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Using dynamic electricity tariffs for heat – with Spotty
The greatest advantage of dynamic electricity tariffs lies in the ability to control large energy consumers – such as an electric car or a heat pump. But (almost) every household also has another major energy consumer that’s often forgotten and has significant storage capacity: domestic hot water production (via a hot water or buffer tank).
For several months now, we’ve been in contact with Spotty, a provider of dynamic electricity tariffs. Spotty offers electricity at market prices to private and business customers as well as farmers throughout Austria. On the other side, my-PV, as a partner, is the expert in heat generation using solar electricity and develops and manufactures solutions for this purpose – including linearly controlled PV immersion heaters as well as heating elements that are optimized for dynamic tariffs. All our solutions are developed and produced at our site in Neuzeug, Upper Austria, and we offer two product variants.
Cost-optimized heating with your own PV system
Anyone with a PV system knows the challenge of surplus usage and low self-consumption. This is where PV heating elements (AC ELWA 2) and Photovoltaic Power Managers (AC•THOR & AC•THOR 9s) come into play. They direct the available surplus energy continuously into water heating or space heating support. This ensures maximum use of your PV power at home.
Especially during times of negative market prices and surplus PV generation, heat production using solar electricity becomes twice as profitable: you avoid feed-in charges and reduce the operating costs of heat generation.
On days when PV production is insufficient, my-PV DTO can be used to top up heating – fully automatically and at the cheapest times of day according to the electricity exchange. This is combined with accurate PV forecasts to prevent unnecessary grid consumption for heat generation.
Cost-optimized heating without a PV system
With the HEA•THOR IoT, a networked heating element for dynamic electricity tariffs, my-PV offers a solution for water heating even without a photovoltaic system. The heater is scheduled for release in Q3 2025 and can be integrated into a boiler or buffer tank. These devices fetch the most affordable electricity rates via the internet and fill the storage tank easily and cost-effectively – all fully automated via the my-PV Cloud.
Focusing on heat generation to take full advantage of dynamic electricity tariffs makes perfect sense. Get the most out of your flexible electricity tariff!
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Curious about the benefits for you?
Join our joint webinar on 17 September (in German), where we’ll explore all the advantages of both my-PV product lines in combination with a dynamic electricity tariff.
Register now and start benefiting!
If you have any further questions, feel free to contact us via our contact form on the website.
Webinar my-PV / Spotty (in German)
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