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The Double Energy System: An Efficient Solution for Hot Water Preparation

This system is a hot water solution that combines the advantages of a heat pump water heater and a photovoltaic system into one. This combination allows for a significant reduction in energy consumption for hot water provision while maximizing the use of sustainable energy sources. It is ideal for your home if energy efficiency and environmental protection are your priorities. It is a forward-looking answer to rising energy costs and ecological responsibility through the intelligent use of solar energy and modern heat pump technology.

Photovoltaic Systems and Energy Management.

Generating electricity from solar energy is highly efficient. A PV system offers a sustainable solution for energy supply by generating eco-friendly photovoltaic power from natural sunlight. In conjunction with a modern energy management system, the use of this electricity is optimized. The generated solar power can be used specifically for hot water production, heating, charging electric cars, or other household uses. Other energy sources can also be easily integrated and utilized, including a heat pump water heater. This uses air as a heat source and can be operated with surplus PV power to provide hot water. This combination also meets the latest legal regulations and enables households and companies to make an active contribution to the energy transition.

How a PV System Works.

1. Sunlight hits solar modules

The modules consist of solar cells, usually made of silicon. As soon as sunlight hits the solar modules, the PV system begins to work. They convert sunlight into electrical energy. This creates direct current (DC), which is known as the photovoltaic effect.

2. Conversion from DC to AC

The direct current is routed from the solar modules to an inverter. The inverter, which converts DC into alternating current (AC), is a central element of the system. AC is the required form of energy for household appliances and other electrical applications.

3. Energy management optimizes energy flow

Modern energy management involves continuous monitoring of power generation and consumption in the building. It is responsible for deciding how the electricity generated by photovoltaics is used. For example, the power can be used directly to operate household appliances, for lighting, or to produce hot water.

4. Using surplus electricity

There are two options when the PV system generates more electricity than is currently needed. Either the surplus power is stored and used at a later time, or it is fed into the public power grid. This feed-in is remunerated, which can generate additional income.

5. Covering remaining demand

Electricity is automatically drawn from the public grid if the generated power is not sufficient to cover the entire energy demand. The energy management system ensures that this transition happens as smoothly and efficiently as possible.

6. Monitoring and optimization

With the help of an integrated monitoring system, it is possible to monitor the system's performance in real time. This allows the homeowner to check at any time how much energy is currently being generated, consumed, stored, or fed into the grid.

Advantages of Photovoltaics

  • Sustainable energy generation: Photovoltaic systems transform sunlight into clean electricity and actively contribute to climate protection as they operate CO2-free.
  • High cost savings: Through self-consumption, households can significantly reduce their electricity bills and protect themselves from rising electricity prices.
  • Attractive subsidies: In Switzerland, you can receive subsidies for the purchase of PV systems. This makes the acquisition even more economically attractive.
  • Long service life and low maintenance: Modern solar modules have a lifespan of 20 to 30 years and require only a minimum of maintenance and care.
  • Increased property value: Installing a photovoltaic system not only makes a building more energy-efficient but also increases its attractiveness on the real estate market.

Heat Pump Water Heaters and Hot Water Preparation

Heat pump water heaters offer an energy-efficient and environmentally friendly solution for hot water preparation. Using a fraction of the energy of conventional electric boilers, they use ambient heat from the air to heat the domestic water. In combination with a photovoltaic system, the efficiency of the system can be increased even further. Not only energy consumption but also electricity costs can be significantly reduced, as the heat pump water heater can be operated with self-generated PV power.

How a PV System Works.

1. Extracting heat from the air

In a heat pump water heater, heat is extracted from the ambient air and used to heat the domestic water. The air is drawn in using a fan, and the energy it contains is absorbed using a refrigerant. The refrigerant is designed to evaporate even at low temperatures.

2. Compression and temperature increase

The evaporated refrigerant is compressed in a compressor. This process causes the temperature of the refrigerant to rise sharply. The heat gained is then transferred to the water in the tank via a heat exchanger, heating the domestic water.

3. Energy consumption and power supply

Electricity is needed to operate the compressor, although the energy requirement is very low compared to a conventional electric boiler. If the heat pump water heater is operated with electricity from photovoltaics, the energy for this process can be provided almost free of charge, further reducing costs.

4. Storing hot water

To ensure that heated water is available to the household at all times, it is stored. Depending on requirements, an installer can also use the heat pump water heater in combination with other energy sources for a constant supply of hot water.

