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Best Sellers

Controller

What are solar regulators?

In general, a solar regulator or solar controller allows the connection of a solar panels to a battery bank. It is therefore the only way to connect photovoltaic modules with batteries. Never be connected directly, because without the management of the solar charger battery will be damaged.

Controller

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Solar regulator 15 Steca Solarix PRS 1515 12V-24V

€78.95

SOLAR REGULATOR 15A STECA SOLARIX PRS 1515 12V-24V

Steca regulator of Solarix PRS line of 15A, self-adjusting to 12V or 24V systems. It is robust, simple and reliable for charging 12V or 24V from one or some solar photovoltaic panels.

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  • -16%

Victron SmartSolar MPPT 250/100 Solar Controller

€965.58 -16% €1,149.50

Victron SmartSolar MPPT 250/100 Solar Controller

Victron solar charge MPPT controller for 12V, 24V or 48V systems. Victron\'s ultra-fast tracking of maximum power point achieves up to 30% more power than conventional controllers. For 1450W solar panesl in 12V and up to 5800W systems in 48V systems. Available in two different PV input plug in.

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  • -16%

Victron SmartSolar MPPT 250/85 Solar Controller

€863.94 -16% €1,028.50

Victron SmartSolar MPPT 250/85 Solar Controller

Victron solar charge MPPT controller for 12V, 24V or 48V systems. Victron\'s ultra-fast tracking of maximum power point achieves up to 30% more power than conventional controllers. For 1200W solar panesl in 12V and up to 4900W systems in 48V systems. Available in two different PV input plug in.

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  • -16%

Victron SmartSolar MPPT 150/100 Solar Controller

€813.12 -16% €968.00

Victron SmartSolar MPPT 150/100 Solar Controller

Victron solar charge MPPT controller for 12V, 24V or 48V systems. Victron\'s ultra-fast tracking of maximum power point achieves up to 30% more power than conventional controllers. For 1450W solar panesl in 12V and up to 5800W systems in 48V systems. Available in two different PV input plug in.

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  • -16%

Victron SmartSolar MPPT 150/85 Solar Controller

€711.48 -16% €847.00

Victron SmartSolar MPPT 150/85 Solar Controller

Victron solar charge MPPT controller for 12V, 24V or 48V systems. Victron\'s ultra-fast tracking of maximum power point achieves up to 30% more power than conventional controllers. For 1200W solar panesl in 12V and up to 4900W systems in 48V systems. Available in two different PV input plug in.

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Solar regulator Solar MPPT SCL 60A 12V-24V-48V

€344.85

Solar Controller MPPT SCL 60A 12V-24V-48V

SCL 60A solar controller allows the use of grid connection panels in off-grid facilities. MPPT technology achieves a highly increase in efficiency of the system. It allows load currents up to 60A and can manage up to 3200W PV systems 48V batteries.

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Solar regulator 25A PWM Morningstar SunSaver SSD-25RM

€235.95

Morningstar SunSaver SSD-25RM 25A PWM Controller with Remote Panel

The Morningstar SunSaver Duo is a PWM (Pulse Width Modulation) solar controller for two batteries, especially suited for recreational vehicles, boats and countryside homes. The SSD-25RM model comes with the included remote panel.

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Solar regulator 12A PWM Morningstar SunKeeper SK-12

€90.75

Solar charge controoller Morningstar SunKeeper SK-12 12A PWM

The Morningstar SunKeeper controller provides low-cost regulated output directly from the solar module to maximize battery life in low-power solar applications.

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Solar regulator 10A PWM Morningstar SHS-10

€83.49

Solar charge controller 10A PWM Morningstar SHS-10

Solar charge controller from the well-known Morningstar brand. Model SHS of 10A to control the load of one or several photovoltaic solar panels of 12V and up to 170W of total power.

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Solar regulator 10A Steca Solsum 10.10F 12V-24V

€56.87

SOLAR REGULATOR 10A STECA SOLSUM 10.10F 12V-24V

Steca regulator of Solsum line F of 10A, self-adjusting to 12V or 24V systems. It is robust, simple and reliable for charging 12V or 24V from a solar photovoltaic panel controller.

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Solar regulator 10 Steca Solarix PRS 1010 12V-24V

€75.02

SOLAR REGULATOR 10A STECA SOLARIX PRS 1010 12V-24V

Steca regulator of Solarix PRS line of 10A, self-adjusting to 12V or 24V systems. It is robust, simple and reliable for charging 12V or 24V from one or some solar photovoltaic panels.

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Solar regulator 40A Steca Tarom 440 48V

€324.28

SOLAR CHARGE CONTROLLER 40A STECA TAROM 440 48V

Steca regulator from Tarom line of 40A indicated for 48V systems. It is robust, simple and reliable for charging 48V battery systems from some solar photovoltaic panels.

