyone is having breakfast and another in the evening during dinner time. With a solar system and a battery, you can easily avoid both.

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You can avoid the breakfast price peak by automatically charging your battery at low-cost night-time rates and then using that stored energy when prices are high.

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In the evening, it gets even better with nearly the same principle: instead of buying expensive grid power, you use the solar energy you've stored during the day. It doesn’t get cheaper than that!

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And once prices drop again at night, you can relax watching your favorite show, run the dishwasher, or charge your electric car – all at low night rates. It's like getting a "night discount"!

How to Switch to Our Dynamic Tariff

Switching to our dynamic tariff is super simple: you can sign up with Ostrom in just 5 minutes. If you still have an existing contract, we’ll handle the cancellation for you with our free switching service.

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You'll also see whether you can order a Smart Meter through us – and whether you can even get one for free.

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You’ll start in our transparent SimplyFair tariff. Meanwhile, we’ll check if a Smart Meter is installed at your location and if we can access your consumption data. As soon as both are confirmed, we'll automatically switch you to our dynamic tariff at the earliest possible date – giving you maximum flexibility and fair prices.

What Makes Ostrom Special

With Ostrom, you get:

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• 100% green electricity from German solar and wind sources
• Electricity at cost price, with no markups
• A monthly cancellable contract – total flexibility
• Simple management via our app – with support in both German and English
• Intelligent energy management features to optimize your electricity costs

Switch to Ostrom

👉 Get the most out of your solar system – with dynamic electricity pricing, a Smart Meter, and full cost control.

🔌 Switch to Ostrom now