The Difference Between a Solar System and a PV System - What You Need to Know

The term solar system is often used interchangeably with photovoltaic system (PV system), but there are important differences between the two. Solar systems encompass various technologies for harnessing solar energy, while PV systems are specifically designed to generate electricity. In this article, we explain the differences, potential applications, and the key factors you should consider when choosing the right system.

Solar System vs. PV System - An Overview

What Is a Solar System?

The term solar system is an umbrella term for all technologies that use solar energy. There are two main types of solar systems:

• Photovoltaic system (PV system): These systems convert sunlight into electrical energy. Electricity is generated by solar modules consisting of photovoltaic cells. The energy produced can be used directly, stored, or fed into the grid.
• Solar thermal system: These systems use solar energy to generate heat. They are primarily used to heat water or to supplement the heating system. Here, the sun’s energy is converted into heat rather than electricity.

What is a PV system?

A photovoltaic system (PV system) is a specific type of solar system that converts sunlight directly into electrical current. This process takes place via solar cells contained within the solar modules. PV systems are widely used in Germany because they offer an environmentally friendly and sustainable way to generate electricity while reducing energy costs.

Different Functions of Solar Systems and PV Systems

Electricity Generation in PV Systems

The primary purpose of a PV system is to generate electricity. This system produces direct current (DC), which is converted into alternating current (AC) via an inverter so that it can be used in homes and businesses. The generated energy can either be consumed directly, stored in a battery storage system, or fed into the public grid.

Heat generation in solar thermal systems

In contrast, solar thermal systems do not generate electrical energy, but rather heat. These systems consist of solar collectors that absorb solar radiation and use it to heat water or air. Solar thermal systems are often used in combination with conventional heating systems to produce hot water or to reduce the load on the heating system.

Solar Thermal vs. PV in a Single-Family Home

Imagine you own a single-family home in Nuremberg. You want to lower both your electricity costs and your heating costs. A PV system covers your electricity needs, while a solar thermal system helps generate hot water and supports the heating system. Both technologies complement each other and offer comprehensive use of solar energy.

When is which system worthwhile?

Use of PV systems

PV systems are particularly worthwhile for households and businesses with high electricity consumption, especially during the day when the sun is shining. The energy generated can be used directly, and through feed-in tariffs, excess electricity that is not consumed is fed back into the grid. An energy consultant from the my-home.de network can help you decide whether a PV system is the right choice for you.

Use of Solar Thermal Systems

A solar thermal system is particularly useful if you have a high demand for hot water. During the summer months, such systems can usually cover your entire hot water needs, while in the colder months they provide supplemental heating.

Solar System or PV System - Which Solution Is Right for Me?

• Analyze electricity needs: If your main goal is to save electricity, a PV system is the right choice. Consult an energy consultant to conduct a precise needs analysis.
• Consider your heating needs: If the focus is on hot water production or supplemental heating, a solar thermal system makes more sense.
• Combining both systems: In many cases, a combination of PV and solar thermal systems is ideal for efficiently meeting both electricity and heating needs.

Get advice from my-home.de

Whether you’re considering a PV system or a solar thermal system, my-home.de is here to assist you with experienced energy consultants. Our expert partners will help you find the right solution for your property and support you through the planning and implementation process. Use our contact form to schedule a no-obligation consultation.

The Difference Between a Solar System and a PV System - Making an Informed Decision

The choice between a solar system and a PV system depends on your individual needs. While PV systems generate electricity, solar thermal systems specialize in heat generation. Both technologies offer advantages, and with expert advice, you can find the right solution for your home. Leverage the expertise of my-home.de to make the right decision for your energy supply.

Frequently Asked Questions (Q&A)

What is the difference between a solar system and a PV system?

A PV system generates electricity, while a solar system can also be used for heat generation (solar thermal).

Can I combine both systems?

Yes, many homeowners combine PV and solar thermal systems to efficiently use both electricity and heat.

How does a PV system work?

A PV system converts sunlight into electrical energy. The direct current generated is converted into alternating current via an inverter.

What are the benefits of a solar thermal system?

A solar thermal system reduces the costs of hot water and heating, especially during the summer months when hot water needs can be fully met.

Is a PV system still worthwhile in cloudy weather?

Yes, PV systems produce electricity even in diffuse light, though less than under direct sunlight.

How much electricity can a PV system generate?

The amount of electricity depends on the size of the system, its orientation, and the amount of sunlight. An energy consultant can provide you with an exact calculation.

Who can help me decide between a PV system and a solar thermal system?

An energy consultant from the my-home.de network can provide you with comprehensive advice and assist you with planning.

Are there subsidies for PV or solar thermal systems?

Yes, there are government subsidies for both technologies. An energy consultant can help you find the right programs.