Hot water with photovoltaics

Use PV surplus and save money

Photovoltaic systems are true all-rounders, as the solar power generated can be used flexibly anywhere in the household. This also applies to heating water that can be used for showering or heating. In this way, you can use a lot of your own solar power and save even more energy costs.

Advantages of hot water with photovoltaics

☀ Use more solar power
Instead of feeding surplus solar power into the grid, use it yourself to produce hot water. You therefore reduce your energy costs.

☀ Protect the heating system
You extend the service life of your heating system because you can switch it off completely in summer. This also saves you money.

☀ Be independent and protect the climate
Make use of your own clean energy supply.

Use more of your own solar energy

The electricity that you produce on your own roof is far cheaper than electricity from the grid. In order to permanently reduce energy costs, you should therefore use as much self-generated solar power as possible. Depending on the size of the system, an average household uses 20-40% of its own solar power.

By using surplus solar power for hot water production or heating, you feed less electricity into the grid. This allows you to increase your degree of self-consumption to over 60%. You give away less of your own PV power, have to purchase less energy from the public grid and save money.

PV electricity for air conditioning

Incidentally, it is not just heating, but also cooling with solar power that makes ecological and financial sense. If your air conditioning system is running at full capacity on hot and sunny days, your PV system produces a particularly large quantity of electricity, which can be used to operate the air conditioning system.

Protect the heating system with solar power

Whether you heat your home with a heat pump, a pellet heating system, with oil or gas - a photovoltaic system can support the heating system. Whenever there is a surplus of solar power, it can be used to generate heat.

This option even allows you to switch off your heating system completely during the summer months and you do not have to activate the entire heating system for small amounts of hot water. This not only reduces your energy costs, but also extends the service life of your heating system.

Heat pump & solar energy - the perfect combination

The perfect combination when it comes to heat from solar energy is a heat pump and our Fronius Ohmpilot:
The heat pump is highly efficient and can generate up to 5 times the amount of heat from an available amount of electricity. The fast Fronius Ohmpilot consumption regulator can in turn control the heating element in your boiler or buffer storage tank with very small quantities of electricity. In this way, the device uses surplus solar power to keep the temperature in the boiler constantly high. This means that the heat pump does not have to switch on and off as frequently and is therefore protected over the long term.

How a heating solution with photovoltaics works In this way the energy from your own roof can be used throughout the household.

Solar modules With home installations, solar modules are usually mounted on the roof. Sunlight hits solar cells, where solar energy is converted into electrical energy.

1

Inverter The heart and brain of every PV system. The inverter converts the direct current generated into alternating current that can be used in the household. The inverter also optimises the yield, controls energy flows and checks the function of the PV system.

2

Fronius Smart Meter A Smart Meter is an intelligent electricity meter. Fitting the Fronius Smart Meter allows you to optimise energy management and thus self-consumption.

3

Fronius Ohmpilot The Fronius Ohmpilot switches on heat producers if there is surplus solar energy available, such as a heating element in the boiler or infrared panels. This ensures that you use as much self-generated electricity as possible in the household.

4

1

Solar modules

With home installations, solar modules are usually mounted on the roof. Sunlight hits solar cells, where solar energy is converted into electrical energy.

2

Inverter

The heart and brain of every PV system. The inverter converts the direct current generated into alternating current that can be used in the household. The inverter also optimises the yield, controls energy flows and checks the function of the PV system.

3

Fronius Smart Meter

A Smart Meter is an intelligent electricity meter. Fitting the Fronius Smart Meter allows you to optimise energy management and thus self-consumption.

4

Fronius Ohmpilot

The Fronius Ohmpilot switches on heat producers if there is surplus solar energy available, such as a heating element in the boiler or infrared panels. This ensures that you use as much self-generated electricity as possible in the household.

Photovoltaics Solar modules and an inverter are the basis for a sustainable energy solution. In this way you can produce electricity for your household on your own roof.

1

... with storage unit By expanding your PV system with a storage unit, you can use the electricity you generate yourself even when the sun is not shining.

2

... with e-mobility By also charging your electric car with solar power from your own roof, you not only power your car with green electricity, but you also do not need to pay for electricity from the grid.

3

... with water heating solution Electricity from your PV system can also be used to heat water, e.g. for showering or heating, so your PV system will pay for itself even faster.

4

1

Photovoltaics

Solar modules and an inverter are the basis for a sustainable energy solution. In this way you can produce electricity for your household on your own roof.

2

... with storage unit

By expanding your PV system with a storage unit, you can use the electricity you generate yourself even when the sun is not shining.

3

... with e-mobility

By also charging your electric car with solar power from your own roof, you not only power your car with green electricity, but you also do not need to pay for electricity from the grid.

4

... with water heating solution

Electricity from your PV system can also be used to heat water, e.g. for showering or heating, so your PV system will pay for itself even faster.

Keep an eye on your photovoltaic system at all times

With the free Fronius Solar.web monitoring tool, you can keep an eye on your energy yield and consumption at all times and get the most out of your photovoltaic system.

Ensure functionality
Shorten the payback period
Expose energy guzzlers
Analyse and optimise energy consumption
Keep the system up-to-date
Save more money with individual extensions
Extend warranty free of charge

More about system monitoring

Save by heating water with solar power

“Until a few years ago, we used the heating system only to produce hot water from April to October. However, we can also do this with solar power and switch off the heating system completely during the summer months.”

Stefan, system owner

Read experience report

High quality, worthwhile investment

Smart technology
Through the use of intelligent inverters and the Ohmpilot, Fronius offers energy-efficient hot water solutions.
75 years of experience
More than seven decades ago, Günter Fronius founded the family-owned enterprise. Now the team is made up of 5,000+ people, and together they are driving forward the energy revolution.
Made in Austria
Fronius quality has always been produced in Austria. Sustainable production is particularly important to us.
Strong partners
A Fronius partner near you – trained & certified by us – is available to help you with advice and support for your personal energy revolution.

A photovoltaic system generates green, cost-effective electricity. In order to be able to use as much of the self-generated solar energy as possible, a well-designed photovoltaic system and clever energy management are required.

Fronius offers you both. On the one hand, Fronius Solar.web is a clearly structured online tool that helps you to understand and optimise your energy flows.

On the other, you benefit from our large network of well-trained, certified partner installers.

Our Fronius System Partners offer you individual and expert advice and continue to be there for you even after your PV system has been installed.

The current page does not exist in the target language.

Solar Energy

Hot Water Produced with Photovoltaics