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Solar regulator 20A Steca Solarix PRS 2020 12V-24V

€85.43

SOLAR REGULATOR 20A STECA SOLARIX PRS 2020 12V-24V

Steca regulator of Solarix PRS line of 20A, self-adjusting to 12V or 24V systems. It is robust, simple and reliable for charging 12V or 24V from one or some solar photovoltaic panels.

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Solar regulator 30 Steca Solarix PRS 3030 12V-24V

€104.41 -5% €109.90

SOLAR REGULATOR 30A STECA SOLARIX PRS 3030 12V-24V

Steca regulator of Solarix PRS line of 10A, self-adjusting to 12V or 24V systems. It is robust, simple and reliable for charging 12V or 24V from one or some solar photovoltaic panels.

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Solar regulator 10A Steca PR 1010 12V-24V

€102.90

SOLAR CHARGE CONTROLLER 10A STECA PR 1010 12V-24V

Steca regulator of the PR line of 10A, self-adjusting to systems of 12V or 24V. It is robust, simple and reliable controller for charging 12V or 24V batteries from one or several photovoltaic solar panels.

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Solar regulator 15A Steca PR 1515 12V-24V

€118.58

SOLAR CHARGE CONTROLLER 15A STECA PR 1515 12V-24V

Steca regulator of the PR line of 15A, self-adjusting to systems of 12V or 24V. It is robust, simple and reliable controller for charging 12V or 24V batteries from one or several photovoltaic solar panels.

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  • -6%

Solar regulator 20A Steca PR 2020 12V-24V

€131.51 -6% €139.90

SOLAR CHARGE CONTROLLER 20A STECA PR 2020 12V-24V

Steca regulator of the PR line of 20A, self-adjusting to systems of 12V or 24V. It is robust, simple and reliable controller for charging 12V or 24V batteries from one or several photovoltaic solar panels.

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Solar regulator 30A Steca PR 3030 12V-24V

€152.46

SOLAR CHARGE CONTROLLER 30A STECA PR 3030 12V-24V

Steca regulator of the PR line of 30A, self-adjusting to systems of 12V or 24V. It is robust, simple and reliable controller for charging 12V or 24V batteries from one or several photovoltaic solar panels.

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Solar regulator 6A Steca Solsum 6.6F 12V-24V

€39.91

SOLAR REGULATOR 6A STECA SOLSUM 6.6F 12V-24V

Steca regulator of Solsum line F of 6A, self-adjusting to 12V or 24V systems. It is robust, simple and reliable for charging 12V or 24V from a solar photovoltaic panel controller.

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Solar regulator 20A Steca Solarix MPPT 2010 12V-24V

€264.99

SOLAR CHARGE CONTROLLER 20A STECA SOLARIX MPPT 2010 12V-24V

Solar charge controller Steca 20A from Solarix MPPT line with automatic adjustment to 12V or 24V systems. Highly efficient controller with maximum power point monitoring technology (MPPT), especially suitable for use with panels normally used for grid connection.

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Solar regulator 8A Steca Solsum 8.8F 12V-24V

€47.19

SOLAR REGULATOR 8A STECA SOLSUM 8.8F 12V-24V

Steca regulator of Solsum line F of 8A, self-adjusting to 12V or 24V systems. It is robust, simple and reliable for charging 12V or 24V from a solar photovoltaic panel controller.

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Solar charge controller 45A Morningstar Tristar TS-45

€215.38

Solar Charge Controller 45A Morningstar TriStar TS-45 12-24-48V

Large solar charge controller from the well-known Morningstar brand. TriStar 45A model to control the charge of a photovoltaic solar panel system, a wind turbine or a hydroelectric generator and thus power a set of 12V, 24V or 48V batteries. It can handle up to 3 kW of solar panels in 48V systems.

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Solar regulator 45A MPPT Morning Star TS-MPPT-45

€664.29

Solar Charge Controller 45A MPPT Morningstar TS-MPPT-45

It is one of the best-selling MPPT solar charge controller on the market. It is the model Tristar MPPT 45A from the well-known Morningstar brand. It is indicated to control the charge of a system of photovoltaic solar panels and to feed a set of batteries of 12V, 24V, 36V or 48V. It can handle up to 2400 W of solar panels in 48V systems.

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Solar regulator 45A PWM Morningstar Tristar PWM-45 con Display

€302.50

Solar Charge Controller 45A Morningstar TriStar TS-45M 12-24-48V with display

Solar charge controller from the well-known Morningstar brand with optional display included. TriStar 45A model to control the charge of a photovoltaic solar panel system, a wind turbine or a hydroelectric generator and thus power a set of 12, 24 or 48V batteries. It can handle up to 3 kW of solar panels.

More on Solar Regulators

And how does a solar charge regulator work? In general, a solar controller or solar charger allows the connection of a kit of solar panels, or only one, to a bank of solar batteries. The charge regulators are in charge of managing the speed and power of the charge and discharge of the batteries according to the solar generation of the panels and the consumption needs of the load that the solar installation supplies.

