Solar Panel Controllers for Sale - Solar Modules Poly-Crystalline 250W 156*156 Module
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Solar Module Descriptions:
Solar Power Modules (known as Photovoltaics - PV) can generate electricity for your home or business, either as part of a stand-alone solar power system, or for buildings already connected to the local electricity network.
PV systems use the most abundant energy source on the planet, solar radiation, to generate electricity. They are silent, consume no fuel and generate no pollution. They also contribute to the reduction of greenhouse gas emissions; a 2kW PV system on a house will prevent the emission of about 40 tonnes of CO2 during its projected 30 year lifetime. Furthermore, the use of PV will reduce your electricity bills and exposure to fluctuating and steadily rising electricity prices.
Electrical Characteristics
Max-power (W) | 245 |
Max-Power Voltage (V) | 30.40 |
Max-Power Current (A) | 8.06 |
Open-Circuit Voltage (V) | 37.50 |
Short-Circuit Current (A) | 8.66 |
Mechanical Characteristics
Cable type, Diameter and Length | 4mm2, TUV certified, 1000mm |
Type of Connector | Compatible with MC4 plug |
Arrangement of cells | 6*10 |
Cell Size | 156*156 |
Dimension | 1580*1069*45 |
Weight | 19.5Kg |
Glass, Type and Thickness | High Transmission, Low Iron, Tempered Glass 3.2mm |
Features
Guaranteed positive tolerance 0/+5w ensures power output reliability
Strong aluminum frames module can bear snow loads up to 5400Pa and wind loads up to 2400Pa.
Excellent performance under low light environments (mornings evenings and cloudy days)
12 years for product defects in materials and workmanship and 25 years for 80% of warranted minimum power.
Certifications and standards: IEC 61215.
Manufactured according to International Quality and Environment Management System (ISO9001, ISO14100).
FAQ
Q: What kind of loads can I run on PV?
With a correctly designed PV system you can power almost any electrical load. However, as the load size increases the expense also increases. Loads like hot water heaters, air conditioners, room heaters and electric stoves should be avoided. The added cost of trying to power loads like these is very cost prohibitive. If these loads have to be powered it will be a lot less expensive to change the appliance to use an alternative fuel type like propane.
Q: When do I need a charge controller and why?
The safest way to figure out if you need a charge controller is to take Battery Amp Hour Capacity and divide this by the Solar Panel max. power amp rating. If the quotient is above 200, you don't need a controller. If the number is less than 200 than you need a controller.
For example if you have a 100 amp hour battery and a 10 watt panel, you take 100 and divide it by .6 (600mA) and you get 166.6. Since this is less than 200 you need a charge controller. If you have a five-watt panel in the above example you take 100 divided by .3 (300mA) and you come up with 333.3. Since this is larger than 200 you do not need a charge controller. However you still need a blocking diode, to prevent the battery from discharging to the panel at night. So as a general rule of thumb you don't need a charge controller unless you have more than five watts of solar for every 100-amp hours of battery capacity.
Q: What is PV & how does it work?
PV stands for photovoltaic. Photo = Light and Voltaic = Electricity. A solar cell converts light to electricity.
A solar cell is made of silicon. Computer chips are made of this same material. Basically, when light strikes the surface of a solar cell some of it is absorbed into the silicon. This light energy bumps the electrons loose and causes energy to flow.
By packaging approximately 36 solar cells together a solar panel or a solar module is created. When you have more then one solar panels you create a solar array.
- Q: Are solar controllers necessary for small solar panel systems?
- Small solar panel systems require solar controllers. These controllers, also known as charge controllers or regulators, are vital components in any solar power system. They have the main responsibility of regulating and controlling the power that flows from the solar panels to the battery or grid. Solar controllers play a crucial role in protecting the battery from overcharging or discharging in small solar panel systems. They prevent the battery from being overcharged during sunny periods, which can harm and reduce its lifespan. Similarly, they also prevent excessive discharging during low sunlight or at night, which can cause damage as well. Additionally, solar controllers optimize the charging process by maximizing the efficiency of the solar panels. They employ techniques like pulse width modulation (PWM) or maximum power point tracking (MPPT) to ensure that the solar panels are always operating at their peak power output. This allows for the capturing of the maximum amount of energy from the sun and more effective battery charging. Furthermore, solar controllers often come with extra features such as temperature compensation, load control, and digital displays to provide information on the system's performance. These features are particularly beneficial for small solar panel systems where monitoring and control are important. In conclusion, although solar controllers may increase the cost of the system, the advantages they bring far outweigh the expense. They are indispensable components for small solar panel systems as they ensure efficient and safe operation, extend the battery's lifespan, and maximize the performance of the solar panels.
