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Efficient utilization of photovoltaic systems after subsidies expire
Continuing operations of PV systems without government support
Attention early adopters: If you installed a photovoltaic system with a lucrative subsidy in the early 2000s, you can still be a pioneer today with photovoltaic heating.
Continue benefiting from your solar power even after the subsidy
Is your photovoltaic system no longer subsidized? Here, you'll find out how you can continue to profitably use your solar power and actively shape the energy and heat transition.
More and more residential photovoltaic system are falling out of very attractive subsidies, which ensured for instance guaranteed feed-in tariffs. What can you do as the owner of a PV system in times of low feed-in tariffs and decreasing subsidies to continue benefiting from your photovoltaic system?
The many benefits
Utilize photovoltaic power at home instead of feeding it into the grid
- Photovoltaic heating saves operating costs
- Linear control for maximum self-consumption
- Protection against rising electricity prices
- Conserving resources and promoting the energy transition
What options do owners of PV systems that fall out of the EEG subsidy have?
5 options for continuing operations of an Ü20 System
Direct marketing via energy community
One option is to join or form an energy community. This can be beneficial in areas where few neighbors have photovoltaic systems, though it can be quite bureaucratic. The search for buyers and the revenue from direct marketing only make sense for larger systems.
Repowering the old photovoltaic system
Repowering involves replacing some components or adding further optimizations (e.g., purchasing a battery storage system, replacing an inverter). This incurs additional costs, which may not be worth it over the lifespan of the photovoltaic modules. If the modules themselves are replaced, the financial burden is even higher, but the system is set for long-term operation. However, there are simpler and more cost-effective ways to continue operating your photovoltaic system effectively.
Self-consumption by adjusting behavior
Switching a system designed for high feed-in rates to self-consumption can be achieved with minimal one-time installation costs. Adjusting user behavior—when to run the dishwasher, washing machine, or dryer—may slightly increase self-consumption, but typically, no more than about one-third of the photovoltaic power is used. Consistent adjustment is often inconvenient or impossible without an additional energy management system.
Photovoltaic heating maximizes self-consumption
Is there an easier way to increase self-consumption? Yes: generating heat from photovoltaic power. This is simple and doesn't require behavior adjustment, maintaining high comfort levels. With a linearly controlled heating rod, excess electricity—when switching a PV system to self-consumption—can be used for heating purposes in addition to household consumption. This minimal investment can increase self-consumption from about 30% to up to 85%.
Benefits of storing photovoltaic power as heat
Every kWh used saves CO2 by avoiding fossil energy
A lucrative way to continue operating an existing PV system profitably for longer
If the feed-in tariff is lower than heating costs, significant savings can be achieved quickly
Heating with photovoltaic power reduces the load on the public grid through decentralized use
Self-consumption is massively increased
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How to maximize the use of photovoltaic power?
Our products for heat from photovoltaic power:
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How have others implemented it?
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La maison individuelle impressionne par sa construction écologique et sa technologie de chauffage innovante.
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Le fabricant suisse de logiciels Solar Manager contrôle l'AC•THOR 9s dans une maison individuelle dans le canton d'Aargau.
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Optimisez votre énergie photovoltaïque grâce à la compatibilité des systèmes : découvrez comment cette maison y est parvenue.
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my-PV products help you to use your self-generated photovoltaic power for your own needs without any detours. You can find the right source of supply here:
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In addition to our products, with our data cloud you can always keep an eye on your heat generation. The my-PV Cloud allows you to track your ecological and low-cost heat generation – in real time.
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