There is much talk of solar panels and renewable energies. These are not very recent tools at our disposal. On the contrary, since the 1960s, photovoltaic systems allow us to harness a free and widespread resource, such as sunlight, to create renewable electricity.

However, it is only in recent years that people have begun to talk much more about photovoltaic systems, due to the climate crisis and the European 2030 targets to counteract it. More and more people decide to install them on the roofs of their houses, also facilitated by building bonuses and cashback. Entrepreneurs are now very interested in a roof-mounted photovoltaic system for companies, Heiwit's core business. They have indeed discovered how convenient it is to own solar panels that meet the energy needs of the company and also offer a green way of earning money.

Despite the exponential growth of solar panels in recent years (an estimated 80,000 installations each year from 2020 to the present), there are still some myths that we at Heiwit would like to dispel that do not allow for full adoption of this sensational technology.

Solar is too expensive: we cannot afford this investment

In the past, the installation of photovoltaic systems could be expensive and, indeed, when the Russian-Ukrainian conflict broke out, costs soared due to the scarcity of raw materials. However, new markets, such as the Chinese, are becoming more and more popular, offering a price drop that makes it possible to obtain quality panels at a low cost.

Costs have fallen dramatically in recent years due to advances in technology and government incentives. Initial investments in solar energy may seem prohibitive for some organisations due to their size, however, there are several solutions to avoid a large outlay of money. There are, for example, the Power Purchase Agreements which allow solar systems to be installed without capital outlay. With such a system, a supplier installs and operates the solar system on the company's site, which only pays for the energy actually produced at an agreed price. This allows companies to achieve energy savings without having to invest upfront.

Then there is the rental of the photovoltaic system, such as the one proposed by Heiwit. Find out more in this article.

Our area is not particularly sunny, so a plant will not provide enough energy

Although direct solar irradiation is optimal for solar power generation, photovoltaic systems can still generate electricity even in cloudy or cold conditions. Photovoltaic technology is designed to utilise diffuse light and not just direct sunlight.

This myth is based on a superficial understanding of how photovoltaic systems work. While it is true that solar energy is influenced by weather conditions, modern plants are designed with advanced technologies to maximise efficiency and energy production. Furthermore, solar energy can be supplemented with energy storage systems, such as batteries, to ensure a continuous supply of electricity, even during periods of low solar irradiation.

Regardless of location, solar power can be a reliable and efficient source of energy. Even in less sunny climates, solar panels continue to produce energy, thanks to their ability to harness visible, UV and infrared light. In addition, solar technology works best in colder temperatures, which means it can also be suitable for climates such as the Po Valley or mountainous regions.

Solar panels are not 100% green: they pollute

The myth that photovoltaic systems are harmful to the environment is wrong. On the contrary, solar energy is a clean and renewable energy source that fits the decarbonisation of the energy sector. During operation, solar panels do not emit any harmful gases, helping to reduce air pollution and climate change.

Although the production and disposal of solar panels can have an environmental impact, this is significantly less than conventional energy sources such as coal or oil, which generate harmful emissions during extraction, combustion and disposal. Furthermore, solar panels can be recycled to further reduce their environmental impact, demonstrating that solar energy is a sustainable and responsible choice for the energy future.

The rooftop solar system I am installing now will already be obsolete next year, better to wait

It is a mistake to think that it is better to wait to install a photovoltaic system on a company roof, considering the continuous advancement of technology. Although research and development in the solar industry is ongoing, current solar systems are already extremely reliable and durable, with a service life of more than 25 years. Working with experienced suppliers ensures the installation of high quality systems and maintenance packages that protect and optimise performance over time.

Waiting for further developments could mean missing the opportunity to immediately benefit from the energy savings and other advantageous features of solar systems. Moreover, with energy costs continuously rising and financial benefits available through incentives and tax breaks, the timely installation of solar panels can offer a faster and more significant return on investment, also contributing to long-term environmental sustainability.

Photovoltaic systems require expensive and time-consuming maintenance

Contrary to popular belief, solar panels do not require regular cleaning as rainwater usually washes away dirt and debris. Even during snowfall, the panels continue to generate electricity, and are built to withstand various weather conditions, making the idea that they are fragile false. Moreover, regular maintenance is inexpensive and requires little time, as most maintenance activities involve simple inspections and the removal of any obstacles that might shadow the panels.

While it is true that solar panels suffer a slight drop in efficiency over time, the most reliable manufacturers offer guarantees that ensure long-term performance. At Heiwit, we guarantee annual maintenance after the installation of your rooftop photovoltaic system to ensure that your panels best meet your energy demand.

Our professional and technical approach to solar system maintenance ensures that contractors do not have to worry about burdensome or costly tasks. Thanks to our experience in the industry, we are able to carry out regular inspections and remove any obstacles that could affect the performance of solar panels. We ensure that our customers receive an efficient and highly professional service.

Join the energy transition. Contact us today for the installation of solar panels on your company roof.