Advantages of a Heat Pump Water Heater

  • High energy efficiency: Heat pump water heaters reduce electricity consumption for hot water preparation by up to 80% by using ambient heat from the air.
  • Eco-friendly hot water preparation: By using renewable energy sources, operation is almost CO2-neutral, thus making an active contribution to environmental protection.
  • Combination with photovoltaic systems: The heat pump water heater can use surplus solar power, further lowering energy costs.
  • Flexibility in installation and operation: Whether in a new build or an existing building, heat pump water heaters are easy to integrate and compatible with existing heating systems.
  • Durability and cost-effectiveness: Heat pump water heaters offer a long-term and cost-effective option for hot water preparation thanks to their robust technology and low operating costs.

Smart Home Monitoring and Energy Efficiency

Smart home systems are a revolution in the way energy is used in modern households. Through the use of intelligent technologies and automated processes, they are not only able to reduce energy consumption but also make it more sustainable. This method involves monitoring all energy flows in the household in real time. It analyzes energy demand with the goal of efficiently using energy generated from photovoltaic systems. For example, surplus PV power can be used specifically for hot water preparation with a heat pump water heater or for operating other household appliances.

Intelligent control can maximize self-consumption and minimize the need for grid power. Furthermore, the system is able to automatically adjust the heating, cooling, and lighting systems in the house to the current energy demand and weather conditions. This ensures that heating, cooling, and lighting are only used when really necessary. Another advantage is the ability to monitor and control all relevant data via a central app or platform. This allows everyone in the household to keep an eye on energy consumption and take specific measures for further optimization. The combination of PV, heat pumps, and intelligent building technology creates a smart, networked system that reduces both costs and CO2 emissions. This is a decisive step toward a sustainable and energy-efficient future.

Energy Solutions for New Builds and Existing Buildings

Flexible and efficient installation solutions are available for both new and existing buildings. The combination of a photovoltaic system with a heat pump water heater meets the requirements of modern energy efficiency standards. At the same time, it helps to reduce costs, regardless of the building type.

New Builds

In new construction projects, the advantage is that it can be included in the planning from the outset. The photovoltaic system can be positioned directly on the roof to ensure maximum power generation. In addition, a heat pump water heater is installed, which is almost CO2-neutral through the use of PV power. Modern new builds are often already designed to be energy-efficient. With this system, builders have the opportunity to maximize sustainability while simultaneously qualifying for subsidy programs.

Existing Buildings

These systems are also feasible for existing buildings. By retrofitting a photovoltaic system and a heat pump, older buildings can be transformed into energy-efficient homes. Even on older roofs or where space is limited, smaller photovoltaic systems can be installed. Excellent results can be achieved through the use of an energy management system. The easy integration into existing heating or hot water systems is another plus for older buildings. The heat pump water heater can be adapted to existing systems, making the conversion easier.

Frequently Asked Questions.

It consists of a photovoltaic system and a heat pump water heater or an air-to-water heat pump combined with each other. The photovoltaic system generates solar power, while the heat pump water heater uses heat from the air to heat the water. This interaction reduces the demand for grid power and actively helps to lower costs.

Yes, the purchase of such a system is eligible for subsidies in Switzerland, provided that government funds are available. A good reason to find out more in good time!

Savings depend on the size of the PV system, hot water demand, and the share of self-consumption. Households can save up to 80% of electricity costs for hot water preparation through the boiler alone, especially when everything is optimally matched to consumption.

It works in two stages. In the photovoltaic system, solar power is generated from sunlight, which then powers the heat pump water heater. This draws in heat from the surroundings, compresses it, and transfers the resulting thermal energy to the domestic water. To maximize efficiency, surplus solar energy can be stored or fed into the grid.

Yes, it is suitable for both building types. In new builds, it can be integrated directly into the planning for optimal use of the roof area for the PV system and space for the heat pump water heater. Existing buildings can become more energy-efficient through retrofitting and adaptation to existing systems.

The combination allows for hot water preparation largely using self-generated electricity. This significantly lowers energy costs and reduces CO2 emissions. Furthermore, this results in an increase in self-consumption, as surplus electricity would otherwise be fed into the grid.

A modern energy management system allows for real-time monitoring of performance and consumption. Using an app, you can see the solar power production, the share used for hot water preparation, and the level of self-consumption.

Conclusion.

This dual system is an innovative and sustainable option for hot water preparation and is suitable for both new and existing buildings. By combining a photovoltaic system and a heat pump water heater, you benefit from maximum energy efficiency, lower your energy costs, and make an active contribution to climate protection. In any case, it is a sound investment in the future. Take a look at the products on our site; we have a large selection of water heaters. Contact our team for specific advice. We are happy to help you plan and install your individual system. All our offers are non-binding!

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