- Q: How do you prevent reverse current flow with a solar controller?
- A solar controller prevents reverse current flow by using diodes that only allow current to flow in one direction, from the solar panels to the battery. This ensures that any excess electricity generated by the panels does not flow back into the panels or damage the system.
- Q: What are the advantages of using an MPPT solar controller?
- The advantages of using an MPPT (Maximum Power Point Tracking) solar controller include improved efficiency, increased energy production, and compatibility with various solar panel configurations. MPPT controllers can track and adjust the solar panel's voltage and current to operate at the maximum power point, ensuring optimal energy conversion and maximizing the amount of electricity generated from the solar panels. Additionally, MPPT controllers can work with different types and sizes of solar panels, allowing for greater flexibility in system design and installation.
- Q: Can a solar controller be used with a solar-powered parking meter?
- Yes, a solar controller can be used with a solar-powered parking meter. A solar controller is responsible for regulating the flow of electricity from the solar panels to the battery or load, ensuring efficient charging and preventing overcharging or damage. In the case of a solar-powered parking meter, a solar controller would help manage the energy generated by the solar panels and ensure it is properly stored and utilized to power the meter's operations.
- Q: Can a solar controller be used with solar-powered telecommunications equipment?
- Yes, a solar controller can be used with solar-powered telecommunications equipment. A solar controller is responsible for regulating the voltage and managing the charging process of a solar battery system. It ensures that the solar panels are charging the batteries efficiently and protects them from overcharging or discharging. Therefore, using a solar controller is essential for maintaining the performance and longevity of solar-powered telecommunications equipment.
- Q: Can a solar controller be used for grid-tied solar systems?
- No, a solar controller cannot be used for grid-tied solar systems. Grid-tied solar systems typically use inverters to convert the direct current (DC) generated by the solar panels into alternating current (AC) that can be fed back into the grid. Solar controllers, on the other hand, are used in off-grid systems to regulate the charging and discharging of batteries.
- Q: Is it possible to connect multiple solar controllers together?
- Yes, it is possible to connect multiple solar controllers together. This can be done by connecting the positive and negative terminals of each controller in parallel, allowing them to work together to regulate and manage the charging and discharging of multiple batteries or solar panels.
- Q: How does temperature affect the charging process in a solar controller?
- Temperature can have a significant impact on the charging process in a solar controller. Solar controllers are responsible for regulating the charging of batteries in a solar power system. When the temperature increases, it can lead to certain changes in the charging process. One important consideration is the battery's capacity. Higher temperatures can cause the battery's capacity to decrease, meaning it can hold less charge. This can affect the overall charging process as the solar controller needs to adjust its charging algorithm to ensure optimal charging without overcharging the battery. Another aspect affected by temperature is the charging voltage. As temperature increases, the charging voltage needs to be adjusted to compensate for the battery's reduced capacity. This adjustment ensures that the battery receives the appropriate voltage to be charged effectively. Furthermore, temperature can impact the battery's internal resistance. Higher temperatures typically result in lower internal resistance, which can cause the battery to charge more rapidly. However, it is crucial to have a solar controller that can monitor and regulate the charging process to prevent overcharging, as excessive heat can also damage the battery. In colder temperatures, the charging process can be affected as well. When the temperature drops, the battery's capacity tends to increase. This means it can hold more charge, and the solar controller needs to adjust its charging algorithm accordingly to avoid undercharging the battery. In summary, temperature plays a crucial role in the charging process of a solar controller. It affects the battery's capacity, charging voltage, and internal resistance. A well-designed solar controller will monitor and adjust these parameters to ensure efficient and safe charging, regardless of the temperature conditions.
- Q: Can a solar controller be used with solar panel cleaning drones?
- Yes, a solar controller can be used with solar panel cleaning drones. The solar controller is responsible for regulating the power flow from the solar panels to the drone's batteries, ensuring optimal charging and preventing overcharging. By using a solar controller, the cleaning drones can effectively utilize solar energy to power their operations while maintaining the health of their batteries.
- Q: Can a solar controller be used in a solar-powered electric fence system?
- Yes, a solar controller can be used in a solar-powered electric fence system. A solar controller helps regulate the charging and discharging of the batteries in the system, ensuring efficient and effective operation of the electric fence.
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Solar Panel Controllers for Sale - Solar Modules Poly-Crystalline 250W 156*156 Module
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