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GruppoSTG since 2009 is an Italian company specialized in the design and production of photovoltaic and structural solutions. Inspired by the principles of sustainable development and involved in the study and application of new cutting-edge technologies aimed at energy saving, the STG Group has consolidated itself, becoming a reliable and competent partner, able to guarantee an integrated approach to high-quality energy solutions. environmental [...]

  • PWM Regulator
  • Italy
  • Italy

Italy

What is Solar Energy in Italy?

The solar energy in Italy has seen a major surge in this industry among other European countries such as Germany, Turkey, Spain, and the Netherlands.

In July 2005, the country started its first “Conto Energia” program to support the development of renewable power, and the result so far has been remarkable. In 2018, Italy added solar PV capacity of 437 MW, and its PV market grew by 7%.

The major driving factor in the Italian PV market has been solar rooftops, and the number of solar installation projects with more than 1 MW capacity increased in in 2017 and 2018.

Italy is considered the country of sunshine which makes the nation very favourable for the installations of solar energy production plants and farms. In Central-Southern Italy, the annual solar radiation can range from 4.7 kWh per square metre per day, and 5.4 kWh per square metre per day in Sicily. While the other regions also have a very high solar energy production potential making Italy one of the leading countries for the production of solar energy, as well as in the sector of research and technological innovation.

The solar energy in Italy has seen a major surge in this industry among other European countries such as Germany, Turkey, Spain, and the Netherlands. Italy’s PV market is known as one of the photovoltaic markets that definitely deserve a place in the solar energy spotlight. In fact, during the first ten years of the new millennium, Italy was on the third spot after Germany and Spain to experience a significant boom in solar installations after encouraging the citizen through government incentives. This made most of the manufacturers and citizens embrace and support solar power.

In 2010, The Montalto di Castro Photovoltaic Power Station was completed and it is considered the largest photovoltaic power station in Italy with 85 MW solar capacity. Along with this largest PV power station, there are also other large PV plants like Cellino San Marco with 42.7 MW capacity, San Bellino with 70.6 MW capacity, and Sant’ Alberto with solar capacity of 34.6 MW.

Aside from conventional solar PV technology, Italy is also known for its developing concentrated solar power (CSP) technology. To function efficiently, this concentrated solar technology requires higher direct solar irradiation, which makes the country suitable for this technique as Italy has more exposure to sunlight. Furthermore, the southern regions including the islands of Sardinia and Sicily also offer good conditions for CSP technology, the reason why the Italian government provided large investments to promote this solar power development.

Currently, there are three solar plants running in the country. The first one is the Archimede solar plant, which was installed on the island of Sicily in 2010, attaining a solar capacity of 5 MW. Moreover, planning and promotion for the CSP technology will undergo several additional projects which would add another solar capacity of 360 MW, annually.

As of now, Italy for being known as “sunshine-blessed” country is currently the second-largest market in Europe in terms of installed solar power generation capacity. Which then, achieved over 20 GW of photovoltaic (PV) power plants in 2018. This year, the Italian solar power market is expected to enter a new series of growth, particularly investing in “grid parity” projects that mostly rely on corporate power purchase agreements (PPAs).

PWM Regulator used for below projects in Italy

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PWM Regulator

Wholesale PWM Regulator (solar charge controller)

Pulse width modulation (PWM) regulator is essentially a switch(aka. Solar Charge Controllers) that connects a solar array to a battery. The result is that the voltage of the array will be pulled down to near that of the battery.

PWM is arguably the most effective means to achieve constant voltage battery charging by switching the solar system controller’s power devices. When in PWM regulation, the current from the solar array tapers according to the battery’s condition and recharging needs.

Advantages of PWM Charge Controllers for PV Systems?

Charging a battery with a solar system is undeniably a difficult challenge.

In the past, simple on-off regulators were used to limit battery outgassing when a solar panel produced excess energy. However, as solar systems matured, it became clear how much these simple devices actually interfered with the charging process.

The history of on-off regulators has been full of battery failures, increasing load disconnects, and growing user dissatisfaction. PWM has recently surfaced as the first significant advance in solar battery charging.

PWM regulators make use of technology that is similar to other modern high-quality battery chargers. When a battery voltage reaches the regulation setpoint, the PWM algorithm slowly reduces the charging current to avoid heating and gassing of the battery — and yet the charging continues to return the maximum amount of energy to the battery in the shortest time. The result of this is a higher charging efficiency, rapid recharging, and a healthy battery at full capacity.

Additionally, the PWM charge controller promises some very interesting and unique benefits. These benefits include:

  1. Ability to recover lost battery capacity and de-sulfate a battery
  2. Dramatically increase the charge acceptance of the battery
  3. Maintain high average battery capacities (90%–95%), compared to on-off regulated state-of-charge levels that are usually 55%–60%
  4. Equalize drifting solar battery cells
  5. Reduce battery heating and gassing
  6. Automatically adjust for battery aging
  7. Self-regulate for voltage drops and temperature effects in solar systems

A great deal of testing and data supports the benefits offered by PWM regulators. Additionally, manufacturers are continuing their own ongoing test programs to refine the PWM charging technology. As a result, over time, each of these benefits will undoubtedly be improved and more clearly defined.

Are All PWM Chargers the Same?

Many solar charge controllers that simply switch FETs differently than the on-off algorithm claim to be PWM regulators. Buyers should be aware of this because this is actually not true. Only a few controllers are actually using a PWM constant voltage charging algorithm. The rest are switching FETs with various algorithms that are cheaper and less effective.

Why Buy Wholesale PWM Regulators for PV Systems from Us?

Our website lists PWM regulators for PV systems from reputable brands all over the world. As a result, you can expect that the PWM regulators that we offer are of the best variety. They are characterized by higher efficiency, reliable power voltage, and a   longer life span, thus giving them the ability to fulfill all your solar power needs.

If you want to buy PWM regulators for PV systems at low wholesale prices, then go through our website to explore products with profitable deals. You can also choose to send in your query at info@www.solarfeeds.com.