In addition, solar regulators will ensure that the current and voltage parameters of the panels and the load (consumption) are adequate to avoid any type of overvoltage or short circuit in the system. The solar charge regulator is, therefore, the only element that correctly guarantees the connection of the photovoltaic solar panels with the solar batteries. They should never be connected directly, because without the management of the solar charger the batteries would be damaged. There are mainly two types of regulators according to the needs and characteristics of each installation:

- PWM solar charge regulators

- MPPT solar charge regulators

What is a PWM regulator?

The solar regulator PWM (Pulse Width Modulation) - (Modulation of the pulse amplitude) is a type of technology by means of which the amplitude of the input sine wave signal (current wave and voltage of the solar panels) is modified to adapt with the conditions of current, frequency and output voltage of the regulator to subsequently go to the solar batteries. In this way the output power of the solar panels is matched with that of the input of the solar batteries. These types of regulators are used for voltage values of standard solar panels as we will explain later (12V-24V-48V) and although they are robust, compact and competitive solutions, they can present some problem of interference by radio frequency waves. In general, PWM charge regulators will be used for low-power isolated solar installations with voltage values no greater than 48V and currents not greater than 30A.

Advantages of PWM type solar regulators::

  • Older, robust and proven technology.
  • More economical solar regulators.
  • Although its usual use for isolated solar installations does not usually exceed 30A, there are up to 60A.
  • They usually have a longer life since they have convection cooling fins.

Disadvantages of PWM type solar regulators::

  • The input voltage (V) to the regulator must be consistent with that of the solar batteries.
  • Controllers with currents higher than 60A are not common.
  • Due to their voltage and current limitations they can limit the growth and expansion of a solar installation.

What is a MPPT regulator?

The MPPT (Maximum Power Point Tracking) solar controller focuses on always looking for the voltage and current points that provide the highest power in the system. This technology focuses on sweeping the points of voltage and current allowed by the system, always looking for the product of these two variables that results in the power to be as large as possible (P = V x I). This technology allows to modify the conditions of use of the system both when the solar radiation changes (therefore changes the voltage and current of the solar panels) and the consumption of the load (more or less energy need depending on the time of day and energy needs). This type of solar regulators allow greater flexibility of the system, always obtaining the highest possible efficiency in the face of changes in the generation parameters as well as in the consumption parameters. In order to obtain this difference in parameters (V-I), the MPPT regulators have a variable resistance for this purpose.

These types of regulators are generally used for isolated solar installations with solar panels that do not necessarily have standard isolated voltages, and are suitable for high power and number of panels, with currents greater than 30A, as explained below. These regulators, although more efficient, are more expensive than PWMs. For information purposes, it should be noted that this is the technology used in high-power grid inverters for large solar plants since the MPPT system allows the highest system performance to be obtained under variable conditions.

Advantages of MPPT regulators: :

  • More efficient technology that allows up to 30% additional energy, which increases the charge of solar batteries.
  • They allow greater variability in the design of the continuous part (solar panels), being able to install modules with higher voltages than solar batteries, allowing the use of the most economical models of solar panels.
  • They can go up to 80A of current and up to 7000W per regulator.
  • They are more modular when the photovoltaic installation has to be expanded with greater power from panels or batteries.

Disadvantages of MPPT regulators: :

  • They are more expensive than their PWM alternative..
  • They are larger and bulkier components than PWM regulators.
  • They are more complex when designing since more variables (Power, current, voltage, etc ...) intervene in this process In our online store we have a wide variety of solar regulators of both technologies that allow us to find the most suitable solution for each case.

We distribute the best brands on the market (STECA, Morningstar, Victron, Schneider, EPSolar, SCL) at very competitive prices.

But how do you choose a solar charge controller? or what solar regulator do i need?

Each case will be different, but below we explain the general rules for choosing one type or another of solar charge regulator.

PWM type solar regulator - The open circuit voltage of the panel (Voc) or panels that are connected must be approximately 50% higher than the standard voltage of the solar battery bank, usually (12V-24V-48V). Additionally, the total current of the solar panels cannot exceed the amperage determined by the regulator. Depending on the solar installation, the daily consumption needs (Wh / day) we will decide what power of solar panels and batteries we will need. Finally, we will have to find out if solar regulators that adapt to them are available in the market according to our needs.

MPPT Solar Regulator- This type of solar regulators are more flexible and allow a greater variety of combinations, as well as higher solar installations power. In this case, to choose the necessary regulator we must take into account that the solar panel combinations (string / strings) do not exceed the maximum power of the regulator, the input current and voltage of the MPPT (usually 1 or 2) dictated by the manufacturer. This type of regulators allow the use of practically any type of panels and batteries on the market since the ranges offered in the market are wide and varied.

If you have any questions or queries, we are at your disposal at info@tienda-solar.es.