PHOTOVOLTAIC SYSTEMS
Installing solar panels to generate electricity is a responsible choice for the environment, as well as an efficient and sustainable form of energy that converts sunlight into electricity.
The photovoltaic process uses the sun’s energy potential to generate direct current. A properly designed system that combines solar panels with photovoltaic cells and an inverter are enough to achieve an efficient and environmentally positive solution. The adoption of solar energy systems by families, businesses and communities contributes to the important global transition to a more sustainable energy future - a commitment that everyone can make today to reduce our impact on the planet.
The advantages of solar panels
Operate sustainably
Solar panels are an environmentally friendly option for energy production. The conversion of sunlight into electricity occurs without harmful emissions, reducing the consumption of resources and preserving air quality.
Energy Independence
The sun provides an abundant source of clean, renewable energy that is available to everyone. The ability to convert it on-site decreases your reliance on grid energy and offers a reliable and continuous solution, especially in remote areas or if there’s a disruption in power.
Save Money
Those who choose solar power achieve substantial financial savings in the medium to long term. Electricity bills are drastically reduced and, in some cases, excess electricity can be sold to your utility, generating additional revenue and contributing to a return on investment.
Increase the value of your home
Whether it’s a home, hotel, business or library, having a quality solar installation is viewed as a major upgrade . Buyers today are increasingly interested in sustainable energy solutions, making properties with solar systems particularly attractive in the real estate market.
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Tax Credits and Incentives
Superbonus 70%
The Superbonus consists of fixed tax deductions (70% for 2024) of the expenses incurred for the installation of photovoltaic systems connected to the grid for multi-family buildings, with relative storage solutions that might be installed on the subsidized system at the same time or at a later date.
Renovation tax deduction of 50%
The 50% renovation tax deduction is a 50% IRPEF fiscal detraction for up to a maximum eligible expenditure of 96,000 euros. It is granted for expenses under the legislation for works considered building renovations on residential properties, either owned or rented, and includes the installation of photovoltaic panels on roofs, balconies or facades, and their storage systems. The deduction is divided in 10 annual installments of the same amount.
Reduced VAT
A reduction of 10% on the value-added-tax is applied on deliveries and services related to photovoltaic systems, parts and components.
Financial savings of a solar energy system
The financial savings of a solar energy system depends on many factors and is complex to predict over its lifetime, but it is possible to provide a calculated estimate.
Factors affecting solar power performance
1. panel materials
Materials, such as monocrystalline silicon or polycrystalline, determine the overall efficiency.
2. solar cell efficiency
more efficient cells convert more sunlight into energy
3. orientation and tilt
solar panels need to be in a position that maximizes solar exposure
4. weather conditions
solar irradiance and external temperature affect performance (high temperatures can reduce output efficiency).
5. quality of installation
proper installation, with attention to shading and periodic maintenance, ensures optimal solar panel performance over time.
Which panels to use? Choosing the best type of solar panel as well as the system’s design are important to maximize efficiency. Today, the average efficiency of photovoltaic panels varies between 15% and 22%. However, technology is constantly evolving, and panels with higher efficiencies are already available.
How much energy does the system produce? There is software that can predict energy production by the hour for an entire year. An important factor to consider when calculating solar output is the building's energy usage. Ideally, it is best to have a detailed consumption profile, but if this isn’t available, electricity bills offer useful pointers.
When is the installation profitable? When the actual price of energy consumed is less than what you pay on your utility bill. To calculate this, we need the cost of the equipment and installation for the PV system, the annual production, and the percentage of energy self-consumed.
Self-consumption means that homes or businesses generate a percentage of their own power. A residential system without energy storage achieves 30-50% self-consumption, however it can reach 70-80% with a large storage size. Excess energy is fed into the grid and sold at market price.
