The Advantages of Solar Energy: Understanding, Comparing and Acting for the Energy Transition

2 December 2025

Home » News » The Advantages of Solar Energy: Understanding, Comparing and Acting for the Energy Transition

Solar energy is attracting a growing number of individuals, companies and local authorities in the Var and Alpes-Maritimes regions, where the desire to reduce energy bills and engage in the energy transition is strong. According to the Ministry of Ecological Transition, the photovoltaic solar fleet in France reached a capacity of more than 20 GW at the beginning of 2024, showing unprecedented growth in the sector. This solution offers concrete benefits, both ecological and economic. By understanding how it works and its advantages, it becomes easier to determine whether this renewable energy source meets your specific needs.

For installers and individuals alike, these developments can be difficult to navigate. VAT also has a direct impact on the total cost of a solar project and therefore on its profitability.

To help you understand clearly, the Edmond Solutions team explains the latest changes and highlights the key information to know. What VAT rates apply to solar installations? Which systems are eligible for reduced rates and until when? And most importantly, how can you benefit from the best possible conditions if your solar project includes a virtual battery?

Les avantages de l'énergie solaire

What is Solar Energy and What Are Its Main Types?

Solar energy consists of capturing the sun’s energy, an inexhaustible and clean resource, and converting it into electricity or heat for daily use. It is one of the leading solutions for achieving the energy transition, whether for residential homes or professional buildings.

There are two main technologies: photovoltaic solar energy and solar thermal energy. These systems differ in their uses but share the same goal: producing clean energy and contributing to the energy independence of users.

Photovoltaic Solar Energy: Easily Producing Electricity

Photovoltaic technology converts sunlight into electricity through panels installed on roofs or ground structures. This electricity directly powers household or professional equipment. Self-consumption becomes possible, supporting progressive energy autonomy.

A properly sized installation can cover a large part, or even all, of the electrical consumption, reducing dependence on the public grid and generating substantial energy savings each month.

Solar Thermal Energy: Heating with the Sun

Solar thermal energy captures heat from the sun to heat domestic hot water, swimming pools or support a heating system. This efficient and environmentally friendly solution reduces carbon emissions by limiting the use of fossil fuels.

It is ideal for households as well as certain industrial and service sectors requiring large quantities of hot water daily.

What Are the Main Environmental Advantages of Solar Energy?

Choosing solar energy means opting for a renewable source with a widely recognized positive impact on the environment. Solar electricity produces no pollutants during use, except during the initial manufacturing phase. Over the full lifespan of an installation, environmental benefits quickly outweigh the impacts.

Solar panels significantly reduce carbon emissions and other harmful gases. This choice actively contributes to improving air quality and reducing the greenhouse effect, both essential in combating climate change.

  • Reduction of air pollution
  • Preservation of natural resources
  • Use of previously unused surfaces such as rooftops

In France, solar panels are almost 95 percent recyclable thanks to the national recycling organization Soren.

What Are the Economic Advantages of Solar Energy?

Solar energy generates several financial advantages for households, companies and communities. Beyond lowering energy bills, solar installations increase property value and make equipped buildings more attractive.

In addition, various public aids (local subsidies, grants, advantageous feed-in tariffs) help reduce the initial investment and accelerate the profitability of the solar system.

Les avantages de l'énergie solaire
Economic advantage
Description
Reduction of energy bills
Immediate and long-term decrease in electricity expenses
Low maintenance costs
Little maintenance required and long lifespan
Stable performance
Predictable production to better manage energy budgets
Increased property value
Additional asset when selling or renting

What Are the Limitations of Solar Energy?

Despite its many benefits, solar energy has some limitations to consider. Initial installation cost may seem high, though prices continue to decrease and energy savings compensate for the investment over time.

Production also depends on local sunlight levels. In low-sunshine regions, profitability may be reduced. It is also important to have enough surface area and to ensure good aesthetic integration into the existing building.

How Does Solar Self-Consumption Work?

Solar self-consumption means using the electricity produced by your own solar panels to meet your energy needs rather than injecting it into the grid. This model is increasingly popular among businesses seeking energy autonomy.

To optimize self-consumption, equipment should be used during peak production hours. Some users add a battery to store surplus energy and further reduce external electricity purchases.

  • Consume the electricity produced as a priority
  • Reduce energy purchases from the grid
  • Better manage the energy budget

According to ADEME, without a battery a household generally reaches 30 to 40 percent energy autonomy. With optimized management or storage, this rate can reach 60 to 70 percent.

Comparison Between Photovoltaic Energy and Other Sources of Energy

Compared to other energy sources, photovoltaic energy stands out due to its renewable origin and zero emissions during operation. This is a clear advantage over fossil fuels such as coal or natural gas.

Compared to wind or hydroelectric systems, solar panels are more accessible and require fewer large-scale infrastructures. In sunny regions like ours, solar power provides a flexible and effective solution for households and businesses committed to the energy transition.

Les avantages de l'énergie solaire

Frequently Asked Questions on the Advantages of Solar Energy

  • Reduced energy bills thanks to local production
  • Lower carbon emissions and environmental protection
  • Accessible renewable energy with low impact
  • Increased property value

These combined benefits make solar energy one of the most effective solutions for moving toward energy independence at home or at work.

For many companies, installing photovoltaic panels leads to a rapid decrease in energy expenses. Return on investment varies depending on location and system size, but low maintenance costs and public incentives accelerate profitability.

  • Improved competitiveness
  • Simplified energy management
  • Responsible brand image for clients and partners

Prices depend on panel type, installed power and site complexity. As an indication, average residential photovoltaic installations range from 8000 to 15000 euros. Public financing can help reduce the remaining cost.

Des financements publics peuvent alléger l’investissement.

Installation type

Average price incl. tax

3 kWc residential system (about 8 panels)

8500 to 10500 euros

6 kWc residential system (about 16 panels)

14000 to 17000 euros

  • Significant initial investment
  • Variable production depending on weather
  • Adaptation needed for certain sites

A preliminary analysis of sunlight, roof orientation and grid connection must always be carried out before installation.